Transmission parameter determination method and device, equipment and readable storage medium

Abstract

The invention discloses a transmission parameter determination method, device and equipment and a readable storage medium, and belongs to the technical field of communication, and the method comprises the steps that response equipment detects a resource group set bearing downlink control signaling; the response device determines a reverse transmission parameter according to the number of resource groups contained in the resource group set; wherein the corresponding relation between the number of resource groups contained in the resource group set and the reverse transmission parameter is indicated by the read-write device or predefined by a protocol, and the reverse transmission parameter comprises at least one of the following items: signal power transmitted by the response device; responding to the data rate transmitted by the device; responding to the information bit number transmitted by the equipment; and responding to the information type transmitted by the equipment.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a transmission parameter determination method, device, equipment and readable storage medium. Background Art

[0002] In backscatter communication (BSC), the reverse transmission parameters of the answering device can be indicated by the control command of the reader / writer, but this requires adding additional signaling indication length, and the additional signaling requires additional resource mapping design, which in turn increases the complexity of resource mapping. Summary of the invention

[0003] The embodiments of the present application provide a transmission parameter determination method, apparatus, device and readable storage medium, which can solve the problem of large signaling overhead and complex resource mapping in the indication method of reverse transmission parameters in BSC.

[0004] In a first aspect, a method for determining a transmission parameter is provided, comprising:

[0005] The answering device detects a resource group set carrying downlink control signaling;

[0006] The response device determines a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0007] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following:

[0008] The signal power transmitted by the transponder;

[0009] the data rate transmitted by the transponder;

[0010] the number of information bits transmitted by the answering device;

[0011] The type of information transmitted by the answering device.

[0012] In a second aspect, a method for determining a transmission parameter is provided, comprising:

[0013] The read / write device maps the downlink control signaling to a resource group in the resource group set;

[0014] The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0015] The signal power transmitted by the transponder;

[0016] the data rate transmitted by the transponder;

[0017] the number of information bits transmitted by the answering device;

[0018] The type of information transmitted by the answering device.

[0019] In a third aspect, a transmission parameter determination device is provided, including:

[0020] A detection module, used for the response device to detect a resource group set carrying downlink control signaling;

[0021] A determination module, configured for the response device to determine a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0022] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following:

[0023] The signal power transmitted by the transponder;

[0024] the data rate transmitted by the transponder;

[0025] the number of information bits transmitted by the answering device;

[0026] The type of information transmitted by the answering device.

[0027] In a fourth aspect, a transmission parameter determination device is provided, including:

[0028] A mapping module, used for the reading and writing device to map the downlink control signaling to the resource group in the resource group set;

[0029] The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0030] The signal power transmitted by the transponder;

[0031] the data rate transmitted by the transponder;

[0032] the number of information bits transmitted by the answering device;

[0033] The type of information transmitted by the answering device.

[0034] In a fifth aspect, a communication device is provided, which terminal 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.

[0035] In a sixth aspect, a communication device is provided, including a processor and a communication interface, wherein:

[0036] In the case where the communication device is an answering device, the processor is configured to:

[0037] The answering device detects a resource group set carrying downlink control signaling;

[0038] The response device determines a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0039] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following:

[0040] The signal power transmitted by the transponder;

[0041] the data rate transmitted by the transponder;

[0042] the number of information bits transmitted by the answering device;

[0043] The type of information transmitted by the answering device.

[0044] In the case where the communication device is a read-write device, the processor is configured to:

[0045] The read / write device maps the downlink control signaling to a resource group in the resource group set;

[0046] The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0047] The signal power transmitted by the transponder;

[0048] the data rate transmitted by the transponder;

[0049] the number of information bits transmitted by the answering device;

[0050] The type of information transmitted by the answering device.

[0051] In the seventh 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.

[0052] In an eighth aspect, a wireless communication system is provided, comprising: a response device and a read-write device, wherein the response device can be used to execute the steps of the method described in the first aspect, and the read-write device can be used to execute the steps of the method described in the second aspect.

[0053] In the ninth 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.

[0054] In the tenth 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 method as described in the first aspect, or to implement the method as described in the second aspect.

[0055] In an embodiment of the present application, the reverse transmission parameters are implicitly indicated to the answering device through the number of resource groups included in the resource group set, which can save the overhead of signaling indication and reduce the complexity of resource mapping. In addition, the various parameters of the backscatter transmission can be flexibly indicated according to the number of resource groups included in the resource group set, thereby improving the flexibility and reliability of transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1a is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0057] Figure 1b It is a schematic diagram of a BSC communication scenario;

[0058] Figure 1c It is a schematic diagram of the BSC communication principle;

[0059] Figure 1d It is a schematic diagram of information transmission between reader and tag;

[0060] Figure 1e It is a schematic diagram of the process of receiving and sending data by the Tag;

[0061] Figure 2 This is one of the flow charts of the transmission parameter determination method provided in the embodiment of the present application;

[0062] Figure 3 This is the second flow chart of the transmission parameter determination method provided in the embodiment of the present application;

[0063] Figure 4a It is one of the schematic diagrams of the application embodiment provided in the embodiment of the present application;

[0064] Figure 4b This is the second schematic diagram of the application embodiment provided in the embodiment of the present application;

[0065] Figure 4c This is the third schematic diagram of the application embodiment provided in the embodiment of the present application;

[0066] Figure 4d This is the fourth schematic diagram of the application embodiment provided in the embodiment of the present application;

[0067] Figure 4e This is the fifth schematic diagram of the application embodiment provided in the embodiment of the present application;

[0068] Figure 4f This is the sixth schematic diagram of the application embodiment provided in the embodiment of the present application;

[0069] Figure 5 It is one of the structural schematic diagrams of the transmission parameter determination device provided in the embodiment of the present application;

[0070] Figure 6 This is the second structural diagram of the transmission parameter determination device provided in the embodiment of the present application;

[0071] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0072] Figure 8 is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0073] Fig. 9 It is a structural diagram of the network side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0074] 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.

[0075] The terms "first", "second", etc. of the present 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 the present 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.

[0076] 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.

[0077] 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 above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0078] Figure 1a A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a transponder 11, a reader / writer 12, and a network side device 13. The transponder 11 may be any device supporting backscatter communication technology or radio frequency identification technology, including but not limited to a tag or a terminal. Exemplarily, the tag may be an RFID tag, which is a common name for RFID. Radio frequency identification technology may be divided into three types: active, passive, and semi-active. Accordingly, the transponder may include an active transponder, a passive transponder, and a semi-active transponder, wherein the passive transponder may also be referred to as a passive IoT device. The communication mode of the transponder may be backscattering radio frequency (RF) signals for signal transmission, or, for some active transponders, signals may be actively generated for signal transmission. Since the energy of the transponder may come from the environment, such as ambient RF energy, thermal energy, wind energy, kinetic energy, etc., the transponder may also be referred to as an ambient IoT device. The above-mentioned reading and writing device 12 can be a peer device that performs backscatter communication with the above-mentioned answering device 11, and can include but is not limited to a reader, a base station, an integrated access backhaul (Integrated Access Backhaul, IAB) node, a network-controlled relay (Network-controlled Repeater, NCR) node, an intelligent reflective surface (Reconfigurable Intelligent Surfaces, RIS) node or terminal, etc.

