Capability reporting method, device, backscattering device and first communication device

Abstract

The present application discloses a capability reporting method, apparatus, backscatter device and first communication device, belonging to the field of communication technology. The capability reporting method of an embodiment of the present application includes: the backscatter device reports first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of the amplifier.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a capability reporting method, apparatus, backscattering device, and first communication device. Background Art

[0002] In a backscatter (BSC) communication scenario, before performing signal processing and transmission operations, the BSC device needs to configure the antenna switching transmission mode of the BSC device so that the BSC device performs corresponding signal processing and transmission operations based on the configured antenna switching transmission mode.

[0003] Based on this, how to accurately configure the antenna switching transmission mode of the BSC device is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The embodiments of the present application provide a capability reporting method, apparatus, backscattering device, and first communication device, which can accurately configure the antenna switching transmission mode of the BSC device, thereby improving the accuracy of the configuration.

[0005] In a first aspect, a capability reporting method is provided, the method comprising:

[0006] The backscatter device reports first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device.

[0007] The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0008] In a second aspect, a capability reporting device is provided, the capability reporting device comprising:

[0009] The reporting unit is configured to report first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device.

[0010] The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0011] In a third aspect, a capability reporting method is provided, the method comprising:

[0012] A first communication device receives first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0013] The first communication device determines an antenna switching transmission mode of the backscatter device according to the first capability information.

[0014] The first communication device sends instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0015] In a fourth aspect, a capability reporting device is provided, the capability reporting device comprising:

[0016] A first receiving unit is used to receive first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0017] A processing unit is configured to determine an antenna switching transmission mode of the backscatter device according to the first capability information.

[0018] A sending unit is used to send instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0019] In a fifth aspect, a capability reporting method is provided, the method comprising:

[0020] The backscatter device reports basic capability information and request information to the first communication device; the indication information includes any one of the following or a combination thereof:

[0021] Antenna combination information;

[0022] Antenna and amplifier connection type;

[0023] Bipolar amplifier connection type;

[0024] The first capability information further includes any one of the following or a combination thereof:

[0025] the number of antennas in the backscatter device;

[0026] The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device;

[0027] the maximum energy storage capacity of the backscatter device;

[0028] The modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability;

[0029] The operating bandwidth of the backscatter device;

[0030] The impedance quantity of the backscatter device.

[0031] In a sixth aspect, a capability reporting method is provided, the method comprising:

[0032] The first communication device receives basic capability information and request information reported by the backscatter device; the indication information includes any one of the following or a combination thereof:

[0033] Antenna combination information;

[0034] Antenna and amplifier connection type;

[0035] Bipolar amplifier connection type;

[0036] The first communication device determines the antenna switching transmission mode of the backscatter device according to the basic capability information and the request information.

[0037] The first communication device sends instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0038] In a seventh aspect, a backscatter device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0039] In an eighth aspect, a backscatter device is provided, comprising a processor and a communication interface, wherein the communication interface is used to report first capability information to a first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0040] In a ninth aspect, a first communication device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0041] In the tenth aspect, a first communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier, and the processor is used to determine the antenna switching transmission mode of the backscatter device based on the first capability information; the communication interface is also used to send indication information to the backscatter device; wherein the indication information is used to indicate the antenna switching transmission mode.

[0042] In the eleventh aspect, a capability reporting system is provided, comprising: a backscattering device and a first communication device, wherein the backscattering device can be used to execute the steps of the capability reporting method as described in the first aspect, and the first communication device can be used to execute the steps of the capability reporting method as described in the third aspect.

[0043] In the twelfth 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 third aspect are implemented.

[0044] In the thirteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect, or to implement the method described in the third aspect.

[0045] In the fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the capability reporting method as described in the first aspect; or, to implement the steps of the capability reporting method as described in the third aspect.

[0046] In an embodiment of the present application, the backscatter device reports first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier, so that the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A block diagram of a wireless communication system applicable to embodiments of the present application is shown;

[0048] Figure 2 A schematic diagram of a single-base BSC architecture provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram of a dual-base BSC architecture provided in an embodiment of the present application;

[0050] Figure 4 A schematic diagram of the structure of a BSC device in the form of a tag provided in an embodiment of the present application;

[0051] Figure 5 A schematic diagram of the structure of an architecture 1 provided in an embodiment of the present application;

[0052] Figure 6 A schematic diagram of the structure of an architecture 2 provided in an embodiment of the present application;

[0053] Figure 7 A schematic diagram of the structure of an architecture 3-1a provided in an embodiment of the present application;

[0054] Figure 8 A schematic diagram of the structure of an architecture 3-1b provided in an embodiment of the present application;

[0055] Figure 9 A schematic diagram of the structure of an architecture 3-2a provided in an embodiment of the present application;

[0056] Figure 10 A schematic diagram of the structure of an architecture 3-2b provided in an embodiment of the present application;

[0057] Figure 11 A schematic diagram of the structure of an architecture 3-3a provided in an embodiment of the present application;

[0058] Figure 12 A schematic diagram of the structure of an architecture 3-3b provided in an embodiment of the present application;

[0059] Figure 13 A schematic diagram of a volt-ampere characteristic curve of a tunnel diode provided in an embodiment of the present application when used as an amplifier for a BSC device;

[0060] Figure 14 One of the schematic diagrams of an antenna architecture provided in an embodiment of the present application;

[0061] Figure 15 A second schematic diagram of an antenna architecture provided in an embodiment of the present application;

[0062] Figure 16 A third schematic diagram of an antenna architecture provided in an embodiment of the present application;

[0063] Figure 17 This is a flow chart of a capability reporting method provided in an embodiment of the present application;

[0064] Figure 18 One of the structural schematic diagrams of a backscattering device with a single antenna provided in an embodiment of the present application;

[0065] Figure 19 A second structural diagram of a backscattering device with a single antenna provided in an embodiment of the present application;

[0066] Figure 20 One of the structural schematic diagrams of a backscattering device with multiple antennas provided in an embodiment of the present application;

[0067] Figure 21 A second structural diagram of a backscattering device with multiple antennas provided in an embodiment of the present application;

[0068] Figure 22 A schematic diagram of interaction of capability information provided in an embodiment of the present application;

[0069] Figure 23 One of the schematic diagrams of a method for determining an antenna switching transmission mode of a backscatter device provided in an embodiment of the present application;

[0070] Figure 24 A second schematic diagram of a method for determining an antenna switching transmission mode of a backscatter device provided in an embodiment of the present application;

[0071] Figure 25 Schematic diagram of a method for determining an antenna switching transmission mode of a backscatter device provided in an embodiment of the present application;

[0072] Figure 26 The third structural diagram of a backscattering device with multiple antennas provided in an embodiment of the present application;

[0073] Figure 27 A second flowchart of another capability reporting method provided in an embodiment of the present application;

[0074] Figure 28 This is one of the structural diagrams of the capability reporting device provided in an embodiment of the present application;

[0075] Figure 29 The second structural diagram of the capability reporting device provided in an embodiment of the present application;

[0076] Figure 30 A schematic diagram of the structure of a first communication device provided in an embodiment of the present application;

[0077] Figure 31 A schematic diagram of the structure of a backscattering device provided in an embodiment of the present application;

[0078] Figure 32 A schematic structural diagram of the first communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0079] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0080] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to indicate a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0081] 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) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0082] Figure 1FIG. 1 is a block diagram of a wireless communication system applicable to embodiments of the present application. The wireless communication system includes a backscatter device 11 and a network-side device 12 . The backscatter device 11 may be a mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer) or notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM or self-service machine, etc., and 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. It should be noted that the specific type of the backscatter device 11 is not limited in the embodiments of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit. The access network device 12 may include a base station, a WLAN access point, or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting and receiving 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 embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0083] The technical solution provided in the embodiment of the present application can be used in backscatter (BSC) communication scenarios. Generally, there are two common architectures of backscatter communication systems: a single-base BSC architecture and a dual-base BSC architecture. For example, see Figure 2 and Figure 3 As shown, Figure 2 A schematic diagram of a single-base BSC architecture provided in an embodiment of the present application, combined with Figure 2 As shown in the figure, in the single-base BSC architecture, the downlink signal transmitter and the uplink signal receiver are the same device, namely Figure 2 The BSC receiving end in Figure 2 In the single-base BSC architecture shown, the BSC receiver acts as both the RF source and the transmitter of downlink data to the BSC device, as well as the receiver of uplink data. This deployment architecture, in which the BSC receiver communicates directly with the BSC device, places high demands on the receiver sensitivity of both the base station and the BSC device, but simplifies the architecture. The BSC device modulates the information to be transmitted onto the carrier signaled by other devices via the BSC mode for transmission.

[0084] Figure 3 A schematic diagram of a dual-base BSC architecture provided in an embodiment of the present application, combined with Figure 3 As shown in the figure, in the dual-base BSC architecture, the downlink signal transmitter and the uplink signal receiver are different devices. The downlink signal transmitter is Figure 3 The BSC transmitting end in the uplink is the BSC receiving end. Figure 3 In the dual-base BSC architecture shown, the BSC transmission end is both the RF source and the downlink data sending end of the BSC device, but the uplink data receiving end of the BSC device is the BSC receiving end. It is understandable that there are many different variations of the dual-base BSC architecture. The embodiment of this application only uses Figure 3 The architecture shown is used as an example for illustration, but does not mean that the embodiments of the present application are limited to this.

[0085] In the above-mentioned single-base BSC architecture and dual-base BSC architecture, the BSC device refers to the device that modulates the information to be sent onto the signal source carrier through the BSC method for transmission. It can be understood that in addition to the above-mentioned two architectures, various derivative architectures are also included, such as Figure 3 In the illustrated dual-base BSC architecture, the excitation source may be a base station or a user equipment (UE).

[0086] Tag is one of the forms of BSC equipment. Its structure can be found in Figure 4 As shown, Figure 4A schematic diagram of the structure of a BSC device in the form of a tag provided in an embodiment of the present application, combined with Figure 4 It can be seen that the BSC device mainly utilizes the radio frequency signals in the environment, such as cellular signals, TV broadcast signals or WiFi signals, collects their energy, and loads the information to be sent into the radio frequency signals in the environment and sends it to the BSC receiver to realize communication between the passive BSC device and the BSC receiver.

