CN115884253A

CN115884253A - Backscattering communication method, device and communication equipment

Info

Publication number: CN115884253A
Application number: CN202111152593.XA
Authority: CN
Inventors: 刘选兵
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-03-31
Also published as: WO2023051445A1

Abstract

The application discloses a backscattering communication method, a backscattering communication device and a communication device, which belong to the technical field of communication, and the backscattering communication method of the embodiment of the application comprises the following steps: 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 IDC (inter-device coexistence) problem, and the first backscater operation includes at least one of: data transceiving with the second communication device; a carrier transmission for the second communication device to collect energy.

Description

Backscatter communication method, device and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a backscattering communication method, a backscattering communication device and communication equipment.

Background

With the development of electronic technology, a Communication device can simultaneously support multiple types of Communication technologies, for example, third Generation Partnership project (3 gpp) Communication technologies (such as New Radio, NR)/Long Term Evolution (LTE)), global Navigation Satellite System (GNSS), backscattering Communication (BSC) technologies, and the like. There may be In-device Coexistence (IDC) issues for communication devices that support multiple types of communication technologies simultaneously, e.g., the transmission of an NR may interfere with the reception of a backscater communication. However, in the prior art, there is no solution on how to perform communication in the case of the in-device coexistence problem between the backscater communication technology and other communication technologies (such as NR/LTE, etc.) in the communication device.

Disclosure of Invention

Embodiments of the present application provide a Backscatter communication method, apparatus, and communication device, which can provide a Backscatter communication mode under the condition that an in-device coexistence problem exists between a Backscatter communication technology and other communication technologies (such as NR/LTE, etc.) in the communication device, so as to reduce communication collision or interference between the Backscatter communication technology and the other communication technologies in the communication device.

In a first aspect, a method of backscatter communication is provided, the method 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 IDC (inter-device coexistence) problem, and the first backscater operation includes at least one of: data transceiving with the second communication device; a carrier transmission for the second communication device to collect energy.

In a second aspect, a method of backscatter communication is provided, the method 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 information; the Backscatter configuration information is configuration information determined based on IDC problems.

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

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

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.

In a fourth aspect, a method of backscatter communication is provided, the method 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.

In a fifth aspect, there is provided a backscatter communication apparatus, the apparatus 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 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 backscattering 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 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.

In a sixth aspect, there is provided a backscatter communications apparatus, the apparatus 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.

In a seventh aspect, a backscatter communications apparatus is provided, the apparatus 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 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;

In an eighth aspect, there is provided a backscatter communication apparatus, the apparatus 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.

In a ninth aspect, there is provided 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 method according to the first aspect or implementing the steps of the method according to the fourth aspect.

A tenth aspect provides a first communication device, comprising a processor and a communication interface, wherein the communication interface is configured to send backscattering configuration information to a second communication device or not perform a first backscattering operation if a first condition is satisfied;

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;

or alternatively

The communication interface is used for receiving Backscatter request information from the second communication equipment;

In an eleventh aspect, there is provided a second communication 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 method according to the second aspect or implementing the steps of the method according to the third aspect.

In a twelfth aspect, a second communication device is provided, which includes a processor and a communication interface, where the communication interface is configured to receive backscater configuration information from a first communication device by the second communication device;

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 IDC problems;

or

The communication interface 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;

In a thirteenth aspect, there is provided a readable storage medium, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect, or implement the steps of the method according to the fourth aspect.

In a fourteenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect, or to implement the steps of the method according to the third aspect, or to implement the steps of the method according to the fourth aspect.

A fifteenth aspect provides a computer program or program product stored on a non-volatile storage medium for execution by at least one processor to perform the steps of the method as described in the first aspect, or to perform the steps of the method as described in the second aspect, or to perform the steps of the method as described in the third aspect, or to perform the steps of the method as described in the fourth aspect.

In the embodiment of the application, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device, and because the IDC problem is considered in the Backscatter configuration information, communication conflict or interference between the Backscatter communication technology and other communication technologies can be reduced by performing Backscatter communication based on the Backscatter configuration information. Furthermore, the first communication device does not perform at least one of data transceiving with the second communication device and carrier transmission for the second communication device to collect energy if the first condition is satisfied, that is, reduces or avoids interference of the backscater communication technology with other communication technologies by not performing operations related at least in part to backscater communication.

Drawings

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

fig. 2 is a schematic diagram of a backscater communication system according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of Backscatter communication between a mobile phone and smart glasses according to an embodiment of the present disclosure;

fig. 4 is a flowchart of a backscatter communication method provided by an embodiment of the present application;

fig. 5 is a schematic diagram of a DRX cycle according to an embodiment of the present disclosure;

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 application;

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

fig. 9 is a flow chart of another backscatter communication method provided by an embodiment of the application;

fig. 10 is a flow chart of another backscatter communication method provided by an embodiment of the application;

fig. 11 is a block diagram of a backscatter communication device according to an embodiment of the application;

fig. 12 is a block diagram of another backscatter communication device provided in an embodiment of the application;

fig. 13 is a block diagram of another backscatter communication device provided in an embodiment of the application;

fig. 14 is a block diagram of another backscatter communication device provided by embodiments of the application;

fig. 15 is a block diagram of a communication device according to an embodiment of the present application;

fig. 16 is a block diagram of a first communication device provided in an embodiment of the present application;

fig. 17 is a structural diagram of a second communication device provided in the embodiment of the present application;

fig. 18 is a block diagram of another second communication device provided in the embodiment of the present application;

fig. 19 is a block diagram of another first communication device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. 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 other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally used herein in a generic sense to distinguish one element from another, and not necessarily from another element, such as a first element which may be one or more than one. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency Division Multiple Access (Single-carrier Frequency-Division Multiple Access (sc)), or Code Division Multiple Access (CDMA-a) systemsMultiple Access, SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system comprises 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 Equipment (UE), the terminal Device 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the specific type of the terminal device 11 is not limited in the embodiments of the present application. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited. The Backscatter communication device 13 may refer to a communication device that supports a Backscatter communication technology, such as a Backscatter Tag (Tag) or a Backscatter Reader (Reader), and the like.