[0079] Among them, the above-mentioned terminal can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne equipment, a pedestrian answering device (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (PC), an ATM or a self-service machine and other answering device side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted answering device, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal is not limited in the embodiments of the present application.

[0080] The network side device 13 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as a NodeB (NB), an Evolved NodeB (eNB), a next generation NodeB (gNB), a New Radio NodeB (NR NodeB), an access point, a Relay BaseStation (RBS), a Serving Base Station (SBS), a Base TransceiverStation (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home NodeB (HNB), a Home Evolved NodeB (home evolved NodeB), a Transmission Reception Point (TRP), or other appropriate terms 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 a base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited. In order to better understand the technical solution of the present application, the following contents are first introduced:

[0081] Backscatter Communication (BSC)

[0082] Backscatter communication refers to the use of radio frequency signals from other devices or the environment to modulate the signal to transmit its own information. Backscatter communication equipment can be:

[0083] (1) The backscatter communication device in the traditional radio frequency identification (RFID) is generally a tag, which belongs to the passive Internet of Things (IoT) device (Passive-IoT).

[0084] (2) Semi-passive IoT devices, which have a certain amplification capability for downlink reception or uplink reflection;

[0085] (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.

[0086] The energy source of this type of device can come from the environment, such as ambient RF signals, thermal energy, kinetic energy, wind energy, etc., and it can also be called Ambient IoT device.

[0087] Figure 1b A BSC communication scenario is shown, in which the transmission from the reading and writing device (ie, the reader in the figure) to the answering device (ie, the tag in the figure) is downlink transmission, and the transmission from the answering device to the reading and writing device is uplink transmission.

[0088] A simple implementation method is that when the tag needs to send '1', the tag reflects the incident carrier signal, and when the tag needs to send '0', it does not reflect.

[0089] See also Figure 1c , the figure shows the BSC communication principle. The backscatter communication device controls 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:

[0090] Γ=(Z_1-Z_0) / (Z_1+Z_0)=|Γ|e^(jθ_T)

[0091] Where Z_0 is the antenna characteristic impedance and Z_1 is the load impedance. Assuming the incident signal is S_in(t), the output signal is S_out(t) = S_in(t)|Γ|e^(jθ_T). Therefore, by properly controlling the reflection coefficient, the corresponding amplitude modulation, frequency modulation or phase modulation can be achieved.

[0092] Information transmission between reader and tag in RFID

[0093] See also Figure 1d , the instructions for the Reader operation can be shown in Table 1 below:

[0094] Table 1

[0095]

[0096]

[0097] The status of the Tag tag can be shown in Table 2 below:

[0098] Table 2

[0099]

[0100] Sending and receiving process

[0101] See also Figure 1e The current UHF RFID protocol design requires the reader to send a query command (Query) and then the tag responds (Reply), that is, to generate a 16-bit random number to the reader. Then the reader sends the sequence to the tag through the ACK command, and the tag sends the relevant data to the reader.

[0102] Indication of reverse transmission parameters

[0103] Traditionally, the reverse transmission parameters of a tag need to be indicated by the reader in a control command, and the tag demodulates the downlink control command and determines the reverse transmission parameters according to the reverse transmission parameter indication information carried in the command. For example, the control command indicates the reverse scattering data rate, the reverse scattering signal power, etc.

[0104] The data rate and signal power of the reverse transmission of the answering device can be indicated by a control command, but this requires an additional signaling indication length and increases the complexity of resource mapping. Therefore, a method is needed to obtain the data rate and signal power of the reverse scattering of the answering device without signaling indication.

[0105] The following is a detailed description of the transmission parameter determination method provided in the embodiment of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

[0106] First, explain the execution nouns in the plan:

[0107] The tags mentioned in this article are uniformly described as transponder devices, and readers / base stations / IABs / NCRs / RISs are uniformly described as read-write devices.

[0108] Transponder: In one possible implementation, it can be a tag, an electronic tag, namely an RFID tag, which is the common name for RFID. RFID is the abbreviation of Radio Frequency Identification. Radio frequency identification technology can be divided into three types: active, passive and semi-active. Passive tags can also be called passive IOT, that is, passive Internet of Things devices. The communication method of the transponder can be backscattered RF signals for signal transmission, or some active tags have the ability to generate active signals. Because the energy of the transponder can come from the environment, such as ambient RF energy, thermal energy, wind energy, kinetic energy, etc., it can also be called Ambient IoT. It can also be regarded as a terminal, which can be called a terminal device.

[0109] Reader / writer device: A handheld or fixed device that reads (and sometimes writes) tag information. It can also be understood as a device that communicates with tags, such as a terminal, a base station, or a device with read / write functions, such as a reader / writer. The specifics are not limited here.

[0110] See also Figure 2 The present application provides a method for determining a transmission parameter. The method is performed by a response device and includes:

[0111] Step 201: The answering device detects a resource group set carrying downlink control signaling;

[0112] Step 202: The answering device determines a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0113] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0114] The signal power transmitted by the answering device;

[0115] The data rate transmitted by the answering device;

[0116] The number of information bits transmitted by the answering device;

[0117] The type of information transmitted by the answering device.

[0118] It should be noted that the correspondence between the number of resource groups included in the above-mentioned resource group set and the reverse transmission parameters can be carried in the downlink control command, that is, the correspondence is indicated by the read-write device, or the correspondence between the number of resource groups included in the above-mentioned resource group set and the reverse transmission parameters is predefined by the protocol, that is, a pre-set correspondence rule.

[0119] It should be noted that the number of resource groups and frequency domain positions contained in the resource group carrying the downlink control command are predefined or preconfigured by the network.

[0120] In an embodiment of the present application, the reverse transmission parameters are implicitly indicated to the answering device through the number of resource groups included in the resource group set, which can save the overhead of signaling indication and reduce the complexity of resource mapping. In addition, the various parameters of the backscatter transmission can be flexibly indicated according to the number of resource groups included in the resource group set, thereby improving the flexibility and reliability of transmission.

[0121] In a possible implementation manner, the answering device determines the signal power transmitted by the answering device according to the number of resource groups included in the resource group set, including:

[0122] When the number of resource groups included in the resource group set is less than or equal to the first threshold, the signal power transmitted by the answering device is the first power;

[0123] When the number of resource groups included in the resource group set is greater than the first threshold, the signal power transmitted by the answering device is the second power;

[0124] The first threshold is indicated by the read / write device or predefined by the protocol, and the first power is less than the second power.

[0125] In an embodiment of the present application, a resource group set threshold value N1 is set, that is, the above-mentioned first threshold. If the number N of resource groups included in the resource group set detected by the answering device is less than or equal to N1, the signal power transmitted by the answering device is determined to be P1, that is, the above-mentioned first power; if the number N of resource groups included in the resource group set detected by the answering device is greater than N1, the signal power transmitted by the answering device is determined to be P2, that is, the above-mentioned second power.

[0126] Specifically, the signal power transmitted by the above-mentioned answering device is the signal power of uplink transmission. Optionally, the uplink transmission signal power may be applied to an answering device of device C type, for example, an active type Tag.