[0087] For example, based on their functional approach, BSC devices can be categorized as passive, semi-passive, and active. Passive BSC devices utilize an energy harvesting module to harvest energy from ambient RF signals and store it in capacitors to power the BSC's MCU, modulation and coding modules, resulting in low power consumption. Semi-passive BSC devices utilize either an RF energy harvesting module or an internal battery to power the MCU, modulation and coding modules, consuming approximately hundreds of microwatts of power. Active BSC devices utilize batteries to power the MCU, modulation and coding modules, resulting in a relatively complex hardware structure and power consumption in the milliwatt range. For example, passive BSC devices consist of several key components: an RF energy harvester, a switch, a modulation module, and an information decoder. The BSC receives RF signals from ambient sources and harvests energy from them. This energy is stored in the energy harvester to power the BSC's signal processing and transmission hardware modules. The received RF signal is then modulated and transmitted via a transmitting antenna to the BSC's receiving end. Therefore, traditional BSC equipment mainly includes an energy collection module / functional module, a microcontroller unit (MCU), a signal receiving module and an encoding / modulation module, a memory or a sensor module.

[0088] In actual operation, in order to send the information bits stored in the memory to the BSC receiver, the BSC equipment needs to control the switching load impedance or use the transmission line to change the amplitude and phase of the backscattered signal to modulate the received RF source signal and transmit it to the BSC receiver through the transmitting antenna; correspondingly, the BSC receiver receives and decodes the backscattered signal.

[0089] Define the reflection coefficient as Γ, assuming that the impedance of each antenna of the BSC device is Z A , the i-th load impedance is Z i , we can get:

[0090]

[0091]

[0092] Among them, θ A represents the phase of the antenna, θ i Represents the phase of the i-th load impedance. Assuming that the BSC equipment has M antennas (M≥2) and N load impedances, where the antenna impedance of each antenna is equal, then the i-th load impedance Z i The corresponding reflection coefficient Γ i is defined as follows:

[0093]

[0094]

[0095]

[0096] Combining the above formulas 4 and 5, it can be seen that the amplitude and phase of the reflection coefficient are closely related to the selection of the load impedance, and the amplitude and phase of the load impedance affect the amplitude and phase of the reflection coefficient.

[0097] Furthermore, transmission line loss affects the spacing of constellation points. Greater loss results in the points clustering closer together in the constellation diagram, leading to higher bit error rates. Furthermore, the length of the transmission line affects the signal phase. Therefore, in addition to changing the phase of the reflection coefficient by switching the load impedance, the phase of the reflection coefficient can also be altered by the transmission line. This can be adjusted based on actual needs.

[0098] Based on the above description, taking the cellular network environment in which the BSC device is located as an example, in the cellular network, based on the differences in radio frequency (RF) sources, uplinks, and downlinks, the backscatter communication system may include the following at least 8 different architectures. For example, the 8 different architectures may be respectively recorded as Architecture 1, Architecture 2, 3-1a, Architecture 3-1b, Architecture 3-2a, Architecture 3-2b, Architecture 3-3a, and Architecture 3-3b.

[0099] Among them, in architecture 1, for example, see Figure 5 As shown, Figure 5 A schematic diagram of the structure of an architecture 1 provided in an embodiment of the present application is provided. Figure 5 In the backscatter communication system shown, the base station is the radio frequency source, the downlink transmitter of the BSC device, and the uplink receiver of the BSC device. The downlink transmitter is the control command transmitter, and the uplink receiver is the BSC receiver. Figure 5 In the backscatter communication system shown, the base station can communicate directly with the BSC device. Although the communication process requires high receiving sensitivity of the base station and the BSC device, the deployment of the backscatter communication system is simple.

[0100] In Architecture 2, for example, see Figure 6 As shown, Figure 6 A schematic diagram of a structure 2 provided in an embodiment of the present application, in Figure 6 In the backscatter communication system shown in the figure, the base station is also a radio frequency source, but different from the above Figure 5 Unlike the backscatter communication system shown, Figure 6 The backscatter communication system shown includes a relay for relaying the uplink from the BSC device to the base station. Of course, the relay can also be used to relay the downlink from the base station to the BSC device, and the specific configuration can be based on actual needs.

[0101] In Architecture 3, the UE acts as a radio frequency source, forwarding downlink and uplink data from the BSC device to the base station. For example, in an embodiment of the present application, Architecture 3 may include Architecture 3-1a, Architecture 3-1b, Architecture 3-2a, Architecture 3-2b, Architecture 3-3a, and Architecture 3-3b.

[0102] In Architecture 3-1a, for example, see Figure 7 As shown, Figure 7 A schematic diagram of the structure of an architecture 3-1a provided in an embodiment of the present application is shown in FIG. Figure 7 In the backscatter communication system shown, the base station acts as a radio frequency source. In the downlink, the base station directly transmits downlink data to the BSC device; in the uplink, the BSC device first sends a backscatter signal to the UE, which then forwards it to the base station.

[0103] In Architecture 3-1b, for example, see Figure 8 As shown, Figure 8 A schematic diagram of the structure of an architecture 3-1b provided in an embodiment of the present application is shown in FIG. Figure 8 In the backscatter communication system shown, the UE acts as a radio frequency source. In the downlink, the base station directly transmits downlink data to the BSC device; in the uplink, the BSC device first sends a backscatter signal to the UE, which is then forwarded to the base station.

[0104] In Architecture 3-2a, for example, see Figure 9 As shown, Figure 9 A schematic diagram of the structure of an architecture 3-2a provided in an embodiment of the present application is provided. Figure 9 In the backscatter communication system shown, the base station acts as a radio frequency source. In the downlink, the base station first sends downlink data to the UE, which then forwards it to the BSC device; in the uplink, the BSC device directly sends backscatter signals to the base station.

[0105] In Architecture 3-2b, for example, see Figure 10 As shown, Figure 10 A schematic diagram of the structure of an architecture 3-2b provided in an embodiment of the present application is shown in FIG. Figure 10 In the backscatter communication system shown, the UE acts as a radio frequency source. In the downlink, the base station first sends downlink data to the UE, which then forwards it to the BSC device; in the uplink, the BSC device directly sends backscatter signals to the base station.

[0106] In Architecture 3-3a, for example, see Figure 11 As shown, Figure 11 A schematic diagram of the structure of an architecture 3-3a provided in an embodiment of the present application is shown in FIG. Figure 11 In the backscatter communication system shown, the base station acts as a radio frequency source. In the downlink, the base station first sends downlink data to the UE, which is then forwarded to the BSC device; in the uplink, the BSC device sends a backscatter signal to the UE, which is then forwarded to the base station.

[0107] In Architecture 3-3b, for example, see Figure 12 As shown, Figure 12 A schematic diagram of the structure of an architecture 3-3b provided in an embodiment of the present application is shown in FIG. Figure 12 In the backscatter communication system shown, the UE acts as a radio frequency source. In the downlink, the base station first sends downlink data to the UE, which is then forwarded to the BSC device; in the uplink, the BSC device sends a backscatter signal to the UE, which is then forwarded to the base station.

[0108] In combination with the above description, in the above cellular network, the backscatter communication system includes 8 different architectures as shown in the following Table 1:

[0109] Table 1

[0110] Architecture Downlink Uplink RF source provider Architecture 1 Base station -> BSC equipment BSC equipment -> base station base station Architecture 2 Base station -> BSC equipment BSC equipment -> relay -> base station base station Architecture 3-1a Base station -> BSC equipment BSC equipment -> UE -> base station base station Architecture 3-1b Base station -> BSC equipment BSC equipment -> UE -> base station UE Architecture 3-2a Base station -> UE -> BSC equipment BSC equipment -> base station base station Architecture 3-2b Base station -> UE -> BSC equipment BSC equipment -> base station UE Architecture 3-3a Base station -> UE -> BSC equipment BSC equipment -> UE -> base station base station Architecture 3-3b Base station -> UE -> BSC equipment BSC equipment -> UE -> base station UE

[0111] Based on the above description, for any backscatter communication system described in the architecture, given the limited hardware capabilities of BSC devices, their transmit power is tens or even hundreds of times lower than that of traditional terminals. This difference limits the BSC's communication range. To extend the BSC's communication range, low-power amplifiers can be integrated into the BSC to extend its range. Related literature indicates that integrating tunnel diodes into a BSC can increase its communication range by four times.

[0112] For example, amplifiers integrated into BSC equipment can generally be classified as tunnel diodes or complementary metal oxide semiconductor (CMOS) diodes. If the amplifier is used to amplify downlink carrier signals, it can be called a transmission amplifier; if the amplifier is used to amplify uplink BSC signals, it can be called a reflection amplifier; if the BSC equipment integrates both a transmission amplifier and a reflection amplifier, it can be called a bidirectional amplifier. It is understood that regardless of the type of amplifier integrated into the BSC equipment, the DC bias module / signal control module must be controlled by the MCU to convert the DC bias power into RF power and enable the amplifier to operate in the negative impedance region of the power amplifier equivalent impedance.

[0113] Assume that at a fixed signal frequency fin, the bias voltage is Vbias, and the input power of the RF signal is Pin, the impedance of the antenna is Z a ()f i = n (R)+ a f( i ), the equivalent impedance of the amplifier is Z L (f in ,V bias ,P in )=-R L +jX L ,R L >0, the conclusion can be drawn from the following formula:

[0114]

[0115]

[0116] As shown in the above formula 3, the absolute value of the reflection coefficient in formula 3 is always less than 1, while the absolute value of the reflection coefficient in formula 6 and formula 7 is always greater than 1. It should be noted that the main difference between formula 6 and formula 7 is whether the impedance of the antenna matches the impedance of the amplifier. When the impedance of the antenna matches the impedance of the amplifier, X is satisfied. a (f in )+X a (f i,n V bi,as P) in =0, corresponding to Formula 6; when the impedance of the antenna does not match the impedance of the amplifier, it corresponds to Formula 7.

[0117] In combination with the above description, tunnel diodes or CMOS transistors can be integrated into BSC devices as amplifiers of the BSC devices to extend the communication range of the BSC devices. When tunnel diodes are used as amplifiers of BSC devices, generally good gain performance can be achieved with power consumption of tens to hundreds of microwatts; when CMOS transistors are used as amplifiers of BSC devices, generally good gain performance can be achieved with power consumption of hundreds of microwatts. For example, see Figure 13 As shown, Figure 13 A schematic diagram of the volt-ampere characteristic curve of a tunnel diode provided in an embodiment of the present application when used as a BSC device amplifier, combined with Figure 13 It can be seen that the stability of the tunnel diode is poor. In addition, the cost of the tunnel diode is high, and using it as an amplifier of the BSC equipment will increase the cost of the BSC equipment.

