Backscatter communication method, apparatus, and communication device

Abstract

The application discloses a backscatter communication method, device and equipment, and belongs to the technical field of communication. The backscatter communication method comprises the following steps: a first communication device sends backscatter configuration information to a second communication device or does not perform a first backscatter operation under the condition that a first condition is met; wherein the second communication device is used for modulating signals by using radio frequency signals transmitted by a device different from the second communication device or radio frequency signals in the environment to transmit information, and the first communication device is used for receiving radio frequency signals reflected by the second communication device to receive information; the backscatter configuration information is configuration information determined based on an in-device coexistence (IDC) problem; and the first backscatter operation comprises at least one of the following: data transceiving between the second communication device; and carrier transmission for the second communication device to collect energy.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a backscatter communication method and device and a communication device. BACKGROUND

[0002] With the development of electronic technology, a communication device can support multiple types of communication technologies at the same time, such as 3rd Generation Partnership Project (3GPP) communication technologies (such as New Radio (NR) / Long Term Evolution (LTE)), Global Navigation Satellite System (GNSS), Backscatter Communication (BSC) technology, etc. For a communication device that supports multiple types of communication technologies at the same time, there may be an in-device coexistence (IDC) problem, for example, the transmission of NR may interfere with the reception of Backscatter communication. However, in the prior art, there is no relevant solution for how to communicate in the case where there is an in-device coexistence problem between Backscatter communication technology and other communication technologies (such as NR / LTE, etc.) in a communication device. SUMMARY

[0003] Embodiments of the present application provide a backscatter communication method, device and communication device, which can provide a backscatter communication mode in the case where there is an in-device coexistence problem between Backscatter communication technology and other communication technologies (such as NR / LTE, etc.) in a communication device, so as to reduce the communication conflict or interference between Backscatter communication technology and other communication technologies in the communication device.

[0004] In a first aspect, a backscatter communication method is provided, which comprises:

[0005] The first communication device sends backscatter configuration information to the second communication device or does not perform a first backscatter operation in the case where a first condition is met;

[0006] The second communication device is configured to modulate a signal to transmit information using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information.

[0007] The Backscatter configuration information is configuration information determined based on an IDC problem, and the first Backscatter operation includes at least one of the following: data transceiving with the second communication device; carrier transmission for energy collection by the second communication device.

[0008] In a second aspect, a Backscatter communication method is provided, and the method includes:

[0009] The second communication device receives Backscatter configuration information from the first communication device.

[0010] The second communication device is configured to modulate a signal using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information; and the Backscatter configuration information is configuration information determined based on an IDC problem.

[0011] In a third aspect, a Backscatter communication method is provided, and the method includes:

[0012] The second communication device sends Backscatter request information to the first communication device or does not perform a second Backscatter operation if a third condition is met.

[0013] The second communication device is configured to modulate a signal using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information.

[0014] The Backscatter request information is request information determined based on an IDC problem; and 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.

[0015] In a fourth aspect, a Backscatter communication method is provided, and the method includes:

[0016] The first communication device receives Backscatter request information from the second communication device.

[0017] The second communication device is configured to modulate a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the second communication device to receive the information. The Backscatter request information is determined based on an IDC problem.

[0018] In a fifth aspect, a Backscatter communication device is provided, and the device includes:

[0019] A first sending module is configured to send Backscatter configuration information to a second communication device or not perform a first Backscatter operation if a first condition is met.

[0020] The second communication device is configured to modulate a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the Backscatter communication device is configured to receive the radio frequency signal reflected by the second communication device to receive the information.

[0021] The Backscatter configuration information is determined based on an IDC problem, and the first Backscatter operation includes at least one of the following: data transceiving between the second communication device and the Backscatter communication device; and carrier emission for the second communication device to collect energy.

[0022] In a sixth aspect, a Backscatter communication device is provided, and the device includes:

[0023] A first receiving module is configured to receive Backscatter configuration information from a first communication device.

[0024] The Backscatter communication device is configured to modulate a radio frequency signal emitted by a device different from the Backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the Backscatter communication device to receive the information. The Backscatter configuration information is determined based on an IDC problem.

[0025] In a seventh aspect, a Backscatter communication device is provided, and the device includes:

[0026] A second sending module is configured to send Backscatter request information to a first communication device or not perform a second Backscatter operation if a third condition is met.

[0027] The backscatter communication device is configured to modulate a signal using a radio frequency signal transmitted by a device different from the backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the backscatter communication device to receive the information.

[0028] The Backscatter request information is request information determined based on an IDC problem, and the second Backscatter operation includes data transceiving with the first communication device or includes data transceiving with the first communication device and energy collection based on a carrier transmitted by the first communication device.

[0029] In an eighth aspect, a backscatter communication device is provided, which includes:

[0030] A third receiving module configured to receive Backscatter request information from a second communication device.

[0031] The second communication device is configured to modulate a signal using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the backscatter communication device is configured to receive the radio frequency signal reflected by the second communication device to receive the information; and the Backscatter request information is request information determined based on an IDC problem.

[0032] In a ninth aspect, a first communication device is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect or the steps of the method according to the fourth aspect.

[0033] In a tenth aspect, a first communication device is provided, which includes a processor and a communication interface, and the communication interface is configured to send backscatter Backscatter configuration information to a second communication device or not to perform a first Backscatter operation when a first condition is met.

[0034] The second communication device is configured to modulate a signal using a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the second communication device to receive the information.

[0035] 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 the following: data transceiving with the second communication device; carrier transmission for the second communication device to collect energy;

[0036] Or

[0037] The communication interface is configured to receive Backscatter request information from the second communication device;

[0038] The second communication device is configured to modulate a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information; and the Backscatter request information is request information determined based on an IDC problem.

[0039] In a eleventh aspect, a second communication device is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the second aspect or the steps of the method according to the third aspect.

[0040] In a twelfth aspect, a second communication device is provided, which includes a processor and a communication interface, and the communication interface is configured to receive Backscatter configuration information from a first communication device by the second communication device;

[0041] The second communication device is configured to modulate a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information; and the Backscatter configuration information is configuration information determined based on an IDC problem.

[0042] Or

[0043] The communication interface is configured to send Backscatter request information to the first communication device or not to perform a second Backscatter operation if a third condition is met;

[0044] The second communication device is configured to modulate a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information;

[0045] The Backscatter request information is request information determined based on an IDC problem; 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 collecting energy based on a carrier transmitted by the first communication device.

[0046] In a thirteenth aspect, a readable storage medium is provided, and the readable storage medium stores a program or an instruction, which is executed by a processor to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect.

[0047] In a fourteenth aspect, a chip is provided, and the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect.

[0048] In a fifteenth aspect, a computer program or a program product is provided, and the computer program or the program product is stored in a non-volatile storage medium, and the program or the program product is executed by at least one processor to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect.

[0049] In the embodiments of the present application, the first communication device sends Backscatter configuration information determined based on an IDC problem to the second communication device, and since the Backscatter configuration information considers the IDC problem, Backscatter communication based on the Backscatter configuration information can reduce communication conflict or interference between the Backscatter communication technology and other communication technologies. In addition, the first communication device does not perform at least one of data transceiving with the second communication device and transmitting a carrier for the second communication device to collect energy in the case of meeting the first condition, that is, by not performing at least part of the operations related to Backscatter communication to reduce the interference of the Backscatter communication technology on other communication technologies or avoid the interference of other communication technologies on the Backscatter communication technology. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0051] Figure 2 is a schematic diagram of a Backscatter communication system provided by an embodiment of the present application;

[0052] Figure 3 is a schematic diagram of Backscatter communication between a mobile phone and smart glasses provided by an embodiment of the present application;

[0053] Figure 4 is a flowchart of a Backscatter communication method provided by an embodiment of the present application;

[0054] Figure 5 is a schematic diagram of a DRX cycle provided by an embodiment of the present application;

[0055] Figure 6 is a schematic diagram of another DRX cycle provided by an embodiment of the present application;

[0056] Figure 7 is a flowchart of another Backscatter communication method provided by an embodiment of the present application;

[0057] Figure 8 is a flowchart of another Backscatter communication method provided by an embodiment of the present application;

[0058] Figure 9 is a flowchart of another Backscatter communication method provided by an embodiment of the present application;

[0059] Figure 10 is a flowchart of another Backscatter communication method provided by an embodiment of the present application;

[0060] Figure 11 is a structural diagram of a Backscatter communication apparatus provided by an embodiment of the present application;

[0061] Figure 12 is a structural diagram of another Backscatter communication apparatus provided by an embodiment of the present application;

[0062] Figure 13 is a structural diagram of another Backscatter communication apparatus provided by an embodiment of the present application;

[0063] Figure 14 is a structural diagram of another Backscatter communication apparatus provided by an embodiment of the present application;

[0064] Figure 15 is a structural diagram of a communication device provided by an embodiment of the present application;

[0065] Figure 16 is a structural diagram of a first communication device provided by an embodiment of the present application;

[0066] Figure 17 is a structural diagram of a second communication device provided by an embodiment of the present application;

[0067] Figure 18 is a structural diagram of another second communication device provided by an embodiment of the present application;

[0068] Figure 19 is a structural diagram of another first communication device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0069] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0070] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents a "or" relationship between the front and rear associated objects.

[0071] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0072] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal device 11, a network side device 12 and a Backscatter communication device 13. The terminal device 11 can also be referred to as a terminal or a user equipment (UE). The terminal device 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palm computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. The wearable device includes a smart watch, a bracelet, a headset, glasses, etc. 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 can be a base station or a core network. The base station can 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 home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited. The Backscatter communication device 13 can be a communication device supporting a Backscatter communication technology, such as a Backscatter tag or a Backscatter reader, etc.

[0073] It should be noted that the first communication device of the embodiments of the present application can be a terminal device 11 supporting a Backscatter communication technology, and the second communication device can be a Backscatter communication device 13. Alternatively, the second communication device of the embodiments of the present application can be a terminal device 11 supporting a Backscatter communication technology, and the first communication device can be a Backscatter communication device 13.

[0074] For the convenience of understanding, the following describes the related content involved in the embodiments of the present application:

[0075] I. Backscatter Communication (BSC)

[0076] Backscatter communication refers to a communication device using other devices or environmental radio frequency signals to modulate signals to transmit its own information. A backscatter communication terminal device (BSC UE) can be a tag in traditional radio frequency identification (RFID) or a passive Internet of Things terminal (Passive-IoT).