[0127] In a possible implementation manner, the answering device determines the data rate transmitted by the answering device according to the number of resource groups included in the resource group set, including:

[0128] When the number of resource groups included in the resource group set is less than or equal to the second threshold, the data rate transmitted by the answering device is the first rate;

[0129] When the number of resource groups included in the resource group set is greater than the second threshold, the data rate transmitted by the answering device is the second rate;

[0130] The second threshold is indicated by the read / write device or predefined by the protocol, and the first rate is less than the second rate.

[0131] In an embodiment of the present application, a resource group set threshold value N2, that is, the above-mentioned second threshold, is set. If the number N of resource groups included in the resource group set detected by the response device is less than or equal to N2, the data rate transmitted by the response device is determined to be D1, that is, the above-mentioned first rate; if the number N of resource groups included in the resource group set detected by the response device is greater than N2, the data rate transmitted by the response device is determined to be D2, that is, the above-mentioned second rate.

[0132] In a possible implementation manner, the answering device determines the number of information bits transmitted by the answering device according to the number of resource groups included in the resource group set, including:

[0133] When the number of resource groups included in the resource group set is less than or equal to the third threshold, the number of information bits transmitted by the answering device is the first number of bits;

[0134] When the number of resource groups included in the resource group set is greater than the third threshold, the number of information bits transmitted by the answering device is the second number of bits;

[0135] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0136] In an embodiment of the present application, a resource group set threshold value N3, that is, the above-mentioned third threshold, is set. If the number N of resource groups included in the resource group set detected by the answering device is less than or equal to N3, then the number of information bits transmitted by the answering device is determined to be S1, that is, the above-mentioned first number of bits; if the number N of resource groups included in the resource group set detected by the answering device is greater than N3, then the number of information bits transmitted by the answering device is determined to be S2, that is, the above-mentioned second number of bits.

[0137] It should be noted that, for the case where the first number of bits is greater than the second number of bits, the case where the number of downlink resources is larger may be because there are more available resources, and then the number of resources for uplink transmission is also larger, so that more bits can be sent; for the case where the first number of bits is less than the second number of bits, it may be due to poor downlink coverage, and more resources need to be provided to meet the downlink coverage requirements, so that fewer bits need to be sent when sending uplink; the specific relationship between the first number of bits and the second number of bits can be flexibly adjusted based on the actual transmission situation.

[0138] In a possible implementation manner, the answering device determines the type of information transmitted by the answering device according to the number of resource groups included in the resource group set, including:

[0139] When the number of resource groups included in the resource group set is less than or equal to the fourth threshold, the type of information transmitted by the answering device is the first type;

[0140] When the number of resource groups included in the resource group set is greater than a fourth threshold, the type of information transmitted by the answering device is the second type;

[0141] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0142] In an embodiment of the present application, a resource group set threshold value N4, that is, the fourth threshold mentioned above, is set. If the number N of resource groups contained in the resource group set detected by the answering device is less than or equal to N4, then the type of information transmitted by the answering device is determined to be type 1, that is, the first type mentioned above; if the number N of resource groups contained in the resource group set detected by the answering device is greater than N4, then the type of information transmitted by the answering device is determined to be type 2, that is, the second type mentioned above.

[0143] It should be noted that the random number in the above-mentioned first type of information may specifically be a 16-bit random number defined in the existing protocol, or may be a random number of other lengths, which may be flexibly adjusted based on actual transmission requirements.

[0144] It should be noted that the first to fourth thresholds mentioned above can be set to the same value in a specific implementation, that is, N1=N2=N3=N4, or can be set to different values, which can be flexibly adjusted according to actual needs.

[0145] In a possible implementation manner, the answering device determines the data rate transmitted by the answering device according to the number of resource groups included in the resource group set, including:

[0146] The answering device determines, according to the number of resource groups included in the resource group set, parameters related to the data rate transmitted by the answering device;

[0147] The answering device determines the data rate of the answering device transmission according to the relevant parameters;

[0148] In an embodiment of the present application, the number of resource groups included in the resource group set can be used to indicate relevant parameters of the data rate transmitted by the response device. After the response device determines the relevant parameters of the transmission data rate based on the number of resource groups included in the resource group set, it determines the transmission data rate according to the relevant parameters.

[0149] The relevant parameters include at least one of the following:

[0150] (1) The encoding method of the signal to be sent by the answering device;

[0151] (2) a transmission data rate corresponding to an operating frequency of the signal to be transmitted by the transponder; the operating frequency may be represented by the BLF (backscatter frequency) of the transponder;

[0152] (3) Modulation mode of the signal to be sent by the answering device; for example, binary on-off keying (OOK), binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), differential binary phase shift keying (DBPSK) or offset quadrature phase shift keying (O-QPSK).

[0153] (4) The modulation and coding scheme (MCS) level of the signal to be sent by the answering device;

[0154] (5) The coding rate of the signal to be sent by the answering device;

[0155] (6) The number of repetitions of the signal to be sent by the answering device.

[0156] In a possible implementation manner, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0157] (1) Miller2 coding; Miller coding, also known as delay modulation coding;

[0158] (2) Miller4 encoding;

[0159] (3) Miller8 encoding;

[0160] (4) Manchester coding; Manchester coding, also known as split phase code, synchronization code, phase coding;

[0161] (5) FM0 coding: FM0 (Bi-Phase Space Coding) stands for Bi-Phase Space Coding.

[0162] (6) Polar coding; that is, polarization code coding.

[0163] In a possible implementation, the division of the resource group set satisfies:

[0164] The frequency domain resources are divided into multiple resource groups, and the multiple resource groups constitute a resource group set.

[0165] In an embodiment of the present application, a certain frequency domain resource is divided into multiple frequency domain segments according to the working bandwidth of the read-write device to form a resource group.

[0166] In a possible implementation manner, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0167] In a possible implementation manner, the response device detects a resource group set carrying downlink control signaling, including:

[0168] The answering device detects the leading sequence of the downlink control signaling, and determines the number of resource groups included in the resource group set according to the leading sequence;

[0169] or,

[0170] The answering device blindly detects the resource group set and determines the number of resource groups included in the resource group set.

[0171] In the embodiment of the present application, the way in which the answering device detects the resource group set may be:

[0172] (1) Based on the leading sequence of the downlink control signaling, the number of resource groups included in the resource group set is determined, that is, the reading and writing device maps the downlink control signaling on the resource group in the form of data. At the same time, a known leading sequence is set before each resource group. The design of the leading sequence is related to the number of resource groups included in the resource group set. After the answering device detects a resource group, it can detect the leading sequence before the data, thereby determining the number of resource groups included in the resource group set, determining the reverse transmission parameters, and improving the reliability of transmission;

[0173] (2) The answering device blindly detects the resource group set. Specifically, the answering device detects the downlink control command on the resource group set composed of different resource group numbers. That is, the answering device can try to detect the control command according to different resource group numbers. If the control command cannot be detected, it means that the current number of resource groups being tried is incorrect, and other resource group numbers will be tried. If the downlink control command can be demodulated, it can be determined that the current number of resource groups being tried is correct, and the reverse transmission parameters can be determined according to the number of resource groups.