[0118] In addition to focusing on the stability, power consumption, and gain of the amplifiers mentioned above, it is also necessary to pay attention to the efficiency of the amplifier. Efficiency is related to power consumption and can be expressed by the following formula 8:

[0119]

[0120] Among them, η and PAE both represent the efficiency of the amplifier, P out Represents the output power of the amplifier, P in Represents the input power of the amplifier, P DC represents the DC bias power. Next, two conclusions are given for general amplifiers. One of them is: out When the output power is low, for example, below 15dBm, PAE < 10%, which means that the P out 90% of the power supplied is consumed; another conclusion is: the higher the frequency of the RF signal, the smaller the PAE. When the frequency of the RF signal increases from 414MHz to 829MHz, the PAE drops from 35% to 3.5%.

[0121] In conjunction with the above description, integrating an amplifier into a BSC device allows the BSC device's communication range to be extended. In a backscatter communication scenario, before the BSC device with an integrated amplifier performs signal processing and transmission operations, the first communication device typically configures the BSC device's antenna switching transmission mode, so that the BSC device performs corresponding signal processing and transmission operations based on the configured antenna switching transmission mode. Therefore, how to accurately configure the BSC device's antenna switching transmission mode is a technical problem that needs to be solved by those skilled in the art.

[0122] For example, the first communication device may include a mobile phone terminal, a network side device, such as a base station or other network access device.

[0123] In order to accurately configure the antenna switching transmission mode of the BSC equipment, considering that the fifth generation 5G (5th Generation) mobile communication system supports the sounding reference signal (SRS) according to 1T2R, 2T4R, 1T4R, 1T4R / 2T4R antenna switching transmission and transmission antenna T = receiving antenna R transmission, it can assist the base station in obtaining all downlink channel information of the UE. The configuration of UE antenna switching transmission is related to the UE capability, and can be implemented by configuring the sounding reference signal (SRS) transmission through high-level signaling. Taking 4 antennas as an example, in the NR system, the possible antenna architecture includes multiple cases, as described below:

[0124] For example, in one case, the antenna architecture includes: a power amplifier connected to two antenna elements, and another power amplifier connected to another two antenna elements. For example, see Figure 14 As shown, Figure 14 This is one of the schematic diagrams of an antenna architecture provided in an embodiment of the present application, wherein a power amplifier 1 is connected to antenna 1 and antenna 2, and another power amplifier 2 is connected to antenna 3 and antenna 4.

[0125] In another embodiment, the antenna structure includes: a power amplifier connected to four antenna elements, and another power amplifier connected to four antenna elements. Figure 15 As shown, Figure 15 This is a second schematic diagram of an antenna architecture provided in an embodiment of the present application, wherein a power amplifier 1 is connected to antenna 1, antenna 2, antenna 3 and antenna 4, and another power amplifier 2 is also connected to antenna 1, antenna 2, antenna 3 and antenna 4.

[0126] In another embodiment, the antenna architecture includes: a power amplifier connected to two antenna elements, and another power amplifier connected to four antenna elements. Figure 16 As shown, Figure 16 This is a third schematic diagram of an antenna architecture provided in an embodiment of the present application, wherein a power amplifier 1 is connected to antenna 1, antenna 2, antenna 3 and antenna 4, and another power amplifier 2 is also connected to antenna 3 and antenna 4.

[0127] During signal transmission, when the UE's battery power is low or insufficient, the first communications device can schedule the UE's antenna switching transmission mode, controlling the UE to shut down some transmit antennas or receive antennas to save power. For example, when the first communications device schedules the UE's antenna switching transmission mode, the network can proactively initiate the scheduling operation for the UE, or the UE can be allowed to report assistance information to the first communications device. This assistance information can help the first communications device better understand the UE's actual situation, thereby more accurately scheduling the UE and helping the UE save power.

[0128] Based on the above technical concept, in an embodiment of the present application, in order to accurately configure the antenna switching transmission mode of the BSC device, the embodiment of the present application provides a capability reporting method, and the BSC device can report first capability information to the first communication device; the first capability information includes the switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes the relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier, so that the first communication device can accurately configure the antenna switching transmission mode of the BSC device according to the first capability information reported by the BSC device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0129] It can be understood that the capability reporting method provided in the embodiment of the present application is applicable to a single-base backscatter communication system and a dual-base backscatter communication system, and of course, is also applicable to a radio frequency identification (RFID) system and an NR system. It can be specifically configured according to actual needs. Here, the embodiment of the present application is only described as applicable to these systems, but it does not mean that the embodiment of the present application is limited to this. Furthermore, the capability reporting method provided in the embodiment of the present application can be applicable to, but not limited to, a digital and energy simultaneous transmission architecture in a single-base backscatter communication system and a dual-base backscatter communication system. When the capability reporting method provided in the embodiment of the present application is applied to a digital and energy simultaneous transmission architecture, it can effectively improve communication efficiency.

[0130] The capability reporting method provided in the embodiment of the present application is described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0131] Figure 17 This is one of the flow charts of a capability reporting method provided in an embodiment of the present application. For example, see Figure 17 As shown, the capability reporting method may include:

[0132] S1701. A backscatter device reports first capability information to a first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device.

[0133] The switch capability information includes the modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of amplifier. It will be appreciated that when the backscatter device includes an amplifier, the amplifier can be used to enhance coverage and energy efficiency, effectively extending communication range.

[0134] For example, in an embodiment of the present application, the first communication device may be a base station, a mobile phone terminal or other network access device, and may be specifically configured according to actual needs.

[0135] For example, the switch-connected modules include at least two of the following: an amplifier module; a modulation and coding module; an energy storage module; and a wake-up module. The modulation and coding module is primarily used to modulate the BSC's to-be-transmitted bit data onto a carrier wave or perform channel coding. The energy storage module is primarily used to convert the incident carrier signal into a DC signal through a rectifier for energy storage and to power the MCU, modulation and coding module, and amplifier module. The wake-up module is primarily used to detect pilot sequences for data symbol synchronization and wake up the MCU, thereby saving energy.

[0136] For example, in an embodiment of the present application, in addition to including the relevant modules connected to the switch, the switch capability information may also include whether the switch is connected to an antenna, the number of ports of the switch, or any combination thereof. This can be specifically configured according to actual needs. Here, the embodiment of the present application is only described by taking the example that the switch capability information also includes whether the switch is connected to an antenna, the number of ports of the switch, or any combination thereof, but it does not mean that the embodiment of the present application is limited to this. Among them, whether the switch is connected to an antenna can also be expressed as whether each antenna is connected to a switch. The number of ports of the switch refers to the number of ports included in the switch.

[0137] For example, in an embodiment of the present application, the switch capability information further includes any one of the following or a combination thereof: the operating frequency of the switch, the isolation of the switch, the insertion loss of the switch, the return loss of the switch, the switching speed of the switch, and the power handling capability of the switch.

[0138] For example, the type of amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier, and can be specifically set according to actual needs. Here, the embodiment of the present application is only illustrated by taking the type of amplifier including any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier as an example, but it does not mean that the embodiment of the present application is limited to this.

[0139] For example, in an embodiment of the present application, the amplifier capability information also includes any one of the following or a combination thereof: the efficiency of the amplifier, the insertion loss of the amplifier, the amplification factor of the amplifier, and the power consumption of the amplifier. The specific configuration can be based on actual needs. Here, the embodiment of the present application only uses the example that the amplifier capability information also includes any one of the following or a combination thereof: the efficiency of the amplifier, the insertion loss of the amplifier, the amplification factor of the amplifier, and the power consumption of the amplifier, but does not mean that the embodiment of the present application is limited to this.

[0140] For example, in the embodiment of the present application, the first capability information reported by the backscatter device to the first communication device may include any one of the following or a combination thereof, in addition to the switch capability information and / or amplifier capability information of the backscatter device:

[0141] The number of antennas in the backscatter device; the functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device; the maximum energy storage capacity of the backscatter device; the modulation capability of the backscatter device; wherein the modulation capability includes any one of an amplitude modulation capability, a frequency modulation capability, or a phase modulation capability; the operating bandwidth of the backscatter device; the number of impedances of the backscatter device, which can be set according to actual needs.

[0142] For example, when the backscatter device reports the first capability information to the first communication device, multiple possible implementations may be included:

[0143] In a possible implementation, the backscatter device may be triggered by the first communication device to report its first capability information to the first communication device.

[0144] For example, the first communication device can send a capability reporting indication to the backscatter device to trigger the backscatter device to report its first capability information to the first communication device through the capability reporting indication; correspondingly, the backscatter device receives the capability reporting indication sent by the first communication device, and reports the first capability information to the first communication device according to the capability reporting indication, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0145] In another possible implementation, the backscatter device may proactively report its first capability information to the first communication device without being triggered by the first communication device.

[0146] For example, the backscatter device can periodically and proactively report first capability information to the first communication device, so that the first communication device can obtain the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device based on the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration. The reporting period can be set according to actual needs, and the embodiment of the present application does not specifically limit the value of the reporting period.

[0147] In another possible implementation, the backscatter device can report the first capability information to the first communication device during the network registration process, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0148] In another possible implementation, the backscatter device can report the first capability information to the first communication device during the application addition process, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0149] It can be understood that when the backscatter device reports the first capability information to the first communication device, the embodiments of the present application are only described by taking the above-mentioned several possible implementation methods as examples, but it does not mean that the embodiments of the present application are limited to this.

[0150] For example, when the first capability information includes switch capability information and amplifier capability information, the reporting manner of the switch capability information and the amplifier capability information includes separate reporting or joint reporting.