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

For the convenience of understanding, the following description refers to the relevant contents of the embodiments of the present application:

1. backscatter Communication (BSC)

Backscatter communication refers to the transmission of its information by backscatter communication devices that use radio frequency signals from other devices or the environment for signal modulation. The backscatter communication terminal equipment (BSC UE) may be a Tag (Tag) in a conventional Radio Frequency Identification (RFID) or a Passive Internet of Things terminal (Passive-IoT).

Backscattering technology is a passive or low-power-consumption technology, and is technically characterized in that transmission of self signals can be completed by changing characteristics of received environment radio frequency signals, such as phase or amplitude information, and information transmission with extremely low power consumption or zero power consumption is achieved. For example, as shown in fig. 2, a Backscatter transmitter (Backscatter transmitter) transmits information to a Reader (Reader) through a radio frequency signal transmitted by the Reader or a radio frequency signal in the environment.

From the aspect of energy supply, the BSC UE can be divided into a completely Passive (Passive), a Semi-Passive (Semi-Passive) and an Active (Active) manner.

For passive BSC UE, BSC UE first obtains Energy (Energy harnessing) from external electromagnetic waves, supplies the Energy to internal circuit modules such as channel coding and modulation, and communicates in reflected and scattered radio frequency signals, thereby implementing zero power consumption communication.

For a semi-passive BSC UE, its internal circuit modules are powered by its own battery and communicate by backscattering radio frequency signals. Because the internal battery is only used for the operation of internal circuit modules such as simple channel coding and modulation and the like, the power consumption is very low, and 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 energy for power supply.

For the active BSC UE, the battery built in the active BSC UE is not only used for simple internal circuit operations such as channel coding and modulation, but also used for circuit operations such as Power Amplifier (PA) and Low Noise Amplifier (LNA), so that more complex signal modulation and demodulation for backscatter communication can be realized.

For example, as shown in fig. 3, a Backscatter usage scenario is a scenario in which a mobile phone is connected as a Backscatter control device (Reader) to smart glasses as a backscater terminal device (Tag), and the smart glasses collect energy of a signal transmitted by the mobile phone and transmit information b (t) of the Tag by reflecting the signal x (t) transmitted by the mobile phone.

2. In-device Coexistence (IDC)

The same device may simultaneously support functions of a New Radio (NR)/Long Term Evolution (LTE), a Global Navigation System (GNSS) (e.g., global Navigation System (GPS), global Navigation Satellite System (GLONASS), beiDou Navigation Satellite System (BDS), galileo Satellite Navigation System (Satellite Navigation System, satellite earth) or Indian Navigation Constellation System (Navigation with Indian Constellation), local Area Network (WLAN), bluetooth, and so on).

The in-device coexistence problem may refer to an interference problem in multiple subframes or slots in the device. Currently, NR/LTE UEs have supported IDC schemes such as Frequency Division Multiplexing (FDM) schemes with other technologies such as GNSS, local area network, and bluetooth.

Optionally, the UE may report IDC assistance information according to an indication of the network, where the IDC assistance information may include a frequency point being affected or possibly affected and a affected System Type (virtual System Type).

The affected system type may be used to indicate a list of affected system types where NR causes IDC interference when uplink (Up Link, UL) Carrier Aggregation (CA) is configured. The values gps, glonass, bds, galileo and navIC indicate the type of GNSS. The value WLAN denotes WLAN and the value bluetooth denotes bluetooth.

The backscatter communication method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings by using some embodiments and application scenarios thereof.

Referring to fig. 4, fig. 4 is a flowchart of a backscatter communication method provided by an embodiment of the present application, where the method may be executed by a first communication device, and as shown in fig. 4, the method includes the following steps:

step 401, the first communication device sends backscater configuration information to the second communication device or does not execute the first backscater operation when the first condition is met;

the Backscatter configuration information is configuration information determined based on an 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.

It should be noted that, in some scenarios, the first communication device may also be referred to as a Backscatter Reader (Reader) or a Backscatter control device. The second communication device described above may also be referred to as a backscater Tag (Tag) or a passive IoT or backscater 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, and the like, in addition to the Backscatter communication technology. I.e. IDC problems are present in at least one of the first communication device and the second communication device.

The Backscatter configuration information is configuration information determined based on IDC problems, and for example, it is understood that the Backscatter configuration information may be configuration information determined to avoid IDC problems. Wherein the IDC problem may also be referred to as IDC interference. Alternatively, the Backscatter configuration information may include Frequency Division Multiplexing (FDM) related parameters (for example, available Frequency points, affected Frequency points, and the like), time Division Multiplexing (TDM) related parameters (for example, discontinuous Transmission (DTX) configuration information, discontinuous Reception (DRX) configuration information, and the like), and the like.

The first condition may be a condition related to an IDC problem, e.g. an IDC problem exists in at least one of the first communication device and the second communication device.

In one embodiment, the first communication device solves the IDC problem between the backscater communication technology and other communication technologies by sending backscater configuration information determined based on the IDC problem to the second communication device. The present embodiment is described below by way of example:

example one: in the case that the first communication device has an IDC problem between the backscater communication technology and other communication technologies, the first communication device sends backscater configuration information determined based on the IDC problem to the second communication device. Therefore, the first communication device carries out Backscatter communication based on Backscatter configuration information, and communication conflicts or interferences between the Backscatter communication technology and other communication technologies can be reduced.

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 two: in the case that the second communication device has an IDC problem between the backscater communication technology and another communication technology, the second communication device may report backscater request information to the first communication device based on the IDC problem, and the first communication device may send backscater configuration information to the second communication device based on the backscater request information. Therefore, the first communication device carries out Backscatter communication based on Backscatter configuration information, and communication conflicts or interferences between the Backscatter communication technology and other communication technologies can be reduced.

For example, the second communication device may report the affected frequency point, the affected channel, and the like based on the configuration information of other communication technologies, and the first communication device may configure the available frequency point, the available channel, and the like for the second communication device based on the affected frequency point, the affected channel, and the like reported by the second communication device.

Example three: when both the first communication device and the second communication device have IDC problems between the Backscatter communication technology and other communication technologies, the second communication device may report backscater request information to the first communication device based on the IDC problem in the second communication device, and the first communication device may send backscater configuration information to the second communication device based on the backscater request information and the IDC problem in the first communication device. Therefore, the first communication device carries out Backscatter communication based on Backscatter configuration information, and communication conflicts or interferences between the Backscatter communication technology and other communication technologies can be reduced.