[0174] See also Figure 3 The embodiment of the present application provides a method for determining transmission parameters, the execution subject of the method is a read-write device, and the method includes:

[0175] Step 301: The read / write device maps the downlink control signaling to a resource group in a resource group set;

[0176] Step 302: The read / write device sends a downlink control signaling to the answering device;

[0177] The number of resource groups included in the resource group set indicates the reverse transmission parameter of the response device. The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol. The reverse transmission parameter includes at least one of the following:

[0178] The signal power transmitted by the answering device;

[0179] The data rate transmitted by the answering device;

[0180] The number of information bits transmitted by the answering device;

[0181] The type of information transmitted by the answering device.

[0182] It should be noted that the read / write device is the opposite side entity of the answering device, and the relevant description in the method on the read / write device side can directly refer to the relevant description in the method on the answering device side, and will not be repeated here.

[0183] In a possible implementation manner, the number of resource groups included in the resource group set indicates the signal power transmitted by the answering device, including:

[0184] When the number of resource groups included in the resource group set is less than or equal to the first threshold, instructing the answering device to transmit a signal with a first power;

[0185] In a case where the number of resource groups included in the resource group set is greater than the first threshold, instructing the answering device to transmit a signal with a second power;

[0186] The first threshold is indicated by the read / write device or predefined by the protocol, and the first power is less than the second power.

[0187] In a possible implementation manner, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0188] In a case where the number of resource groups included in the resource group set is less than or equal to the second threshold, instructing the answering device to transmit data at a first rate;

[0189] In a case where the number of resource groups included in the resource group set is greater than a second threshold, instructing the answering device to transmit data at a second rate;

[0190] The second threshold is indicated by the read / write device or predefined by the protocol, and the first rate is less than the second rate.

[0191] In a possible implementation manner, the number of resource groups included in the resource group set indicates the number of information bits transmitted by the answering device, including:

[0192] When the number of resource groups included in the resource group set is less than or equal to the third threshold, instructing the number of information bits transmitted by the answering device to be the first number of bits;

[0193] When the number of resource groups included in the resource group set is greater than a third threshold, instructing the number of information bits transmitted by the answering device to be a second number of bits;

[0194] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0195] In a possible implementation manner, the number of resource groups included in the resource group set indicates the type of information transmitted by the answering device, including:

[0196] In a case where the number of resource groups included in the resource group set is less than or equal to a fourth threshold, indicating that the type of information transmitted by the answering device is the first type;

[0197] In a case where the number of resource groups included in the resource group set is greater than a fourth threshold, indicating that the type of information transmitted by the answering device is the second type;

[0198] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0199] In a possible implementation manner, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0200] The number of resource groups included in the resource group set indicates the relevant parameters of the data rate transmitted by the answering device;

[0201] The relevant parameters include at least one of the following:

[0202] The encoding method of the signal to be sent by the answering device;

[0203] The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device;

[0204] The modulation method of the signal to be sent by the answering device;

[0205] The MCS level corresponding to the signal to be sent by the answering device;

[0206] The coding rate corresponding to the signal to be sent by the answering device;

[0207] The number of repetitions of the signal to be sent by the answering device.

[0208] In a possible implementation manner, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0209] Miller2 encoding;

[0210] Miller4 encoding;

[0211] Miller8 encoding;

[0212] Manchester encoding;

[0213] FM0 encoding;

[0214] polar encoding.

[0215] In a possible implementation, the division of the resource group set satisfies:

[0216] The frequency domain resources are divided into multiple resource groups, and the multiple resource groups constitute a resource group set.

[0217] In a possible implementation manner, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0218] In a possible implementation, the method further includes:

[0219] The read / write device sets the leading sequence of the downlink control signaling;

[0220] The leading sequence indicates the number of resource groups included in the resource group set.

[0221] The technical solution of the present application is described below in conjunction with specific application examples:

[0222] Example 1: Correspondence between resource group sets and resource groups

[0223] According to the bandwidth of the read / write device, a certain frequency domain resource is divided into multiple frequency domain segments to form a resource group. The size of the resource group (that is, the number of resource groups included in the resource group set) and the frequency domain position can be preconfigured. The protection interval between resource groups is preconfigured / predefined, such as Figure 4a shown.

[0224] The concept of resource group set refers to different numbers of resource groups as a set. For example, if there are four resource groups, when the resource group set is 1, each group has only one resource group. At this time, there are four groups with resource group set 1. When the resource group set is 2, each group has two resource groups. At this time, there are two groups with resource group set 2. When the resource group set is 4, each group has four resource groups. At this time, there is one group with resource group set 4. The possible values ​​of resource group set are {1,2,4,8}. Figure 4bshown.

[0225] like Figure 4b As shown, when the downlink control command is mapped on the resource group whose resource group set is 1, the possible mapping resource groups are mapped to [resource group 1] or [resource group 2] or [resource group 3] or [resource group 4]. When the downlink control command is mapped on the resource group whose resource group set is 2, the possible mapping positions are [resource group 1, resource group 2] or [resource group 3, resource group 4]. When the downlink control command is mapped on the resource group whose resource group set is 4, the possible mapping positions are [resource group 1, resource group 2, resource group 3, resource group 4].

[0226] Example 2: Correspondence between resource group sets and resource groups

[0227] Since the answering device does not know the specific resource group set to which the read / write device sends the resource group, the answering device needs to perform a blind detection process. Blindly detect the signaling carried in the resource group from the possible resource group sets. For example, the read / write device maps the control command to a resource group with a resource group set of 4. At this time, the answering device starts blind detection from a resource group set size of 1, and cannot correctly detect the downlink control command. Then, it starts blind detection from a resource group set size of 2, and still cannot correctly detect the downlink control command. It starts blind detection from a resource group set size of 4, which is consistent with the resource group set to which the read / write device sends data, so the downlink control command can be blindly detected. At this point, the answering device knows the resource group set used by the read / write device, and determines at least one of the following parameters based on the binding relationship between the resource group set and the reverse transmission parameters of the answering device:

[0228] The signal power transmitted by the answering device;

[0229] The data rate transmitted by the answering device;

[0230] The number of information bits transmitted by the answering device;

[0231] The type of signal transmitted by the answering device;

[0232] The size of the resource group set is determined through blind detection, and then the reverse transmission parameters are determined to improve the reliability of transmission;

[0233] Specifically, Figure 4c As shown, if the downlink control command is mapped on four transmission resource groups, the answering device performs blind detection of the downlink transmission resources with a resource group set size of 1. After four blind detections, the answering device cannot detect the control command, and thus cannot determine the number of resource groups occupied by the downlink transmission resources.

[0234] Similarly, if Figure 4dAs shown, when the answering device performs detection with a resource group set size of 2, after two blind detections, it is still unable to detect the downlink control command, and further, it is also unable to determine the number of resource groups occupied by the downlink transmission resources.

[0235] like Figure 4e As shown, since the downlink control command occupies four resource groups, when the answering device detects with a resource group set size of 4, it can demodulate the downlink control command, so that the number of downlink resource groups can be determined to be 4. According to the binding relationship between the resource group set size and the reverse transmission, the reverse transmission parameters can be determined.

