CN115884253A - Backscattering communication method, device and communication equipment - Google Patents

Abstract

The application discloses a backscatter communication method, device, and communication equipment, which belong to the field of communication technology. The backscatter communication method in the embodiment of the application includes: the first communication equipment sends backscatter configuration information to the second communication equipment Or do not execute the first Backscatter operation if the first condition is met; wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation To transmit information, the first communication device is used to receive the radio frequency signal reflected by the second communication device to receive information; the Backscatter configuration information is configuration information determined based on the coexistence IDC problem in the device, and the first Backscatter operation Including at least one of the following: data transmission and reception with the second communication device; carrier transmission used for energy collection by the second communication device.

Description

Backscatter communication method, device and communication equipment

technical field

The present application belongs to the technical field of communication, and in particular relates to a backscatter communication method, device and communication equipment.

Background technique

With the development of electronic technology, a communication device can support multiple types of communication technologies at the same time, for example, the third generation cooperation project (3rd Generation Partnership Project, 3GPP) communication technology (such as New Radio (NewRadio, NR)/Long Term Evolution ( Long Term Evolution, LTE)), Global Navigation Satellite System (Global Navigation Satellite System, GNSS), Backscatter Communication (BSC) technology, etc. In-device coexistence (In-device Coexistence, IDC) problems may exist in a communication device supporting multiple types of communication technologies at the same time, for example, the transmission of NR may interfere with the reception of Backscatter communication. However, in the prior art, there is no relevant solution for how to perform communication when there is an in-device coexistence problem between the Backscatter communication technology and other communication technologies (such as NR/LTE, etc.) in the communication device.

Contents of the invention

Embodiments of the present application provide a backscatter communication method, device, and communication equipment, which can provide a backscatter communication technology and other communication technologies (such as NR/LTE, etc.) A backscatter communication method is provided to reduce communication conflict or interference between Backscatter communication technology and other communication technologies in communication equipment.

In a first aspect, a backscatter communication method is provided, the method comprising:

The first communication device sends backscatter Backscatter configuration information to the second communication device or does not execute the first Backscatter operation if the first condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; being used for the second communication device Harvested carrier emission of energy.

In a second aspect, a backscatter communication method is provided, the method comprising:

The second communication device receives Backscatter configuration information from the first communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first Two radio frequency signals reflected by the communication device to receive information; the Backscatter configuration information is configuration information determined based on an IDC problem.

In a third aspect, a backscatter communication method is provided, the method includes:

The second communication device sends Backscatter request information to the first communication device or does not execute the second Backscatter operation when the third condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

In a fourth aspect, a backscatter communication method is provided, the method comprising:

The first communication device receives the Backscatter request information from the second communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first The radio frequency signal reflected by the second communication device is used to receive information; the Backscatter request information is the request information determined based on the IDC problem.

In a fifth aspect, a backscatter communication device is provided, and the device includes:

The first sending module is configured to send backscatter Backscatter configuration information to the second communication device or not execute the first Backscatter operation when the first condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the backscatter communication device is configured to receive the RF signals reflected by the second communication device to receive information;

The Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; being used for the second communication device Harvested carrier emission of energy.

In a sixth aspect, a backscatter communication device is provided, and the device includes:

The first receiving module is used to receive Backscatter configuration information from the first communication device;

Wherein, the backscatter communication device is used to perform signal modulation with a radio frequency signal transmitted by a device different from the backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive the The radio frequency signal reflected by the backscattering communication device is used to receive information; the Backscatter configuration information is configuration information determined based on an IDC problem.

In a seventh aspect, a backscatter communication device is provided, and the device includes:

The second sending module is used to send Backscatter request information to the first communication device or do not execute the second Backscatter operation when the third condition is met;

Wherein, the backscatter communication device is used to perform signal modulation with a radio frequency signal transmitted by a device different from the backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive the backscatter radio frequency signals reflected by the communication device to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

In an eighth aspect, a backscatter communication device is provided, including:

The third receiving module is used to receive Backscatter request information from the second communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the backscatter communication device is configured to receive the The radio frequency signal reflected by the second communication device is used to receive the information; the Backscatter request information is the request information determined based on the IDC problem.

According to a ninth aspect, a first communication device is provided, and the first communication device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by When the processor is executed, the steps of the method described in the first aspect are realized, or the steps of the method described in the fourth aspect are realized.

In a tenth aspect, a first communication device is provided, including a processor and a communication interface, wherein the communication interface is used to send backscatter Backscatter configuration information to the second communication device or not to Execute the first Backscatter operation;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; being used for the second communication device Harvested energy carrier emission;

or

The communication interface is used to receive Backscatter request information from the second communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first The radio frequency signal reflected by the second communication device is used to receive information; the Backscatter request information is the request information determined based on the IDC problem.

In an eleventh aspect, a second communication device is provided, the second communication device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the program or instruction When executed by the processor, the steps of the method described in the second aspect are realized, or the steps of the method described in the third aspect are realized.

In a twelfth aspect, a second communication device is provided, including a processor and a communication interface, wherein the communication interface is used for the second communication device to receive Backscatter configuration information from the first communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first Two radio frequency signals reflected by the communication equipment to receive information; the Backscatter configuration information is configuration information determined based on the IDC problem;

or

The communication interface is used to send Backscatter request information to the first communication device or not execute the second Backscatter operation when the third condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

A thirteenth aspect provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method as described in the first aspect are implemented, or The steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect.

In a fourteenth aspect, there is provided a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method described in the first aspect The steps of the method, or realize the steps of the method described in the second aspect, or realize the steps of the method described in the third aspect, or realize the steps of the method described in the fourth aspect.

In a fifteenth aspect, a computer program or program product is provided, the computer program or program product is stored in a non-volatile storage medium, and the program or program product is executed by at least one processor to implement the first The steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

In the embodiment of the present application, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device. Since the Backscatter configuration information takes the IDC problem into consideration, performing Backscatter communication based on the Backscatter configuration information can reduce the difference between the Backscatter communication technology and other Communication conflict or interference between communication technologies. In addition, the first communication device does not perform at least one of data transmission and reception with the second communication device and carrier transmission used for energy collection by the second communication device when the first condition is met, that is, Reduce the interference of Backscatter communication technology to other communication technologies or avoid the interference of other communication technologies to Backscatter communication technology by not performing at least some operations related to Backscatter communication.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;

Fig. 2 is the schematic diagram of a kind of Backscatter communication system that the embodiment of the application provides;

Fig. 3 is a schematic diagram of Backscatter communication between a mobile phone and smart glasses provided by an embodiment of the present application;

FIG. 4 is a flow chart of a backscatter communication method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a DRX cycle provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of another DRX cycle provided by an embodiment of the present application;

FIG. 7 is a flow chart of another backscatter communication method provided by an embodiment of the present application;

FIG. 8 is a flow chart of another backscatter communication method provided by an embodiment of the present application;

FIG. 9 is a flowchart of another backscatter communication method provided by an embodiment of the present application;

FIG. 10 is a flowchart of another backscatter communication method provided by an embodiment of the present application;

FIG. 11 is a structural diagram of a backscatter communication device provided by an embodiment of the present application;

FIG. 12 is a structural diagram of another backscatter communication device provided by an embodiment of the present application;

Fig. 13 is a structural diagram of another backscatter communication device provided by an embodiment of the present application;

FIG. 14 is a structural diagram of another backscatter communication device provided by an embodiment of the present application;

Fig. 15 is a structural diagram of a communication device provided by an embodiment of the present application;

Fig. 16 is a structural diagram of a first communication device provided by an embodiment of the present application;

FIG. 17 is a structural diagram of a second communication device provided by an embodiment of the present application;

Fig. 18 is a structural diagram of another second communication device provided by an embodiment of the present application;

FIG. 19 is a structural diagram of another first communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth pointing out that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (OFDMA) , Single-carrier Frequency-Division Multiple Access (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 described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal device 11 , a network side device 12 and a Backscatter communication device 13 . Wherein, the terminal device 11 may also be called a terminal or a user terminal (User Equipment, UE), and the terminal device 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobilepersonal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE ), pedestrian terminals (PUE) and other terminal-side devices, and wearable devices include: smart watches, bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal device 11 . The network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving Point (TransmittingReceiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. The base station in the system is taken as an example, but the specific type of the base station is not limited. The Backscatter communication device 13 may refer to a communication device supporting backscatter communication technology, for example, a Backscatter tag (Tag) or a Backscatter reader (Reader).

It should be noted that the first communication device in the embodiment of the present application may be a terminal device 11 supporting Backscatter communication technology, and the second communication device may be a Backscatter communication device 13; or the second communication device in the embodiment of the present application may be a terminal device supporting Backscatter The terminal device 11 of communication technology, the first communication device may be a Backscatter communication device 13 .

For ease of understanding, the following describes the relevant content involved in the embodiment of the present application:

1. Backscatter Communication (BSC)

Backscatter communication means that backscatter communication devices use other devices or radio frequency signals in the environment to perform signal modulation to transmit their own information. The backscatter communication terminal equipment (BSC UE) may be a tag (Tag) in traditional radio frequency identification (Radio Frequency Identification, RFID), or a passive Internet of Things terminal (Passive Internet of Things, Passive-IoT).

As a passive or low energy consumption technology, Backscatter (backscatter) technology is characterized in that it can complete the transmission of its own signal by changing the characteristics of the received environmental radio frequency signal, such as phase or amplitude information, to achieve extremely low power consumption Or information transfer with zero power consumption. For example, as shown in FIG. 2 , a backscatter transmitter (Backscatter transmitter) transmits information to a reader through a radio frequency signal emitted by a reader (Reader) or a radio frequency signal in an environment.