For example, the first communication device has an IDC problem between a Backscatter communication technology and a first communication technology, the second communication device has an IDC problem between the backscater communication technology and a second communication technology, the second communication device may report an affected frequency point, an affected channel, and the like based on configuration information of the second communication technology, and the first communication device may configure an available frequency point, an available channel, and the like for the second communication device based on the affected frequency point, the affected channel, and the like reported by the second communication device and configuration information of the first communication technology. Both the first communication technology and the second communication technology can be any communication technology different from the backscater communication technology.

In another embodiment, the first communication device solves the IDC problem between the backscater communication technology and the other communication technology by not performing the first backscater operation if the first condition is satisfied. It should be noted that the above-mentioned not executing the first Backscatter operation may be understood as at least one of the following: not starting or not starting the first backscater operation; and stopping executing the first Backscatter operation in the case that the first Backscatter operation is in the process of being executed. The present embodiment is described below with reference to examples:

the first example is as follows: in the case where the first communication device has IDC problems between the backscater communication technology and other communication technologies, the first communication device does not perform the first backscater operation, which can avoid the influence of backscater communication on other communication technologies.

Example two: under the condition that the second communication device has the IDC problem between the backscater communication technology and other communication technologies, the second communication device can send indication information to the first communication device to indicate that the second communication device has the IDC problem, and the first communication device does not execute the first backscater operation based on the indication information, so that the influence of backscater communication on other communication technologies can be avoided.

According to the backscattering communication method provided by the embodiment of the application, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device, and because the IDC problem is considered by the Backscatter configuration information, communication conflict or interference between a Backscatter communication technology and other communication technologies can be reduced by carrying out Backscatter communication based on the Backscatter configuration information. Furthermore, the first communication device does not perform at least one of data transceiving with the second communication device and carrier transmission for the second communication device to collect energy if the first condition is satisfied, that is, reduces interference of the backscater communication technology with other communication technologies by not performing operations at least partially related to backscater communication.

Optionally, the first communication device supports a 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.

In this embodiment, the first communication technology may include, but is not limited to, at least one of the following: 3GPP Radio Access Technology (RAT), e.g., NR, LTE, etc.; GNSS, such as GPS, BDS, GLONASS, GALILEO or NANIC, etc.; communication technologies based on the Industrial Scientific Medical (ISM) frequency band, such as Bluetooth (Bluetooth), WIFI, near Field Communication (NFC), and the like; an air interface, such as a Uu interface, a SideLink (SideLink) interface, etc.

In this embodiment, the first communication device has the IDC problem between the backscater communication technology and the first communication technology, so that the first communication device can determine the backscater configuration information directly based on the configuration information of the first communication technology and send the backscater configuration information to the second communication device, and thus, the second communication device can reduce communication conflict or interference between the backscater communication technology and the first communication technology by performing backscater communication based on the backscater configuration information.

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

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;

DRX configuration information;

DTX configuration information.

In this embodiment, the above-mentioned interfering system type may be used to indicate a system type that may currently affect or interfere with the Backscatter communication, for example, when the interfering system type includes the first communication technology (e.g., NR, LTE, etc.), the system type indicating that the currently interfered with the backscater 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 unusable frequency bands may also be referred to as affected frequency bands and may include frequency bands that are or may be affected. The unavailable frequency point may also be referred to as an affected frequency point, and may include a frequency point that is being affected or may be affected.

The DRX configuration information may include, but is not limited to, at least one of an inactivity timer (inactivity timer), a long cycle (LongCycle), a short cycle (ShortCycle), a short cycle timer (ShortCycle timer), a backscater energy collection duration, a backscater data transceiving duration, and the like.

The DTX configuration information may include, but is not limited to, at least one of a DTX period, a DTX duration, and the like.

Optionally, in a case that the IDC problem is an IDC problem between a Backscatter communication technology and a first communication technology, the interfering system type includes a system type of the first communication technology, the at least one affected 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 band includes at least one frequency band affected by the first communication technology.

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

a DRX period;

backscater energy collection duration;

and Backscatter data transceiving time.

Optionally, in a case that the IDC problem is an IDC problem between a backscater communication technology and a first communication technology, the DRX configuration information is determined based on 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 DRX configuration information of the first communication technology, or the Backscatter data transceiving duration may be determined based on DRX configuration information of the first communication technology.

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

or alternatively

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

In one embodiment, for example, as shown in fig. 5, the Backscatter energy collection duration and the Backscatter data transceiving duration are located in a DRX Off interval of the first communication technology.

Taking the first communication device as an example that the first communication device supports both the first communication technology and the Backscatter communication technology, the energy collection by the second communication device may be to collect energy by using a radio frequency signal transmitted by a device other than the first communication device or a radio frequency signal in an environment, and in this case, there is no communication collision or interference between the backscater energy collection process performed by the second communication device and the first communication technology, so that only the backscater data transceiving time may be controlled to be located in a non-transmission interval of the first communication technology, for example, a DRX Off interval, which may reduce collision or interference between backscater data transceiving and the first communication technology.

In another embodiment, for example, as shown in fig. 6, the backscater data transceiving duration is located at a DRX Off interval of the first communication technology.

Taking the first communication device as an example that the first communication device supports both the first communication technology and the Backscatter communication technology, the performing, by the second communication device, backscatter energy collection may be to collect energy by using a radio frequency signal transmitted by the first communication device, and in this case, both the Backscatter data transceiving time and the Backscatter energy collection time may be controlled to be located in a non-transmission interval, for example, a DRX Off interval, of the first communication technology, so that collisions or interferences between the Backscatter data transceiving and the Backscatter energy collection and the first communication technology may be reduced.

Optionally, the sending, by the first communication device, backscatter configuration information to the second communication device includes:

the first communication equipment sends Backscatter 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 business related to the first communication technology under the condition of Backscatter 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.

In this embodiment, the first communication device simultaneously operates as a communication device corresponding to a Backscatter communication technology and a communication device corresponding to a first communication technology, and it can be understood that the first communication device needs to communicate by using the backscater communication technology and communicate by using the first communication technology.

In an embodiment, backscatter configuration information may be sent to the second communication device when the first communication device simultaneously operates as a communication device corresponding to a Backscatter communication technology and a communication device corresponding to the first communication technology, so that the second communication device performs Backscatter communication based on the Backscatter configuration information, and communication collision or interference between the Backscatter communication technology and the first communication technology may be reduced.