[0236] Embodiment 3: The answering device determines the resource group set size according to a certain resource group

[0237] In one embodiment, the control command of the read / write device is mapped on multiple resource groups. At this time, if only one resource group is detected, it is impossible to demodulate the carried control command or determine the number of resource groups included in the resource group set.

[0238] One feasible way is to design the preamble sequence before the data. Different preamble sequences are designed for different resource group set sizes, and these sequences are known to both the reading and writing device and the answering device. Assuming that the control command of the reading and writing device is mapped on 4 resource groups at this time, there is a corresponding preamble sequence on each resource group. When the answering device detects the preamble sequence on one or more resource groups, according to the binding relationship between the preamble sequence and the resource group set, the number of resource groups contained in the downlink resource group set carrying the control command can be quickly determined, thereby demodulating the downlink control command carried, and determining the reverse transmission parameters according to the binding relationship between the resource group set size and the reverse transmission parameters of the answering device, thereby improving the reliability of transmission.

[0239] like Figure 4f As shown, the read-write device maps the control command in the form of data onto four resource groups. At the same time, there is a known preamble sequence before each resource group. The design of the preamble sequence is related to the number of resource groups included in the resource group set. For example, when the resource group set size is 4, the format of the preamble sequence is: preamble sequence_4, and when the resource group set size is 2, the format of the preamble sequence is: preamble sequence_2.

[0240] At the receiving end, if only one resource group is detected at this time, and the data carried on this resource group is Data_1, since it is not the complete data length, the control command cannot be demodulated. However, the leading sequence before the data can be detected at this time. The answering device knows that the resource group set size used by the read-write device is 4 according to the leading sequence_4, that is, the resource group set formed by the four adjacent resource groups can be directly detected at this time, thereby improving the detection speed. And according to the number of resource groups contained in the resource group set and the binding relationship with the transmission power / data rate, the reverse transmission parameters are determined to improve the reliability of transmission.

[0241] Embodiment 4: Determining reverse transmission parameters according to the number of resource groups included in the resource group set

[0242] When the answering device detects the number of resource groups included in the resource group set carrying the downlink control command, the corresponding reverse transmission parameter can be determined according to the binding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter. The binding relationship can be the following:

[0243] One embodiment is to define a reference resource group set N1. When the resource group set N carrying the downlink control command is less than / less than or equal to N1, the signal power of the uplink transmission of the answering device is P1. When the resource group set N carrying the downlink control command is greater than or equal to / greater than N1, the signal power of the uplink transmission of the answering device is P2. The value of the signal power P1 is less than P2. Of course, it is not ruled out that multiple reference resource group set sizes are defined. When N falls within a certain reference resource group set range, the answering device adopts the corresponding uplink transmission signal power. The answering device with uplink power definition can be a Device C type device, which has the ability to adjust signal power.

[0244] Another possible embodiment is to define a reference resource group set N1. When the resource group set N carrying the downlink control command is less than / less than or equal to N1, the data rate of the uplink transmission of the response device is D1. When the resource group set N carrying the downlink control command is greater than or equal to / greater than N1, the data rate of the uplink transmission of the response device is D2. The data transmission rate D1 is greater than D2. Of course, it is not excluded to define multiple reference resource group set sizes. When N falls within a certain reference resource group set range, the response device adopts the corresponding uplink transmission data rate to improve the reliability of transmission.

[0245] Another possible embodiment is to define a reference resource group set N1. When the resource group set N carrying the downlink control command is less than / less than or equal to N1, the number of information bits transmitted by the response device in the uplink is S1. When the resource group set N carrying the downlink control command is greater than or equal to / greater than N1, the number of information bits transmitted by the response device in the uplink is S2. When the number of downlink resources is large, it may be because the number of available resources is large, so the number of uplink transmission resources is also large, so more bits can be sent, and the number of bits S1 is less than the number of bits S2; it may also be because the downlink coverage is poor, and more resources need to be provided in the downlink to meet the downlink coverage requirements, so that when sending in the uplink, fewer bits need to be sent, so the number of bits S1> the number of bits S2. Of course, it is not ruled out that multiple reference resource group set sizes are defined. When N falls within a certain reference resource group set range, the response device adopts the corresponding number of uplink transmission bits.

[0246] Embodiment 5: Determining reverse transmission parameters according to the number of resource groups included in the resource group set

[0247] In another possible embodiment, the device determines the type of information to be reported according to the detected resource group set size, and the information type may be:

[0248] a) Report RN16, random number, and random sequence (the number of transmitted data bits is small, corresponding to the situation of poor coverage);

[0249] b) Report at least one item of device ID and data information (more data bits are transmitted, corresponding to better coverage).

[0250] The transmission parameter determination method provided in the embodiment of the present application may be executed by a transmission parameter determination device. In the embodiment of the present application, the transmission parameter determination device executing the transmission parameter determination method is taken as an example to illustrate the transmission parameter determination device provided in the embodiment of the present application.

[0251] See also Figure 5 The embodiment of the present application provides a transmission parameter determination device, which can be applied to a response device, and the device includes:

[0252] A detection module 501, configured for a response device to detect a resource group set carrying downlink control signaling;

[0253] A determination module 502, configured for the response device to determine a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0254] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following:

[0255] The signal power transmitted by the transponder;

[0256] the data rate transmitted by the transponder;

[0257] the number of information bits transmitted by the answering device;

[0258] The type of information transmitted by the answering device.

[0259] Optionally, the determining module is specifically configured to:

[0260] When the number of resource groups included in the resource group set is less than or equal to a first threshold, the signal power transmitted by the answering device is a first power;

[0261] When the number of resource groups included in the resource group set is greater than the first threshold, the signal power transmitted by the answering device is a second power;

[0262] The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

[0263] Optionally, the determining module is specifically configured to:

[0264] When the number of resource groups included in the resource group set is less than or equal to a second threshold, the data rate transmitted by the answering device is a first rate;

[0265] When the number of resource groups included in the resource group set is greater than a second threshold, the data rate transmitted by the answering device is a second rate;

[0266] The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

[0267] Optionally, the determining module is specifically configured to:

[0268] When the number of resource groups included in the resource group set is less than or equal to a third threshold, the number of information bits transmitted by the answering device is a first number of bits;

[0269] When the number of resource groups included in the resource group set is greater than a third threshold, the number of information bits transmitted by the answering device is a second number of bits;

[0270] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0271] Optionally, the determining module is specifically configured to:

[0272] When the number of resource groups included in the resource group set is less than or equal to a fourth threshold, the type of information transmitted by the answering device is a first type;

[0273] When the number of resource groups included in the resource group set is greater than a fourth threshold, the type of information transmitted by the answering device is the second type;

[0274] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0275] Optionally, the determining module is specifically configured to:

[0276] The answering device determines, according to the number of resource groups included in the resource group set, parameters related to the data rate transmitted by the answering device;

[0277] The answering device determines, according to the relevant parameters, a data rate transmitted by the answering device;

[0278] The relevant parameters include at least one of the following:

[0279] The encoding method of the signal to be sent by the answering device;

[0280] The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device;

[0281] The modulation mode of the signal to be sent by the answering device;

[0282] The modulation and coding scheme MCS level corresponding to the signal to be sent by the answering device;

[0283] The coding rate corresponding to the signal to be sent by the answering device;

[0284] The number of repetitions of the signal to be sent by the answering device.