From the point of view of energy supply mode, BSC UE can be divided into three modes: completely passive (Passive), semi-passive (Semi-passive) and active (Active).

For passive BSC UEs, BSC UEs first harvest energy from external electromagnetic waves (Energy harvesting), and supply internal channel coding and modulation circuit modules to work, and at the same time communicate by reflecting and scattering radio frequency signals, thereby realizing zero-power consumption communication.

For the semi-passive BSC UE, its internal circuit module is powered by its own battery and communicates by backscattering radio frequency signals. Because its internal battery is only used for simple internal circuit modules such as channel coding and modulation, the power consumption is very low, so the battery life of the BSC UE can reach more than ten years. All external radio frequency signals can be used for reverse communication without storing part of the energy for power supply.

For active BSC UE, its built-in battery is not only used for simple internal circuit work such as channel coding and modulation, but also for power amplification (Power Amplifier, PA) and low noise amplification (Low Noise Amplifier, LNA), etc. The circuit works, so the signal modulation and demodulation of more complex backscatter communication can be realized.

Illustratively, Figure 3 shows a Backscatter usage scenario, that is, a scenario in which a mobile phone is used as a Backscatter control device (Reader) and is connected to smart glasses as a Backscatter terminal device (Tag), and the smart glasses collect the energy of the signal sent by the mobile phone, and pass Reflect the signal x(t) sent by the mobile phone to send the Tag information b(t).

2. In-device Coexistence (IDC)

The same device can simultaneously support New Radio (New Radio, NR)/Long Term Evolution (Long Term Evolution, LTE), and Global Navigation Satellite System (GNSS) (for example, Global Positioning System (Global Positioning System, GPS), Global Global Navigation Satellite System (GLONASS), BeiDou Navigation Satellite System (BDS), Galileo Satellite Navigation System (GALILEO) or Indian Constellation Navigation System (Navigation with Indian Constellation, NAVIC), local area network ( Wireless Local Area Network, WLAN) and Bluetooth (bluetooth) and other functions.

Wherein, the in-device coexistence problem may refer to the interference problem on multiple subframes or time slots in the device. Currently, the NR/LTE UE already supports IDC solutions with other technologies such as GNSS, local area network, and Bluetooth, for example, a frequency division multiplexing (Frequency Division Multiplexing, FDM) solution.

Optionally, the UE may report IDC auxiliary information according to the instruction of the network, and the IDC auxiliary information may include frequency points that are being affected or may be affected, and an affected system type (Victim System Type).

Wherein, the aforementioned affected system types may be used to indicate a list of affected system types that NR causes IDC interference when an uplink (Up Link, UL) carrier aggregation (Carrier Aggregation, CA) is configured. The values gps, glonass, bds, galileo and navIC indicate the type of GNSS. A value of wlan indicates WLAN and a value of bluetooth indicates Bluetooth.

The backscatter communication method provided by the embodiment of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Please refer to FIG. 4. FIG. 4 is a flow chart of a backscatter communication method provided by an embodiment of the present application. The method may be executed by the first communication device, as shown in FIG. 4, including the following steps:

Step 401, the first communication device sends Backscatter configuration information to the second communication device or does not execute the first Backscatter operation if the first condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter configuration information is configuration information determined based on an IDC problem, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; Carrier launch.

It should be noted that, in some scenarios, the foregoing first communication device may also be called a Backscatter reader (Reader) or a Backscatter control device. The above-mentioned second communication device may also be called a Backscatter tag (Tag) or a passive IoT or a Backscatter terminal. In addition, at least one of the first communication device and the second communication device may support other communication technologies, such as NR, LTE, Bluetooth, WIFI, GNSS, etc., in addition to the Backscatter communication technology. That is, there is an IDC problem in at least one of the first communication device and the second communication device.

The foregoing Backscatter configuration information is configuration information determined based on an IDC problem. For example, it can be understood that the foregoing Backscatter configuration information may be configuration information determined to avoid an IDC problem. Wherein, the above-mentioned IDC problem may also be referred to as IDC interference. Optionally, the above-mentioned Backscatter configuration information may include frequency division multiplexing (Frequency Division Multiplexing, FDM) related parameters (for example, available frequency points, affected frequency points, etc.), time division multiplexing (Time-Division Multiplexing, TDM) related parameters Parameters (for example, discontinuous transmission (Discontinuous Transmission, DTX) configuration information, discontinuous reception (Discontinuous Reception, DRX) configuration information, etc.) and the like.

The foregoing first condition may be a condition related to an IDC problem, for example, at least one of the first communication device and the second communication device has an IDC problem.

In an embodiment, the first communication device solves the IDC problem between the Backscatter communication technology and other communication technologies by sending the Backscatter configuration information determined based on the IDC problem to the second communication device. The following describes this embodiment in conjunction with examples:

Example 1: When the first communication device has an IDC problem between the Backscatter communication technology and other communication technologies, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device. In this way, the first communication device performs Backscatter communication based on the Backscatter configuration information, which can reduce communication conflict or interference between the Backscatter communication technology and other communication technologies.

For example, the first communication device may configure available frequency points, affected frequency points, available channels, etc. to the second communication device based on configuration information of other communication technologies.

Example 2: In the case where the second communication device has an IDC problem between the Backscatter communication technology and other communication technologies, the second communication device may report the Backscatter request information to the first communication device based on the IDC problem, and the first communication device may report the Backscatter request information based on the IDC problem. The Backscatter request information sends the Backscatter configuration information to the second communication device. In this way, the first communication device performs Backscatter communication based on the Backscatter configuration information, which can reduce communication conflict or interference between the Backscatter communication technology and other communication technologies.

For example, the second communication device may report the affected frequency points, affected channels, etc. based on the configuration information of other communication technologies, and the first communication device may report the affected frequency points, affected channels, etc. based on the second communication device , configure available frequency points, available channels, and the like for the second communication device.

Example 3: In the case that both the first communication device and the second communication device have an IDC problem between the Backscatter communication technology and other communication technologies, the second communication device may report to the first communication device based on the IDC problem in the second communication device After reporting the Backscatter request information, the first communication device may send Backscatter configuration information to the second communication device based on the Backscatter request information and the IDC problem in the first communication device. In this way, the first communication device performs Backscatter communication based on the Backscatter configuration information, which can reduce communication conflict or interference between the Backscatter communication technology and other communication technologies.

For example, if the first communication device has an IDC problem between the Backscatter communication technology and the first communication technology, and the second communication device has an IDC problem between the Backscatter communication technology and the second communication technology, the second communication device can The technology configuration information reports the affected frequencies, affected channels, etc., and the first communication device may report the affected frequencies, affected channels, etc., as well as the configuration information of the first communication technology reported by the second communication device, Configure available frequency points, available channels, etc. for the second communication device. Wherein, both the above-mentioned first communication technology and the second communication technology may be any communication technology different from the Backscatter communication technology.

In another implementation manner, the first communication device solves the IDC problem between the Backscatter communication technology and other communication technologies by not executing the first Backscatter operation when the first condition is met. It should be noted that the above-mentioned non-execution of the first Backscatter operation can be understood as at least one of the following: not starting or not starting the first Backscatter operation; stopping execution of the first Backscatter operation when the first Backscatter operation is in the process of being executed. The following describes this embodiment in conjunction with examples:

Example 1: When the first communication device has an IDC problem between the Backscatter communication technology and other communication technologies, the first communication device does not perform the first Backscatter operation, which can avoid the impact of Backscatter communication on other communication technologies.

Example 2: In the case where the second communication device has an IDC problem between the Backscatter communication technology and other communication technologies, the second communication device may send indication information to the first communication device to indicate that the second communication device has an IDC problem. A communication device does not execute the first Backscatter operation based on the indication information, so that the impact of the Backscatter communication on other communication technologies can be avoided.

In the backscatter communication method provided by the embodiment of the present application, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device. Since the Backscatter configuration information considers the IDC problem, the Backscatter communication based on the Backscatter configuration information can reduce Communication conflict or interference between Backscatter communication technology and other communication technology. In addition, the first communication device does not perform at least one of data transmission and reception with the second communication device and carrier transmission used for energy collection by the second communication device when the first condition is met, that is, To reduce the interference of Backscatter communication technology to other communication technologies by not performing at least some operations related to Backscatter communication.

Optionally, the first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

In this embodiment, the above-mentioned first communication technology may include but not limited to at least one of the following: 3GPP radio access technology (Radio Access Technology, RAT), for example, NR, LTE, etc.; GNSS, for example, GPS, BDS, GLONASS, GALILEO or NAVIC, etc.; communication technology based on Industrial Scientific Medical (ISM) frequency band, such as Bluetooth (Bluetooth), WIFI, Near Field Communication (Near Field Communication, NFC), etc.; air interface, such as Uu interface, Secondary link (SideLink) interface, etc.

In this embodiment, the first communication device has an IDC problem between the Backscatter communication technology and the first communication technology, so that the first communication device can directly determine the Backscatter configuration information based on the configuration information of the first communication technology and send it to the second The communication device, such that the second communication device performs Backscatter communication based on the Backscatter configuration information can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter configuration information may include at least one of the following;

Interference system type;

At least one available frequency point;

at least one affected channel;

At least one unavailable frequency band;

At least one unavailable frequency point;

DRX configuration information;

DTX configuration information.

In this embodiment, the above-mentioned interference system type can be used to indicate the system type that can currently affect or interfere with Backscatter communication. For example, when the interference system type includes the first communication technology (for example, NR, LTE, etc.), it means that the The system type of Backscatter communication includes the system type of the first communication technology.