[0151] In one scenario, when the first capability information includes switch capability information and amplifier capability information, the backscatter device reports the switch capability information and amplifier capability information to the first communication device separately. This is generally applicable to situations where the switch is not connected to an amplifier. Assuming the backscatter device includes two antennas, a storage antenna (S) and a transmitting antenna (T), and the switch has three ports, the switch capability information includes: whether the switch is connected to an antenna, the relevant modules connected to the switch, and the number of ports on the switch. Of course, the switch capability information may also include any one or a combination of the switch's operating frequency, the switch's isolation, the switch's insertion loss, the switch's return loss, the switch's switching speed, or the switch's power handling capability. Here, the embodiments of the present application illustrate the switch capability information as including: whether the switch is connected to an antenna, the relevant modules connected to the switch, and the switch's ports. Assume that the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier. Of course, the amplifier capability information may also include any one of the amplifier efficiency, the amplifier insertion loss, the amplifier amplification factor, or the amplifier power consumption, or a combination thereof. Here, the embodiment of the present application only uses the amplifier capability information indicating at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier as an example for explanation. Then, when the switch capability information and the amplifier capability information are reported to the first communication device in a separate reporting manner, whether the switch is connected to an antenna included in the switch capability information can be carried by the first signaling, and by reporting the first signaling, the relevant modules connected to the switch, and the number of ports of the switch to the first communication device, the switch capability information including whether the switch is connected to an antenna, the relevant modules connected to the switch, and the number of ports of the switch can be reported to the first communication device. For example, the possible combinations of the first signaling can be seen in Table 2 below:

[0152] Table 2

[0153] First signaling Is the antenna connected to a switch? 00 None 01 The first antenna has it, but the second antenna doesn't. 10 The first antenna does not have it, but the second antenna does. 11 Both

[0154] As can be seen from Table 2, when the first signaling is 00, it means that neither antenna is connected to a switch; when the first signaling is 01, it means that the first antenna is connected to a switch and the second antenna is not connected to a switch; when the first signaling is 10, it means that the first antenna is not connected to a switch and the second antenna is connected to a switch; and when the first signaling is 11, it means that both antennas are connected to switches.

[0155] In conjunction with the above description, assuming that the amplifier capability information also indicates whether the backscatter device includes an amplifier and the type of amplifier, the amplifier capability information can be carried via the second signaling. By reporting the second signaling to the first communication device, the amplifier capability information including whether the backscatter device includes an amplifier and the type of amplifier can be reported to the first communication device. For example, possible combinations of the second signaling can be shown in Table 3 below:

[0156] Table 3

[0157] Second signaling Amplifier type 00 No integrated amplifier 01 Downlink Transmission Amplifier 10 Uplink transmission amplifier 11 Bipolar amplifier

[0158] It can be seen from Table 3 that when the second signaling is 00, it means that the backscatter device does not include an amplifier; when the second signaling is 01, it means that the backscatter device includes an amplifier, and the type of the amplifier is a downlink transmission amplifier; when the second signaling is 10, it means that the backscatter device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier; when the second signaling is 11, it means that the backscatter device includes an amplifier, and the type of the amplifier is a bipolar amplifier.

[0159] For example, in an embodiment of the present application, when the reported amplifier capability information only includes whether an amplifier is included, whether the amplifier is included can be reported using one bit. If an amplifier is included, the type of the amplifier can be reported using two more bits.

[0160] In combination with the above description, when the first capability information includes switch capability information and amplifier capability information, the backscatter device reports the switch capability information and amplifier capability information to the first communication device in a separate reporting manner, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0161] In another scenario, when the first capability information includes switch capability information and amplifier capability information, the backscatter device reports the switch capability information and the amplifier capability information to the first communication device in a joint reporting manner. This is generally applicable to situations where the relevant modules connected to the switch include a combination of an amplifier module and other modules. In this way, the joint reporting method can effectively save reporting resources and simplify the reporting process. Assume that a backscatter device includes two antennas: an energy storage antenna (S) and a transmitting antenna (T); the switch has three ports and includes an amplifier module, a modulation module, an energy storage module, a wake-up module, and the like; and assume that the switch capability information includes: whether the switch is connected to an antenna, the relevant modules connected to the switch, and the number of ports on the switch; the amplifier capability information also indicates whether the backscatter device includes an amplifier and the type of amplifier. When the switch capability information and amplifier capability information are jointly reported to a first communication device, the switch capability information (including information on whether the switch is connected to an antenna and the relevant modules connected to the switch, as well as information on whether the backscatter device includes an amplifier and the type of amplifier, as included in the amplifier capability information) can be carried via a third signaling message. By reporting the third signaling message and the number of ports on the switch to the first communication device, the first capability information including the switch capability information and the amplifier capability information can be reported to the first communication device. It is not difficult to understand that, based on the relevant modules connected to the switch, it is possible to determine whether the backscatter device in the amplifier capability information includes an amplifier. Therefore, the third signaling message also includes the type of amplifier. If the amplifier capability information can also be reported together with the amplifier module in the switch capability information, then there is no need to report the amplifier capability information separately. For example, the possible combinations of the third signaling can be seen in the following Table 4:

[0162] Table 4

[0163] The third signaling First capability information 0000 The first antenna is connected to the switch, uplink transmission amplifier, amplifier + modulation module 0001 The first antenna is connected to the switch, uplink transmission amplifier, amplifier + energy storage module 0010 The first antenna is connected to the switch, downlink transmission amplifier, amplifier + modulation module 0011 The first antenna is connected to the switch, downlink transmission amplifier, amplifier + energy storage module 0100 The first antenna is connected to the switch, bipolar amplifier, amplifier + modulation module 0101 The first antenna is connected to the switch, bipolar amplifier, amplifier + energy storage module 0110 The second antenna is connected to the switch, uplink transmission amplifier, amplifier + modulation module 0111 The second antenna is connected to the switch, uplink transmission amplifier, amplifier + energy storage module 1000 The second antenna is connected to the switch, downlink transmission amplifier, amplifier + modulation module 1001 The second antenna is connected to the switch, downlink transmission amplifier, amplifier + energy storage module 1010 The second antenna is connected to the switch, bipolar amplifier, amplifier + modulation module 1011 The second antenna is connected to the switch, bipolar amplifier, amplifier + energy storage module 1100 … 1101 … 1110 … 1111 …

[0164] Combined with Table 4, it can be seen that when the third signaling is 0000, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier; when the third signaling is 0001, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier; when the third signaling is 0010, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier. The type is a downlink transmission amplifier; when the third signaling is 0011, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is a downlink transmission amplifier; when the third signaling is 0100, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is a bipolar amplifier; when the third signaling is 0101, it means that the first antenna is connected to a switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is The type is a bipolar amplifier; when the third signaling is 0110, it means that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier; when the third signaling is 0111, it means that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is an uplink transmission amplifier; when the third signaling is 1000, it means that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is a downlink transmission amplifier. transmission amplifier; when the third signaling is 1001, it indicates that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is a downlink transmission amplifier; when the third signaling is 1010, it indicates that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and a modulation module, the backscattering device includes an amplifier, and the type of the amplifier is a bipolar amplifier; when the third signaling is 1011, it indicates that the second antenna is connected to the switch, the related modules connected to the switch include an amplifier and an energy storage module, the backscattering device includes an amplifier, and the type of the amplifier is a bipolar amplifier.

[0165] For example, assuming that the backscatter device is a single antenna device with an integrated amplifier, for example, see Figure 18 As shown, Figure 18This is one of the structural diagrams of a backscatter device with a single antenna provided in an embodiment of the present application. The switch in the backscatter device is located in the modulation module, and the energy storage module is always connected to the antenna and is always in the energy supply mode. Therefore, for Figure 18 The backscatter device shown in the figure needs to report switch capability information including the number of switch ports and related modules connected to the switch, namely, the amplifier and modulation module. The amplifier capability information that needs to be reported indicates the amplifier type. For this situation, in the application embodiment, a joint reporting method can be adopted, that is, the switch capability information and the amplifier capability information are reported to the first communication device through a third instruction, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0166] For example, assuming that the backscatter device is a single-antenna device, the single antenna is connected to a 4-port switch and an integrated amplifier. For example, see Figure 19 As shown, Figure 19 The second structural diagram of a backscattering device with a single antenna provided in the embodiment of the present application is Figure 19 For the backscatter device shown, the switch capability information that needs to be reported includes the relevant modules connected to the switch, namely the amplifier, modulation module, and energy storage module. The amplifier capability information that needs to be reported indicates the amplifier type. For this situation, in the application embodiment, a joint reporting method can be adopted, that is, the switch capability information and amplifier capability information are reported to the first communication device through a third instruction, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device based on the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration. For example, the possible combinations of the third signaling can be seen in Table 5 below:

[0167] Table 5

[0168] The third signaling First capability information 00 Amplifier + modulation module + energy storage module, uplink transmission amplifier 01 Amplifier + modulation module + energy storage module, downlink transmission amplifier 10 Amplifier + modulation module + energy storage module, bipolar amplifier

[0169] From Table 5, it can be seen that when the third signaling is 00, it indicates that the related modules connected to the switch include an amplifier, a modulation module, and an energy storage module, and the type of the amplifier is an uplink transmission amplifier; when the third signaling is 01, it indicates that the related modules connected to the switch include an amplifier, a modulation module, and an energy storage module, and the type of the amplifier is a downlink transmission amplifier; when the third signaling is 10, it indicates that the related modules connected to the switch include an amplifier, a modulation module, and an energy storage module, and the type of the amplifier is a bipolar transmission amplifier.

[0170] above Figure 18 and Figure 19 The backscatter device shown is a backscatter device with a single antenna. For backscatter devices with multiple antennas, a joint reporting method can also be used, that is, the switch capability information and the amplifier capability information are reported to the first communication device through the third instruction. For example, assuming that the backscatter device is a multi-antenna device with two antennas and only one switch with 4 switch ports and an integrated amplifier, for example, see Figure 20 As shown, Figure 20 This is one of the structural diagrams of a backscattering device with multiple antennas provided in an embodiment of the present application. Figure 20 For the backscatter devices shown in 20-a and 20-b, the switch capability information that needs to be reported includes the modules related to the switch connection, namely, the amplifier, modulation module and energy storage module. The amplifier capability information that needs to be reported indicates the amplifier type, namely, a bipolar amplifier. For this situation, in the application embodiment, a joint reporting method can be adopted, namely, the switch capability information and the amplifier capability information are reported to the first communication device through the third instruction, so that the first communication device can obtain the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration. Similarly, see Figure 21 As shown, Figure 21 The second structural diagram of a backscattering device with multiple antennas provided in the embodiment of the present application is Figure 21 For the backscatter devices shown in 21-a and 21-b, both antennas are connected to the switch, which is suitable for the precoding or space-time coding transmission mechanism. For this situation, in the application embodiment, a joint reporting method can also be adopted, that is, the switch capability information and the amplifier capability information are reported to the first communication device through the third instruction, so that the first communication device obtains the first capability information of the backscatter device. In this way, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0171] It can be seen that in the embodiment of the present application, the backscatter device reports the first capability information to the first communication device; the first capability information includes the switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes the relevant modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier. Accordingly, after obtaining the first capability information of the backscatter device, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0172] Based on the above Figure 17 In the embodiment shown, the backscatter device reports first capability information including switch capability information and / or amplifier capability information of the backscatter device to the first communication device; correspondingly, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device based on the first capability information reported by the backscatter device. For example, see Figure 22 As shown, Figure 22 A schematic diagram of interaction of capability information provided in an embodiment of the present application may include:

[0173] S2201. The backscatter device reports first capability information to the first communication device; wherein the first capability information includes switch capability information and / or amplifier capability information of the backscatter device.