[0285] Optionally, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0286] Miller2 encoding;

[0287] Miller4 encoding;

[0288] Miller8 encoding;

[0289] Manchester encoding;

[0290] FM0 encoding;

[0291] polar encoding.

[0292] Optionally, the division of the resource group set satisfies:

[0293] The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

[0294] Optionally, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0295] Optionally, the detection module is specifically used to:

[0296] The response device detects a preamble sequence of the downlink control signaling, and determines the number of resource groups included in the resource group set according to the preamble sequence;

[0297] or,

[0298] The answering device blindly detects the resource group set and determines the number of resource groups included in the resource group set.

[0299] Optionally, the detection module is specifically used to:

[0300] The response device attempts to detect the downlink control command on a resource group set consisting of different numbers of resource groups.

[0301] See also Figure 6 The embodiment of the present application provides a transmission parameter determination device, which can be applied to a read-write device, and the device includes:

[0302] A mapping module 601 is used for the reading and writing device to map the downlink control signaling to the resource group in the resource group set;

[0303] A sending module 602, configured for the reader / writer device to send the downlink control signaling to the answering device;

[0304] The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0305] The signal power transmitted by the transponder;

[0306] the data rate transmitted by the transponder;

[0307] the number of information bits transmitted by the answering device;

[0308] The type of information transmitted by the answering device.

[0309] Optionally, the number of resource groups included in the resource group set indicates the signal power transmitted by the answering device, including:

[0310] In a case where the number of resource groups included in the resource group set is less than or equal to a first threshold, instructing the signal power transmitted by the answering device to be a first power;

[0311] In a case where the number of resource groups included in the resource group set is greater than a first threshold, instructing the signal power transmitted by the answering device to be a second power;

[0312] The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

[0313] Optionally, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0314] In a case where the number of resource groups included in the resource group set is less than or equal to a second threshold, instructing the answering device to transmit data at a first rate;

[0315] In a case where the number of resource groups included in the resource group set is greater than a second threshold, instructing the answering device to transmit data at a second rate;

[0316] The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

[0317] Optionally, the number of resource groups included in the resource group set indicates the number of information bits transmitted by the answering device, including:

[0318] In a case where the number of resource groups included in the resource group set is less than or equal to a third threshold, indicating that the number of information bits transmitted by the answering device is a first number of bits;

[0319] In a case where the number of resource groups included in the resource group set is greater than a third threshold, indicating that the number of information bits transmitted by the answering device is a second number of bits;

[0320] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0321] Optionally, the number of resource groups included in the resource group set indicates the type of information transmitted by the response device, including:

[0322] In a case where the number of resource groups included in the resource group set is less than or equal to a fourth threshold, indicating that the type of information transmitted by the answering device is a first type;

[0323] In a case where the number of resource groups included in the resource group set is greater than a fourth threshold, indicating that the type of information transmitted by the answering device is a second type;

[0324] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0325] Optionally, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0326] The number of resource groups included in the resource group set indicates parameters related to the data rate transmitted by the answering device;

[0327] The relevant parameters include at least one of the following:

[0328] The encoding method of the signal to be sent by the answering device;

[0329] The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device;

[0330] The modulation mode of the signal to be sent by the answering device;

[0331] The MCS level corresponding to the signal to be sent by the answering device;

[0332] The coding rate corresponding to the signal to be sent by the answering device;

[0333] The number of repetitions of the signal to be sent by the answering device.

[0334] Optionally, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0335] Miller2 encoding;

[0336] Miller4 encoding;

[0337] Miller8 encoding;

[0338] Manchester encoding;

[0339] FM0 encoding;

[0340] polar encoding.

[0341] Optionally, the division of the resource group set satisfies:

[0342] The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

[0343] Optionally, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0344] Optionally, the device further comprises:

[0345] A setting module, used for the read / write device to set the leading sequence of the downlink control signaling;

[0346] The leading sequence indicates the number of resource groups included in the resource group set.

[0347] The transmission parameter determination device 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 an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be another device other than a terminal. Exemplarily, 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.

[0348] The transmission parameter determination device provided in the embodiment of the present application can achieve Figures 2 to 4f The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0349] like Figure 7 As shown, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, and the memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a response device, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned response device side method embodiment, and can achieve the same technical effect. When the communication device 700 is a read-write device, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned read-write device side method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0350] 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 2 Or the steps in the method embodiment shown in 3. This terminal embodiment corresponds to the above-mentioned method embodiment on the answering device side or the method embodiment on the reading and writing device side. 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, Figure 8 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0351] The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809 and at least some of the components of a processor 810.

[0352] Those skilled in the art will appreciate that the terminal 800 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 810 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The 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.

[0353] It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 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 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 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.

[0354] In the embodiment of the present application, when the terminal is a transponder, after receiving the downlink data from the read-write device, the RF unit 801 can transmit the data to the processor 810 for processing; in addition, the RF unit 801 can send uplink data to the read-write device. In the case where the terminal is a read-write device, after receiving the uplink data from the transponder, the RF unit 801 can transmit the data to the processor 810 for processing; in addition, the RF unit 801 can send uplink data to the transponder. Generally, the RF unit 801 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

[0355] The memory 809 can be used to store software programs or instructions and various data. The memory 809 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 809 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 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0356] The processor 810 may include one or more processing units; optionally, the processor 810 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 810.

[0357] In the case where the terminal is an answering device,

[0358] Processor 810, configured to detect, by a response device, a resource group set carrying downlink control signaling;

[0359] Processor 810, configured for the response device to determine a reverse transmission parameter according to the number of resource groups included in the resource group set;

[0360] The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following:

[0361] The signal power transmitted by the transponder;

[0362] the data rate transmitted by the transponder;

[0363] the number of information bits transmitted by the answering device;

[0364] The type of information transmitted by the answering device.

[0365] Optionally, the processor 810 is specifically configured to:

[0366] When the number of resource groups included in the resource group set is less than or equal to a first threshold, the signal power transmitted by the answering device is a first power;

[0367] When the number of resource groups included in the resource group set is greater than the first threshold, the signal power transmitted by the answering device is a second power;

[0368] The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

[0369] Optionally, the processor 810 is specifically configured to:

[0370] When the number of resource groups included in the resource group set is less than or equal to a second threshold, the data rate transmitted by the answering device is a first rate;

[0371] When the number of resource groups included in the resource group set is greater than a second threshold, the data rate transmitted by the answering device is a second rate;

[0372] The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

[0373] Optionally, the processor 810 is specifically configured to:

[0374] When the number of resource groups included in the resource group set is less than or equal to a third threshold, the number of information bits transmitted by the answering device is a first number of bits;

[0375] When the number of resource groups included in the resource group set is greater than a third threshold, the number of information bits transmitted by the answering device is a second number of bits;

[0376] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0377] Optionally, the processor 810 is specifically configured to:

[0378] When the number of resource groups included in the resource group set is less than or equal to a fourth threshold, the type of information transmitted by the answering device is a first type;

[0379] When the number of resource groups included in the resource group set is greater than a fourth threshold, the type of information transmitted by the answering device is the second type;

[0380] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0381] Optionally, the processor 810 is specifically configured to:

[0382] The answering device determines, according to the number of resource groups included in the resource group set, parameters related to the data rate transmitted by the answering device;

[0383] The answering device determines, according to the relevant parameters, a data rate transmitted by the answering device;

[0384] The relevant parameters include at least one of the following:

[0385] The encoding method of the signal to be sent by the answering device;

[0386] The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device;

[0387] The modulation mode of the signal to be sent by the answering device;

[0388] The modulation and coding scheme MCS level corresponding to the signal to be sent by the answering device;

[0389] The coding rate corresponding to the signal to be sent by the answering device;

[0390] The number of repetitions of the signal to be sent by the answering device.