In another embodiment, the backscater configuration information may be sent to the second communication device when an IDC problem between the backscater communication technology and the first communication technology is detected, so that unnecessary sending of the backscater configuration information may be reduced while communication collision or interference between the backscater communication technology and the first communication technology is reduced, and resources are saved.

In another embodiment, 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, backscatter configuration information may be sent to the second communication device when the first communication device needs to perform a service related to the first communication technology when performing Backscatter communication, so that the second communication device performs Backscatter communication based on the Backscatter configuration information, and communication collision or interference between the Backscatter communication technology and the first communication technology may be reduced.

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

In another embodiment, the Backscatter configuration information may be sent to the second communication device when the Backscatter communication technology needs to transmit and receive data with a different frequency from the first communication technology, so that the second communication device may perform Backscatter communication based on the Backscatter configuration information, and communication collision or interference between the Backscatter communication technology and the first communication technology may be reduced. Optionally, frequency domain configuration information, for example, available frequency points, affected frequency bands, and the like, may be sent to the second communication device when the backscater communication technology needs to transmit and receive data with a frequency different from that of the first communication technology.

Optionally, this embodiment may send the Backscatter configuration information to the second communication device when any of the above conditions is met, for example, send the Backscatter configuration information to the second communication device when an IDC problem between the Backscatter communication technology and the first communication technology is detected, send the Backscatter configuration information to the second communication device when the Backscatter configuration information is changed, send the Backscatter configuration information to the second communication device when the first communication device needs to execute a service related to the first communication technology when Backscatter communication is performed, and the like.

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

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

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

the first communication technology is in a connected state;

In an embodiment, when the first communication device operates as a communication device corresponding to the first communication technology, the first Backscatter operation may not be started or stopped, so that collision or interference between Backscatter communication and transmission related to the first communication technology may be reduced.

In another embodiment, the first Backscatter operation may not be started or stopped when an IDC problem between the Backscatter communication technology and the first communication technology is detected, which may reduce collisions or interference between Backscatter communications and transmissions associated with the first communication technology.

In another embodiment, the first communication device may not start or stop performing the first backscater operation when the first communication device needs to perform a service related to the first communication technology while performing backscater communication, which may reduce the impact of backscater communication on the service related to the first communication technology.

In another embodiment, the first Backscatter operation may not be started or stopped when the first communication technology is in a connected state, which may reduce collisions or interference between Backscatter communications and transmissions associated with the first communication technology.

In another embodiment, the first backscater operation may not be started or stopped in the case where the backscater communication technology requires a different frequency for transceiving data than the first communication technology, which may reduce collisions or interference between the backscater communication and transmissions associated with the first communication technology.

Optionally, the present embodiment may not start or stop performing the first Backscatter operation when any of the above conditions is satisfied, for example, the first Backscatter operation is not started or stopped once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the first Backscatter operation is not started or stopped once the first communication device needs to perform a service related to the first communication technology when Backscatter communication is performed, and the like.

The examples of the present application are illustrated below by way of examples:

example one: the Backscatter control device and the UE supporting the first communication technology such as 3GPP TAT coexist, and the Backscatter communication technology and the first communication technology work in parallel based on FDM.

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

and S1, the Backscatter control equipment sends Backscatter configuration information to a Backscatter tag or a Backscatter terminal under a second condition.

Wherein the Backscatter configuration information comprises at least one of:

frequency Hopping configuration (Frequency Hopping) for indicating a list of available Frequency points;

at least one affected or possibly affected Channel (Channel);

at least one Frequency Band (Frequency Band) that is not available; the frequency band is a frequency band affected or possibly affected by a first communication technology;

at least one unavailable Frequency point (Frequency); the frequency points are frequency points that are or may be affected by the first communication technology.

Interference System Type (Interference System Type); the interfering system type comprises a system type of the first communication technology.

For the first communication technology and the second condition, reference may be made to the foregoing related description, which is not described herein again.

Example two: the Backscatter control device and the UE supporting the first communication technology such as 3GPP TAT coexist, and the Backscatter communication technology and the first communication technology work in parallel based on a TDM mode.

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

and the Backscatter control device sends Backscatter configuration information to a Backscatter tag or a Backscatter terminal under the second condition.

Wherein the Backscatter configuration information comprises at least one of: DRX configuration information, DTX configuration information. The DRX configuration information comprises at least one item of DRX period, backscatter energy collection duration and Backscatter data transceiving duration. The DTX configuration information comprises at least one of a period and a DTX duration of DTX.

Example three: the Backscatter control device and the UE supporting the first communication technology, such as the 3GPP TAT, coexist, and the Backscatter communication technology and the first communication technology operate in non-parallel.

In this example, the Backscatter communication technique does not occur 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 may be preferentially performed.

Specifically, the backscatter communication method of the present embodiment includes:

the Backscatter control device does not start or stop a first Backscatter operation under a first condition, the first Backscatter operation including at least one of:

receiving and transmitting data with a backscater terminal;

and transmitting the carrier wave for the backscater terminal to collect energy.

The first condition may refer to the related description, which is not described herein.

In summary, the technical solution provided in the embodiments of the present application can solve the problem of coexistence in the device between the backscater communication technology and other communication technologies (i.e., the first communication technology), and reduce the collision or interference between the backscater communication and other communication technologies.

Referring to fig. 8, fig. 8 is a flowchart of another backscatter communication method provided by an embodiment of the application, where the method may be executed by a second communication device, as shown in fig. 8, and includes the following steps:

801, receiving Backscatter configuration information from a first communication device by a second communication device;

In this embodiment, after receiving the Backscatter configuration information, the second communication device may perform Backscatter communication based on the Backscatter configuration information, for example, perform backscater energy collection and backscater data transceiving based on the Backscatter configuration information, so as to reduce communication collision or interference between the backscater communication technology and other communication technologies.

It should be noted that, this embodiment is used as an implementation of the second communication device corresponding to the embodiment shown in fig. 4, and specific implementations thereof may refer to relevant descriptions of the embodiment shown in fig. 4 and achieve the same beneficial effects, and are not described herein again to avoid repeated descriptions.

It should be noted that, for implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 4, and details are not described here.

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

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.

It should be noted that, for implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 4, and details are not described herein.

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

a DRX period;

backscater energy collection duration;

and Backscatter data transceiving time.

or alternatively

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

Optionally, the first communication technology comprises at least one of: 3GPP RAT; an air interface; GNSS; ISM band based communication technologies.