[0174] It should be noted that, in S2201, the relevant description of the backscatter device reporting the first capability information to the first communication device can be found in the above S1701, and the relevant description of the backscatter device reporting the first capability information to the first communication device is not repeated here in the embodiment of the present application.

[0175] After receiving the first capability information reported by the backscatter device, the first communication device may determine the antenna switching transmission mode of the backscatter device according to the first capability information, that is, execute the following S2202:

[0176] S2202: The first communication device determines an antenna switching transmission mode of the backscatter device according to the first capability information.

[0177] For example, when the first communication device determines the antenna switching transmission mode of the backscatter device, at least two possible implementation modes may be included:

[0178] In a possible implementation, the first communication device may determine the antenna switching transmission mode of the backscatter device based only on the first capability information.

[0179] In another possible implementation, when the backscatter device sends request information to the first communication device in addition to reporting the first capability information to the first communication device, the first communication device can correspondingly jointly determine the antenna switching transmission mode of the backscatter device based on the first capability information and the request information.

[0180] The request information includes any one or a combination of power-saving information, low-battery information, or multi-antenna transmission request information, which can be set according to actual needs. The power-saving information indicates whether the backscatter device needs to save power or is in power-saving mode; the low-battery information indicates whether the backscatter device needs to stop transmission or is in energy storage mode; and the multi-antenna transmission request indicates whether the backscatter device needs to adopt a multi-transmit antenna transmission scheme, such as space-time coding or precoding.

[0181] For example, in one case, when the backscatter device sends power saving information to the first communication device in addition to reporting the first capability information to the first communication device, for example, see Figure 23 As shown, Figure 23 One of the schematic diagrams of a method for determining the antenna switching transmission mode of a backscatter device provided in an embodiment of the present application. Correspondingly, after the first communication device receives the first capability information and the power-saving information, it can determine the antenna switching transmission mode of the backscatter device based on the first capability information and the power-saving information, and send indication information indicating the antenna switching transmission mode to the backscatter device. In this way, the antenna switching transmission mode of the backscatter device can be jointly determined by combining the first capability information and the power-saving information, which can effectively improve the configuration accuracy of the antenna switching transmission mode.

[0182] In another case, when the backscatter device sends insufficient power information to the first communication device in addition to reporting the first capability information to the first communication device, for example, see Figure 24 As shown, Figure 24 The second schematic diagram of a method for determining the antenna switching transmission mode of a backscatter device provided in an embodiment of the present application, correspondingly, after the first communication device receives the first capability information and the insufficient power information, it can determine the antenna switching transmission mode of the backscatter device based on the first capability information and the insufficient power information, and send indication information indicating the antenna switching transmission mode to the backscatter device. In this way, the antenna switching transmission mode of the backscatter device can be jointly determined by combining the first capability information and the insufficient power information, which can effectively improve the configuration accuracy of the antenna switching transmission mode.

[0183] In another case, when the backscatter device sends a transmission request information for multiple antennas to the first communication device in addition to reporting the first capability information to the first communication device, for example, see Figure 25 As shown, Figure 25 The third schematic diagram of a method for determining the antenna switching transmission mode of a backscatter device provided in an embodiment of the present application, correspondingly, after the first communication device receives the first capability information and the transmission request information for multiple antennas, it can determine the antenna switching transmission mode of the backscatter device based on the first capability information and the transmission request information for multiple antennas, and send indication information indicating the antenna switching transmission mode to the backscatter device. In this way, the antenna switching transmission mode of the backscatter device is jointly determined by combining the first capability information and the transmission request information for multiple antennas, which can effectively improve the configuration accuracy of the antenna switching transmission mode.

[0184] It should be noted that in the embodiments of the present application, there is also a possible scenario: in this scenario, the backscatter device does not report its switching capability information and amplifier capability information to the first communication device, but only reports basic capability information and request information. The basic capability information includes the number of antennas in the backscatter device, the functional type of the backscatter device, the maximum energy storage capacity of the backscatter device, the modulation capability of the backscatter device, the working bandwidth of the backscatter device, or any one or a combination of the number of impedances of the backscatter device. Correspondingly, the first communication device can also jointly determine the antenna switching transmission mode of the backscatter device based on the basic capability information and request information reported by the backscatter device to configure the antenna switching transmission mode of the backscatter device.

[0185] It can be understood that when determining the antenna switching transmission mode of the backscatter device, the embodiment of the present application only uses the above two possible implementation methods to determine the antenna switching transmission mode of the backscatter device as an example for illustration, but it does not mean that the embodiment of the present application is limited to this.

[0186] S2203. The first communication device sends instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0187] For example, the indication information includes any one or a combination of antenna combination information, antenna and amplifier connection type, and bipolar amplifier connection type, and can be specifically set according to actual needs. Here, the embodiment of the present application is only illustrated by taking the indication information including any one or a combination of antenna combination information, antenna and amplifier connection type, and bipolar amplifier connection type as an example, but it does not mean that the embodiment of the present application is limited to this.

[0188] For example, the antenna combination information is used to indicate different combinations of energy storage antennas and transmitting antennas. Both energy storage antennas and transmitting antennas can be used to receive signals. Different combinations include all antennas being used for energy storage, all antennas being used for signal transmission, or some of all antennas being used for energy storage and some of the antennas being used for signal transmission. The specific settings can be made according to actual needs.

[0189] For example, when the indication information includes antenna combination information, possible combinations thereof may be shown in Table 6 below:

[0190] Table 6

[0191] Instructions Antenna combination information 00 2S 01 1S1T 10 1T1S 11 2T

[0192] In combination with Table 6, it can be seen that when the indication information includes antenna combination information and the indication information is 00, the corresponding antenna combination information is 2S, and 2S represents two energy storage antenna combinations; when the antenna combination information is included and the indication information is 01, the corresponding antenna combination information is 1S1T, and 1S1T represents one energy storage antenna and one transmitting antenna combination; when the antenna combination information is included and the indication information is 10, the corresponding antenna combination information is 1T1S, and 1T1S represents one transmitting antenna and one energy storage antenna combination; when the antenna combination information is included and the indication information is 11, the corresponding antenna combination information is 2T, and 2T represents two transmitting antenna combinations.

[0193] It's worth noting that the receiving antenna is not defined here. This is because, in a backscatter device, both the energy storage antenna and the transmitting antenna must be able to store energy and transmit signals before they can receive a carrier signal from the environment. Similarly, if a backscatter device has three antennas, a 3-bit indication can be used to represent different antenna combinations. This can be configured based on actual needs.

[0194] For example, when the indication information includes the connection type of the antenna and the amplifier, possible combinations thereof may be shown in Table 7 below:

[0195] Table 7

[0196] Instructions Antenna and amplifier connection type 00 The amplifier is not connected to the antenna 01 Connect with T antenna 10 Connect with S antenna 11 Connect to both T antenna and S antenna

[0197] From Table 7, it can be seen that when the indication information includes the antenna-amplifier connection type and the indication information is 00, the corresponding antenna-amplifier connection type is that the amplifier is not connected to the antenna; when the indication information includes the antenna-amplifier connection type and the indication information is 01, the corresponding antenna-amplifier connection type is that the amplifier is connected to the T antenna; when the indication information includes the antenna-amplifier connection type and the indication information is 10, the corresponding antenna-amplifier connection type is connected to the S antenna; when the indication information includes the antenna-amplifier connection type and the indication information is 11, the corresponding antenna-amplifier connection type is connected to both the T antenna and the S antenna.

[0198] For example, in combination with the above Figure 20 As shown, if an amplifier is used in the backscatter device, the switch is switched to the second connection point; if the amplifier is not needed, the switch is switched to the first connection point; if there is no signal transmission, the switch can be switched to the third connection point. In this case, the indication information sent by the first communication device to the backscatter device may include antenna combination information and the antenna-amplifier connection type. The indication information used to indicate the antenna combination information can be 01 or 11, wherein the indication information 01 for indicating the antenna combination information corresponds to the antenna combination information 1S1T, and the antenna combination information 11 corresponds to 2T. The indication information used to indicate the antenna-amplifier connection type can be 00 or 01, wherein the indication information 00 for indicating the antenna-amplifier connection type corresponds to the amplifier not being connected to the antenna, and the indication information 01 for indicating the antenna-amplifier connection type corresponds to the T antenna.

[0199] For example, in combination with the above Figure 21 As shown, if the backscatter device requires dual-antenna transmission and uses an amplifier, the first switch on the left is switched to the right connection point, and the second switch is switched to the second connection point in the middle. In this case, the indication information sent by the first communication device to the backscatter device may include antenna combination information and the antenna-amplifier connection type. The indication information used to indicate the antenna combination information can be 00 or 11, wherein the indication information 00 for indicating the antenna combination information corresponds to the antenna combination information 2S, and the indication information 11 for indicating the antenna combination information corresponds to the antenna combination information 2T. The indication information used to indicate the antenna-amplifier connection type can be 00 or 11, wherein the indication information 00 for indicating the antenna combination information corresponds to the antenna-amplifier connection type not being connected to the antenna, and the indication information 11 for indicating the antenna-amplifier connection type being connected to both the T antenna and the S antenna.