The affected channels may also be referred to as unavailable channels, where the affected channels may include channels that are being affected or may be affected. The aforementioned unavailable frequency bands may also be referred to as affected frequency bands, and may include frequency bands that are being affected or may be affected. The aforementioned unavailable frequency points may also be referred to as affected frequency points, and may include frequency points that are being affected or may be affected.

The above DRX configuration information may include but not limited to at least one of InactivityTimer, LongCycle, ShortCycle, ShortCycleTimer, Backscatter energy collection duration and Backscatter data sending and receiving duration, etc. one item.

The above DTX configuration information may include but not limited to at least one of DTX cycle and DTX duration.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the DRX configuration information includes at least one of the following:

DRX cycle;

Backscatter energy collection duration;

Backscatter data sending and receiving time.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on the transmission configuration information of the first communication technology.

For example, the Backscatter energy collection duration and the Backscatter data transceiving duration may be determined based on the DRX configuration information of the first communication technology, or the Backscatter data transceiving duration may be determined based on the DRX configuration information of the first communication technology.

Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located within the non-transmission time interval of the first communication technology;

or

The backscatter data sending and receiving duration is within the non-transmitting time interval of the first communication technology.

Optionally, the non-transmission time interval of the first communication technology may be a DRX off (Off) interval of the first communication technology.

In an implementation manner, for example, as shown in FIG. 5 , the Backscatter energy collection duration and the Backscatter data sending and receiving duration are located in the DRX Off interval of the first communication technology.

Taking the first communication device supporting both the first communication technology and Backscatter communication technology as an example, the second communication device may collect energy by using radio frequency signals transmitted by devices other than the first communication device or radio frequency signals in the environment to perform Backscatter energy collection. , in this case, there is no communication conflict or interference between the second communication device performing the Backscatter energy collection process and the first communication technology, therefore, it is only possible to control the Backscatter data sending and receiving time to be located in the non-transmitting interval of the first communication technology, for example, The DRX Off interval, which can reduce the conflict or interference between the Backscatter data sending and receiving and the first communication technology.

In another implementation manner, for example, as shown in FIG. 6 , the Backscatter data sending and receiving duration is within the DRX Off interval of the first communication technology.

Taking the first communication device supporting both the first communication technology and the Backscatter communication technology as an example, the second communication device may use the radio frequency signal transmitted by the first communication device to collect energy for Backscatter energy collection. In this case, Backscatter data transmission and reception may be controlled Both the time and the Backscatter energy collection time are located in the non-transmission interval of the first communication technology, for example, the DRX Off interval, which can reduce the conflict or interference between Backscatter data transmission and reception and Backscatter energy collection and the first communication technology.

Optionally, the first communication device sends Backscatter configuration information to the second communication device, including:

When the second condition is met, the first communication device sends Backscatter configuration information to the second communication device;

Wherein, the second condition includes at least one of the following:

The first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter configuration information changes;

The first communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

In this embodiment, the above-mentioned first communication device works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology at the same time. It can be understood that the first communication device needs to use the Backscatter communication technology for communication and the first communication technology to communicate.

In one embodiment, the Backscatter configuration information may be sent to the second communication device when the first communication device is simultaneously working as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, so that the second communication device is based on The Backscatter configuration information for Backscatter communication can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter configuration information can be sent to the second communication device when an IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the connection between the Backscatter communication technology and the first communication technology can be reduced. While communication conflicts or interference between communication technologies, unnecessary sending of the aforementioned Backscatter configuration information is reduced, saving resources.

In another implementation manner, the Backscatter configuration information may be sent to the second communication device when the Backscatter configuration information changes, so that the second communication device may perform Backscatter communication based on the updated Backscatter configuration information.

In another embodiment, the Backscatter configuration information may be sent to the second communication device when the first communication device needs to perform services related to the first communication technology during Backscatter communication, so that the second communication device is based on Backscatter Configuring information for Backscatter communication can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter configuration information can be sent to the second communication device when the first communication technology is in the connected state and Backscatter communication is required, so that the second communication device can perform Backscatter communication based on the Backscatter configuration information, Communication collisions or interference between the Backscatter communication technology and the first communication technology may be reduced.

In another embodiment, the Backscatter configuration information can be sent to the second communication device when the Backscatter communication technology needs to use a different frequency from the first communication technology to send and receive data, so that the second communication device can transmit and receive data based on the Backscatter Configuring information for Backscatter communication can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology. Optionally, in the case that the Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data, frequency domain configuration information may be sent to the second communication device, for example, available frequency points, affected frequency points, affected frequency bands, etc.

Optionally, this embodiment may send Backscatter configuration information to the second communication device when any of the above conditions is met, for example, once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the The second communication device sends the Backscatter configuration information, and once the Backscatter configuration information changes, it also sends the Backscatter configuration information to the second communication device. In the case of the business, the Backscatter configuration information is also sent to the second communication device, and so on.

Optionally, the first condition may include at least one of the following:

The first communication device works as a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The first communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

In one embodiment, when the above-mentioned first communication device works as a communication device corresponding to the first communication technology, the execution of the first Backscatter operation may not be started or stopped, so that the correlation between Backscatter communication and the first communication technology may be reduced. collision or interference between transmissions.

In another embodiment, when an IDC problem between the Backscatter communication technology and the first communication technology is detected, the first Backscatter operation is not started or stopped, which can reduce the impact of Backscatter communication on the first communication technology. Collision or interference between transmissions related to communication technologies.

In another embodiment, when the first communication device needs to perform services related to the first communication technology during Backscatter communication, it does not start or stop performing the first Backscatter operation, which can reduce The impact of Backscatter Communications on the first communication technology-related business.

In another embodiment, when the first communication technology is in the connected state, the execution of the first Backscatter operation may not be started or stopped, which may reduce the conflict between the Backscatter communication and the transmission related to the first communication technology or interference.

In another embodiment, in the case that the Backscatter communication technology needs to use a different frequency from the first communication technology to send and receive data, the first Backscatter operation is not started or stopped, which can reduce Backscatter communication and the second A collision or interference between transmissions related to a communication technology.

Optionally, this embodiment may not start or stop executing the first Backscatter operation if any of the above conditions are met, for example, once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the Start or stop executing the first Backscatter operation, and do not start or stop executing the first Backscatter operation once the first communication device needs to execute services related to the first communication technology during Backscatter communication, etc. wait.

The embodiment of the application is described below in conjunction with examples:

Example 1: The Backscatter control device coexists with a UE supporting the first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology work in parallel based on FDM.

In this example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter control device. As shown in Figure 7, the backscatter communication method of this embodiment includes:

In step S1, the Backscatter control device sends Backscatter configuration information to the Backscatter label or the Backscatter terminal under the second condition.

Wherein, the Backscatter configuration information includes at least one of the following:

Frequency hopping configuration (Frequency Hopping), used to indicate the list of available frequency points;

At least one affected or potentially affected channel (Channel);

At least one unavailable frequency band (Frequency Band); the frequency band is a frequency band affected or possibly affected by the first communication technology;

At least one unavailable frequency point (Frequency); the frequency point is a frequency point affected or possibly affected by the first communication technology.

Interference system type (Interference System Type); the interference system type includes the system type of the first communication technology.

For the first communication technology and the second condition, reference may be made to the foregoing related descriptions, and details are not repeated here.

Example 2: The Backscatter control device coexists with a UE supporting the first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology work in parallel based on TDM.

In this example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter control device. Specifically, the backscatter communication method of this embodiment includes:

The Backscatter control device sends the Backscatter configuration information to the Backscatter label or the Backscatter terminal under the second condition.

Wherein, the Backscatter configuration information includes at least one of the following: DRX configuration information and DTX configuration information. The DRX configuration information includes at least one of DRX cycle, Backscatter energy collection duration and Backscatter data sending and receiving duration. The DTX configuration information includes at least one of DTX period and DTX duration.

For the first communication technology and the second condition, reference may be made to the foregoing related descriptions, and details are not repeated here.

Example 3: The Backscatter control device coexists with a UE supporting the first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology do not work in parallel.

In this example, the Backscatter communication technique is not performed simultaneously with the first communication technique. When the Backscatter communication technology is concurrent with the first communication technology, the tasks of the first communication technology can be executed preferentially.

Specifically, the backscatter communication method of this embodiment includes:

The Backscatter control device does not start or stop the first Backscatter operation under the first condition, and the first Backscatter operation at least includes at least one of the following:

Send and receive data with the Backscatter terminal;

Carrier emission for energy harvesting by Backscatter terminals.

Wherein, for the first condition, reference may be made to the above-mentioned relevant description, and details are not repeated here.

In summary, the technical solutions provided by the embodiments of the present application can solve the problem of in-device coexistence between Backscatter communication technology and other communication technologies (ie, the first communication technology), and reduce conflict or interference between Backscatter communication and other communication technologies .

Please refer to FIG. 8. FIG. 8 is a flowchart of another backscatter communication method provided by an embodiment of the present application. The method may be executed by a second communication device, as shown in FIG. 8, including the following steps:

Step 801, the second communication device receives Backscatter configuration information from the first communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first Two radio frequency signals reflected by the communication device to receive information; the Backscatter configuration information is configuration information determined based on an IDC problem.

In this embodiment, after the second communication device receives the Backscatter configuration information, it can perform Backscatter communication based on the Backscatter configuration information. communication conflict or interference.

It should be noted that this embodiment is an implementation manner of the second communication device corresponding to the embodiment shown in FIG. 4 , and its specific implementation manner can refer to the relevant description of the embodiment shown in FIG. 4 , and achieve the same beneficial effect. In order to avoid repeated explanations, details are not repeated here.