[0077] Backscatter technology is a passive or low-energy technology, and its technical feature is that it can change the characteristics of received environmental radio frequency signals, such as phase or amplitude information, to complete the transmission of its own signals, and achieve extremely low power consumption or zero power consumption information transmission. For example, as shown in FIG. 1, a backscatter transmitter transmits information to a reader through radio frequency signals emitted by the reader or environmental radio frequency signals. Figure 2

[0078] From the power supply mode, the BSC UE can be divided into three modes: passive, semi-passive, and active.

[0079] For a passive BSC UE, the BSC UE first obtains energy from external electromagnetic waves (energy harvesting), and supplies the internal channel coding and modulation circuit modules to work, and at the same time, communicates through the reflection and scattering of radio frequency signals, thereby realizing zero power consumption communication.

[0080] For a semi-passive BSC UE, its internal circuit modules are powered by its own battery, and communicate through the reflection and scattering of radio frequency signals. Since the internal battery is only used for simple internal circuit module work such as channel coding and modulation, the power consumption is very low, and therefore the battery life of the BSC UE can reach more than ten years. External radio frequency signals can all be used for backscatter communication, and there is no need to store part of the energy for power supply.

[0081] ​For active BSC UE, the built-in battery is not only used for simple internal circuit work such as channel coding and modulation, but also for circuit work such as power amplifier (PA) and low noise amplifier (LNA), so that more complex signal modulation and demodulation of backscatter communication can be realized.

[0082] For example, as Figure 3 A Backscatter use scenario is shown, that is, a scenario in which a mobile phone as a Backscatter control device (Reader) is connected with smart glasses as a Backscatter terminal device (Tag), the smart glasses collect the energy of the signal transmitted by the mobile phone, and transmit the information b(t) of the Tag by reflecting the signal x(t) transmitted by the mobile phone.

[0083] II. In-device coexistence (IDC)

[0084] The same device can simultaneously support new radio (NR) / long term evolution (LTE), and global satellite navigation system (GNSS) (for example, global positioning system (GPS), global navigation satellite system (GLONASS), BeiDou navigation satellite system (BDS), Galileo satellite navigation system (GALILEO), or Indian constellation navigation system (NAVIC), wireless local area network (WLAN), and bluetooth, and other functions.

[0085] Among them, the in-device coexistence problem can refer to the interference problem on multiple subframes or time slots, etc. in the device. At present, the NR / LTE UE has supported IDC solutions with other technologies such as GNSS, WLAN, and Bluetooth, for example, a frequency division multiplexing (FDM) solution.

[0086] Optionally, the UE can report IDC assistance information according to the indication of the network, and the IDC assistance information can include the frequency point being affected or possibly affected and the victim system type.

[0087] wherein the victim system type can be used to indicate a list of victim system types of which NR causes IDC interference when configuring a set of uplink (UL) carriers (Carrier Aggregation, CA). The values gps, glonass, bds, galileo and navIC represent the types of GNSS. The value WLAN represents WLAN, and the value Bluetooth represents Bluetooth.

[0088] The backscatter communication method provided by the embodiments of the present application will be described in detail in combination with the accompanying drawings, some embodiments and application scenarios.

[0089] Please refer to Figure 4 , Figure 4 is a flowchart of a backscatter communication method provided by the embodiments of the present application, which can be executed by a first communication device, as shown in Figure 4 , including the following steps:

[0090] Step 401, the first communication device sends backscatter configuration information to the second communication device or does not perform the first backscatter operation in the case of meeting the first condition;

[0091] wherein the second communication device is configured to modulate signals by using radio frequency signals emitted by a device different from the second communication device or radio frequency signals in the environment to transmit information, and the first communication device is configured to receive radio frequency signals reflected by the second communication device to receive information;

[0092] The backscatter configuration information is configuration information determined based on IDC problems, and the first backscatter operation includes at least one of the following: data transceiving between the second communication device; carrier emission for the second communication device to collect energy.

[0093] It should be noted that in some scenarios, the first communication device can also be referred to as a Backscatter reader or a Backscatter control device. The second communication device can also be referred to as a Backscatter tag or a passive IoT or a Backscatter terminal. In addition, at least one of the first communication device and the second communication device can support other communication technologies in addition to the Backscatter communication technology, such as NR, LTE, Bluetooth, WIFI, GNSS, etc. That is, at least one of the first communication device and the second communication device has an IDC problem.

[0094] The Backscatter configuration information is configuration information determined based on the IDC problem. For example, it can be understood that the Backscatter configuration information can be configuration information determined to avoid the IDC problem. The IDC problem can also be referred to as IDC interference. Optionally, the Backscatter configuration information can include frequency division multiplexing (FDM) related parameters (such as available frequency points, affected frequency points, etc.), time division multiplexing (TDM) related parameters (such as discontinuous transmission (DTX) configuration information, discontinuous reception (DRX) configuration information, etc.), and the like.

[0095] The first condition can be a condition related to the IDC problem, for example, at least one of the first communication device and the second communication device has an IDC problem.

[0096] In an embodiment, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device to solve the IDC problem between the Backscatter communication technology and other communication technologies. The following examples are used to illustrate this embodiment:

[0097] Example 1: In the case where the first communication device has an IDC problem between the Backscatter communication technology and other communication technologies, the first communication device sends the Backscatter configuration information determined based on the IDC problem to the second communication device. In this way, the first communication device performs Backscatter communication based on the Backscatter configuration information, which can reduce communication conflicts or interference between the Backscatter communication technology and other communication technologies.

[0098] For example, the first communication device can configure available frequency points, affected frequency points, available channels, etc. for the second communication device based on the configuration information of the other communication technology.

[0099] Example Two: In the case that the IDC problem between the Backscatter communication technology and the other communication technology exists in the second communication device, the second communication device can report Backscatter request information to the first communication device based on the IDC problem, and the first communication device can send Backscatter configuration information to the second communication device based on the Backscatter request information. In this way, the first communication device can perform Backscatter communication based on the Backscatter configuration information, so as to reduce the communication conflict or interference between the Backscatter communication technology and the other communication technology.

[0100] For example, the second communication device can report affected frequency points, affected channels, etc. based on the configuration information of the other communication technology, and the first communication device can configure available frequency points, available channels, etc. for the second communication device based on the affected frequency points, affected channels, etc. reported by the second communication device.

[0101] Example Three: In the case that the IDC problem between the Backscatter communication technology and the other communication technology exists in both the first communication device and the second communication device, the second communication device can report Backscatter request information to the first communication device based on the IDC problem in the second communication device, and the first communication device can send Backscatter configuration information to the second communication device based on the Backscatter request information and the IDC problem in the first communication device. In this way, the first communication device can perform Backscatter communication based on the Backscatter configuration information, so as to reduce the communication conflict or interference between the Backscatter communication technology and the other communication technology.

[0102] For example, the first communication device has the IDC problem between the Backscatter communication technology and the first communication technology, and the second communication device has the IDC problem between the Backscatter communication technology and the second communication technology. The second communication device can report affected frequency points, affected channels, etc. based on the configuration information of the second communication technology, and the first communication device can configure available frequency points, available channels, etc. for the second communication device based on the affected frequency points, affected channels, etc. reported by the second communication device and the configuration information of the first communication technology. The first communication technology and the second communication technology can be any communication technology different from the Backscatter communication technology.

[0103] In another embodiment, the first communication device solves the IDC problem between the Backscatter communication technology and the other communication technology by not performing the first Backscatter operation when the first condition is met. It should be noted that the not performing the first Backscatter operation can be understood as at least one of the following: not starting or not beginning the first Backscatter operation; stopping the first Backscatter operation when the first Backscatter operation is in the process of being performed. The following illustrates this embodiment with examples:

[0104] Example 1: When the first communication device has the IDC problem between the Backscatter communication technology and the other communication technology, the first communication device does not perform the first Backscatter operation, which can avoid the influence of the Backscatter communication on the other communication technology.

[0105] Example 2: When the second communication device has the IDC problem between the Backscatter communication technology and the other communication technology, 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 perform the first Backscatter operation based on the indication information, which can avoid the influence of the Backscatter communication on the other communication technology.

[0106] The Backscatter communication method provided by the embodiments of the present application can be used for the first communication device to send the Backscatter configuration information determined based on the IDC problem to the second communication device. Since the Backscatter configuration information takes the IDC problem into account, the Backscatter communication based on the Backscatter configuration information can reduce the communication conflict or interference between the Backscatter communication technology and the other communication technology. In addition, the first communication device does not perform at least one of the data transceiving with the second communication device and the carrier transmission for the second communication device to collect energy when the first condition is met, that is, by not performing at least part of the operation related to the Backscatter communication, the interference of the Backscatter communication technology on the other communication technology can be reduced.

[0107] Optionally, the first communication device supports the Backscatter communication technology and the first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology.

[0108] In this embodiment, the first communication technology can include, but is not limited to, at least one of the following: a 3GPP radio access technology (RAT), such as NR, LTE, etc.; a GNSS, such as GPS, BDS, GLONASS, GALILEO, or NAVIC, etc.; a communication technology based on an industrial scientific medical (ISM) frequency band, such as Bluetooth, WIFI, near field communication (NFC), etc.; an air interface, such as a Uu interface, a side link (SideLink) interface, etc.

[0109] In this embodiment, the IDC problem exists between the Backscatter communication technology and the first communication technology of the first communication device, so that the first communication device can determine the Backscatter configuration information based on the configuration information of the first communication technology and send it to the second communication device. In this way, the second communication device can reduce the communication conflict or interference between the Backscatter communication technology and the first communication technology based on the Backscatter configuration information for Backscatter communication.

[0110] Optionally, the Backscatter configuration information can include at least one of the following:

[0111] An interference system type;

[0112] At least one available frequency point;

[0113] At least one affected channel;

[0114] At least one unavailable frequency band;

[0115] At least one unavailable frequency point;

[0116] DRX configuration information;

[0117] DTX configuration information.

[0118] In this embodiment, the interference system type can be used to indicate the system type that can currently affect or interfere with Backscatter communication. For example, when the interference system type includes a first communication technology (such as NR, LTE, etc.), it means that the system type that can currently interfere with Backscatter communication includes the system type of the first communication technology.

[0119] The affected channel can also be referred to as an unavailable channel, and the affected channel can include a channel that is being affected or can be affected. The unavailable frequency band can also be referred to as an affected frequency band, and the unavailable frequency band can include a frequency band that is being affected or can be affected. The unavailable frequency point can also be referred to as an affected frequency point, and the unavailable frequency point can include a frequency point that is being affected or can be affected.