[0200] It should be noted that for Figure 21In 21-b, since the bipolar amplifier can amplify both downlink carrier signals and uplink modulated signals, the indication information may further include, for example, a bipolar amplifier connection type. For example, when the indication information includes a bipolar amplifier connection type, possible combinations thereof may be shown in Table 8 below:

[0201] Table 8

[0202] Instructions Bipolar amplifier connection type 00 No connection to bipolar amplifier 01 Downlink Transmission Amplifier 10 Uplink transmission amplifier 11 Connecting a Bipolar Amplifier

[0203] From Table 7, it can be seen that when the indication information includes the bipolar amplifier connection type and the indication information is 00, the corresponding bipolar amplifier connection type is not connected to the bipolar amplifier; when the indication information includes the bipolar amplifier connection type and the indication information is 01, the corresponding bipolar amplifier connection type is a downlink transmission amplifier; when the indication information includes the bipolar amplifier connection type and the indication information is 10, the corresponding bipolar amplifier connection type is an uplink transmission amplifier; when the indication information includes the bipolar amplifier connection type and the indication information is 11, the corresponding bipolar amplifier connection type is connected to the bipolar amplifier.

[0204] For example, assume that a backscatter device includes two antennas, with the second antenna connected to a bipolar amplifier. In one scenario, when the request information sent by the backscatter device to the first communications device includes power-saving information, the power-saving information is used to request the backscatter device to save power or enter a power-saving mode. Accordingly, after obtaining the power-saving information, the first communications device can send instruction information to the backscatter device based on the first capability information and power-saving information reported by the backscatter device. For example, the instruction information sent may include antenna combination information 10 or 01, antenna-amplifier connection type 00, and bipolar amplifier connection type 00. Antenna combination information 10 or 01 indicates the use of a minimum number of transmitting antennas and an energy storage antenna to achieve power conservation. Antenna-amplifier connection type 00 and bipolar amplifier connection type 00 indicate the use of no amplifier, thus avoiding the power consumption introduced by the amplifier and achieving power conservation.

[0205] In another scenario, assuming the BSC device is passive, when the backscatter device sends a request message to the first communication device that includes low battery information, this low battery information requests that the backscatter device enter charging mode and not transmit data. Accordingly, upon receiving this low battery information, the first communication device can send an indication to the backscatter device based on the first capability information and low battery information reported by the backscatter device. For example, the indication can include antenna combination information (00), antenna-amplifier connection type, and bipolar amplifier connection type, which can determine whether to select an amplifier based on requirements. Antenna combination information of 00 indicates that both antennas are used as energy storage antennas, thereby not transmitting data and conserving power.

[0206] In another scenario, when the request information sent by the backscatter device to the first communication device includes transmission request information for multiple antennas, the transmission request information for multiple antennas is used to request that the backscatter device be in a multi-antenna operating mode, such as precoding or space-time coding. Accordingly, after receiving the transmission request information for multiple antennas, the first communication device can send indication information to the backscatter device based on the first capability information reported by the backscatter device and the transmission request information for multiple antennas. For example, the indication information sent can include antenna combination information 11, antenna-amplifier connection type, and bipolar amplifier connection type, which can determine whether to select an amplifier based on requirements. Antenna combination information 11 indicates that both antennas are used as energy storage antennas.

[0207] In addition, if both the first antenna and the second antenna are connected to amplifiers, and the first antenna is connected to a downlink transmission amplifier and the second antenna is connected to a bipolar amplifier, then the antenna combination information, the antenna-amplifier connection type, and the bipolar amplifier connection type need to be indicated separately in different transmission states. For example, the indication information for indicating the antenna combination information is 11, the indication information for indicating the antenna-amplifier connection type is 01, and the indication information for indicating the bipolar amplifier connection type is 00, so as to schedule the backscatter device through the indication information. For example, see Figure 26 As shown, Figure 26 The third structural diagram of a backscattering device with multiple antennas provided in the embodiment of the present application, combined with Figure 26 It can be seen that the two antennas are in energy storage mode, the first switch is connected to the first node on the left, the second switch is connected to the third node below, and the third switch is connected to the node above, indicating that the first antenna does not use the downlink transmission amplifier to store energy, and the second antenna stores energy through the downlink transmission amplifier.

[0208] For example, when the first communication device sends indication information to the backscatter device, the first communication device may send the indication information to the backscatter device via first signaling, so that the backscatter device obtains the indication information. The first signaling includes any one of radio resource control signaling, media access control layer control element signaling, or downlink control information, and can be specifically configured according to actual needs.

[0209] It can be seen that in the embodiment of the present application, the backscatter device reports the first capability information to the first communication device; wherein the first capability information includes the switching capability information and / or amplifier capability information of the backscatter device; correspondingly, the first communication device can determine the antenna switching transmission mode of the backscatter device based on the first capability information, and send indication information for indicating the antenna switching transmission mode to the backscatter device, so that the antenna switching transmission mode of the backscatter device can be accurately configured, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0210] Figure 27 For example, see the second flow chart of another capability reporting method provided in the embodiment of the present application. Figure 27 As shown, the capability reporting method may include:

[0211] S2701. A first communication device receives first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0212] S2702: The first communication device determines an antenna switching transmission mode of the backscatter device according to the first capability information.

[0213] S2703. The first communication device sends instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0214] Optionally, the indication information includes any one or a combination of the following:

[0215] Antenna combination information;

[0216] Antenna and amplifier connection type;

[0217] Bipolar amplifier connection type.

[0218] Optionally, the antenna combination information is used to indicate different combinations of the energy storage antenna and the transmitting antenna. Both the energy storage antenna and the transmitting antenna can be used to receive signals. The different combinations include any of the following:

[0219] All antennas are used for energy storage;

[0220] All antennas are used for signal transmission;

[0221] Some of the antennas are used for energy storage, and some are used for signal transmission.

[0222] Optionally, the relevant modules include at least two of the following:

[0223] Amplifier module;

[0224] Modulation and coding module;

[0225] Energy storage module;

[0226] Wake up the module.

[0227] Optionally, the switch capability information further includes any one of the following or a combination thereof:

[0228] Is the switch connected to an antenna?

[0229] Number of ports on the switch.

[0230] For example, the switch capability information further includes any one of the following or a combination thereof:

[0231] The operating frequency of the switch;

[0232] Isolation of the switch;

[0233] Insertion loss of the switch;

[0234] Return loss of the switch;

[0235] Switching speed of the switch;

[0236] The power handling capability of the switch.

[0237] Optionally, the type of the amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier.

[0238] Optionally, the amplifier capability information further includes any one or a combination of the following:

[0239] Amplifier efficiency;

[0240] The insertion loss of the amplifier;

[0241] The amplification factor of the amplifier;

[0242] The power consumption of the amplifier.

[0243] Optionally, the first capability information further includes any one of the following or a combination thereof:

[0244] the number of antennas in the backscatter device;

[0245] The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device;

[0246] Maximum energy storage capacity of the backscatter device;

[0247] Modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability;

[0248] The operating bandwidth of the backscatter device;

[0249] The impedance quantity of the backscatter device.

[0250] Optionally, when the first capability information includes switch capability information and amplifier capability information, the reporting manner of the switch capability information and the amplifier capability information includes separate reporting or joint reporting.

[0251] Optionally, the first communication device receiving the first capability information reported by the backscatter device includes:

[0252] The first communication device receives the first capability information reported by the backscatter device according to the capability reporting indication of the first communication device;

[0253] receiving first capability information periodically and actively reported by a backscatter device;

[0254] or,

[0255] receiving first capability information reported by a backscatter device during a network registration process;

[0256] or,

[0257] Receive first capability information reported by the backscatter device during the process of adding an application.

[0258] Optionally, the first communication device sends indication information to the backscatter device, including:

[0259] The first communication device sends indication information to the backscatter device through first signaling; wherein the first signaling includes any one of radio resource control signaling, medium access control layer control element signaling or downlink control information.

[0260] Optionally, the capability reporting method further includes:

[0261] Receive a request message sent by a backscatter device; wherein the request message includes any one or a combination of the following:

[0262] Power saving information;

[0263] Low battery information;

[0264] Transmission request information for multiple antennas.

[0265] Correspondingly, determining the antenna switching transmission mode of the backscatter device according to the first capability information includes:

[0266] An antenna switching transmission mode is determined according to the first capability information and the request information.

[0267] The capability reporting method provided in the embodiment of the present invention has an implementation principle and beneficial effects similar to the implementation principle and beneficial effects of the capability reporting method shown in the above embodiment. Please refer to the implementation principle and beneficial effects of the capability reporting method shown in the above embodiment, and no further details will be given here.

[0268] The capability reporting method provided in the embodiment of the present application can be executed by a capability reporting device. In the embodiment of the present application, the capability reporting device provided in the embodiment of the present application is described by taking the capability reporting method executed by the capability reporting device as an example.

[0269] Figure 28 This is one of the structural diagrams of the capability reporting device 280 provided in the embodiment of the present application, see Figure 28 As shown, the capability reporting device 280 is applied to a backscatter device, and the capability reporting device 280 may include:

[0270] The reporting unit 2801 is configured to report first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device.

[0271] The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0272] In the capability reporting device 280 provided in the embodiment of the present application, the reporting unit 2801 in the capability reporting device 280 reports the first capability information to the first communication device; the first capability information includes the switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes the relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier. Accordingly, after obtaining the first capability information of the backscatter device, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device according to the first capability information reported by the backscatter device, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0273] Optionally, the relevant modules include at least two of the following:

[0274] Amplifier module;

[0275] Modulation and coding module;

[0276] Energy storage module;

[0277] Wake up the module.

[0278] Optionally, the switch capability information further includes any one of the following or a combination thereof:

[0279] Is the switch connected to an antenna?

[0280] Number of ports on the switch.

[0281] Optionally, the switch capability information further includes any one of the following or a combination thereof:

[0282] The operating frequency of the switch;

[0283] Isolation of the switch;

[0284] Insertion loss of the switch;

[0285] Return loss of the switch;

[0286] Switching speed of the switch;

[0287] The power handling capability of the switch.

[0288] Optionally, the type of the amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier.

[0289] Optionally, the amplifier capability information further includes any one or a combination of the following:

[0290] Amplifier efficiency;

[0291] The insertion loss of the amplifier;

[0292] The amplification factor of the amplifier;

[0293] The power consumption of the amplifier.

[0294] Optionally, the first capability information further includes any one of the following or a combination thereof:

[0295] the number of antennas in the backscatter device;

[0296] The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device;

[0297] Maximum energy storage capacity of the backscatter device;

[0298] Modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability;

[0299] The operating bandwidth of the backscatter device;

[0300] The impedance quantity of the backscatter device.