Referring to fig. 9, fig. 9 is a flowchart of another backscatter communication method provided by an embodiment of the application, where the method may be executed by a second communication device, and as shown in fig. 9, the method 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 when the third condition is satisfied;

It should be noted that, in some scenarios, the first communication device may also be referred to as a Backscatter Reader (Reader) or a Backscatter control device. The second communication device described above may also be referred to as a Backscatter Tag (Tag) or a passive IoT or backscater terminal. In addition, the second communication device may support other communication technologies, such as NR, LTE, bluetooth, WIFI, GNSS, and the like, in addition to the Backscatter communication technology. I.e. there is an IDC problem within the second communication device.

The Backscatter request message may be used to request the first communication device to communicate configuration information related to the Backscatter of the second communication device. The Backscatter request information is request information determined based on the IDC problem, and for example, it may be understood that the Backscatter request information may be request information determined to avoid the IDC problem. Therein, the IDC problem may also be referred to as IDC interference. Optionally, the Backscatter request information may include, but is not limited to, at least one of an intra-device interference indication, a Backscatter communication status, IDC auxiliary information, and Backscatter configuration preference information.

The third condition may be a condition related to IDC problems, e.g. IDC problems in the second communication device.

In an 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 the Backscatter configuration information to the second communication device, and thus, the second communication device can reduce communication conflict or interference between the Backscatter communication technology and other communication technologies by performing Backscatter communication based on the Backscatter configuration information. For example, the second communication device may report the affected frequency points, affected channels, and the like based on the configuration information of the other communication technologies, and the first communication device may configure available frequency points, available channels, and the like for the second communication device based on the affected frequency points, affected channels, and the like reported by the second communication device.

In another embodiment, the second communication device does not perform the second Backscatter operation if the third condition is satisfied, which may reduce interference of the Backscatter communication technology with other communication technologies.

It should be noted that the above-mentioned not executing the second Backscatter operation can be understood as at least one of the following: the second backscater operation is not started or started; and stopping executing the second Backscatter operation in the case that the second Backscatter operation is in the process of being executed.

It should be noted that, in the case that the Backscatter energy collection by the second communication device is to collect energy by using a radio frequency signal transmitted by a device other than the first communication device or a radio frequency signal in the environment, the second Backscatter operation may only include data transceiving with the first communication device. In the case where Backscatter energy collection by the second communication device is to collect energy using a radio frequency signal transmitted by the first communication device, the second Backscatter operation may include data transceiving with the first communication device and energy collection based on a carrier transmitted by the first communication device.

In the backscattering communication method provided by the embodiment of the application, the second communication device sends the Backscatter request information determined based on the IDC problem to the second communication device, so that the first communication device can send the Backscatter configuration information to the second communication device based on the Backscatter request information, and because the IDC problem is considered in the Backscatter request information, the Backscatter communication performed by the second communication device based on the Backscatter configuration information can reduce communication conflict 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 satisfied, which may reduce communication collision or interference between the Backscatter communication technology and other communication technologies.

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

In this embodiment, the first communication technology may include, but is not limited to, at least one of the following: 3GPP RAT, e.g., NR, LTE, etc.; GNSS, such as GPS, BDS, GLONASS, GALILEO or NANIC, etc.; communication technologies based on ISM bands, such as Bluetooth (Bluetooth), WIFI, NFC, and the like; an air interface, such as a Uu interface, a SideLink (SideLink) interface, etc.

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

an intra-device interference Indicator (IDC Indicator);

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

In this embodiment, the intra-device interference indication is used to indicate that the second communication device has intra-device interference. The Backscatter communication state is used to indicate a state where the second communication device performs Backscatter communication, for example, a data transmission suspended state, an unresponsive state, and the like. The IDC auxiliary information is used to indicate IDC related information, such as affected frequency points, affected channels, and interfering system types. The Backscatter configuration preference information may include, for example, preference information related to a time domain configuration.

Optionally, the IDC assistance information includes 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.

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 unusable frequency bands may also be referred to as affected frequency bands and may include frequency bands that are or may be affected. The unavailable frequency bins may also be referred to as affected frequency bins and may include frequency bins that are or may be affected.

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

backscater energy collection duration;

backscater data receiving and sending time;

DTX preference information;

DRX preference information.

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

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

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

In an embodiment, for example, as shown in fig. 5, a DRX Cycle (DRX Cycle) covers at least DRX On Duration and backscater data transmission and reception Duration corresponding to the first communication technology.

Taking the example that the second communication device supports the first communication technology and the backscater communication technology at the same time, the backscater energy collection may collect energy by using radio frequency signals transmitted by devices other than the first communication device or radio frequency signals in the environment, and in this case, there is no communication collision or interference between the backscater energy collection process and the first communication technology, so that only the backscater data transceiving time may be controlled to be located in a non-transmission interval of the first communication technology, for example, a DRX off interval, that is, a DRX cycle at least includes a DRX On Duration and a backscater data transceiving Duration corresponding to the first communication technology, which may reduce collision or interference between the backscater data transceiving and the first communication technology.

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

Taking the example that the second communication device supports the first communication technology and the Backscatter communication technology at the same time, the Backscatter energy collection may collect energy by using a radio frequency signal transmitted by the first communication device, and in this case, the Backscatter data transceiving time and the Backscatter energy collection time may be controlled to be both located in a non-transmission interval of the first communication technology, for example, a DRX off interval, that is, a DRX cycle at least includes a DRX OnDuration, a Backscatter data transceiving duration, and a Backscatter energy collection duration corresponding to the first communication technology, so that collisions or interferences between the Backscatter data transceiving and the Backscatter energy collection and the first communication technology may be reduced.

Optionally, in order to further reduce collision or interference between Backscatter data transceiving and data transceiving of the first communication technology, the Duration of data transceiving of the first communication technology may be counted in advance, and the DRX Cycle (DRX Cycle) may be greater than or equal to the sum of the DRX On Duration corresponding to the first communication technology, the preset Duration of data transceiving of the first communication technology, and the Duration of data transceiving of the Backscatter.

Optionally, the backscater communication status includes 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 responding to the command of the first communication device.

In this embodiment, when the second communication device is in the data transmission suspended state, the second communication device suspends data transmission. And under the condition that the second communication equipment is in the non-response state, the second communication equipment does not respond to the command of the first communication equipment.