[0120] The DRX configuration information can include at least one of an inactivity timer, a long cycle, a short cycle, a short cycle timer, a backscatter energy collection duration, and a backscatter data transmission duration.

[0121] The DTX configuration information can include at least one of a DTX cycle and a DTX duration.

[0122] Optionally, in a case where the IDC problem is an IDC problem between the backscatter communication technology and a first communication technology, the interference 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 point includes at least one frequency point affected by the first communication technology.

[0123] Optionally, the DRX configuration information includes at least one of:

[0124] a DRX cycle;

[0125] a backscatter energy collection duration;

[0126] a backscatter data transmission duration.

[0127] Optionally, in a case where the IDC problem is an IDC problem between the backscatter communication technology and a first communication technology, the DRX configuration information is determined based on transmission configuration information of the first communication technology.

[0128] For example, the backscatter energy collection duration and the backscatter data transmission duration can be determined based on the DRX configuration information of the first communication technology, or the backscatter data transmission duration can be determined based on the DRX configuration information of the first communication technology.

[0129] Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located in a non-transmitting time interval of the first communication technology.

[0130] Or

[0131] The Backscatter data transceiving duration is located in a non-transmitting time interval of the first communication technology.

[0132] Optionally, the non-transmitting time interval of the first communication technology can be a DRX Off interval of the first communication technology.

[0133] In an embodiment, for example, as shown in Figure 5 The Backscatter energy collection duration and the Backscatter data transceiving duration are located in a DRX Off interval of the first communication technology.

[0134] Taking an example that the first communication device simultaneously supports the first communication technology and the Backscatter communication technology, the second communication device performing Backscatter energy collection can collect energy by using radio frequency signals transmitted by devices other than the first communication device or radio frequency signals in the environment, in which case there is no communication conflict or interference between the Backscatter energy collection process of the second communication device and the first communication technology, and therefore, it is possible to only control the Backscatter data transceiving time to be located in a non-transmitting interval, for example, a DRX Off interval, of the first communication technology, which can reduce the conflict or interference between the Backscatter data transceiving and the first communication technology.

[0135] In another embodiment, for example, as shown in Figure 6 The Backscatter data transceiving duration is located in a DRX Off interval of the first communication technology.

[0136] Taking an example that the first communication device simultaneously supports the first communication technology and the Backscatter communication technology, the second communication device performing Backscatter energy collection can collect energy by using radio frequency signals transmitted by the first communication device, in which case it is possible to control the Backscatter data transceiving time and the Backscatter energy collection time to be located in a non-transmitting interval, for example, a DRX Off interval, of the first communication technology, which can reduce the conflict or interference between the Backscatter data transceiving and the Backscatter energy collection and the first communication technology.

[0137] Optionally, the first communication device sends Backscatter configuration information to the second communication device, including:

[0138] the first communication device sends, to the second communication device, Backscatter configuration information in a case that a second condition is met;

[0139] wherein the second condition comprises at least one of:

[0140] the first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

[0141] an IDC problem between the Backscatter communication technology and the first communication technology is detected;

[0142] the Backscatter configuration information changes;

[0143] the first communication device needs to perform a service related to the first communication technology in a case that the Backscatter communication is performed;

[0144] the first communication device needs to perform the Backscatter communication in a case that the first communication technology is in a connected state;

[0145] the Backscatter communication technology needs to use different frequencies from the first communication technology to transmit and receive data.

[0146] In the embodiment, the first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, which can be understood as that the first communication device simultaneously needs to perform communication by using the Backscatter communication technology and communication by using the first communication technology.

[0147] In an embodiment, the Backscatter configuration information can be sent to the second communication device in a case that the first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, so that the second communication device performs the Backscatter communication based on the Backscatter configuration information, and communication conflict or interference between the Backscatter communication technology and the first communication technology can be reduced.

[0148] In another embodiment, the Backscatter configuration information can be sent to the second communication device in case IDC problem between the Backscatter communication technology and the first communication technology is detected, so as to reduce unnecessary sending of the Backscatter configuration information and save resources while reducing communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0149] In another embodiment, the Backscatter configuration information can be sent to the second communication device in case the Backscatter configuration information changes, so that the second communication device can perform Backscatter communication based on the updated Backscatter configuration information.

[0150] In another embodiment, the Backscatter configuration information can be sent to the second communication device in case the first communication device needs to perform services related to the first communication technology when performing Backscatter communication, so that the second communication device can perform Backscatter communication based on the Backscatter configuration information, and communication conflict or interference between the Backscatter communication technology and the first communication technology can be reduced.

[0151] In another embodiment, the Backscatter configuration information can be sent to the second communication device in case the first communication technology is in a connected state and Backscatter communication is needed, so that the second communication device can perform Backscatter communication based on the Backscatter configuration information, and communication conflict or interference between the Backscatter communication technology and the first communication technology can be reduced.

[0152] In another embodiment, the Backscatter configuration information can be sent to the second communication device in case the Backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology, so that the second communication device can perform Backscatter communication based on the Backscatter configuration information, and communication conflict or interference between the Backscatter communication technology and the first communication technology can be reduced. Optionally, frequency domain configuration information such as available frequency points, affected frequency points, affected frequency bands, etc. can be sent to the second communication device in case the Backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology.

[0153] Optionally, the embodiment can send the Backscatter configuration information to the second communication device in any of the above conditions, for example, send the Backscatter configuration information to the second communication device once IDC problem between the Backscatter communication technology and the first communication technology is detected, send the Backscatter configuration information to the second communication device once the Backscatter configuration information is changed, send the Backscatter configuration information to the second communication device once the first communication device needs to perform the service related to the first communication technology in the case of Backscatter communication, and so on.

[0154] Optionally, the first condition can include at least one of the following:

[0155] The first communication device works as a communication device corresponding to the first communication technology;

[0156] IDC problem between the Backscatter communication technology and the first communication technology is detected;

[0157] The first communication device needs to perform the service related to the first communication technology in the case of Backscatter communication;

[0158] The first communication technology is in a connected state;

[0159] The Backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology.

[0160] In an embodiment, the first Backscatter operation can not be started or stopped in the case that the first communication device works as a communication device corresponding to the first communication technology, which can reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0161] In another embodiment, the first Backscatter operation can not be started or stopped in the case that IDC problem between the Backscatter communication technology and the first communication technology is detected, which can reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0162] In another embodiment, the first Backscatter operation is not started or stopped in case the first communication device needs to perform a service related to the first communication technology while performing the Backscatter communication, so as to reduce the impact of the Backscatter communication on the service related to the first communication technology.

[0163] In another embodiment, the first Backscatter operation is not started or stopped in case the first communication technology is in a connected state, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0164] In another embodiment, the first Backscatter operation is not started or stopped in case the Backscatter communication technology needs to use different frequencies from the first communication technology to transmit and receive data, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0165] Optionally, the first Backscatter operation is not started or stopped in case any of the above conditions is met, for example, the first Backscatter operation is not started or stopped as soon as IDC problem between the Backscatter communication technology and the first communication technology is detected, the first Backscatter operation is not started or stopped in case the first communication device needs to perform a service related to the first communication technology while performing the Backscatter communication, and so on.

[0166] The embodiments of the present application are described below in conjunction with examples:

[0167] Example 1: Backscatter control device and UE supporting first communication technology such as 3GPP TAT coexist, and the Backscatter communication technology and the first communication technology work in parallel based on FDM.

[0168] In this example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter control device. As shown in FIG. 1, the Backscatter communication method of the present embodiment includes: Figure 7

[0169] Step S1: The Backscatter control device sends the Backscatter configuration information to the Backscatter tag or the Backscatter terminal under the second condition.

[0170] ​The Backscatter configuration information includes at least one of the following:

[0171] Frequency hopping configuration, used to indicate a list of available frequency points;

[0172] At least one affected or possibly affected channel;

[0173] At least one unavailable frequency band; the frequency band is affected or possibly affected by the first communication technology;

[0174] At least one unavailable frequency point; the frequency point is affected or possibly affected by the first communication technology.

[0175] Interference system type; the interference system type includes the system type of the first communication technology.

[0176] The first communication technology and the second condition can be referred to the foregoing related description, which will not be repeated here.

[0177] Example two: Backscatter control device and UE supporting first communication technology such as 3GPP TAT coexist, and Backscatter communication technology and first communication technology work in parallel based on TDM.

[0178] In this example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter control device. Specifically, the Backscatter communication method of the embodiment includes:

[0179] The Backscatter control device sends the Backscatter configuration information to the Backscatter tag or the Backscatter terminal under the second condition.

[0180] The Backscatter configuration information includes at least one of the following: DRX configuration information, DTX configuration information. The DRX configuration information includes at least one of the following: DRX cycle, Backscatter energy collection duration and Backscatter data transmission duration. The DTX configuration information includes at least one of the following: DTX cycle and DTX duration.

[0181] The first communication technology and the second condition can be referred to the foregoing related description, which will not be repeated here.

[0182] Example 3: Backscatter control device and UE supporting first communication technology such as 3GPP TAT coexist, and Backscatter communication technology and first communication technology do not work in parallel.

[0183] In this example, the Backscatter communication technology and the first communication technology are not performed at the same time. When the Backscatter communication technology and the first communication technology are concurrent, the task of the first communication technology can be performed preferentially.

[0184] Specifically, the Backscatter communication method of the embodiment includes:

[0185] The Backscatter control device does not start or stop the first Backscatter operation under the first condition, and the first Backscatter operation includes at least one of the following:

[0186] Data transceiving with the Backscatter terminal;

[0187] Carrier transmission for the Backscatter terminal to collect energy.

[0188] Wherein, the first condition can refer to the foregoing related description, which will not be repeated here.

[0189] As can be seen from the above, the technical scheme provided by the embodiment of the application can solve the problem of coexistence of Backscatter communication technology and other communication technology (i.e. first communication technology) within the device, and reduce the conflict or interference between Backscatter communication and other communication technology.

[0190] Please refer to Figure 8 , Figure 8 is a flowchart of another Backscatter communication method provided by the embodiment of the application, which can be executed by a second communication device, such as Figure 8 As shown in the figure, the method includes the following steps:

[0191] Step 801, the second communication device receives Backscatter configuration information from the first communication device;

[0192] Wherein, the second communication device is used to modulate signals with radio frequency signals transmitted by devices different from the second communication device or radio frequency signals in the environment to transmit information, and the first communication device is used to receive radio frequency signals reflected by the second communication device to receive information; the Backscatter configuration information is configuration information determined based on IDC problem.