[0301] Optionally, when the first capability information includes switch capability information and amplifier capability information, the reporting manner of the switch capability information and the amplifier capability information includes separate reporting or joint reporting.

[0302] Optionally, the reporting unit 2801 is specifically configured to report the first capability information to the first communication device according to the capability reporting indication of the first communication device;

[0303] or,

[0304] The reporting unit 2801 is specifically configured to periodically and proactively report the first capability information to the first communication device by the backscatter device;

[0305] or,

[0306] The reporting unit 2801 is specifically configured to report the first capability information to the first communication device during the network registration process;

[0307] or,

[0308] The reporting unit 2801 is specifically configured to report the first capability information to the first communication device during the process of adding an application.

[0309] Optionally, the backscatter device further includes a transmitting unit.

[0310] A sending unit is configured to send a request message from the backscatter device to the first communication device; wherein the request message includes any one of the following or a combination thereof:

[0311] Power saving information;

[0312] Low battery information;

[0313] Transmission request information for multiple antennas.

[0314] Optionally, the backscatter device further includes a second receiving unit.

[0315] The second receiving unit is used to receive indication information sent by the first communication device; wherein the indication information is used to indicate the antenna switching transmission mode; the antenna switching transmission mode is determined by the first communication device based on the first capability information.

[0316] Optionally, the indication information includes any one or a combination of the following:

[0317] Antenna combination information;

[0318] Antenna and amplifier connection type;

[0319] Bipolar amplifier connection type.

[0320] Optionally, the antenna combination information is used to indicate different combinations of the energy storage antenna and the transmitting antenna. Both the energy storage antenna and the transmitting antenna can be used to receive signals. The different combinations include any of the following:

[0321] All antennas are used for energy storage;

[0322] All antennas are used for signal transmission;

[0323] Some of the antennas are used for energy storage, and some are used for signal transmission.

[0324] Optionally, the second receiving unit is specifically used to receive indication information sent by the first communication device through first signaling; wherein the first signaling includes any one of radio resource control signaling, media access control layer control element signaling or downlink control information.

[0325] Figure 29 The second structural diagram of the capability reporting device 290 provided in the embodiment of the present application is shown in FIG. Figure 29 As shown, the capability reporting device 290 is applied to a backscatter device, and the capability reporting device 290 may include:

[0326] The first receiving unit 2901 is used to receive first capability information reported by the backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

[0327] The processing unit 2902 is configured to determine, according to the first capability information, an antenna switching transmission mode of the backscatter device.

[0328] The sending unit 2903 is used to send instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

[0329] In the capability reporting device 290 provided in the embodiment of the present application, the first receiving unit 2901 in the capability reporting device 290 receives the first capability information reported by the backscatter device; the first capability information includes the switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes the relevant modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; the type of amplifier; the processing unit 2902 in the capability reporting device 290 determines the antenna switching transmission mode of the backscatter device based on the first capability information; the sending unit 2903 in the capability reporting device 290 sends indication information to the backscatter device; wherein the indication information is used to indicate the antenna switching transmission mode, so that the antenna switching transmission mode of the backscatter device can be accurately configured, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0330] Optionally, the indication information includes any one or a combination of the following:

[0331] Antenna combination information;

[0332] Antenna and amplifier connection type;

[0333] Bipolar amplifier connection type.

[0334] Optionally, the antenna combination information is used to indicate different combinations of the energy storage antenna and the transmitting antenna. Both the energy storage antenna and the transmitting antenna can be used to receive signals. The different combinations include any of the following:

[0335] All antennas are used for energy storage;

[0336] All antennas are used for signal transmission;

[0337] Some of the antennas are used for energy storage, and some are used for signal transmission.

[0338] Optionally, the relevant modules include at least two of the following:

[0339] Amplifier module;

[0340] Modulation and coding module;

[0341] Energy storage module;

[0342] Wake up the module.

[0343] Optionally, the switch capability information further includes any one of the following or a combination thereof:

[0344] Is the switch connected to an antenna?

[0345] Number of ports on the switch.

[0346] Optionally, the switch capability information further includes any one of the following or a combination thereof:

[0347] The operating frequency of the switch;

[0348] Isolation of the switch;

[0349] Insertion loss of the switch;

[0350] Return loss of the switch;

[0351] Switching speed of the switch;

[0352] The power handling capability of the switch.

[0353] Optionally, the type of the amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier.

[0354] Optionally, the amplifier capability information further includes any one or a combination of the following:

[0355] Amplifier efficiency;

[0356] The insertion loss of the amplifier;

[0357] The amplification factor of the amplifier;

[0358] The power consumption of the amplifier.

[0359] Optionally, the first capability information further includes any one of the following or a combination thereof:

[0360] the number of antennas in the backscatter device;

[0361] The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device;

[0362] Maximum energy storage capacity of the backscatter device;

[0363] Modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability;

[0364] The operating bandwidth of the backscatter device;

[0365] The amount of impedance of the backscatter device.

[0366] Optionally, when the first capability information includes switch capability information and amplifier capability information, the reporting manner of the switch capability information and the amplifier capability information includes separate reporting or joint reporting.

[0367] Optionally, the first receiving unit 2901 is specifically configured to receive first capability information reported by the backscatter device according to the capability reporting indication of the first communication device;

[0368] or,

[0369] The first receiving unit 2901 is specifically configured to receive first capability information periodically and actively reported by a backscatter device;

[0370] or,

[0371] The first receiving unit 2901 is specifically configured to receive first capability information reported by a backscatter device during a network registration process;

[0372] or,

[0373] The first receiving unit 2901 is specifically configured to receive first capability information reported by a backscatter device during an application adding process.

[0374] Optionally, the sending unit 2903 is specifically configured for the first communication device to send indication information to the backscatter device through a first signaling; wherein the first signaling includes any one of radio resource control signaling, media access control layer control element signaling or downlink control information.

[0375] Optionally, the first communication device further includes a second receiving unit.

[0376] The second receiving unit is configured to receive request information sent by the backscatter device, wherein the request information includes any one of the following or a combination thereof:

[0377] Power saving information;

[0378] Low battery information;

[0379] Transmit request information;

[0380] Correspondingly, the processing unit 2902 is specifically configured to determine the antenna switching transmission mode according to the first capability information and the request information.

[0381] In the embodiments of the present application, the capability reporting device can be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or chip. The electronic device can be a backscatter device, or can be a device other than a backscatter device. For example, the backscatter device can include the types of backscatter devices listed above, and the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiments of the present application.

[0382] The capability reporting device provided in the embodiment of the present application can achieve Figures 17 to 27 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0383] Figure 30A schematic diagram of the structure of the first communication device provided in an embodiment of the present application is shown in FIG. Figure 30 As shown, an embodiment of the present application further provides a first communication device 300, including a processor 3001 and a memory 3002, wherein the memory 3002 stores a program or instruction that can be run on the processor 3001. For example, when the first communication device 3000 is a terminal, the program or instruction is executed by the processor 3001 to implement the various steps of the above-mentioned capability reporting method embodiment, and can achieve the same technical effect. When the first communication device 3000 is a first communication device, the program or instruction is executed by the processor 3001 to implement the various steps of the above-mentioned capability reporting method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0384] An embodiment of the present application also provides a backscatter device, including a processor and a communication interface. The communication interface is configured to report first capability information to a first communication device. The first capability information includes switch capability information and / or amplifier capability information of the backscatter device. The switch capability information includes modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of amplifier. This backscatter device embodiment corresponds to the aforementioned backscatter device-side method embodiment. Each implementation process and method of the aforementioned method embodiment are applicable to this backscatter device embodiment and can achieve the same technical effects.

[0385] Figure 31 A schematic diagram of the structure of the backscattering device 310 provided in an embodiment of the present application is shown in FIG. Figure 31 As shown, the backscatter device 310 includes but is not limited to: a radio frequency unit 3101, a network module 3102, an audio output unit 3103, an input unit 3104, a sensor 3105, a display unit 3106, a user input unit 3107, an interface unit 3108, a memory 3109 and at least some of the components of the processor 3110.

[0386] Those skilled in the art will appreciate that the backscatter device 310 may further include a power source (such as a battery) for supplying power to various components. The power source may be logically connected to the processor x 10 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management to be managed through the power management system. Figure 31 The structure of the backscatter device 310 shown in the figure does not constitute a limitation on the backscatter device 310. The backscatter device 310 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0387] It should be understood that in an embodiment of the present application, the input unit 3104 may include a graphics processing unit (GPU) 31041 and a microphone 31042, and the graphics processor 31041 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 3106 may include a display panel 31061, and the display panel 31061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 3107 includes a touch panel 31071 and at least one of other input devices 31072. The touch panel 31071 is also called a touch screen. The touch panel 31071 may include two parts: a touch detection device and a touch controller. Other input devices 31072 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.

[0388] In the embodiment of the present application, after receiving downlink data from the first communication device, the radio frequency unit 3101 may transmit the data to the processor 3110 for processing. In addition, the radio frequency unit 3101 may send uplink data to the first communication device. Typically, the radio frequency unit 3101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0389] The memory 3109 can be used to store software programs or instructions and various data. The memory 3109 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, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 3109 may include a volatile memory or a non-volatile memory, or the memory 3109 may include both volatile and 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 3109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0390] Processor 3110 may include one or more processing units. Optionally, processor 3110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 3110.

[0391] The radio frequency unit 3101 is used to report first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device 310.

[0392] The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device 310 includes an amplifier; and the type of the amplifier.

[0393] The backscatter device 310 provided in the embodiment of the present application receives the first capability information reported by the backscatter device 310 by the first receiving unit 2601 in the backscatter device 310; the first capability information includes the switch capability information and / or amplifier capability information of the backscatter device 310; wherein the switch capability information includes the relevant modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device 310 includes an amplifier; the type of amplifier. Accordingly, after obtaining the first capability information of the backscatter device 310, the first communication device can accurately configure the antenna switching transmission mode of the backscatter device 310 according to the first capability information reported by the backscatter device 310, thereby effectively improving the accuracy of the antenna switching transmission mode configuration.