Optionally, the sending, by the second communication device, backscatter request information to the first communication device includes:

the second communication equipment sends backscater 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 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 IDC problems between the backscater communication technology and the first communication technology;

the backscater request information changes;

the second communication device needs to execute the service related to the first communication technology under the condition of backscater communication;

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

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

In this embodiment, the second communication device simultaneously operates as a communication device corresponding to a Backscatter communication technology and a communication device corresponding to a first communication technology, and it can be understood that the second communication device needs to communicate by using the backscater communication technology and communicate by using the first communication technology.

In an embodiment, backscatter request information may be sent to the first communication device when the second communication device simultaneously operates as a communication device corresponding to a Backscatter communication technology and a communication device corresponding to a first communication technology, so that the first communication device sends backscater configuration information to the second communication device for backscater communication based on the Backscatter request information, and communication collision or interference between the Backscatter communication technology and the first communication technology may be reduced.

In another embodiment, the Backscatter request information may be sent to the first communication device when the IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device sends Backscatter configuration information to the second communication device for Backscatter communication based on the Backscatter request information, and thus, unnecessary sending of the Backscatter request information may be reduced while communication collision or interference between the Backscatter communication technology and the first communication technology is reduced, and resources are saved.

In another embodiment, the Backscatter request information may be sent to the first communication device when the Backscatter request information changes, so that the first communication device may resend the Backscatter configuration information to the second communication device for Backscatter communication based on the updated Backscatter request information, and communication collision or interference between the Backscatter communication technology and the first communication technology is reduced.

In another embodiment, backscatter request information may be sent to the first communication device when the second communication device needs to perform a service related to the first communication technology when performing Backscatter communication, so that the first communication device performs Backscatter communication based on the Backscatter request information, and communication collision or interference between the Backscatter communication technology and the first communication technology may be reduced.

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

In another embodiment, backscatter request information may be sent to the first communication device when the Backscatter communication technology needs to transmit and receive data at a different frequency from the first communication technology, so that the first communication device sends Backscatter configuration information to the second communication device for Backscatter communication based on the Backscatter request information, thereby reducing communication collision or interference between the Backscatter communication technology and the first communication technology. Optionally, the Backscatter communication technology may send, to the first communication device, frequency domain related information, for example, an available frequency point, an affected frequency band, and the like, when the Backscatter communication technology needs to transmit and receive data with a different frequency from the first communication technology.

Optionally, the present embodiment may send the Backscatter request information to the first communication device when any of the above conditions is met, for example, send the Backscatter request information to the first communication device when an IDC problem between the Backscatter communication technology and the first communication technology is detected, send the Backscatter request information to the first communication device when the Backscatter request information is changed, send the Backscatter request information to the first communication device when the second communication device needs to perform a service related to the first communication technology when performing Backscatter communication, and the like.

Optionally, 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 issue 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;

In an embodiment, when the second communication device operates as a communication device corresponding to the first communication technology, the second Backscatter operation may not be started or stopped, so that collisions or interference between transmissions related to the first communication technology may be reduced.

In another embodiment, the second Backscatter operation may not be started or stopped when an IDC problem between the Backscatter communication technology and the first communication technology is detected, which may reduce collisions or interference between Backscatter communications and transmissions associated with the first communication technology.

In another embodiment, when the second communication device needs to perform a service related to the first communication technology while performing Backscatter communication, the second Backscatter operation may not be started or stopped, so that the impact of Backscatter communication on the service related to the first communication technology may be reduced.

In another embodiment, the second Backscatter operation may not be started or stopped when the first communication technology is in a connected state, which may reduce collisions or interference between Backscatter communications and transmissions associated with the first communication technology.

In another embodiment, the second Backscatter operation may not be started or stopped when the Backscatter communication technology requires a different frequency for transceiving data than the first communication technology, which may reduce collisions or interference between Backscatter communications and transmissions associated with the first communication technology.

Optionally, the present embodiment may not start or stop performing the second Backscatter operation when any of the above conditions is satisfied, for example, the second Backscatter operation is not started or stopped once an IDC problem between the Backscatter communication technology and the first communication technology is detected, the second Backscatter operation is not started or stopped once the second communication device needs to perform a service related to the first communication technology when Backscatter communication is performed, and the like.

Optionally, the method may further include:

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.

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

example one: the Backscatter terminal and the UE supporting the first communication technology such as 3GPP TAT coexist, and the Backscatter communication technology and the first communication technology work in parallel based on FDM mode.

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

and the backscater terminal sends backscater request information to the backscater control equipment under the fourth condition.

Wherein the Backscatter request information comprises at least one of:

at least one affected or potentially affected Channel (Channel);

The first communication technology and the fourth condition can refer to the related description, and are not described herein again.

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

and the Backscatter terminal sends Backscatter request information to the Backscatter control equipment under the fourth condition.

Wherein the Backscatter request information comprises at least one of the following information:

an intra-device interference indication;

backscater communication state;

backscatter configures preference information.

Wherein the Backscatter configuration preference information comprises at least one of the following items:

backscater energy collection duration;

the backscater data receiving and sending time length;

DTX preference information;

DRX preference information.

Example three: the Backscatter terminal and the UE supporting the first communication technology such as 3GPP TAT coexist, and the Backscatter communication technology and the first communication technology work in a non-parallel mode.

the backscater terminal does not start or stop a second backscater operation under a third condition, the second backscater operation including at least:

receiving and transmitting data with backscater control equipment;

or

And the Backscatter control device receives and transmits data and collects energy based on the carrier transmitted by the Backscatter control device.

The third condition can refer to the related description, and is not described herein.

In summary, the technical solution provided in the embodiments of the present application can solve the problem of in-device coexistence between the backscater communication technology and another communication technology (i.e., the first communication technology), and reduce collision or interference between backscater communication and transmissions related to the first communication technology.

Referring to fig. 10, fig. 10 is a flowchart of another backscatter communication method provided by an embodiment of the application, where the method may be executed by a first communication device, and as shown in fig. 10, the method includes the following steps:

1001, receiving Backscatter request information from a second communication device by a first communication device;

In this embodiment, after receiving 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 second communication device may perform Backscatte communication based on the Backscatter configuration information, for example, perform backscater energy collection and backscater data transceiving based on the Backscatter configuration information, so as to reduce communication collision or interference between the backscater communication technology and other communication technologies.