Optionally, the first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, the Backscatter configuration information includes at least one of the following;

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point;

discontinuous reception of DRX configuration information;

Send DTX configuration information non-continuously.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, the DRX configuration information includes at least one of the following:

DRX cycle;

Backscatter energy collection duration;

Backscatter data sending and receiving time.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on the transmission configuration information of the first communication technology.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located within the non-transmission time interval of the first communication technology;

or

The backscatter data sending and receiving duration is within the non-transmitting time interval of the first communication technology.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, the non-transmission time interval of the first communication technology is a DRX off interval of the first communication technology.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Optionally, the first communication technology includes at least one of the following: 3GPP RAT; air interface; GNSS; communication technology based on ISM frequency band.

It should be noted that, for the implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 4 , and details are not repeated here.

Please refer to FIG. 9. FIG. 9 is a flow chart of another backscatter communication method provided by an embodiment of the present application. The method can be executed by a second communication device, as shown in FIG. 9, and includes the following steps:

Step 901, the second communication device sends Backscatter request information to the first communication device or does not execute the second Backscatter operation if the third condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

It should be noted that, in some scenarios, the foregoing first communication device may also be called a Backscatter reader (Reader) or a Backscatter control device. The above-mentioned second communication device may also be called a Backscatter tag (Tag) or a passive IoT or a Backscatter terminal. In addition, in addition to supporting the Backscatter communication technology, the above-mentioned second communication device may also support other communication technologies, for example, NR, LTE, Bluetooth, WIFI, GNSS, and the like. That is, there is an IDC problem in the second communication device.

The foregoing Backscatter request information may be used to request the first communication device to communicate configuration information related to Backscatter communication for the second communication device. The foregoing Backscatter request information is request information determined based on an IDC problem. For example, it can be understood that the foregoing Backscatter request information may be request information for avoiding IDC problem determination. Wherein, the above-mentioned IDC problem may also be referred to as IDC interference. Optionally, the aforementioned Backscatter request information may include, but not limited to, at least one item of in-device interference indication, Backscatter communication status, IDC auxiliary information, and Backscatter configuration preference information.

The above-mentioned third condition may be a condition related to an IDC problem, for example, there is an IDC problem in the second communication device.

In one embodiment, the second communication device sends the Backscatter request information determined based on the IDC problem to the first communication device, so that the first communication device can determine the Backscatter configuration information based on the Backscatter request information and send it to the second communication device, so that the second communication device The backscatter communication performed by the second communication device based on the Backscatter configuration information can reduce the communication conflict or interference between the Backscatter communication technology and other communication technologies. For example, for example, the second communication device may report the affected frequency points, affected channels, etc. based on the configuration information of other communication technologies, and the first communication device may report the affected frequency points, affected channels, etc. based on the second communication device. Channels, etc., configuring available frequency points, available channels, etc. for the second communication device.

In another implementation manner, the second communication device does not perform the second Backscatter operation when the third condition is satisfied, which can reduce the interference of the Backscatter communication technology to other communication technologies.

It should be noted that the above-mentioned non-execution of the second Backscatter operation can be understood as at least one of the following: not starting or not starting the second Backscatter operation; stopping execution of the second Backscatter operation when the second Backscatter operation is in the process of being executed.

In addition, it should be noted that when the second communication device performs Backscatter energy collection by using radio frequency signals transmitted by devices other than the first communication device or radio frequency signals in the environment to collect energy, the above-mentioned second Backscatter operation can be It only includes sending and receiving data with the first communication device. In the case where the second communication device performs Backscatter energy collection by using the radio frequency signal transmitted by the first communication device to collect energy, the above-mentioned second Backscatter operation may include sending and receiving data with the first communication device and based on the first A carrier wave emitted by a communication device harvests energy.

In the backscatter communication method provided in the embodiment of the present application, the second communication device sends Backscatter request information determined based on the IDC problem to the second communication device, so that the first communication device can send Backscatter configuration information to the second communication device based on the Backscatter request information , because the Backscatter request information considers the IDC problem, so the second communication device performs Backscatter communication based on the Backscatter configuration information, which can reduce communication conflicts or interference between the Backscatter communication technology and other communication technologies. In addition, the second communication device does not perform the second Backscatter operation when the third condition is met, which can reduce communication conflicts or interference between the Backscatter communication technology and other communication technologies.

Optionally, the second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

In this embodiment, the above-mentioned first communication technology may include but not limited to at least one of the following: 3GPP RAT, for example, NR, LTE, etc.; GNSS, for example, GPS, BDS, GLONASS, GALILEO or NAVIC, etc.; communication based on ISM frequency band Technology, for example, Bluetooth (Bluetooth), WIFI, NFC, etc.; air interface, for example, Uu interface, side link (SideLink) interface, etc.

Optionally, the Backscatter request information includes at least one of the following:

In-device interference indication (IDC Indicator);

Backscatter communication status;

IDC auxiliary information;

Backscatter configuration preference information.

In this embodiment, the foregoing intra-device interference indication is used to indicate that there is intra-device interference in the second communication device. The aforementioned Backscatter communication status is used to indicate the status of the second communication device performing Backscatter communication, for example, data transmission pending status, non-response status, and the like. The above IDC auxiliary information is used to indicate IDC related information, for example, affected frequency point, affected channel, interference system type, and the like. The aforementioned Backscatter configuration preference information may include, for example, preference information related to time domain configuration.

Optionally, the IDC auxiliary information includes at least one of the following:

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point.

In this embodiment, the above-mentioned interference system type can be used to indicate the system type that can currently affect or interfere with Backscatter communication. For example, when the interference system type includes the first communication technology (for example, NR, LTE, etc.), it means that the The system type of Backscatter communication includes the system type of the first communication technology.

The affected channels may also be referred to as unavailable channels, where the affected channels may include channels that are being affected or may be affected. The aforementioned unavailable frequency bands may also be referred to as affected frequency bands, and may include frequency bands that are being affected or may be affected. The aforementioned unavailable frequency points may also be referred to as affected frequency points, and may include frequency points that are being affected or may be affected.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the Backscatter configuration preference information includes at least one of the following:

Backscatter energy collection duration;

Backscatter data sending and receiving time;

DTX preference information;

DRX preference information.

In this embodiment, the above DTX preference information may include but not limited to at least one of DTX cycle and DTX duration. The above DRX preference information may include but not limited to at least one of DRX cycle, DRX time offset, DRX duration, Backscatter energy collection duration, Backscatter data sending and receiving duration, and the like.

Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration;

Wherein, the first duration is the DRX duration corresponding to the first communication technology, and the second duration includes the sum of Backscatter capability collection duration and Backscatter data sending and receiving duration, or the second duration includes Backscatter data sending and receiving duration.

In one embodiment, for example, as shown in FIG. 5 , the DRX cycle (DRX Cycle) at least covers the DRX On Duration and Backscatter data sending and receiving duration corresponding to the first communication technology.

Taking the second communication device supporting both the first communication technology and the Backscatter communication technology as an example, the Backscatter energy harvesting can be to use radio frequency signals emitted by devices other than the first communication device or radio frequency signals in the environment to collect energy, in this case , there is no communication conflict or interference between the Backscatter energy collection process and the first communication technology, therefore, it is only possible to control the Backscatter data sending and receiving time to be located in the non-transmission interval of the first communication technology, for example, the DRX off interval, that is, the DRX cycle includes at least The DRX On Duration corresponding to the first communication technology and the duration of Backscatter data transmission and reception can reduce the conflict or interference between Backscatter data transmission and reception and the first communication technology.

In another embodiment, for example, as shown in FIG. 6 , the DRX cycle (DRX Cycle) at least covers DRX OnDuration, Backscatter data sending and receiving duration, and Backscatter energy collection duration corresponding to the first communication technology.

Taking the second communication device supporting both the first communication technology and the Backscatter communication technology as an example, the Backscatter energy collection can be to use the radio frequency signal emitted by the first communication device to collect energy. In this case, the Backscatter data sending and receiving time and the Backscatter energy collection can be controlled The time is located in the non-transmission interval of the first communication technology. For example, the DRX off interval, that is, the DRX cycle includes at least the DRXOnDuration, Backscatter data sending and receiving duration and Backscatter energy collection duration corresponding to the first communication technology, which can reduce Backscatter data sending and receiving and Backscatter energy collection. Energy harvesting conflicts or interferes with the first communication technology.

Optionally, in order to further reduce the conflict or interference between Backscatter data transmission and reception and data transmission and reception of the first communication technology, the duration of data transmission and reception of the first communication technology can be counted in advance, and the above-mentioned DRX cycle (DRX Cycle) can be greater than or equal to the first communication technology. The sum of the DRX On Duration corresponding to the technology, the preset data sending and receiving time of the first communication technology, and the Backscatter data sending and receiving time.

Optionally, the Backscatter communication status includes at least one of the following:

a data transmission suspended state, the data transmission suspended state indicates that the second communication device suspends data transmission;

A non-response state, the non-response state means that the second communication device does not respond to the command of the first communication device.

In this embodiment, when the second communication device is in a state of suspending data transmission, the second communication device suspends data transmission. In the case that the second communication device is in the non-response state, the second communication device does not respond to the command of the first communication device.

Optionally, the second communication device sends Backscatter request information to the first communication device, including:

When the fourth condition is met, the second communication device sends Backscatter request information to the first communication device;

Wherein, the fourth condition includes at least one of the following:

The second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter request information changes;

The second communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The second communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

In this embodiment, the above-mentioned second communication device works simultaneously as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology. It can be understood that the second communication device needs to use the Backscatter communication technology for communication and the first communication technology to communicate.