[0193] In this embodiment, after the second communication device receives the Backscatter configuration information, the second communication device can perform Backscatter communication based on the Backscatter configuration information, for example, perform Backscatter energy collection and Backscatter data transmission based on the Backscatter configuration information, so as to reduce communication conflict or interference between the Backscatter communication technology and other communication technologies.

[0194] It should be noted that the embodiments Figure 4 The implementation of the second communication device corresponding to the embodiments shown in the embodiments can be referred to for specific implementation Figure 4 The same beneficial effects are achieved, and to avoid repeated description, it will not be described here.

[0195] 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.

[0196] It should be noted that the implementation of the embodiments can be referred to for implementation Figure 4 The related description of the embodiments shown in the embodiments will not be described here.

[0197] Optionally, the Backscatter configuration information includes at least one of the following:

[0198] Interference system type;

[0199] At least one available frequency point;

[0200] At least one affected channel;

[0201] At least one unavailable frequency range;

[0202] At least one unavailable frequency point;

[0203] Discontinuous reception DRX configuration information;

[0204] Discontinuous transmission DTX configuration information.

[0205] It should be noted that the implementation of the embodiments can be referred to for implementation Figure 4 The related description of the embodiments shown in the embodiments will not be described here.

[0206] Optionally, in a case where the IDC issue is an IDC issue between the Backscatter communication technology and a first communication technology, the interference 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 range includes at least one frequency range affected by the first communication technology, and the at least one unavailable frequency point includes at least one frequency point affected by the first communication technology.

[0207] It should be noted that the implementation manner of the embodiment can refer to the related description of the embodiment shown in the Figure 4 embodiment, which will not be repeated here.

[0208] Optionally, the DRX configuration information includes at least one of the following:

[0209] a DRX cycle;

[0210] a Backscatter energy collection duration;

[0211] a Backscatter data transceiving duration.

[0212] It should be noted that the implementation manner of the embodiment can refer to the related description of the embodiment shown in the Figure 4 embodiment, which will not be repeated here.

[0213] Optionally, in a case where the IDC issue is an IDC issue between the Backscatter communication technology and a first communication technology, the DRX configuration information is determined based on transmission configuration information of the first communication technology.

[0214] It should be noted that the implementation manner of the embodiment can refer to the related description of the embodiment shown in the Figure 4 embodiment, which will not be repeated here.

[0215] 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.

[0216] or

[0217] the Backscatter data transceiving duration is located in a non-transmission time interval of the first communication technology.

[0218] It should be noted that the implementation manner of the embodiment can refer to the related description of the embodiment shown in the Figure 4 embodiment, which will not be repeated here.

[0219] Optionally, the non-transmit time interval of the first communication technology is a DRX off interval of the first communication technology.

[0220] It should be noted that the implementation manners of the embodiment can refer to the related descriptions of the embodiments shown in Figure 4 and will not be described here.

[0221] Optionally, the first communication technology comprises at least one of the following: 3GPP RAT; air interface; GNSS; ISM band-based communication technology.

[0222] It should be noted that the implementation manners of the embodiment can refer to the related descriptions of the embodiments shown in Figure 4 and will not be described here.

[0223] Please refer to Figure 9 , Figure 9 is a flowchart of another backscatter communication method provided by the embodiment of the present application, which can be executed by a second communication device, as shown in Figure 9 , comprising the following steps:

[0224] Step 901, the second communication device sends a backscatter request information to the first communication device or does not perform a second backscatter operation in the case of meeting a third condition;

[0225] The second communication device is configured to perform signal modulation to transmit information by using radio frequency signals transmitted by a device different from the second communication device or radio frequency signals in the environment, and the first communication device is configured to receive radio frequency signals reflected by the second communication device to receive information.

[0226] The backscatter request information is request information determined based on an IDC problem; the second backscatter operation comprises data transceiving with the first communication device, or the second backscatter operation comprises data transceiving with the first communication device and energy collection based on a carrier transmitted by the first communication device.

[0227] It should be noted that in some scenarios, the above-mentioned first communication device can also be referred to as a backscatter reader (Reader) or a backscatter control device. The above-mentioned second communication device can also be referred to as a backscatter tag (Tag) or a passive IoT or a backscatter terminal. In addition, the above-mentioned second communication device can support other communication technologies in addition to the backscatter communication technology, for example, NR, LTE, Bluetooth, WIFI, GNSS, etc. That is, the second communication device has an IDC problem.

[0228] The Backscatter request information can be used to request the first communication device to provide the second communication device with configuration information related to Backscatter communication. The Backscatter request information can be request information determined based on IDC problem. For example, the Backscatter request information can be understood as request information determined to avoid IDC problem. The IDC problem can also be referred to as IDC interference. Optionally, the Backscatter request information can include, but is not limited to, at least one of IDC indication, Backscatter communication status, IDC assistance information, and Backscatter configuration preference information.

[0229] The third condition can be a condition related to IDC problem. For example, the IDC problem can exist in the second communication device.

[0230] In an embodiment, the second communication device sends the Backscatter request information determined based on IDC problem to the first communication device. 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. The second communication device can perform Backscatter communication based on the Backscatter configuration information to reduce communication conflict or interference between the Backscatter communication technology and other communication technologies. For example, the second communication device can report affected frequency points, affected channels, and the like based on configuration information of other communication technologies. The first communication device can 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.

[0231] In another embodiment, the second communication device does not perform the second Backscatter operation when the third condition is met. This can reduce interference of the Backscatter communication technology on other communication technologies.

[0232] It should be noted that the second Backscatter operation can be understood as at least one of the following: not starting or not beginning the second Backscatter operation; stopping the second Backscatter operation when the second Backscatter operation is in the process of being executed.

[0233] Further, it is also to be noted that, in the case that the second communication device performs the backscatter energy collection by using the radio frequency signals transmitted by the device other than the first communication device or the radio frequency signals in the environment to collect the energy, the second backscatter operation can only include the data transceiving with the first communication device. In the case that the second communication device performs the backscatter energy collection by using the radio frequency signals transmitted by the first communication device to collect the energy, the second backscatter operation can include the data transceiving with the first communication device and the energy collection based on the carrier transmitted by the first communication device.

[0234] The backscatter communication method provided by the embodiments of the present application can be used for the second communication device to send 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. Since the backscatter request information considers the IDC problem, the second communication device can reduce the communication conflict or interference between the backscatter communication technology and other communication technologies based on the backscatter configuration information for the backscatter communication. In addition, the second communication device does not perform the second backscatter operation in the case that the third condition is met, so that the communication conflict or interference between the backscatter communication technology and other communication technologies can be reduced.

[0235] Optionally, the second communication device supports the backscatter communication technology and the first communication technology, and the IDC problem is an IDC problem between the backscatter communication technology and the first communication technology.

[0236] In the embodiments, the first communication technology can include but is not limited to at least one of the following: a 3GPP RAT, such as NR, LTE, etc.; a GNSS, such as GPS, BDS, GLONASS, GALILEO or NAVIC, etc.; an ISM band-based communication technology, such as Bluetooth, WIFI, NFC, etc.; an air interface, such as a Uu interface, a SideLink interface, etc.

[0237] Optionally, the backscatter request information includes at least one of the following:

[0238] an IDC indicator;

[0239] a backscatter communication state;

[0240] IDC assistance information;

[0241] Backscatter configuration preference information.

[0242] In the embodiment, the in-device interference indication is used to indicate that the second communication device has in-device interference. The backscatter communication state is used to indicate the state of the backscatter communication of the second communication device, for example, a data transmission suspension state, a non-response state, etc. The IDC assistance information is used to indicate IDC related information, for example, an affected frequency point, an affected channel, an interference system type, etc. The backscatter configuration preference information may, for example, include time domain configuration related preference information.

[0243] Optionally, the IDC assistance information includes at least one of the following:

[0244] An interference system type;

[0245] At least one available frequency point;

[0246] At least one affected channel;

[0247] At least one unavailable frequency range;

[0248] At least one unavailable frequency point.

[0249] In the embodiment, the interference system type may be used to indicate a system type that can currently affect or interfere with the backscatter communication, for example, when the interference system type includes a first communication technology (for example, NR, LTE, etc.), it means that the system type that can currently interfere with the backscatter communication includes the system type of the first communication technology.

[0250] The affected channel may also be referred to as an unavailable channel, wherein the affected channel may include a channel that is being affected or may be affected. The unavailable frequency range may also be referred to as an affected frequency range, and may include a frequency range that is being affected 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.

[0251] Optionally, in the case where the IDC problem is an IDC problem between the backscatter communication technology and a first communication technology, the interference 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 range includes at least one frequency range affected by the first communication technology, and the at least one unavailable frequency point includes at least one frequency point affected by the first communication technology.

[0252] Optionally, the Backscatter configuration preference information comprises at least one of:

[0253] a Backscatter energy harvesting duration;

[0254] a Backscatter data transmission duration;

[0255] DTX preference information;

[0256] DRX preference information.

[0257] In the embodiment, the DTX preference information can comprise at least one of a DTX cycle and a DTX duration, but is not limited thereto. The DRX preference information can comprise at least one of a DRX cycle, a DRX time offset, a DRX duration, a Backscatter energy harvesting duration, and a Backscatter data transmission duration, but is not limited thereto.

[0258] Optionally, the DRX preference information comprises a DRX cycle, and the DRX cycle covers at least a first duration and a second duration.

[0259] The first duration is a DRX duration corresponding to the first communication technology, and the second duration comprises a sum of the Backscatter energy harvesting duration and the Backscatter data transmission duration, or the second duration comprises the Backscatter data transmission duration.

[0260] In an embodiment, for example, as shown in FIG. 6, the DRX cycle covers at least the DRX On Duration corresponding to the first communication technology and the Backscatter data transmission duration. Figure 5

[0261] For example, when the second communication device supports both the first communication technology and the Backscatter communication technology, the Backscatter energy harvesting can be performed by using the radio frequency signal transmitted by a device other than the first communication device or the radio frequency signal in the environment to collect energy. In this case, there is no communication conflict or interference between the Backscatter energy harvesting process and the first communication technology, and thus the Backscatter data transmission time can be controlled to be located in the non-transmission interval of the first communication technology, for example, the DRX off interval. That is, the DRX cycle comprises at least the DRX On Duration corresponding to the first communication technology and the Backscatter data transmission duration, which can reduce the conflict or interference between the Backscatter data transmission and the first communication technology.