[0391] Optionally, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0392] Miller2 encoding;

[0393] Miller4 encoding;

[0394] Miller8 encoding;

[0395] Manchester encoding;

[0396] FM0 encoding;

[0397] polar encoding.

[0398] Optionally, the division of the resource group set satisfies:

[0399] The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

[0400] Optionally, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0401] Optionally, the processor 810 is specifically configured to:

[0402] The response device detects a preamble sequence of the downlink control signaling, and determines the number of resource groups included in the resource group set according to the preamble sequence;

[0403] or,

[0404] The answering device blindly detects the resource group set and determines the number of resource groups included in the resource group set.

[0405] Optionally, the processor 810 is specifically configured to:

[0406] The response device attempts to detect the downlink control command on a resource group set consisting of different numbers of resource groups.

[0407] In the case where the terminal is an answering device,

[0408] Processor 810, configured to read and write the device to map the downlink control signaling to a resource group in the resource group set;

[0409] The radio frequency unit 801 is used for the reader / writer to send the downlink control signaling to the answering device;

[0410] The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following:

[0411] The signal power transmitted by the transponder;

[0412] the data rate transmitted by the transponder;

[0413] the number of information bits transmitted by the answering device;

[0414] The type of information transmitted by the answering device.

[0415] Optionally, the number of resource groups included in the resource group set indicates the signal power transmitted by the answering device, including:

[0416] In a case where the number of resource groups included in the resource group set is less than or equal to a first threshold, instructing the signal power transmitted by the answering device to be a first power;

[0417] In a case where the number of resource groups included in the resource group set is greater than a first threshold, instructing the signal power transmitted by the answering device to be a second power;

[0418] The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

[0419] Optionally, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0420] In a case where the number of resource groups included in the resource group set is less than or equal to a second threshold, instructing the answering device to transmit data at a first rate;

[0421] In a case where the number of resource groups included in the resource group set is greater than a second threshold, instructing the answering device to transmit data at a second rate;

[0422] The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

[0423] Optionally, the number of resource groups included in the resource group set indicates the number of information bits transmitted by the answering device, including:

[0424] In a case where the number of resource groups included in the resource group set is less than or equal to a third threshold, indicating that the number of information bits transmitted by the answering device is a first number of bits;

[0425] In a case where the number of resource groups included in the resource group set is greater than a third threshold, indicating that the number of information bits transmitted by the answering device is a second number of bits;

[0426] The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

[0427] Optionally, the number of resource groups included in the resource group set indicates the type of information transmitted by the response device, including:

[0428] In a case where the number of resource groups included in the resource group set is less than or equal to a fourth threshold, indicating that the type of information transmitted by the answering device is a first type;

[0429] In a case where the number of resource groups included in the resource group set is greater than a fourth threshold, indicating that the type of information transmitted by the answering device is a second type;

[0430] The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

[0431] Optionally, the number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including:

[0432] The number of resource groups included in the resource group set indicates parameters related to the data rate transmitted by the answering device;

[0433] The relevant parameters include at least one of the following:

[0434] The encoding method of the signal to be sent by the answering device;

[0435] The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device;

[0436] The modulation mode of the signal to be sent by the answering device;

[0437] The MCS level corresponding to the signal to be sent by the answering device;

[0438] The coding rate corresponding to the signal to be sent by the answering device;

[0439] The number of repetitions of the signal to be sent by the answering device.

[0440] Optionally, the encoding method of the signal to be sent by the answering device includes at least one of the following:

[0441] Miller2 encoding;

[0442] Miller4 encoding;

[0443] Miller8 encoding;

[0444] Manchester encoding;

[0445] FM0 encoding;

[0446] polar encoding.

[0447] Optionally, the division of the resource group set satisfies:

[0448] The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

[0449] Optionally, the number of resource groups included in the resource group set is preconfigured or predefined by a protocol.

[0450] Optionally, the processor 810 is further configured for the read / write device to set a leading sequence of the downlink control signaling;

[0451] The leading sequence indicates the number of resource groups included in the resource group set.

[0452] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0453] 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 3 The steps of the method embodiment shown. The network side device embodiment corresponds to the above-mentioned read-write device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the network side device embodiment and can achieve the same technical effect.

[0454] Specifically, the embodiment of the present application also provides a network side device. Fig. 9 As shown, the network side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94 and a memory 95. The antenna 91 is connected to the radio frequency device y2. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. The radio frequency device 92 processes the received information and sends it out through the antenna 91.

[0455] The method executed by the reading and writing device in the above embodiment can be implemented in the baseband device 93, which includes a baseband processor.

[0456] The baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig. 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 through a bus interface to call the program in the memory 95 to execute the read and write device operations shown in the above method embodiment.

[0457] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0458] Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, and the processor 94 calls the instructions or programs in the memory 905 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0459] 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, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0460] 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.

[0461] 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 method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0462] 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.

[0463] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0464] An embodiment of the present application also provides a wireless communication system, including: a response device and a read-write device, wherein the response device can be used to execute the steps of the response device side method as described above, and the read-write device can be used to execute the steps of the read-write device side method as described above.

[0465] 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.

[0466] 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.

[0467] 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 a transmission parameter, characterized in that: include: The answering device detects a resource group set carrying downlink control signaling; The response device determines a reverse transmission parameter according to the number of resource groups included in the resource group set; The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following: The signal power transmitted by the transponder; the data rate transmitted by the transponder; the number of information bits transmitted by the answering device; The type of information transmitted by the answering device.