[0394] An embodiment of the present application also provides a first communication device, comprising a processor and a communication interface, wherein the communication interface is configured to receive first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of amplifier; the processor is configured to determine an antenna switching transmission mode for the backscatter device based on the first capability information; the communication interface is further configured to send indication information to the backscatter device; wherein the indication information indicates the antenna switching transmission mode. This first communication device embodiment corresponds to the above-mentioned first communication device method embodiment, and each implementation process and implementation of the above-mentioned method embodiment are applicable to this first communication device embodiment and can achieve the same technical effects.

[0395] Figure 32 For a structural diagram of the first communication device 320 provided in an embodiment of the present application, see Figure 32 As shown, the first communication device 320 includes an antenna 3201, a radio frequency device 3202, a baseband device 3203, a processor 3204, and a memory 3205. The antenna 3201 is connected to the radio frequency device 3202. In the uplink direction, the radio frequency device 3202 receives information via the antenna 3201 and sends the received information to the baseband device 3203 for processing. In the downlink direction, the baseband device 3203 processes the information to be transmitted and sends it to the radio frequency device 3202. The radio frequency device 3202 processes the received information and then sends it through the antenna 3201.

[0396] The method executed by the first communication device in the above embodiment may be implemented in the baseband device 3203 , which includes a baseband processor.

[0397] The baseband device 3203 may, for example, include at least one baseband board, on which multiple chips are arranged, as shown in Figure 320, one of which is, for example, a baseband processor, which is connected to the memory 3205 through a bus interface to call the program in the memory 3205 and execute the first communication device operation shown in the above method embodiment.

[0398] The first communication device may further include a network interface 3206 , which may be, for example, a common public radio interface (CPRI).

[0399] Specifically, the first communication device 320 of an embodiment of the present invention also includes: instructions or programs stored in the memory 3205 and executable on the processor 3204. The processor 3204 calls the instructions or programs in the memory 3205 to execute the capability reporting method of the above-mentioned first communication device and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0400] An embodiment of the present application also provides an information reporting system, including: a backscattering device and a first communication device, wherein the backscattering device can be used to execute the steps of the capability reporting method on the reverse device side as described above, and the first communication device can be used to execute the steps of the capability reporting method on the first communication device as described above.

[0401] 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 capability reporting method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0402] 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.

[0403] 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 capability reporting method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0404] 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.

[0405] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned capability reporting method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0406] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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 statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments 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 the opposite 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.

[0407] 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 software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in each embodiment of the present application.

[0408] 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 this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A capability reporting method, characterized in that: include: The backscatter device reports first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

2. The capability reporting method according to claim 1, characterized in that: The related modules include at least two of the following: Amplifier module; Modulation and coding module; Energy storage module; Wake up the module.

3. The capability reporting method according to claim 1 or 2, characterized in that: The switch capability information further includes any one or a combination of the following: Is the switch connected to an antenna? Number of ports on the switch.

4. The capability reporting method according to any one of claims 1 to 3, characterized in that: The switch capability information further includes any one or a combination of the following: The operating frequency of the switch; Isolation of the switch; Insertion loss of the switch; Return loss of the switch; Switching speed of the switch; The power handling capability of the switch.

5. The capability reporting method according to any one of claims 1 to 4, characterized in that: The type of the amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier.

6. The capability reporting method according to any one of claims 1 to 5, characterized in that: The amplifier capability information further includes any one or a combination of the following: Amplifier efficiency; The insertion loss of the amplifier; The amplification factor of the amplifier; The power consumption of the amplifier.

7. The capability reporting method according to any one of claims 1 to 6, characterized in that: The first capability information further includes any one of the following or a combination thereof: the number of antennas in the backscatter device; The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device; the maximum energy storage capacity of the backscatter device; The modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability; The operating bandwidth of the backscatter device; The impedance quantity of the backscatter device.

8. The capability reporting method according to any one of claims 1 to 7, characterized in that: In the case that the first capability information includes the switch capability information and the amplifier capability information, the switch capability information and the amplifier capability information may be reported separately or jointly.

9. The capability reporting method according to any one of claims 1 to 8, characterized in that: The backscatter device reporting first capability information to the first communication device includes: The backscatter device reports the first capability information to the first communication device according to the capability reporting instruction of the first communication device; or, The backscatter device periodically and actively reports the first capability information to the first communication device; or, The backscatter device reports the first capability information to the first communication device during the network registration process; or, The backscatter device reports the first capability information to the first communication device during the process of adding an application.

10. The capability reporting method according to any one of claims 1 to 9, characterized in that: The method further comprises: The backscatter device sends request information to the first communication device; wherein the request information includes any one of the following or a combination thereof: Power saving information; Low battery information; Transmission request information for multiple antennas.

11. The capability reporting method according to any one of claims 1 to 10, characterized in that: The method further comprises: Receive indication information sent by the first communication device; wherein the indication information is used to indicate an antenna switching transmission mode; the antenna switching transmission mode is determined by the first communication device based on the first capability information.

12. The capability reporting method according to claim 11, characterized in that: The instruction information includes any one or a combination of the following: Antenna combination information; Antenna and amplifier connection type; Bipolar amplifier connection type.

13. The capability reporting method according to claim 12, characterized in that: The antenna combination information is used to indicate different combinations of an energy storage antenna and a transmitting antenna, both of which can be used to receive signals, and the different combinations include any of the following: All antennas are used for energy storage; All antennas are used for signal transmission; Some of the antennas are used for energy storage, and some are used for signal transmission.

14. The capability reporting method according to any one of claims 11 to 13, characterized in that: The receiving the indication information sent by the first communication device includes: Receive indication information sent by the first communication device through first signaling; wherein, the first signaling includes any one of radio resource control signaling, media access control layer control element signaling or downlink control information.

15. A capability reporting method, characterized in that: include: The first communication device receives first capability information reported by a backscatter device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier; The first communication device determines, according to the first capability information, an antenna switching transmission mode of the backscatter device; The first communication device sends instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

16. The capability reporting method according to claim 15, characterized in that: The instruction information includes any one or a combination of the following: Antenna combination information; Antenna and amplifier connection type; Bipolar amplifier connection type.

17. The capability reporting method according to claim 16, characterized in that: The antenna combination information is used to indicate different combinations of an energy storage antenna and a transmitting antenna, both of which can be used to receive signals, and the different combinations include any of the following: All antennas are used for energy storage; All antennas are used for signal transmission; Some of the antennas are used for energy storage, and some are used for signal transmission.

18. The capability reporting method according to any one of claims 15 to 17, characterized in that: The related modules include at least two of the following: Amplifier module; Modulation and coding module; Energy storage module; Wake up the module.

19. The capability reporting method according to any one of claims 15 to 18, characterized in that: The switch capability information further includes any one or a combination of the following: Is the switch connected to an antenna? Number of ports on the switch.

20. The capability reporting method according to any one of claims 15 to 19, characterized in that: The switch capability information further includes any one or a combination of the following: The operating frequency of the switch; Isolation of the switch; Insertion loss of the switch; Return loss of the switch; Switching speed of the switch; The power handling capability of the switch.

21. The capability reporting method according to any one of claims 15 to 20, characterized in that: The type of the amplifier includes any one of a downlink transmission amplifier, an uplink transmission amplifier, or a bipolar amplifier.

22. The capability reporting method according to any one of claims 15 to 21, characterized in that: The amplifier capability information further includes any one or a combination of the following: Amplifier efficiency; The insertion loss of the amplifier; The amplification factor of the amplifier; The power consumption of the amplifier.

23. The capability reporting method according to any one of claims 15 to 22, characterized in that: The first capability information further includes any one of the following or a combination thereof: the number of antennas in the backscatter device; The functional type of the backscatter device; wherein the functional type includes any one of a passive backscatter device, a semi-passive backscatter device, or an active backscatter device; the maximum energy storage capacity of the backscatter device; The modulation capability of the backscatter device; wherein the modulation capability includes any one of amplitude modulation capability, frequency modulation capability, or phase modulation capability; The operating bandwidth of the backscatter device; The impedance quantity of the backscatter device.

24. The capability reporting method according to any one of claims 15 to 23, characterized in that: In the case that the first capability information includes the switch capability information and the amplifier capability information, the switch capability information and the amplifier capability information may be reported separately or jointly.

25. The capability reporting method according to any one of claims 15 to 24, characterized in that: The first communication device receiving the first capability information reported by the backscatter device includes: The first communication device receives the first capability information reported by the backscatter device according to the capability reporting indication of the first communication device; or, receiving the first capability information periodically and actively reported by the backscatter device; or, receiving the first capability information reported by the backscatter device during a network registration process; or, Receive the first capability information reported by the backscatter device during the process of adding an application.

26. The capability reporting method according to any one of claims 15 to 25, characterized in that: The first communication device sending indication information to the backscatter device includes: The first communication device sends the indication information to the backscatter device through a first signaling; wherein the first signaling includes any one of radio resource control signaling, medium access control layer control element signaling or downlink control information.

27. The capability reporting method according to any one of claims 15 to 24, characterized in that: The method further comprises: Receive a request message sent by the backscatter device; wherein the request message includes any one or a combination of the following: Power saving information; Low battery information; Transmit request information; Correspondingly, determining the antenna switching transmission mode of the backscatter device according to the first capability information includes: The antenna switching transmission mode is determined according to the first capability information and the request information.

28. A capability reporting device, characterized in that: include: A reporting unit, configured to report first capability information to the first communication device; the first capability information includes switch capability information and / or amplifier capability information of the backscatter device; The switch capability information includes related modules connected to the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier.

29. A capability reporting device, characterized in that: include: a first receiving unit, configured to receive first capability information reported by a backscatter device; the first capability information including switch capability information and / or amplifier capability information of the backscatter device; wherein the switch capability information includes relevant modules connected by the switch, and the amplifier capability information indicates at least one of the following: whether the backscatter device includes an amplifier; and the type of the amplifier; a processing unit, configured to determine, according to the first capability information, an antenna switching transmission mode of the backscatter device; A sending unit is used to send instruction information to the backscatter device; wherein the instruction information is used to instruct the antenna to switch the transmission mode.

30. A backscattering device, characterized in that: The method comprises 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 capability reporting method according to any one of claims 1 to 14 are implemented.

31. A first 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 capability reporting method as described in any one of claims 15 to 27.

32. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the capability reporting method as described in any one of claims 1-14, or implements the steps of the capability reporting method as described in any one of claims 15 to 27.

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