[0262] In another embodiment, for example, as shown in FIG. 7, the DRX cycle covers at least the DRX On Duration corresponding to the first communication technology and the Backscatter data transmission duration.​Figure 6 As shown, the DRX cycle (DRX Cycle) covers at least the DRX OnDuration corresponding to the first communication technology, the Backscatter data transceiving duration and the Backscatter energy collection duration.

[0263] Taking the second communication device supporting the first communication technology and the Backscatter communication technology as an example, the Backscatter energy collection can be collecting energy by using the radio frequency signal transmitted by the first communication device, in this case, the Backscatter data transceiving time and the Backscatter energy collection time can be controlled to be located in the non-transmitting interval of the first communication technology, for example, the DRX off interval, that is, the DRX cycle includes at least the DRX OnDuration corresponding to the first communication technology, the Backscatter data transceiving duration and the Backscatter energy collection duration, so as to reduce the conflict or interference between the Backscatter data transceiving and the Backscatter energy collection and the first communication technology.

[0264] Optionally, in order to further reduce the conflict or interference between the Backscatter data transceiving and the data transceiving of the first communication technology, the duration of the data transceiving of the first communication technology can be counted in advance, and the above-mentioned DRX cycle (DRX Cycle) can be greater than or equal to the sum of the DRX OnDuration corresponding to the first communication technology, the preset duration of the data transceiving of the first communication technology and the Backscatter data transceiving duration.

[0265] Optionally, the Backscatter communication state includes at least one of the following:

[0266] A data transmission suspension state, the data transmission suspension state indicating that the second communication device suspends data transmission;

[0267] A non-response state, the non-response state indicating that the second communication device does not respond to the command of the first communication device.

[0268] In the embodiment, in the case that the second communication device is in the data transmission suspension state, the second communication device suspends data transmission. In the case that the second communication device is in the non-response state, the second communication device does not respond to the command of the first communication device.

[0269] Optionally, the second communication device sends the Backscatter request information to the first communication device, including:

[0270] The second communication device sends the Backscatter request information to the first communication device in the case that the fourth condition is met.

[0271] The fourth condition comprises at least one of the following:

[0272] The second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology.

[0273] An IDC problem between the Backscatter communication technology and the first communication technology is detected.

[0274] The Backscatter request information changes.

[0275] The second communication device needs to perform a service related to the first communication technology in a case of Backscatter communication.

[0276] The second communication device needs to perform Backscatter communication in a case that the first communication technology is in a connected state.

[0277] The Backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology.

[0278] In the embodiment, the second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, which can be understood as that the second communication device simultaneously needs to use the Backscatter communication technology to communicate and use the first communication technology to communicate.

[0279] In an embodiment, the Backscatter request information can be sent to the first communication device in a case that the second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology, so that the first communication device sends Backscatter configuration information to the second communication device based on the Backscatter request information to perform Backscatter communication, which can reduce communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0280] In another embodiment, the Backscatter request information can be sent to the first communication device in case IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device sends the Backscatter configuration information to the second communication device based on the Backscatter request information for Backscatter communication, thereby reducing unnecessary sending of the Backscatter request information and saving resources while reducing communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0281] In another embodiment, the Backscatter request information can be sent to the first communication device in case IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device sends the Backscatter configuration information to the second communication device based on the Backscatter request information for Backscatter communication, thereby reducing unnecessary sending of the Backscatter request information and saving resources while reducing communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0282] In another embodiment, the Backscatter request information can be sent to the first communication device in case IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device sends the Backscatter configuration information to the second communication device based on the Backscatter request information for Backscatter communication, thereby reducing unnecessary sending of the Backscatter request information and saving resources while reducing communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0283] In another embodiment, the Backscatter request information can be sent to the first communication device in case IDC problem between the Backscatter communication technology and the first communication technology is detected, so that the first communication device sends the Backscatter configuration information to the second communication device based on the Backscatter request information for Backscatter communication, thereby reducing unnecessary sending of the Backscatter request information and saving resources while reducing communication conflict or interference between the Backscatter communication technology and the first communication technology.

[0284] In another embodiment, the Backscatter request information can be sent to the first communication device in a case that the Backscatter communication technology needs to use different frequency from the first communication technology to transmit and receive data, so that the first communication device sends the Backscatter configuration information to the second communication device based on the Backscatter request information to perform the Backscatter communication, thereby reducing the communication conflict or interference between the Backscatter communication technology and the first communication technology. Optionally, frequency domain related information, such as available frequency points, affected frequency points, affected frequency bands, etc., can be sent to the first communication device in a case that the Backscatter communication technology needs to use different frequency from the first communication technology to transmit and receive data.

[0285] Optionally, the embodiment can send the Backscatter request information to the first communication device in a case that any of the above conditions is met, for example, the Backscatter request information is sent to the first communication device as soon as IDC problem between the Backscatter communication technology and the first communication technology is detected, the Backscatter request information is sent to the first communication device as soon as the Backscatter request information sending changes, the Backscatter request information is sent to the first communication device as soon as the second communication device needs to perform the service related to the first communication technology in a case that the Backscatter communication is performed, etc.

[0286] Optionally, the third condition includes at least one of the following:

[0287] The second communication device works as a communication device corresponding to the first communication technology;

[0288] The IDC problem between the Backscatter communication technology and the first communication technology is detected;

[0289] The second communication device needs to perform the service related to the first communication technology in a case that the Backscatter communication is performed;

[0290] The first communication technology is in a connected state;

[0291] The Backscatter communication technology needs to use different frequency from the first communication technology to transmit and receive data.

[0292] In an embodiment, the second Backscatter operation can be not started or stopped when the second communication device is operating as a communication device corresponding to the first communication technology, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0293] In another embodiment, the second Backscatter operation can be not started or stopped when IDC problem between the Backscatter communication technology and the first communication technology is detected, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0294] In another embodiment, the second Backscatter operation can be not started or stopped when the second communication device needs to perform a service related to the first communication technology while performing the Backscatter communication, so as to reduce the influence of the Backscatter communication on the service related to the first communication technology.

[0295] In another embodiment, the second Backscatter operation can be not started or stopped when the first communication technology is in a connected state, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0296] In another embodiment, the second Backscatter operation can be not started or stopped when the Backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology, so as to reduce the conflict or interference between the Backscatter communication and the transmission related to the first communication technology.

[0297] Optionally, the embodiment can not start or stop the second Backscatter operation when any of the above conditions is met, for example, the second Backscatter operation can be not started or stopped when IDC problem between the Backscatter communication technology and the first communication technology is detected, the second Backscatter operation can be not started or stopped when the second communication device needs to perform a service related to the first communication technology while performing the Backscatter communication, and so on.

[0298] Optionally, the method can further include:

[0299] The second communication device receives first configuration information from the first communication device; wherein the first configuration information is used to configure whether the second communication device is allowed to send the Backscatter request information.

[0300] In the embodiment, when the first configuration information indicates that the second communication device is allowed to send the Backscatter request information, the second communication device can send the Backscatter request information to the first communication device, otherwise the second communication device is not allowed to send the Backscatter request information to the first communication device.

[0301] The embodiments of the present application are described below in conjunction with examples:

[0302] Example one: Backscatter terminal and UE supporting first communication technology such as 3GPP TAT coexist, and Backscatter communication technology and first communication technology work in parallel based on FDM.

[0303] In the example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter terminal. Specifically, the Backscatter communication method of the embodiment includes:

[0304] The Backscatter terminal sends the Backscatter request information to the Backscatter control device under the fourth condition.

[0305] The Backscatter request information includes at least one of the following:

[0306] Frequency hopping configuration (Frequency Hopping) for indicating a list of available frequency points;

[0307] At least one affected or possibly affected channel (Channel);

[0308] At least one unavailable frequency band (Frequency Band); the frequency band is a frequency band affected or possibly affected by the first communication technology;

[0309] At least one unavailable frequency point (Frequency); the frequency point is a frequency point affected or possibly affected by the first communication technology.

[0310] Interference system type (Interference System Type); the interference system type includes the system type of the first communication technology.

[0311] Wherein, the first communication technology and the fourth condition can refer to the foregoing related description, which is not repeated here.

[0312] Example Two: Backscatter terminal and UE supporting first communication technology such as 3GPP TAT coexist, and Backscatter communication technology and first communication technology work in parallel based on TDM manner.

[0313] In this example, the UE supporting the first communication technology such as 3GPP TAT is the Backscatter terminal. Specifically, the Backscatter communication method of the embodiment includes:

[0314] The Backscatter terminal sends Backscatter request information to the Backscatter control device under the fourth condition.

[0315] The Backscatter request information includes at least one of the following:

[0316] In-device interference indication;

[0317] Backscatter communication state;

[0318] Backscatter configuration preference information.

[0319] The Backscatter configuration preference information includes at least one of the following:

[0320] Backscatter energy collection duration;

[0321] Backscatter data transmission and reception duration;

[0322] DTX preference information;

[0323] DRX preference information.

[0324] The first communication technology and the fourth condition can be referred to the foregoing related description, and will not be repeated here.

[0325] Example Three: Backscatter terminal and UE supporting first communication technology such as 3GPP TAT coexist, and Backscatter communication technology and first communication technology do not work in parallel.

[0326] In this example, the Backscatter communication technology and the first communication technology are not performed at the same time. When the Backscatter communication technology and the first communication technology are concurrent, the task of the first communication technology can be executed preferentially.

[0327] Specifically, the Backscatter communication method of the embodiment includes:

[0328] The backscatter terminal does not start or stop the second backscatter operation under the third condition, the second backscatter operation at least includes:

[0329] Data transceiving with the backscatter control device;

[0330] Or

[0331] Data transceiving with the backscatter control device and collecting energy based on the carrier transmitted by the backscatter control device.

[0332] Wherein, the third condition can refer to the foregoing related description, which will not be repeated here.

[0333] As can be seen, the technical scheme provided by the embodiments of the present application can solve the device coexistence problem between the backscatter communication technology and other communication technologies (i.e. the first communication technology), and reduce the conflict or interference between the backscatter communication and the transmission related to the first communication technology.

[0334] Please refer to Figure 10 , Figure 10 is a flowchart of another backscatter communication method provided by the embodiments of the present application, which can be executed by the first communication device, as shown in Figure 10 , including the following steps:

[0335] Step 1001, the first communication device receives the backscatter request information from the second communication device;

[0336] Wherein, the second communication device is used to modulate signals to transmit information by using the radio frequency signals transmitted by the device different from the second communication device or the radio frequency signals in the environment, and the first communication device is used to receive the radio frequency signals reflected by the second communication device to receive information; the backscatter request information is the request information determined based on the IDC problem.