In one embodiment, the Backscatter request information may be sent to the first communication device when the second communication device is simultaneously working as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, so that the first communication device is based on The Backscatter request information sends the Backscatter configuration information to the second communication device for Backscatter communication, which can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter request information may be sent to the first communication device when an IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device requests information based on the Backscatter Sending the Backscatter configuration information to the second communication device for Backscatter communication can further reduce the unnecessary sending of the above-mentioned Backscatter request information while reducing the communication conflict or interference between the Backscatter communication technology and the first communication technology, and save resources.

In another embodiment, the Backscatter request information can be sent to the first communication device when the Backscatter request information changes, so that the first communication device can resend the Backscatter configuration information to the second communication device based on the updated Backscatter request information To perform Backscatter communication, and reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter request information may be sent to the first communication device when the second communication device needs to execute a service related to the first communication technology when performing Backscatter communication, so that the first communication device is based on Backscatter Requesting information for Backscatter communication can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter request information can be sent to the first communication device when the first communication technology is in the connected state and Backscatter communication is required, so that the first communication device sends the second communication device based on the Backscatter request information Sending the Backscatter configuration information for Backscatter communication can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

In another embodiment, the Backscatter request information may be sent to the first communication device when the Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data, so that the first communication device transmits Backscatter request information based on the Backscatter request. The information sends Backscatter configuration information to the second communication device to perform Backscatter communication, thereby reducing communication conflict or interference between the Backscatter communication technology and the first communication technology. Optionally, in the case that the Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data, frequency domain related information may be sent to the first communication device, for example, available frequency points, affected frequency points, affected frequency bands, etc.

Optionally, this embodiment may send Backscatter request information to the first communication device when any of the above conditions are met, for example, once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the The first communication device sends Backscatter request information, and once the Backscatter request information transmission changes, it also sends Backscatter request information to the first communication device, once the second communication device needs to perform an operation related to the first communication technology in the case of Backscatter communication. In the case of the business, the Backscatter request information is also sent to the first communication device, and so on.

Optionally, the third condition includes at least one of the following:

The second communication device works as a communication device corresponding to the first communication technology;

detecting an in-device coexistence issue between said Backscatter communication technology and said first communication technology;

The second communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

In one embodiment, when the above-mentioned second communication device works as the communication device corresponding to the first communication technology, the execution of the second Backscatter operation may not be started or stopped, so that the transmission related to the first communication technology may be reduced conflict or interference.

In another embodiment, when an IDC problem between the Backscatter communication technology and the first communication technology is detected, the second Backscatter operation is not started or stopped, which can reduce the communication between the Backscatter communication and the first communication technology. Collision or interference between transmissions related to communication technologies.

In another embodiment, when the second communication device needs to perform services related to the first communication technology during Backscatter communication, it does not start or stop performing the second Backscatter operation, which can reduce The impact of Backscatter Communications on the first communication technology-related business.

In another embodiment, when the first communication technology is in the connected state, the execution of the second Backscatter operation may not be started or stopped, which may reduce the conflict between the Backscatter communication and the transmission related to the first communication technology or interference.

In another embodiment, in the case that the Backscatter communication technology needs to use a different frequency from the first communication technology to send and receive data, the second Backscatter operation is not started or stopped, which can reduce the impact of the Backscatter communication on the first communication technology. A collision or interference between transmissions related to a communication technology.

Optionally, this embodiment may not start or stop executing the second Backscatter operation when any of the above conditions is met, for example, once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the Start or stop executing the second Backscatter operation, and do not start or stop executing the second Backscatter operation once the second communication device needs to execute services related to the first communication technology during Backscatter communication, etc. wait.

Optionally, the method may also include:

The second communication device receives first configuration information from the first communication device; wherein the first configuration information is used to configure whether the second communication device is allowed to send the Backscatter request information.

In this embodiment, when the first configuration information indicates that the second communication device is allowed to send the Backscatter request information, the second communication device may send the Backscatter request information to the first communication device, otherwise the second communication device is not allowed to send the Backscatter request information to the first communication device. The device sends Backscatter request information.

The embodiment of the application is described below in conjunction with examples:

Example 1: a Backscatter terminal coexists with a UE supporting a first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology work in parallel based on FDM.

In this example, the UE supporting the first communication technology such as 3GPP TAT is a Backscatter terminal. Specifically, the backscatter communication method of this embodiment includes:

The Backscatter terminal sends Backscatter request information to the Backscatter control device under the fourth condition.

Wherein, the Backscatter request information includes at least one of the following:

Frequency hopping configuration (Frequency Hopping), used to indicate the list of available frequency points;

At least one affected or potentially affected channel (Channel);

At least one unavailable frequency band (Frequency Band); the frequency band is a frequency band affected or possibly affected by the first communication technology;

At least one unavailable frequency point (Frequency); the frequency point is a frequency point affected or possibly affected by the first communication technology.

Interference system type (Interference System Type); the interference system type includes the system type of the first communication technology.

For the first communication technology and the fourth condition, reference may be made to the foregoing related descriptions, and details are not repeated here.

Example 2: the Backscatter terminal coexists with a UE supporting the first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology work in parallel based on TDM.

In this example, the UE supporting the first communication technology such as 3GPP TAT is a Backscatter terminal. Specifically, the backscatter communication method of this embodiment includes:

The Backscatter terminal sends Backscatter request information to the Backscatter control device under the fourth condition.

Wherein, the Backscatter request information includes at least one of the following:

Indication of interference within the device;

Backscatter communication status;

Backscatter configuration preference information.

Among them, the Backscatter configuration preference information includes at least one of the following:

Backscatter energy collection duration;

Backscatter data sending and receiving time;

DTX preference information;

DRX preference information.

For the first communication technology and the fourth condition, reference may be made to the foregoing related descriptions, and details are not repeated here.

Example 3: the Backscatter terminal coexists with a UE supporting the first communication technology such as 3GPP TAT, and the Backscatter communication technology and the first communication technology do not work in parallel.

In this example, the Backscatter communication technique is not performed simultaneously with the first communication technique. When the Backscatter communication technology is concurrent with the first communication technology, the tasks of the first communication technology can be executed preferentially.

Specifically, the backscatter communication method of this embodiment includes:

The Backscatter terminal does not start or stop the second Backscatter operation under the third condition, and the second Backscatter operation at least includes:

Send and receive data with Backscatter control device;

or

Data transmission and reception with the Backscatter control device and energy harvesting based on the carrier wave transmitted by the Backscatter control device.

Wherein, for the third condition, reference may be made to the above-mentioned relevant descriptions, and details are not repeated here.

In summary, the technical solutions provided by the embodiments of the present application can solve the problem of in-device coexistence between the Backscatter communication technology and other communication technologies (ie, the first communication technology), and reduce the transmission between Backscatter communication and the first communication technology. conflict or interference.

Please refer to FIG. 10. FIG. 10 is a flow chart of another backscatter communication method provided by an embodiment of the present application. The method may be executed by the first communication device, as shown in FIG. 10, including the following steps:

Step 1001, the first communication device receives Backscatter request information from the second communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first The radio frequency signal reflected by the second communication device is used to receive information; the Backscatter request information is the request information determined based on the IDC problem.

In this embodiment, after the first communication device receives the Backscatter request information, it can send Backscatter configuration information to the second communication device based on the Backscatter request information, and then the second communication device can perform Backscatter communication based on the Backscatter configuration information, for example, based on the Backscatter configuration information Perform Backscatter energy collection and Backscatter data transmission and reception to reduce communication conflicts or interference between Backscatter communication technology and other communication technologies.

It should be noted that this embodiment is an implementation manner of the first communication device corresponding to the embodiment shown in FIG. 9 , and its specific implementation manner can refer to the relevant description of the embodiment shown in FIG. 9 , and achieve the same beneficial effect. In order to avoid repeated explanations, details are not repeated here.

Optionally, the second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the Backscatter request information includes at least one of the following:

Indication of interference within the device;

Backscatter communication status;

IDC auxiliary information;

Backscatter configuration preference information.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the IDC auxiliary information includes at least one of the following:

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the Backscatter configuration preference information includes at least one of the following:

Backscatter energy collection duration;

Backscatter data sending and receiving time;

DTX preference information;

DRX preference information.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration;

Wherein, the first duration is the DRX duration corresponding to the first communication technology, and the second duration includes the sum of Backscatter capability collection duration and Backscatter data sending and receiving duration, or the second duration includes Backscatter data sending and receiving duration.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the Backscatter communication status includes at least one of the following:

a data transmission suspended state, the data transmission suspended state indicates that the second communication device suspends data transmission;

A non-response state, the non-response state means that the second communication device does not respond to the command of the first communication device.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the first communication technology includes at least one of the following: 3GPP RAT; air interface; GNSS; communication technology based on ISM frequency band.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

Optionally, the method also includes:

The first communication device sends first configuration information to the second communication device; wherein the first configuration information is used to configure whether the second communication device is allowed to send the Backscatter request information.

It should be noted that, for an implementation manner of this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 9 , and details are not repeated here.

It should be noted that, the backscatter communication method provided in the embodiment of the present application may be executed by a backscatter communication device, or a control module in the backscatter communication device for executing the backscatter communication method. In the embodiment of the present application, the backscatter communication device provided in the embodiment of the present application is described by taking the backscatter communication device performing the backscatter communication method as an example.

Please refer to FIG. 11. FIG. 11 is a structural diagram of a backscatter communication device provided in an embodiment of the present application. As shown in FIG. 11, the backscatter communication device 1100 includes:

The first sending module 1101 is configured to send backscatter Backscatter configuration information to the second communication device or not execute the first Backscatter operation if the first condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the backscatter communication device is configured to receive the RF signals reflected by the second communication device to receive information;

The Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; being used for the second communication device Harvested carrier emission of energy.