It should be noted that, this embodiment is used as an implementation of the first communication device corresponding to the embodiment shown in fig. 9, and specific implementations thereof may refer to relevant descriptions of the embodiment shown in fig. 9 and achieve the same beneficial effects, and are not described herein again to avoid repeated descriptions.

Optionally, the second communication device supports a 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.

It should be noted that, for implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 9, and details are not described herein.

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

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

It should be noted that, for implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 9, and details are not described here.

Optionally, the IDC assistance information includes 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.

backscater energy collection duration;

backscater data receiving and sending 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;

Optionally, the backscater communication status includes at least one of:

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

Optionally, the method further comprises:

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

It should be noted that, in the backscatter communication method provided in the embodiment of the present application, the execution subject may be 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, a backscatter communication method performed by a backscatter communication apparatus is taken as an example, and the backscatter communication apparatus provided in the embodiment of the present application is described.

Referring to fig. 11, fig. 11 is a structural diagram of a backscatter communication device according to an embodiment of the present application, and as shown in fig. 11, the backscatter communication device 1100 includes:

a first sending module 1101, configured to send Backscatter configuration information to the second communication device or not execute a first Backscatter operation if a first condition is satisfied;

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;

Optionally, the Backscatter communications device supports a Backscatter communications technology and a first communications technology, the IDC issue being an IDC issue between the Backscatter communications technology and the first communications technology.

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

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.

Optionally, in a case that the IDC problem is an IDC problem between a backscater communication technology and a first communication technology, the interfering system type includes a system type of the first communication technology, the at least one affected 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 band includes at least one frequency band affected by the first communication technology.

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

a DRX period;

backscater energy collection duration;

the backscater data receiving and sending time length.

or alternatively

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

Optionally, the first sending module is specifically configured to:

transmitting Backscatter configuration information to the second communication equipment under the condition that a second condition is met;

wherein the second condition comprises at least one of:

the backscattering communication device simultaneously works as communication equipment corresponding to the Backscatter communication technology and communication equipment corresponding to the first communication technology;

the Backscatter configuration information changes;

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

the Backscatter communications device requiring Backscatter communications when the first communications technology is in a connected state;

Optionally, the first condition comprises at least one of:

the backscatter communication device operates as a communication device corresponding to the first communication technology;

the first communication technology is in a connected state;

Optionally, 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.

The backscatter communication apparatus in the embodiment of the present application may be an apparatus, an apparatus having an operating system, or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal device. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the type of the terminal device 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (teller machine), a self-service machine (kiosk), or the like, and the embodiment of the present application is not limited in particular.

The backscatter communication apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 4, and achieve the same technical effect, and is not described here again to avoid repetition.

Referring to fig. 12, fig. 12 is a structural diagram of a backscatter communication device according to an embodiment of the present application, and as shown in fig. 12, a backscatter communication device 1200 includes:

a first receiving module 1201, configured to receive Backscatter configuration information from a first communication device;

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

wherein the first 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;

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

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

The backscatter communication apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 8, and achieve the same technical effect, and is not described here again to avoid repetition.

Referring to fig. 13, fig. 13 is a block diagram of a backscatter communication device according to an embodiment of the application, and as shown in fig. 13, a backscatter communication device 1300 includes:

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

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

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

Optionally, the IDC assistance information includes 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.

backscater energy collection duration;

backscater data receiving and sending time;

DTX preference information;

DRX preference information.

Optionally, the backscater communication status includes at least one of:

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

a non-responsive state indicating that the backscatter communication means is not responsive to a command by the first communication device.

Optionally, the second sending module is specifically configured to:

transmitting Backscatter request information to the first communication device under the condition that a fourth condition is met;

wherein the fourth condition comprises at least one of:

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

the Backscatter request information changes;

the backscattering communication device needs to perform Backscatter communication when the first communication technology is in a connection state;

Optionally, the third condition comprises at least one of:

the first communication technology is in a connected state;

Optionally, the apparatus further comprises:

a second receiving module, configured to receive first configuration information from the first communication device; wherein the first configuration information is used for configuring whether the Backscatter request information is allowed to be sent by the Backscatter communication device.

The backscatter communication apparatus in the embodiment of the present application may be an apparatus, an apparatus having an operating system, or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal device. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above listed types of the terminal device 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (TV), or a kiosk, and the embodiments of the present application are not limited in particular.

The backscatter communication apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 9, and achieve the same technical effect, and is not described here again to avoid repetition.

Referring to fig. 14, fig. 14 is a structural diagram of a backscatter communication device according to an embodiment of the present application, and as shown in fig. 14, a backscatter communication device 1400 includes:

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

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

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

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

The backscatter communication apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 10, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 15, an embodiment of the present application further provides a communication device 1500, which includes a processor 1501, a memory 1502, and a program or an instruction stored in the memory 1502 and executable on the processor 1501, for example, when the communication device 1500 is a first communication device, the program or the instruction is executed by the processor 1501 to implement the processes of the first communication device side backscatter communication method embodiment, and the same technical effect can be achieved. When the communication device 1500 is a second communication device, the program or the instruction is executed by the processor 1501 to implement the processes of the second communication device side backscatter communication method embodiment described above, and the same technical effect can be achieved, and details are not described here to avoid repetition.

The embodiment of the application further provides a first communication device, which comprises a processor and a communication interface, wherein the communication interface is used for sending backscattering Backscatter configuration information to a second communication device or not executing a 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. The first communication device embodiment corresponds to the first communication device side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the first communication device embodiment, and the same technical effects can be achieved. Specifically, fig. 16 is a schematic hardware configuration diagram of a first communication device for implementing the embodiment of the present application.

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

Those skilled in the art will appreciate that the first communication device 1600 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 1610 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The first communication device structure shown in fig. 16 does not constitute a limitation of the first communication device, and the first communication device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description thereof is omitted.

It should be understood that in the embodiment of the present application, the input Unit 1604 may include a Graphics Processing Unit (GPU) 16041 and a microphone 16042, and the Graphics processor 16041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. 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 referred to as a touch screen. The touch panel 16071 may include two parts of a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment, the radio frequency unit 1601 receives downlink data from a network device and then processes the downlink data in the processor 1610; in addition, the uplink data is sent to the network side equipment. In general, 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 may be used to store software programs or instructions as well as various data. The memory 1609 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1609 may include a high-speed random access Memory, and may also include a nonvolatile Memory, which may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1610 may include one or more processing units; alternatively, processor 1610 may integrate an application processor, which handles primarily the operating system, user interface, and applications or instructions, and a modem processor, which handles primarily wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 1610.