[0337] In this embodiment, after the first communication device receives the backscatter request information, the first communication device can send the backscatter configuration information to the second communication device based on the backscatter request information, and then the second communication device can perform the backscatter communication based on the backscatter configuration information, for example, perform the backscatter energy collection and the backscatter data transceiving based on the backscatter configuration information, so as to reduce the communication conflict or interference between the backscatter communication technology and other communication technologies.

[0338] It should be noted that the embodiment is as Figure 9 The implementation of the first communication device corresponding to the embodiment shown in the embodiment can be referred to for specific implementation Figure 9 The same beneficial effects are achieved, and to avoid repetition, this will not be repeated here.

[0339] Optionally, the second communication device supports Backscatter communication technology and first communication technology, and the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology.

[0340] It should be noted that the implementation of the embodiment can be referred to for implementation Figure 9 The related description of the embodiment shown in the embodiment will not be repeated here.

[0341] Optionally, the Backscatter request information includes at least one of the following:

[0342] In-device interference indication;

[0343] Backscatter communication state;

[0344] IDC auxiliary information;

[0345] Backscatter configuration preference information.

[0346] It should be noted that the implementation of the embodiment can be referred to for implementation Figure 9 The related description of the embodiment shown in the embodiment will not be repeated here.

[0347] Optionally, the IDC auxiliary information includes at least one of the following:

[0348] Interference system type;

[0349] At least one available frequency point;

[0350] At least one affected channel;

[0351] At least one unusable frequency range;

[0352] At least one unusable frequency point.

[0353] It should be noted that the implementation of the embodiment can be referred to for implementation Figure 9 The related description of the embodiment shown in the embodiment will not be repeated here.

[0354] Optionally, in a case where the IDC issue is an IDC issue between a Backscatter communication technology and a first communication technology, the interference 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 point includes at least one frequency point affected by the first communication technology.

[0355] It should be noted that the implementation manner of this embodiment can refer to the related description of the embodiment shown in Figure 9 and will not be described here.

[0356] Optionally, the Backscatter configuration preference information includes at least one of the following:

[0357] a Backscatter energy collection duration;

[0358] a Backscatter data transmission duration;

[0359] DTX preference information;

[0360] DRX preference information.

[0361] It should be noted that the implementation manner of this embodiment can refer to the related description of the embodiment shown in Figure 9 and will not be described here.

[0362] Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration.

[0363] The first duration is a DRX duration corresponding to a first communication technology, and the second duration includes a sum of a Backscatter energy collection duration and a Backscatter data transmission duration, or the second duration includes a Backscatter data transmission duration.

[0364] It should be noted that the implementation manner of this embodiment can refer to the related description of the embodiment shown in Figure 9 and will not be described here.

[0365] Optionally, the Backscatter communication state includes at least one of the following:

[0366] a data transmission suspension state, the data transmission suspension state indicating that the second communication device suspends data transmission;

[0367] a non-response state, the non-response state indicating that the second communication device does not respond to a command of the first communication device.

[0368] It should be noted that the implementation of the embodiment can refer to the related description of the embodiment shown in Figure 9 The related description of the embodiment is not repeated here.

[0369] Optionally, the first communication technology comprises at least one of the following: 3GPP RAT; air interface; GNSS; ISM band-based communication technology.

[0370] It should be noted that the implementation of the embodiment can refer to the related description of the embodiment shown in Figure 9 The related description of the embodiment is not repeated here.

[0371] Optionally, the method further comprises:

[0372] The first communication device sends first configuration information to the second communication device; wherein the first configuration information is used to configure whether to allow the second communication device to send the Backscatter request information.

[0373] It should be noted that the implementation of the embodiment can refer to the related description of the embodiment shown in Figure 9 The related description of the embodiment is not repeated here.

[0374] It should be noted that the execution subject of the backscatter communication method provided in the embodiment of the application can 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 application, the backscatter communication device executes the backscatter communication method as an example to illustrate the backscatter communication device provided in the embodiment of the application.

[0375] Please refer to Figure 11 , Figure 11 is a structure diagram of a backscatter communication device provided in the embodiment of the application, as Figure 11 shown, the backscatter communication device 1100 comprises:

[0376] The first sending module 1101 is configured to send backscatter configuration information to a second communication device or not to perform a first backscatter operation in the case of meeting a first condition.

[0377] The second communication device is configured to use a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to perform signal modulation to transmit information, and the backscatter communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information.

[0378] 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 the following: data transceiving with the second communication device; carrier transmission for the second communication device to collect energy.

[0379] Optionally, the Backscatter 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.

[0380] Optionally, the Backscatter configuration information includes at least one of the following:

[0381] An interference system type;

[0382] At least one available frequency point;

[0383] At least one affected channel;

[0384] At least one unavailable frequency range;

[0385] At least one unavailable frequency point;

[0386] Discontinuous reception DRX configuration information;

[0387] Discontinuous transmission DTX configuration information.

[0388] Optionally, in a case where the IDC problem is an IDC problem between a Backscatter communication technology and a first communication technology, the interference 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 range includes at least one frequency range affected by the first communication technology, and the at least one unavailable frequency point includes at least one frequency point affected by the first communication technology.

[0389] Optionally, the DRX configuration information includes at least one of the following:

[0390] A DRX cycle;

[0391] A Backscatter energy collection duration;

[0392] A Backscatter data transceiving duration.

[0393] Optionally, in a case where the IDC problem is an IDC problem between a Backscatter communication technology and a first communication technology, the DRX configuration information is determined based on transmission configuration information of the first communication technology.

[0394] Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located in a non-transmitting time interval of the first communication technology.

[0395] Or

[0396] The Backscatter data transceiving duration is located in a non-transmitting time interval of the first communication technology.

[0397] Optionally, the non-transmitting time interval of the first communication technology is a DRX off interval of the first communication technology.

[0398] Optionally, the first sending module is specifically configured to:

[0399] send the Backscatter configuration information to a second communication device in a case where a second condition is met;

[0400] The second condition includes at least one of the following:

[0401] The backscatter communication device works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology at the same time;

[0402] Detecting an IDC problem between the Backscatter communication technology and the first communication technology;

[0403] The Backscatter configuration information changes;

[0404] The backscatter communication device needs to perform a service related to the first communication technology in a case where the backscatter communication is performed;

[0405] The backscatter communication device needs to perform the backscatter communication in a case where the first communication technology is in a connected state;

[0406] The Backscatter communication technology needs to use different frequencies to transceive data from the first communication technology.

[0407] Optionally, the first condition includes at least one of the following:

[0408] The backscatter communication device works as a communication device corresponding to the first communication technology;

[0409] Detecting an IDC problem between the Backscatter communication technology and the first communication technology;

[0410] The backscatter communication device needs to perform services related to the first communication technology when performing backscatter communication.

[0411] The first communication technology is in a connected state.

[0412] The backscatter communication technology needs to use different frequencies from the first communication technology to transmit and receive data.

[0413] Optionally, the first communication technology includes at least one of the following: 3rd Generation Partnership Project Radio Access Technology (3GPP RAT); an air interface; a Global Navigation Satellite System (GNSS); and a communication technology based on an Industrial, Scientific and Medical (ISM) band.

[0414] The backscatter communication device in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component in a terminal device, an integrated circuit, or a chip. The device or electronic device can be a mobile terminal or a non-mobile terminal. Illustratively, the mobile terminal can include, but is not limited to, the types of terminal devices 11 listed above, and the non-mobile terminal can be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., and the embodiments of the present application are not limited specifically.

[0415] The backscatter communication device provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects, and to avoid repetition, details are not repeated here. Figure 4 The method embodiments implement various processes and achieve the same technical effects, and to avoid repetition, details are not repeated here.

[0416] Please refer to Figure 12 , Figure 12 is a structural diagram of a backscatter communication device provided in the embodiments of the present application, as shown in Figure 12 , the backscatter communication device 1200 includes:

[0417] A first receiving module 1201 is configured to receive backscatter configuration information from a first communication device.

[0418] The backscatter communication device is configured to use radio frequency signals transmitted by a device different from the backscatter communication device or radio frequency signals in the environment to modulate signals to transmit information, and the first communication device is configured to receive radio frequency signals reflected by the backscatter communication device to receive information. The backscatter configuration information is configuration information determined based on an IDC problem.

[0419] 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.

[0420] Optionally, the Backscatter configuration information includes at least one of first configuration information and second configuration information.

[0421] The first configuration information includes at least one of the following: an interference system type; at least one available frequency point; at least one affected channel; at least one unavailable frequency range; and at least one unavailable frequency point.

[0422] The second configuration information includes at least one of the following: DRX configuration information and DTX configuration information.

[0423] The Backscatter communication device in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component, an integrated circuit, or a chip in a Backscatter tag.

[0424] The Backscatter communication device provided in the embodiments of the present application can implement the method embodiments Figure 8 achieve the same technical effects. To avoid repetition, details are not repeated here.

[0425] Please refer to Figure 13 , Figure 13 is a structural diagram of a Backscatter communication device provided in the embodiments of the present application, as shown in Figure 13 , the Backscatter communication device 1300 includes:

[0426] The second sending module 1301 is configured to send Backscatter request information to the first communication device or not perform a second Backscatter operation in a case where a third condition is met.

[0427] The Backscatter communication device is configured to perform signal modulation on a radio frequency signal emitted by a device different from the Backscatter communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the Backscatter communication device to receive information.

[0428] The Backscatter request information is request information determined based on an IDC problem, and the second Backscatter operation includes data transceiving with the first communication device or includes data transceiving with the first communication device and energy collection based on a carrier emitted by the first communication device.

[0429] Optionally, the backscatter communication device supports a backscatter communication technology and a first communication technology, and the IDC issue is an IDC issue between the backscatter communication technology and the first communication technology.

[0430] Optionally, the backscatter request information comprises at least one of:

[0431] In-device interference indication;

[0432] Backscatter communication status;

[0433] IDC assistance information;

[0434] Backscatter configuration preference information.

[0435] Optionally, the IDC assistance information comprises at least one of:

[0436] Interfering system type;

[0437] At least one available frequency point;

[0438] At least one affected channel;

[0439] At least one unavailable frequency range;

[0440] At least one unavailable frequency point.

[0441] Optionally, in a case where the IDC issue is an IDC issue between a backscatter communication technology and a first communication technology, the interfering system type comprises a system type of the first communication technology, the at least one affected channel comprises at least one channel affected by the first communication technology, the at least one unavailable frequency range comprises at least one frequency range affected by the first communication technology, and the at least one unavailable frequency point comprises at least one frequency point affected by the first communication technology.