Optionally, the backscatter communication device supports Backscatter communication technology and a first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter configuration information includes at least one of the following;

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point;

discontinuous reception of DRX configuration information;

Send DTX configuration information non-continuously.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the DRX configuration information includes at least one of the following:

DRX cycle;

Backscatter energy collection duration;

Backscatter data sending and receiving time.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on the transmission configuration information of the first communication technology.

Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located within the non-transmission time interval of the first communication technology;

or

The backscatter data sending and receiving duration is within the non-transmitting time interval of the first communication technology.

Optionally, the non-transmission time interval of the first communication technology is a DRX off interval of the first communication technology.

Optionally, the first sending module is specifically configured to:

Sending Backscatter configuration information to the second communication device when the second condition is met;

Wherein, the second condition includes at least one of the following:

The backscatter communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter configuration information changes;

The backscatter communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The backscatter communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

Optionally, the first condition includes at least one of the following:

The backscatter communication device works as a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The backscatter communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

Optionally, the first communication technology includes at least one of the following: 3rd Generation Partnership Project Radio Access Technology 3GPP RAT; air interface; global satellite navigation system GNSS; communication technology based on industrial science medical ISM frequency band.

The backscatter communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal device. The apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but not limited to the types of terminal equipment 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.

The backscatter communication device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 12. FIG. 12 is a structural diagram of a backscatter communication device provided by an embodiment of the present application. As shown in FIG. 12, the backscatter communication device 1200 includes:

The first receiving module 1201 is configured to receive Backscatter configuration information from the first communication device;

Wherein, the backscatter communication device is used to perform signal modulation with a radio frequency signal transmitted by a device different from the backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive the The radio frequency signal reflected by the backscattering communication device is used to receive information; the Backscatter configuration information is configuration information determined based on an IDC problem.

Optionally, the first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter configuration information includes at least one of first configuration information and second configuration information;

Wherein, the first configuration information includes at least one of the following items: interference system type; at least one available frequency point; at least one affected channel; at least one unavailable frequency band; at least one unavailable frequency point;

The second configuration information includes at least one of the following: DRX configuration information; DTX configuration information.

The backscatter communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a Backscatter tag.

The backscatter communication device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 8 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 13. FIG. 13 is a structural diagram of a backscatter communication device provided by an embodiment of the present application. As shown in FIG. 13, the backscatter communication device 1300 includes:

The second sending module 1301 is configured to send Backscatter request information to the first communication device or not execute the second Backscatter operation when the third condition is met;

Wherein, the backscatter communication device is used to perform signal modulation with a radio frequency signal transmitted by a device different from the backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive the backscatter radio frequency signals reflected by the communication device to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

Optionally, the backscatter communication device supports Backscatter communication technology and a first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter request information includes at least one of the following:

Indication of interference within the device;

Backscatter communication status;

IDC auxiliary information;

Backscatter configuration preference information.

Optionally, the IDC auxiliary information includes at least one of the following:

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the Backscatter configuration preference information includes at least one of the following:

Backscatter energy collection duration;

Backscatter data sending and receiving time;

DTX preference information;

DRX preference information.

Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration;

Wherein, the first duration is the DRX duration corresponding to the first communication technology, and the second duration includes the sum of Backscatter capability collection duration and Backscatter data sending and receiving duration, or the second duration includes Backscatter data sending and receiving duration.

Optionally, the Backscatter communication status includes at least one of the following:

A data transmission suspended state, the data transmission suspended state indicates that the backscatter communication device suspends data transmission;

A non-response state, the non-response state means that the backscatter communication device does not respond to the command of the first communication device.

Optionally, the second sending module is specifically configured to:

Sending Backscatter request information to the first communication device when the fourth condition is met;

Wherein, the fourth condition includes at least one of the following:

The backscatter communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter request information changes;

The backscatter communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The backscatter communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

Optionally, the third condition includes at least one of the following:

The backscatter communication device works as a communication device corresponding to the first communication technology;

detecting an in-device coexistence issue between said Backscatter communication technology and said first communication technology;

The backscatter communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

Optionally, the first communication technology includes at least one of the following: 3GPP RAT; air interface; GNSS; communication technology based on ISM frequency band.

Optionally, the device also includes:

The second receiving module is configured to receive first configuration information from the first communication device; wherein the first configuration information is used to configure whether the backscatter communication device is allowed to send the Backscatter request information.

The backscatter communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal device. The apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but not limited to the types of terminal equipment 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.

The backscatter communication device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 9 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 14. FIG. 14 is a structural diagram of a backscatter communication device provided by an embodiment of the present application. As shown in FIG. 14, the backscatter communication device 1400 includes:

A third receiving module 1401, configured to receive Backscatter request information from a second communication device;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the backscatter communication device is configured to receive the The radio frequency signal reflected by the second communication device is used to receive the information; the Backscatter request information is the request information determined based on the IDC problem.

Optionally, the second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter request information includes at least one of the following:

Indication of interference within the device;

Backscatter communication status;

IDC auxiliary information;

Backscatter configuration preference information.

The backscatter communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a Backscatter reader.

The backscatter communication device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 10 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 15 , this embodiment of the present application further provides a communication device 1500, including a processor 1501, a memory 1502, and programs or instructions stored in the memory 1502 and operable on the processor 1501, For example, when the communication device 1500 is the first communication device, when the program or instruction is executed by the processor 1501, each process of the above embodiment of the first communication device side backscatter communication method can be realized, and the same technical effect can be achieved. When the communication device 1500 is the second communication device, when the program or instruction is executed by the processor 1501, the various processes of the above-mentioned embodiment of the second communication device side backscatter communication method can be achieved, and the same technical effect can be achieved. In order to avoid duplication , which will not be repeated here.

The embodiment of the present application also provides a first communication device, including a processor and a communication interface, wherein the communication interface is used to send the backscatter Backscatter configuration information to the second communication device or not when the first condition is met. Executing a first Backscatter operation; wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device It is used to receive the radio frequency signal reflected by the second communication device to receive information; the Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: Data transceiving between two communication devices; carrier transmission used for energy collection by the second communication device. This first communication device embodiment corresponds to the above-mentioned first communication device-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this first communication device embodiment, and can achieve the same technical effect. Specifically, FIG. 16 is a schematic diagram of a hardware structure of a first communication device implementing an embodiment of the present application.

The first communication device 1600 includes but not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, and a processor 1610 etc. at least some parts.

Those skilled in the art can understand that the first communication device 1600 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1610 through the power management system, so that the management of charging, discharging, and power management functions. The structure of the first communication device shown in FIG. 16 does not constitute a limitation to the first communication device. The first communication device may include more or less components than shown in the figure, or combine certain components, or arrange different components. , which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 1604 may include a graphics processor (Graphics Processing Unit, GPU) 16041 and a microphone 16042. Camera) to process the image data of still pictures or videos. The display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1607 includes a touch panel 16071 and other input devices 16072 . Touch panel 16071, also called touch screen. The touch panel 16071 may include two parts: a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1601 receives the downlink data from the network side device, and processes it to the processor 1610; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 161 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1609 can be used to store software programs or instructions as well as various data. The memory 1609 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1610 may include one or more processing units; optionally, the processor 1610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1610 .

Wherein, the radio frequency unit 1601 is configured to send backscatter Backscatter configuration information to the second communication device or not execute the first Backscatter operation if the first condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter configuration information is configuration information determined based on the IDC coexistence problem in the device, and the first Backscatter operation includes at least one of the following: sending and receiving data with the second communication device; being used for the second communication device Harvested carrier emission of energy.

Optionally, the first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter configuration information includes at least one of the following;

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point;

discontinuous reception of DRX configuration information;

Send DTX configuration information non-continuously.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the DRX configuration information includes at least one of the following:

DRX cycle;

Backscatter energy collection duration;

Backscatter data sending and receiving time.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on the transmission configuration information of the first communication technology.

Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located within the non-transmission time interval of the first communication technology;

or

The backscatter data sending and receiving duration is within the non-transmitting time interval of the first communication technology.

Optionally, the non-transmission time interval of the first communication technology is a DRX off interval of the first communication technology.

Optionally, the radio frequency unit 1601 is specifically used for:

When the second condition is met, the first communication device sends Backscatter configuration information to the second communication device;

Wherein, the second condition includes at least one of the following:

The first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter configuration information changes;

The first communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

Optionally, the first condition includes at least one of the following:

The first communication device works as a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The first communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

Optionally, the first communication technology includes at least one of the following: 3rd Generation Partnership Project Radio Access Technology 3GPP RAT; air interface; global satellite navigation system GNSS; communication technology based on industrial science medical ISM frequency band.

The embodiment of the present application also provides a second communication device, including a processor and a communication interface, wherein the communication interface is used to receive Backscatter configuration information from the first communication device; wherein the second communication device is used to use the The radio frequency signal transmitted by a different device of the second communication device or the radio frequency signal in the environment performs signal modulation to transmit information, and the first communication device is used to receive the radio frequency signal reflected by the second communication device to receive information; The above Backscatter configuration information is the configuration information determined based on the IDC problem. This second communication device embodiment corresponds to the above-mentioned second communication device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this second communication device embodiment, and can achieve the same technology Effect.

Specifically, the embodiment of the present application further provides a second communication device. As shown in FIG. 17 , the second communication device 1700 includes: an antenna 171 , a radio frequency device 172 , and a baseband device 173 . The antenna 171 is connected to a radio frequency device 172 . In the uplink direction, the radio frequency device 172 receives information through the antenna 171, and sends the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes the information to be sent and sends it to the radio frequency device 172 , and the radio frequency device 172 processes the received information and sends it out through the antenna 171 .