The radio frequency unit 1601 is configured to send backscattering Backscatter configuration information to the second communication device or not perform the first Backscatter operation when a first condition is satisfied;

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;

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

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.

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

a DRX period;

backscater energy collection duration;

and Backscatter data transceiving time.

or alternatively

Optionally, the radio frequency unit 1601 is specifically configured to:

wherein the second condition comprises at least one of:

the backscater configuration information changes;

Optionally, the first condition comprises at least one of:

the first communication device operates as a communication device corresponding to the first communication technology;

the first communication technology is in a connected state;

Optionally, 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; and (4) a communication technology based on industrial scientific medical ISM frequency bands.

The embodiment of the application also provides second communication equipment, which comprises a processor and a communication interface, wherein the communication interface is used for receiving backscater 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. The second communication device embodiment corresponds to the second communication device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the second communication device embodiment and can achieve the same technical effect.

Specifically, the embodiment of the 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, a baseband device 173. The antenna 171 is connected to a radio frequency device 172. In the uplink direction, the rf device 172 receives information via 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 transmitted and transmits the processed information to the rf device 172, and the rf device 172 processes the received information and transmits the processed information via the antenna 171.

The above-mentioned band processing means may be located in the baseband apparatus 173, and the method performed by the second communication device in the above embodiment may be implemented in the baseband apparatus 173, where the baseband apparatus 173 includes the processor 174 and the memory 175.

The baseband apparatus 173 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 17, wherein one of the chips, for example, the processor 174, is connected to the memory 175 to call up a program in the memory 175 to execute the operation of the second communication device shown in the above method embodiment.

The baseband device 173 may further include a network interface 176 for exchanging information with the rf device 172, such as a Common Public Radio Interface (CPRI).

Specifically, the second communication device according to the embodiment of the present invention further includes: the instructions or programs stored in the memory 175 and capable of being executed on the processor 174, the processor 174 invokes the instructions or programs in the memory 175 to execute the method executed by each module shown in fig. 12, and achieve the same technical effect, which is not described herein for avoiding repetition.

The embodiment of the application further provides a second communication device, which comprises a processor and a communication interface, wherein the communication interface is used for sending Backscatter request information to the first communication device or not executing a second Backscatter operation under the condition that a third 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 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. The second communication device embodiment corresponds to the second communication device side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the second communication device embodiment and can achieve the same technical effects. Specifically, fig. 16 is a schematic hardware structure diagram of a second communication device for implementing the embodiment of the present application.

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

Those skilled in the art will appreciate that the second communication device 1800 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to the processor 1810 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The second communication device structure shown in fig. 18 does not constitute a limitation of the second communication device, and the second communication device may include more or less components than those shown, or combine some components, or arrange different components, and thus will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1804 may include a Graphics Processing Unit (GPU) 18041 and a microphone 18042, and the Graphics Processing Unit 18041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. 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. A touch panel 18071, also referred to as a touch screen. The touch panel 18071 may include two parts of a touch detection device and a touch controller. Other input devices 18072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1801 receives downlink data from a network side device and then processes the downlink data with the processor 1810; in addition, the uplink data is sent to the network side equipment. 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 may 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 instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1809 may include a high-speed random access Memory, and may further include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1810 may include one or more processing units; optionally, the processor 1810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs or instructions, etc., and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be understood that the modem processor may not be integrated into the processor 1810.

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

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

an intra-device interference indication;

backscater communication state;

IDC auxiliary information;

backscatter configures preference information.

Optionally, the IDC assistance information includes 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.

backscater energy collection duration;

the backscater data receiving and sending time length;

DTX preference information;

DRX preference information.

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.

Optionally, the Backscatter communication state includes at least one of:

a data transfer suspended state indicating that the second communication device suspends data transfer;

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

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;

the backscater request information changes;

Optionally, the third condition comprises at least one of:

the first communication technology is in a connected state;

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

receiving first configuration information from the first communication device; wherein the first configuration information is used for configuring whether to allow the second communication device to send the backscater request information.

The embodiment of the application further provides a first communication device, which comprises a processor and a communication interface, wherein the communication interface is used for receiving backscater request information from a second communication device; 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. The first communication device embodiment corresponds to the first communication device method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the first communication device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides a first communication device. As shown in fig. 19, the first communication device 1900 includes: antenna 191, radio frequency device 192, baseband device 193. Antenna 191 is connected to rf device 192. In the uplink direction, rf device 192 receives information via antenna 191 and sends the received information to baseband device 193 for processing. In the downlink direction, the baseband device 193 processes information to be transmitted and transmits the processed information to the rf device 192, and the rf device 192 processes the received information and transmits the processed information via the antenna 191.

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

The baseband device 193 may include at least one baseband board, for example, a plurality of chips are disposed on the baseband board, as shown in fig. 19, wherein one chip, for example, the processor 194, is connected to the memory 195 to call the program in the memory 195 to perform the first communication device operation shown in the above method embodiment.

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).

Specifically, the first communication device according to the embodiment of the present invention further includes: the instructions or programs stored in the memory 195 and capable of being executed on the processor 194, the processor 194 invokes the instructions or programs in the memory 195 to perform the method executed by each module shown in fig. 14, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when executed by a processor, the program or the instruction implements each process of the above-mentioned first communication device side backscatter communication method embodiment, or implements each process of the above-mentioned second communication device side backscatter communication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The processor is a processor in the first communication device described in the foregoing embodiment, or a processor in the second communication device described in the foregoing embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the first communication device side backscatter communication method embodiment or each process of the second communication device side backscatter communication method embodiment, where the same technical effect can be achieved, and details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g., a mobile phone, a computer, a server, an air conditioner, or a network-side device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method of backscatter communication, comprising:

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

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 Backscatter configuration information changes;

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

the first communication technology is in a connected state;

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 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;

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;

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

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 Backscatter request information changes;

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

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

the first communication technology is in a connected state;

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:

27. A method of backscatter communication, comprising:

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:

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:

34. A backscatter communications device, comprising:

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;

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:

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.