[0442] Optionally, the backscatter configuration preference information comprises at least one of:

[0443] Backscatter energy harvesting duration;

[0444] Backscatter data transceiving duration;

[0445] DTX preference information;

[0446] DRX preference information.

[0447] Optionally, the DRX preference information comprises a DRX cycle, the DRX cycle covering at least a first time length and a second time length.

[0448] The first time length is a DRX duration corresponding to the first communication technology, and the second time length comprises a sum of a Backscatter capability collection time length and a Backscatter data transceiving time length, or the second time length comprises the Backscatter data transceiving time length.

[0449] Optionally, the Backscatter communication state comprises at least one of:

[0450] a data transmission suspension state, the data transmission suspension state indicating that the backscatter communication device suspends data transmission;

[0451] a non-response state, the non-response state indicating that the backscatter communication device does not respond to a command of the first communication device.

[0452] Optionally, the second sending module is specifically configured to:

[0453] send Backscatter request information to the first communication device in a case where a fourth condition is met;

[0454] The fourth condition comprises at least one of:

[0455] the backscatter communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

[0456] an IDC problem between the Backscatter communication technology and the first communication technology is detected;

[0457] the Backscatter request information changes;

[0458] the backscatter communication device needs to perform a service related to the first communication technology in a case where the backscatter communication device performs Backscatter communication;

[0459] the backscatter communication device needs to perform Backscatter communication in a case where the first communication technology is in a connected state;

[0460] the Backscatter communication technology needs to use different frequencies to transceive data from the first communication technology.

[0461] Optionally, the third condition comprises at least one of:

[0462] The backscatter communication device operates as a communication device corresponding to the first communication technology.

[0463] An in-device coexistence issue between the backscatter communication technology and the first communication technology is detected.

[0464] The backscatter communication device needs to perform a service related to the first communication technology in a case where the backscatter communication is performed.

[0465] The first communication technology is in a connected state.

[0466] The backscatter communication technology needs to use different frequencies to transmit and receive data from the first communication technology.

[0467] Optionally, the first communication technology includes at least one of the following: a 3GPP RAT, an air interface, a GNSS, and a communication technology based on an ISM band.

[0468] Optionally, the apparatus further includes:

[0469] The second receiving module is configured to receive first configuration information from the first communication device, where the first configuration information is used to configure whether the backscatter communication device is allowed to send the backscatter request information.

[0470] The backscatter communication device in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component, an integrated circuit, or a chip in a terminal device. The device or the electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include, but is not limited to, the types of terminal devices 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, and the like, which are not limited in the embodiments of the present application.

[0471] The backscatter communication device provided in the embodiments of the present application can implement the method embodiments Figure 9 achieve the same technical effects, and thus details are not repeated here.

[0472] Please refer to Figure 14 , Figure 14 is a structural diagram of a backscatter communication device provided in the embodiments of the present application, as shown in Figure 14 , the backscatter communication device 1400 includes:

[0473] The third receiving module 1401 is configured to receive Backscatter request information from the second communication device.

[0474] The second communication device is configured to perform signal modulation on a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the Backscatter communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information.

[0475] 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.

[0476] Optionally, the Backscatter request information includes at least one of the following:

[0477] In-device coexistence indication;

[0478] Backscatter communication state;

[0479] IDC assistance information;

[0480] Backscatter configuration preference information.

[0481] The Backscatter communication device in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component in a Backscatter reader, an integrated circuit, or a chip.

[0482] The Backscatter communication device provided in the embodiments of the present application can implement each process of the method embodiments Figure 10 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0483] Optionally, as shown in Figure 15 the embodiments of the present application also provide a communication device 1500, which includes a processor 1501, a memory 1502, and a program or 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 instruction is executed by the processor 1501 to implement each process of the above-mentioned first communication device side Backscatter communication method embodiments and achieve the same technical effects. When the communication device 1500 is a second communication device, the program or instruction is executed by the processor 1501 to implement each process of the above-mentioned second communication device side Backscatter communication method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0484] The embodiment of the present application further provides a first communication device, comprising a processor and a communication interface, wherein the communication interface is configured to send backscatter configuration information to a second communication device or not to perform a first backscatter operation in the case that a first condition is met; the second communication device is configured to modulate a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the second communication device to receive information; the backscatter configuration information is configuration information determined based on an in-device coexistence IDC problem, and the first backscatter operation includes at least one of the following: data transceiving between the first communication device and the second communication device; and carrier transmission for the second communication device to collect energy. The first communication device embodiment corresponds to the first communication device method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the first communication device embodiment and achieve the same technical effects. Specifically, Figure 16 A hardware structure diagram of a first communication device according to an embodiment of the present application.

[0485] The first communication device 1600 includes, but is not limited to, at least part of the components such as a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, and a processor 1610.

[0486] Those skilled in the art can understand that the first communication device 1600 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1610 through a power management system, so as to realize the functions of power management, discharge, and power consumption management through the power management system. Figure 16 The first communication device structure shown in the above table does not constitute a limitation on the first communication device, and the first communication device can include more or fewer components than those shown in the table, or combine certain components, or different component arrangements, which are not described herein again.

[0487] It should be understood that in the embodiments of the present application, the input unit 1604 can include a graphics processing unit (GPU) 16041 and a microphone 16042. The graphics processing unit 16041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1606 can include a display panel 16061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1607 includes a touch panel 16071 and other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 can include two parts of a touch detection device and a touch controller. The other input devices 16072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, and the like, which will not be described here.

[0488] In the embodiments of the present application, the radio frequency unit 1601 receives the downlink data from the network side device and processes it by the processor 1610. In addition, the radio frequency unit 1601 sends the uplink data to the network side device. Generally, the radio frequency unit 161 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0489] The memory 1609 can be used to store software programs or instructions and various data. The memory 1609 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, at least one application program or instruction required by a function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 1609 can include a high-speed random access memory, and can also include a non-volatile memory, which can 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. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0490] The processor 1610 can include one or more processing units; optionally, the processor 1610 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program or instruction, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1610.

[0491] The radio frequency unit 1601 is configured to send backscatter configuration information to the second communication device or not perform a first backscatter operation in a case where a first condition is met.

[0492] The second communication device is configured to modulate a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive the radio frequency signal reflected by the second communication device to receive information.

[0493] 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 the following: data transceiving with the second communication device; and carrier emission for the second communication device to collect energy.

[0494] 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.

[0495] Optionally, the backscatter configuration information includes at least one of the following:

[0496] An interference system type;

[0497] At least one available frequency point;

[0498] At least one affected channel;

[0499] At least one unavailable frequency band;

[0500] At least one unavailable frequency point;

[0501] Discontinuous reception DRX configuration information;

[0502] Discontinuous transmission DTX configuration information.

[0503] Optionally, in a case where the IDC problem is an IDC problem between a backscatter communication technology and a first communication technology, the interference 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 point includes at least one frequency point affected by the first communication technology.

[0504] Optionally, the DRX configuration information includes at least one of the following:

[0505] DRX cycle;

[0506] Backscatter energy collection duration;

[0507] Backscatter data transceiving duration.

[0508] Optionally, in a case where the IDC issue is an IDC issue between the Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on transmission configuration information of the first communication technology.

[0509] Optionally, the Backscatter energy collection duration and the Backscatter data transceiving duration are located in a non-transmitting time interval of the first communication technology.

[0510] Or

[0511] The Backscatter data transceiving duration is located in a non-transmitting time interval of the first communication technology.

[0512] Optionally, the non-transmitting time interval of the first communication technology is a DRX off interval of the first communication technology.

[0513] Optionally, the radio frequency unit 1601 is specifically configured to:

[0514] send, by the first communication device, Backscatter configuration information to a second communication device in a case where a second condition is met;

[0515] The second condition includes at least one of the following:

[0516] The first communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology;

[0517] Detecting an IDC issue between the Backscatter communication technology and the first communication technology;

[0518] The Backscatter configuration information changes;

[0519] The first communication device needs to perform a service related to the first communication technology in a case where the first communication device performs Backscatter communication;

[0520] The first communication device needs to perform Backscatter communication in a case where the first communication technology is in a connected state.

[0521] The Backscatter communication technology needs to use different frequencies from the first communication technology to transmit and receive data.

[0522] Optionally, the first condition comprises at least one of:

[0523] The first communication device works as a communication device corresponding to the first communication technology;

[0524] Detecting an IDC problem between the Backscatter communication technology and the first communication technology;

[0525] The first communication device needs to perform a service related to the first communication technology in the case of Backscatter communication;

[0526] The first communication technology is in a connected state;

[0527] The Backscatter communication technology needs to use different frequencies from the first communication technology to transmit and receive data.

[0528] Optionally, the first communication technology comprises at least one of: a third generation partnership project radio access technology (3GPP RAT); an air interface; a global navigation satellite system (GNSS); and a communication technology based on an industrial, scientific and medical (ISM) frequency band.

[0529] The embodiments of the present application also provide a second communication device, comprising a processor and a communication interface, wherein the communication interface is configured to receive Backscatter configuration information from a first communication device; wherein the second communication device is configured to perform signal modulation on a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in an environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information; and the Backscatter configuration information is configuration information determined based on an IDC problem. The second communication device embodiment corresponds to the second communication device method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the second communication device embodiment and achieve the same technical effects.

[0530] Specifically, the embodiments of the present application also provide a second communication device. As Figure 17As shown, the second communication device 1700 comprises an antenna 171, a radio frequency device 172, and a baseband device 173. The antenna 171 is connected to the radio frequency device 172. In the uplink direction, the radio frequency device 172 receives information through the antenna 171 and sends the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes the information to be sent and sends it to the radio frequency device 172, which processes the received information and sends it out through the antenna 171.

[0531] The above frequency band processing device can be located in the baseband device 173, and the method performed by the second communication device in the above embodiment can be implemented in the baseband device 173, which comprises a processor 174 and a memory 175.

[0532] The baseband device 173 may, for example, comprise at least one baseband board on which a plurality of chips are arranged, such as Figure 17 As shown, one of the chips is, for example, the processor 174, which is connected to the memory 175 to call the programs in the memory 175 and perform the operations of the second communication device shown in the above method embodiments.

[0533] The baseband device 173 can also comprise a network interface 176 for interacting with the radio frequency device 172, which interface may, for example, be a common public radio interface (CPRI).