The foregoing frequency band processing device may be located in the baseband device 173 , and the method performed by the second communication device in the above embodiment may be implemented in the baseband device 173 , and the baseband device 173 includes a processor 174 and a memory 175 .

The baseband device 173 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The second communication device shown in the above method embodiments operates.

The baseband device 173 may further include a network interface 176 for exchanging information with the radio frequency device 172, the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the second communication device in the embodiment of the present invention further includes: instructions or programs stored in the memory 175 and operable on the processor 174, and the processor 174 calls the instructions or programs in the memory 175 to execute the various functions shown in FIG. The method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.

The embodiment of the present application also provides a second communication device, including a processor and a communication interface, wherein the communication interface is used to send Backscatter request information to the first communication device or not execute the second communication device when the third condition is met. Backscatter operation; wherein, the second communication device is used to transmit information by using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive The radio frequency signal reflected by the second communication device to receive information; the Backscatter request information is the request information determined based on the IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the The second Backscatter operation includes sending and receiving data with the first communication device and collecting energy based on the carrier wave transmitted by the first communication device. This second communication device embodiment corresponds to the above-mentioned second communication device side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this second communication device embodiment, and can achieve the same technical effect. Specifically, FIG. 16 is a schematic diagram of a hardware structure of a second communication device implementing an embodiment of the present application.

The second communication device 1800 includes, but is not limited to: a radio frequency unit 1801, a network module 1802, an audio output unit 1803, an input unit 1804, a sensor 1805, a display unit 1806, a user input unit 1807, an interface unit 1808, a memory 1809, and a processor 1810 etc. at least some parts.

Those skilled in the art can understand that the second communication device 1800 may also include a power supply (such as a battery) for supplying power to various components. and power management functions. The structure of the second communication device shown in FIG. 18 does not constitute a limitation to the second communication device. The second communication device may include more or less components than shown in the figure, or combine some components, or arrange different components. , which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 1804 may include a graphics processor (Graphics Processing Unit, GPU) 18041 and a microphone 18042. Camera) to process the image data of still pictures or videos. The display unit 1806 may include a display panel 18061, and the display panel 18061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1807 includes a touch panel 18071 and other input devices 18072 . Touch panel 18071, also called touch screen. The touch panel 18071 can include two parts: a touch detection device and a touch controller. Other input devices 18072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1801 receives the downlink data from the network side device, and processes it to the processor 1810; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 181 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1809 can be used to store software programs or instructions as well as various data. The memory 1809 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1809 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1810 may include one or more processing units; optionally, the processor 1810 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1810 .

Wherein, the radio frequency unit 1801 is configured to send Backscatter request information to the first communication device or not execute the second Backscatter operation when the third condition is met;

Wherein, the second communication device is configured to use a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the first communication device is configured to receive the first 2. RF signals reflected by communication equipment to receive information;

The Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation includes sending and receiving data with the first communication device, or the second Backscatter operation includes communicating with the first communication device data transmission and reception and energy collection based on the carrier wave transmitted by the first communication device.

Optionally, the second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

Optionally, the Backscatter request information includes at least one of the following:

Indication of interference within the device;

Backscatter communication status;

IDC auxiliary information;

Backscatter configuration preference information.

Optionally, the IDC auxiliary information includes at least one of the following:

Interference system type;

At least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

At least one unavailable frequency point.

Optionally, when the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference system type includes the system type of the first communication technology, and the at least one affected The channel includes at least one channel affected by the first communication technology, the at least one unavailable frequency band includes at least one frequency band affected by the first communication technology, and the at least one unavailable frequency point includes the frequency point affected by the At least one frequency point affected by the first communication technology.

Optionally, the Backscatter configuration preference information includes at least one of the following:

Backscatter energy collection duration;

Backscatter data sending and receiving time;

DTX preference information;

DRX preference information.

Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration;

Wherein, the first duration is the DRX duration corresponding to the first communication technology, and the second duration includes the sum of Backscatter capability collection duration and Backscatter data sending and receiving duration, or the second duration includes Backscatter data sending and receiving duration.

Optionally, the Backscatter communication status includes at least one of the following:

a data transmission suspended state, the data transmission suspended state indicates that the second communication device suspends data transmission;

A non-response state, the non-response state means that the second communication device does not respond to the command of the first communication device.

Optionally, the radio frequency unit 1801 is specifically configured to:

Sending Backscatter request information to the first communication device when the fourth condition is met;

Wherein, the fourth condition includes at least one of the following:

The second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

detecting an IDC problem between said Backscatter communication technology and said first communication technology;

The Backscatter request information changes;

The second communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The second communication device needs to perform Backscatter communication when the first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to send and receive data.

Optionally, the third condition includes at least one of the following:

The second communication device works as a communication device corresponding to the first communication technology;

detecting an in-device coexistence issue between said Backscatter communication technology and said first communication technology;

The second communication device needs to perform services related to the first communication technology in the case of Backscatter communication;

The first communication technology is in a connected state;

The Backscatter communication technology needs to use a frequency different from that of the first communication technology to transmit and receive data.

Optionally, the first communication technology includes at least one of the following: 3GPP RAT; air interface; GNSS; communication technology based on ISM frequency band.

Optionally, the radio frequency unit 1801 is also used for:

Receive first configuration information from the first communication device; wherein the first configuration information is used to configure whether to allow the second communication device to send the Backscatter request information.

The embodiment of the present application also provides a first communication device, including a processor and a communication interface, wherein the communication interface is used to receive Backscatter request information from a second communication device; wherein the second communication device is used to utilize the The radio frequency signal transmitted by a different device of the second communication device or the radio frequency signal in the environment performs signal modulation to transmit information, and the first communication device is used to receive the radio frequency signal reflected by the second communication device to receive information; The above Backscatter request information is the request information determined based on the IDC problem. The embodiment of the first communication device corresponds to the method embodiment of the first communication device described above, and the various implementation processes and implementation methods of the above method embodiments can be applied to the embodiment of the first communication device, and can achieve the same technology Effect.

Specifically, the embodiment of the present application further provides a first communication device. As shown in FIG. 19 , the first communication device 1900 includes: an antenna 191 , a radio frequency device 192 , and a baseband device 193 . The antenna 191 is connected to the radio frequency device 192 . In the uplink direction, the radio frequency device 192 receives information through the antenna 191, and sends the received information to the baseband device 193 for processing. In the downlink direction, the baseband device 193 processes the information to be sent and sends it to the radio frequency device 192 , and the radio frequency device 192 processes the received information and sends it out through the antenna 191 .

The foregoing frequency band processing apparatus may be located in the baseband apparatus 193 , and the method performed by the first communication device in the above embodiments may be implemented in the baseband apparatus 193 , and the baseband apparatus 193 includes a processor 194 and a memory 195 .

The baseband device 193, for example, may include at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG. The first communication device shown in the above method embodiments operates.

The baseband device 193 may further include a network interface 196 for exchanging information with the radio frequency device 192, such as a common public radio interface (CPRI for short).

Specifically, the first communication device in the embodiment of the present invention further includes: instructions or programs stored in the memory 195 and operable on the processor 194, and the processor 194 calls the instructions or programs in the memory 195 to execute the various functions shown in FIG. The method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.

An embodiment of the present application also provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the above embodiment of the first communication device side backscatter communication method is implemented. The various processes, or the various processes in the embodiment of the backscatter communication method at the second communication device side described above, can achieve the same technical effect, and are not repeated here to avoid repetition.

Wherein, the processor is the processor in the first communication device described in the above embodiment, or the processor in the second communication device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, the chip 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 realize the side reaction of the first communication device. The various processes of the embodiment of the backscatter communication method, or the various processes of the embodiment of the backscatter communication method at the second communication device side, can achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out 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 reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to enable a terminal (which may be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (40)

1. A method of backscatter communication, comprising:

the first communication device sends backscattering Backscatter configuration information to the second communication device or does not execute first Backscatter operation under the condition that a first condition is met;

the second communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment so as to transmit information, and the first communication device is used for receiving the radio frequency signal reflected by the second communication device so as to receive information;

the Backscatter configuration information is configuration information determined based on an in-device coexistence (IDC) problem, and the first Backscatter operation includes at least one of: data transceiving with the second communication device; a carrier transmission for the second communication device to collect energy.

2. The method of claim 1, wherein the first communication device supports a backscater communication technology and a first communication technology, and wherein the IDC problem is an IDC problem between the backscater communication technology and the first communication technology.

3. The method of claim 1 or 2, wherein the Backscatter configuration information comprises at least one of;

a type of interfering system;

at least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

at least one unavailable frequency point;

discontinuous Reception (DRX) configuration information;

and discontinuously sending DTX configuration information.

4. The method of claim 3, wherein the interfering system type comprises a system type of the first communication technology in a case that the IDC problem is an IDC problem between a Backscater communication technology and the first communication technology, wherein the at least one affected channel comprises at least one channel affected by the first communication technology, wherein the at least one unavailable frequency band comprises at least one frequency band affected by the first communication technology, and wherein the at least one unavailable frequency band comprises at least one frequency band affected by the first communication technology.

5. The method of claim 3, wherein the DRX configuration information comprises at least one of:

a DRX period;

backscater energy collection duration;

and Backscatter data transceiving time.

6. The method of claim 5, wherein the DRX configuration information is determined based on transmission configuration information of a first communication technology where the IDC problem is an IDC problem between a backscater communication technology and the first communication technology.

7. The method of claim 6, wherein the backscater energy collection duration and backscater data transceiving duration are within a non-transmission time interval of the first communication technology; or

And the Backscatter data transceiving time length is positioned in a non-transmitting time interval of the first communication technology.