2. The method according to claim 1, characterized in that The answering device determines the signal power transmitted by the answering device according to the number of resource groups included in the resource group set, including: When the number of resource groups included in the resource group set is less than or equal to a first threshold, the signal power transmitted by the answering device is a first power; When the number of resource groups included in the resource group set is greater than the first threshold, the signal power transmitted by the answering device is a second power; The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

3. The method according to claim 1, characterized in that The response device determines, according to the number of resource groups included in the resource group set, a data rate transmitted by the response device, including: When the number of resource groups included in the resource group set is less than or equal to a second threshold, the data rate transmitted by the answering device is a first rate; When the number of resource groups included in the resource group set is greater than a second threshold, the data rate transmitted by the answering device is a second rate; The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

4. The method according to claim 1, characterized in that: The response device determines the number of information bits transmitted by the response device according to the number of resource groups included in the resource group set, including: When the number of resource groups included in the resource group set is less than or equal to a third threshold, the number of information bits transmitted by the answering device is a first number of bits; When the number of resource groups included in the resource group set is greater than a third threshold, the number of information bits transmitted by the answering device is a second number of bits; The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

5. The method according to claim 1, characterized in that The response device determines the type of information transmitted by the response device according to the number of resource groups included in the resource group set, including: When the number of resource groups included in the resource group set is less than or equal to a fourth threshold, the type of information transmitted by the answering device is a first type; When the number of resource groups included in the resource group set is greater than a fourth threshold, the type of information transmitted by the answering device is the second type; The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

6. The method according to claim 1, characterized in that The response device determines, according to the number of resource groups included in the resource group set, a data rate transmitted by the response device, including: The answering device determines, according to the number of resource groups included in the resource group set, parameters related to the data rate transmitted by the answering device; The answering device determines, according to the relevant parameters, a data rate transmitted by the answering device; The relevant parameters include at least one of the following: The encoding method of the signal to be sent by the answering device; The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device; The modulation mode of the signal to be sent by the answering device; The modulation and coding scheme MCS level corresponding to the signal to be sent by the answering device; The coding rate corresponding to the signal to be sent by the answering device; The number of repetitions of the signal to be sent by the answering device.

7. The method according to claim 6, characterized in that The encoding method of the signal to be sent by the answering device includes at least one of the following: Miller2 encoding; Miller4 encoding; Miller8 encoding; Manchester encoding; FM0 encoding; polar encoding.

8. The method according to claim 1, characterized in that The division of the resource group set satisfies: The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

9. The method according to claim 1, characterized in that: The response device detects a resource group set carrying downlink control signaling, including: The response device detects a preamble sequence of the downlink control signaling, and determines the number of resource groups included in the resource group set according to the preamble sequence; or, The answering device blindly detects the resource group set and determines the number of resource groups included in the resource group set.

10. The method according to claim 9, characterized in that The answering device blindly checks the resource group set, including: The response device detects the downlink control command on a resource group set consisting of different numbers of resource groups.

11. A method for determining transmission parameters, characterized in that: include: The read / write device maps the downlink control signaling to a resource group in the resource group set; The reading and writing device sends the downlink control signaling to the answering device; The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following: The signal power transmitted by the transponder; the data rate transmitted by the transponder; the number of information bits transmitted by the answering device; The type of information transmitted by the answering device.

12. The method according to claim 11, characterized in that The number of resource groups included in the resource group set indicates the signal power transmitted by the answering device, including: In a case where the number of resource groups included in the resource group set is less than or equal to a first threshold, instructing the signal power transmitted by the answering device to be a first power; In a case where the number of resource groups included in the resource group set is greater than a first threshold, instructing the signal power transmitted by the answering device to be a second power; The first threshold is indicated by a read / write device or predefined by a protocol, and the first power is less than the second power.

13. The method according to claim 11, characterized in that The number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including: In a case where the number of resource groups included in the resource group set is less than or equal to a second threshold, instructing the answering device to transmit data at a first rate; In a case where the number of resource groups included in the resource group set is greater than a second threshold, instructing the answering device to transmit data at a second rate; The second threshold is indicated by a read / write device or predefined by a protocol, and the first rate is less than the second rate.

14. The method according to claim 11, characterized in that The number of resource groups included in the resource group set indicates the number of information bits transmitted by the answering device, including: In a case where the number of resource groups included in the resource group set is less than or equal to a third threshold, indicating that the number of information bits transmitted by the answering device is a first number of bits; In a case where the number of resource groups included in the resource group set is greater than a third threshold, indicating that the number of information bits transmitted by the answering device is a second number of bits; The third threshold is indicated by the read / write device or predefined by the protocol, the first number of bits is smaller than the second number of bits, or the first number of bits is larger than the second number of bits.

15. The method according to claim 11, characterized in that The number of resource groups included in the resource group set indicates the type of information transmitted by the response device, including: In a case where the number of resource groups included in the resource group set is less than or equal to a fourth threshold, indicating that the type of information transmitted by the answering device is a first type; In a case where the number of resource groups included in the resource group set is greater than a fourth threshold, indicating that the type of information transmitted by the answering device is a second type; The fourth threshold is indicated by the reading and writing device or predefined by the protocol, the first type of information includes at least one of a random number and a random sequence, and the second type of information includes at least one of an identification of the answering device and data information.

16. The method according to claim 11, characterized in that The number of resource groups included in the resource group set indicates a data rate transmitted by the answering device, including: The number of resource groups included in the resource group set indicates a parameter related to a data rate transmitted by the answering device; The relevant parameters include at least one of the following: The encoding method of the signal to be sent by the answering device; The transmission data rate corresponding to the operating frequency of the signal to be sent by the answering device; The modulation mode of the signal to be sent by the answering device; The MCS level corresponding to the signal to be sent by the answering device; The coding rate corresponding to the signal to be sent by the answering device; The number of repetitions of the signal to be sent by the answering device.

17. The method according to claim 16, characterized in that The encoding method of the signal to be sent by the answering device includes at least one of the following: Miller2 encoding; Miller4 encoding; Miller8 encoding; Manchester encoding; FM0 encoding; polar encoding.

18. The method according to claim 11, characterized in that The division of the resource group set satisfies: The frequency domain resources are divided into a plurality of resource groups, and the plurality of resource groups constitute a resource group set.

19. The method according to claim 11, characterized in that The method further comprises: The read / write device sets a leading sequence of the downlink control signaling; The leading sequence indicates the number of resource groups included in the resource group set.

20. A transmission parameter determination device, characterized in that: include: A detection module, used for the response device to detect a resource group set carrying downlink control signaling; A determination module, configured for the response device to determine a reverse transmission parameter according to the number of resource groups included in the resource group set; The corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by a read / write device or predefined by a protocol, and the reverse transmission parameter includes at least one of the following: The signal power transmitted by the transponder; the data rate transmitted by the transponder; the number of information bits transmitted by the answering device; The type of information transmitted by the answering device.

21. A transmission parameter determination device, characterized in that: include: A mapping module, used for the reading and writing device to map the downlink control signaling to the resource group in the resource group set; A sending module, used for the reading and writing device to send the downlink control signaling to the answering device; The number of resource groups included in the resource group set indicates a reverse transmission parameter of the response device, the corresponding relationship between the number of resource groups included in the resource group set and the reverse transmission parameter is indicated by the read / write device or predefined by the protocol, and the reverse transmission parameter includes at least one of the following: The signal power transmitted by the transponder; the data rate transmitted by the transponder; the number of information bits transmitted by the answering device; The type of information transmitted by the answering 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 transmission parameter determination method as described in any one of claims 1 to 10, or the steps of the transmission parameter determination method as described in any one of claims 11 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, the steps of the transmission parameter determination method according to any one of claims 1 to 10 are implemented, or the steps of the transmission parameter determination method according to any one of claims 11 to 19 are implemented.

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