8. The method of claim 7, wherein the non-transmission time interval of the first communication technology is a DRX off interval of the first communication technology.

9. The method of claim 2, wherein the first communication device sending Backscatter configuration information to a second communication device comprises:

the first communication equipment sends backscater configuration information to second communication equipment under the condition that a second condition is met;

wherein the second condition comprises at least one of:

the first communication equipment works as communication equipment corresponding to the Backscatter communication technology and communication equipment corresponding to the first communication technology at the same time;

detecting an IDC problem between the backscater communication technology and the first communication technology;

the Backscatter configuration information changes;

the first communication equipment needs to execute the business related to the first communication technology under the condition of backscater communication;

the first communication device needs Backscatter communication when the first communication technology is in a connected state;

the Backscatter communication technique requires a different frequency to transceive data than the first communication technique.

10. The method of claim 2, wherein the first condition comprises at least one of:

the first communication equipment works as communication equipment corresponding to the first communication technology;

detecting an IDC problem between the backscater communication technology and the first communication technology;

the first communication equipment needs to execute business related to the first communication technology under the condition of Backscatter communication;

the first communication technology is in a connected state;

the backscater communication technique requires a different frequency to transceive data than the first communication technique.

11. The method of claim 2, wherein the first communication technology comprises at least one of: third generation partnership project radio access technology 3GPP RAT; an air interface; a global navigation satellite system GNSS; the communication technology based on industrial scientific medical ISM frequency band.

12. A method of backscatter communication, comprising:

the second communication equipment receives Backscatter configuration information from the first communication equipment;

the second communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment so as to transmit information, and the first communication device is used for receiving the radio frequency signal reflected by the second communication device so as to receive the information; the Backscatter configuration information is configuration information determined based on IDC problems.

13. The method of claim 12, wherein the first communication device supports a backscater communication technology and a first communication technology, and wherein the IDC problem is an IDC problem between the backscater communication technology and the first communication technology.

14. The method of claim 12 or 13, wherein the Backscatter configuration information comprises at least one of;

a type of interfering system;

at least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

at least one unavailable frequency point;

receiving DRX configuration information discontinuously;

and discontinuously sending DTX configuration information.

15. A method of backscatter communication, comprising:

the second communication equipment sends backscater request information to the first communication equipment or does not execute second backscater operation under the condition of meeting a third condition;

the second communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment so as to transmit information, and the first communication device is used for receiving the radio frequency signal reflected by the second communication device so as to receive the information;

the Backscatter request information is determined based on IDC problems; the second Backscatter operation includes data transceiving with the first communication device, or the second Backscatter operation includes data transceiving with the first communication device and energy collection based on a carrier transmitted by the first communication device.

16. The method of claim 15, wherein the second communication device supports a backscater communication technology and a first communication technology, and wherein the IDC problem is an IDC problem between the backscater communication technology and the first communication technology.

17. The method of claim 15 or 16, wherein the Backscatter request message comprises at least one of:

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscater configures preference information.

18. The method of claim 17, wherein the IDC assistance information comprises at least one of:

a type of interfering system;

at least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

at least one unavailable frequency point.

19. The method of claim 18, wherein the interfering system type comprises a system type of the first communication technology in a case that the IDC problem is an IDC problem between a Backscatter communication technology and the first communication technology, wherein the at least one affected channel comprises at least one channel affected by the first communication technology, wherein the at least one unavailable frequency band comprises at least one frequency band affected by the first communication technology, and wherein the at least one unavailable frequency band comprises at least one frequency band affected by the first communication technology.

20. The method of claim 17, wherein the Backscatter configuration preference information comprises at least one of:

backscater energy collection duration;

backscater data receiving and sending time;

DTX preference information;

DRX preference information.

21. The method of claim 20, wherein the DRX preference information comprises a DRX cycle, wherein the DRX cycle covers at least a first duration and a second duration;

the first duration is DRX duration corresponding to the first communication technology, the second duration comprises the sum of Backscatter capacity collection duration and backscater data transceiving duration, or the second duration comprises backscater data transceiving duration.

22. The method of claim 17, wherein the Backscatter communication state comprises at least one of:

a data transmission suspend state indicating that the second communication device suspends data transmission;

a non-responsive state indicating that the second communication device is not responsive to the command of the first communication device.

23. The method of claim 16, wherein the second communication device sending a Backscatter request message to the first communication device comprises:

the second communication equipment sends Backscatter request information to the first communication equipment under the condition that a fourth condition is met;

wherein the fourth condition comprises at least one of:

the second communication device works as a communication device corresponding to the backscater communication technology and a communication device corresponding to the first communication technology at the same time;

detecting an IDC problem between the backscater communication technology and the first communication technology;

the Backscatter request information changes;

the second communication device needs to execute the business related to the first communication technology under the condition of Backscatter communication;

the second communication equipment needs Backscatter communication under the condition that the first communication technology is in a connection state;

the Backscatter communication technique requires a different frequency to transceive data than the first communication technique.

24. The method of claim 16, wherein the third condition comprises at least one of:

the second communication device works as a communication device corresponding to the first communication technology;

detecting an in-device coexistence problem between the backscater communication technology and the first communication technology;

the second communication device needs to execute the business related to the first communication technology under the condition of Backscatter communication;

the first communication technology is in a connected state;

the Backscatter communication technique requires a different frequency to transceive data than the first communication technique.

25. The method of claim 16, wherein the first communication technology comprises at least one of: a 3GPP RAT; an air interface; GNSS; communication technology based on ISM frequency band.

26. The method of claim 15, further comprising:

the second communication device receiving first configuration information from the first communication device; the first configuration information is used for configuring whether the second communication device is allowed to send the Backscatter request information.

27. A method of backscatter communication, comprising:

the first communication equipment receives Backscatter request information from the second communication equipment;

the second communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment so as to transmit information, and the first communication device is used for receiving the radio frequency signal reflected by the second communication device so as to receive information; the Backscatter request information is determined based on IDC problems.

28. The method of claim 27, wherein the second communication device supports a backscater communication technology and a first communication technology, and wherein the IDC problem is an IDC problem between the backscater communication technology and the first communication technology.

29. The method of claim 27 or 28, wherein the Backscatter request message comprises at least one of:

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

30. A backscatter communications device, comprising:

the first sending module is used for sending backscattering Backscatter configuration information to the second communication equipment or not executing first Backscatter operation under the condition that a first condition is met;

the second communication equipment is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by equipment different from the second communication equipment or a radio frequency signal in the environment so as to transmit information, and the backscattering communication device is used for receiving the radio frequency signal reflected by the second communication equipment so as to receive the information;

the Backscatter configuration information is configuration information determined based on an in-device coexistence (IDC) problem, and the first Backscatter operation includes at least one of: data transceiving with the second communication device; a carrier transmission for the second communication device to collect energy.

31. The apparatus of claim 30, wherein the Backscatter communication device supports a Backscatter communication technology and a first communication technology, and wherein the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

32. The apparatus of claim 30 or 31, wherein the backscater configuration information comprises at least one of;

a type of interfering system;

at least one available frequency point;

at least one affected channel;

at least one unavailable frequency band;

at least one unavailable frequency point;

discontinuous Reception (DRX) configuration information;

and discontinuously sending DTX configuration information.

33. A backscatter communications device, comprising:

the first receiving module is used for receiving Backscatter configuration information from the first communication equipment;

the backscattering communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by equipment different from the backscattering communication device or a radio frequency signal in the environment so as to transmit information, and the first communication equipment is used for receiving the radio frequency signal reflected by the backscattering communication device so as to receive the information; the Backscatter configuration information is configuration information determined based on IDC problems.

34. A backscatter communications device, comprising:

the second sending module is used for sending Backscatter request information to the first communication equipment or not executing second Backscatter operation under the condition that a third condition is met;

the backscatter communication device is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by equipment different from the backscatter communication device or a radio frequency signal in the environment so as to transmit information, and the first communication equipment is used for receiving the radio frequency signal reflected by the backscatter communication device so as to receive the information;

the Backscatter request information is determined based on IDC problems; the second Backscatter operation includes data transceiving with the first communication device, or the second Backscatter operation includes data transceiving with the first communication device and energy collection based on a carrier transmitted by the first communication device.

35. The apparatus of claim 34, wherein the Backscatter communications device supports a Backscatter communications technology and a first communications technology, and wherein the IDC problem is an IDC problem between the Backscatter communications technology and the first communications technology.

36. The apparatus of claim 34 or 35, wherein the Backscatter request information comprises at least one of:

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

37. A backscatter communication device, comprising:

the third receiving module is used for receiving Backscatter request information from the second communication equipment;

the second communication equipment is used for carrying out signal modulation by utilizing a radio frequency signal transmitted by equipment different from the second communication equipment or a radio frequency signal in the environment so as to transmit information, and the backscattering communication device is used for receiving the radio frequency signal reflected by the second communication equipment so as to receive the information; the Backscatter request information is determined based on IDC problems.

38. A first communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the backscatter communications method of any one of claims 1 to 11 or implementing the steps of the backscatter communications method of any one of claims 27 to 29.

39. A second communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the backscatter communication method of any one of claims 12 to 14 or implementing the steps of the backscatter communication method of any one of claims 15 to 26.

40. A readable storage medium, on which a program or instructions are stored, which program or instructions, when executed by a processor, carry out the steps of the backscatter communication method of any one of claims 1 to 11, or carry out the steps of the backscatter communication method of any one of claims 12 to 14, or carry out the steps of the backscatter communication method of any one of claims 15 to 26, or carry out the steps of the backscatter communication method of any one of claims 27 to 29.

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