[0534] Specifically, the second communication device of the embodiment of the present application further comprises instructions or programs stored on the memory 175 and executable on the processor 174, and the processor 174 calls the instructions or programs in the memory 175 to perform Figure 12 The methods performed by the modules shown above achieve the same technical effects, and thus will not be described here again.

[0535] The embodiment of the present application further provides a second communication device, comprising a processor and a communication interface, wherein the communication interface is configured to send Backscatter request information to a first communication device or not perform a second Backscatter operation in the case that a third condition is met; wherein the second communication device is configured to perform signal modulation on a radio frequency signal transmitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information; the Backscatter request information is request information determined based on an IDC problem; the second Backscatter operation comprises data transceiving with the first communication device, or the second Backscatter operation comprises 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 described above, 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 effects. Specifically, Figure 16 A hardware structure diagram of a second communication device according to an embodiment of the present application.

[0536] The second communication device 1800 includes, but is not limited to, at least part of components such as a radio frequency unit 1801, a network module 1802, an audio output unit 1803, an input unit 1804, a sensor 1805, a display unit 1806, a user input unit 1807, an interface unit 1808, a memory 1809, and a processor 1810.

[0537] Those skilled in the art can understand that the second communication device 1800 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1810 through a power management system, so as to realize functions such as power management, discharge, and power consumption management through the power management system. Figure 18 The second communication device structure shown in the figure does not constitute a limitation on the second communication device, and the second communication device can include more or fewer components than the figure, or combine certain components, or different component arrangements, which are not described here again.

[0538] It should be understood that in the embodiments of the present application, the input unit 1804 can include a graphics processing unit (GPU) 18041 and a microphone 18042. The graphics processing unit 18041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1806 can include a display panel 18061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1807 includes a touch panel 18071 and other input devices 18072. The touch panel 18071 is also called a touch screen. The touch panel 18071 can include two parts of a touch detection device and a touch controller. The other input devices 18072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, and the like, which will not be described here.

[0539] In the embodiments of the present application, the radio frequency unit 1801 receives the downlink data from the network side device and processes it by the processor 1810. In addition, the radio frequency unit 1801 sends the uplink data to the network side device. Generally, the radio frequency unit 181 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0540] The memory 1809 can be used to store software programs or instructions and various data. The memory 1809 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, at least one application program or instruction required by a function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 1809 can include a high-speed random access memory, and can also include a non-volatile memory, which can 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. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0541] The processor 1810 can include one or more processing units; optionally, the processor 1810 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface and an application program or instruction, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1810.

[0542] The radio frequency unit 1801 is configured to send Backscatter request information to the first communication device or not perform a second Backscatter operation in the case where the third condition is met.

[0543] The second communication device is configured to perform signal modulation on a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is configured to receive a radio frequency signal reflected by the second communication device to receive information.

[0544] The Backscatter request information is request information determined based on an IDC problem; and 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 emitted by the first communication device.

[0545] 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.

[0546] Optionally, the Backscatter request information includes at least one of the following:

[0547] In-device interference indication;

[0548] Backscatter communication state;

[0549] IDC auxiliary information;

[0550] Backscatter configuration preference information.

[0551] Optionally, the IDC auxiliary information includes at least one of the following:

[0552] Interfering system type;

[0553] At least one available frequency point;

[0554] At least one affected channel;

[0555] At least one unusable frequency range;

[0556] At least one unusable frequency point.

[0557] Optionally, in the IDC problem is an IDC problem between the Backscatter communication technology and the first communication technology, the interference 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 range includes at least one frequency range affected by the first communication technology, and the at least one unavailable frequency point includes at least one frequency point affected by the first communication technology.

[0558] Optionally, the Backscatter configuration preference information includes at least one of:

[0559] a Backscatter energy collection duration;

[0560] a Backscatter data transmission duration;

[0561] DTX preference information;

[0562] DRX preference information.

[0563] Optionally, the DRX preference information includes a DRX cycle, and the DRX cycle covers at least a first duration and a second duration.

[0564] The first duration is a DRX duration corresponding to the first communication technology, and the second duration includes a sum of a Backscatter energy collection duration and a Backscatter data transmission duration, or the second duration includes a Backscatter data transmission duration.

[0565] Optionally, the Backscatter communication state includes at least one of:

[0566] a data transmission suspension state, the data transmission suspension state indicating that the second communication device suspends data transmission;

[0567] a non-response state, the non-response state indicating that the second communication device does not respond to a command of the first communication device.

[0568] Optionally, the radio frequency unit 1801 is specifically configured to:

[0569] send Backscatter request information to the first communication device when a fourth condition is met;

[0570] The fourth condition includes at least one of:

[0571] the second communication device simultaneously works as a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology.

[0572] an IDC issue is detected between the Backscatter communication technology and the first communication technology;

[0573] the Backscatter request information changes;

[0574] the second communication device needs to perform a service related to the first communication technology in case of Backscatter communication;

[0575] the second communication device needs to perform Backscatter communication in case the first communication technology is in a connected state;

[0576] the Backscatter communication technology needs to use different frequencies for data transmission and reception than the first communication technology.

[0577] Optionally, the third condition comprises at least one of:

[0578] the second communication device works as a communication device corresponding to the first communication technology;

[0579] an in-device coexistence issue is detected between the Backscatter communication technology and the first communication technology;

[0580] the second communication device needs to perform a service related to the first communication technology in case of Backscatter communication;

[0581] the first communication technology is in a connected state;

[0582] the Backscatter communication technology needs to use different frequencies for data transmission and reception than the first communication technology.

[0583] Optionally, the first communication technology comprises at least one of: a 3GPP RAT; an air interface; a GNSS; a communication technology based on an ISM band.

[0584] Optionally, the radio frequency unit 1801 is further configured to:

[0585] receive first configuration information from the first communication device; wherein the first configuration information is used to configure whether the second communication device is allowed to send the Backscatter request information.

[0586] The embodiment of the present application further provides a first communication device, comprising a processor and a communication interface, wherein the communication interface is configured to receive Backscatter request information from a second communication device; wherein the second communication device is configured to perform signal modulation by using radio frequency signals transmitted by a device different from the second communication device or radio frequency signals in the environment to transmit information, and the first communication device is configured to receive radio frequency signals reflected by the second communication device to receive information; the Backscatter request information is request information determined based on an IDC problem. The first communication device embodiment corresponds to the first communication device method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the first communication device embodiment and achieve the same technical effects.

[0587] Specifically, the embodiment of the present application further provides a first communication device. As shown in the figure, Figure 19 The first communication device 1900 includes an antenna 191, a radio frequency device 192, and a baseband device 193. The antenna 191 is connected to the radio frequency device 192. In the uplink direction, the radio frequency device 192 receives information through the antenna 191 and sends the received information to the baseband device 193 for processing. In the downlink direction, the baseband device 193 processes the information to be sent and sends it to the radio frequency device 192, which processes the received information and sends it out through the antenna 191.

[0588] The above frequency band processing device can be located in the baseband device 193, and the method executed by the first communication device in the above embodiment can be implemented in the baseband device 193. The baseband device 193 includes a processor 194 and a memory 195.

[0589] The baseband device 193 may, for example, include at least one baseband board on which a plurality of chips are arranged, as shown in the figure, Figure 19 One of the chips is, for example, the processor 194, which is connected to the memory 195 to call programs in the memory 195 and execute the operations of the first communication device shown in the above method embodiment.

[0590] The baseband device 193 can further include a network interface 196 for interacting with the radio frequency device 192. The interface is, for example, a common public radio interface (CPRI).

[0591] Specifically, the first communication device of the embodiment of the present application further includes instructions or programs stored in the memory 195 and executable on the processor 194, and the processor 194 calls the instructions or programs in the memory 195 to execute Figure 14The method executed by each module shown and the same technical effect are achieved, and thus details are not described herein again.

[0592] The embodiment of the present application further provides a readable storage medium, which has a program or instructions stored thereon, the program or instructions are executed by a processor to realize each process of the first communication device side backscattering communication method embodiment or each process of the second communication device side backscattering communication method embodiment, and the same technical effect can be achieved, and thus details are not described herein again.

[0593] The processor is the processor in the first communication device in the embodiment of the present application or the processor in the second communication device in the embodiment of the present application. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0594] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or instructions to realize each process of the first communication device side backscattering communication method embodiment or each process of the second communication device side backscattering communication method embodiment, and the same technical effect can be achieved, and thus details are not described herein again.

[0595] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0596] It should be noted that in this document, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to the order of functions shown or discussed, and can also include functions performed in a substantially simultaneous manner or in the opposite order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0597] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product in essence or in the form of a part that contributes to the prior art, which is stored in a storage medium (such as a ROM / RAM, a magnetic disc, an optical disc), and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to execute the methods described in various embodiments of the present application.

[0598] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A backscatter communication method, characterized in that, include: The first communication device sends backscatter configuration information to the second communication device or does not perform the first backscatter operation if the first condition is met. The second communication device is used to modulate a signal using a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive a radio frequency signal reflected by the second communication device to receive information. The Backscatter configuration information is determined based on the coexistence IDC problem within the device. The first Backscatter operation includes at least one of the following: data transmission and reception with the second communication device; carrier transmission for the second communication device to collect energy; Wherein, the first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology; The first condition includes at least one of the following: The first communication device operates as a communication device corresponding to the first communication technology; An IDC problem was detected between the Backscatter communication technology and the first communication technology; When performing Backscatter communication, the first communication device needs to execute services related to the first communication technology. The first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

2. The method according to claim 1, characterized in that, The Backscatter configuration information includes at least one of the following: Types of interference systems; At least one available frequency point; At least one affected channel; At least one unavailable frequency band; At least one unavailable frequency; Discontinuous reception of DRX configuration information; Discontinuous transmission of DTX configuration information.

3. The method according to claim 2, characterized in that, In the case where the IDC problem is an IDC problem between Backscatter communication technology and the first communication technology, the interfering system type includes the 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 point includes at least one frequency point affected by the first communication technology.

4. The method according to claim 2, characterized in that, The DRX configuration information includes at least one of the following: DRX cycle; Backscatter energy harvesting duration; Backscatter data transmission and reception time.

5. The method according to claim 4, characterized in that, In the case where the IDC problem is an IDC problem between Backscatter communication technology and the first communication technology, the DRX configuration information is determined based on the transmission configuration information of the first communication technology.

6. The method according to claim 5, characterized in that, The Backscatter energy harvesting duration and the Backscatter data transmission and reception duration are located within the non-transmission time interval of the first communication technology; or The backscatter data transmission and reception duration is located within the non-transmission time interval of the first communication technology.

7. The method according to claim 6, characterized in that, The non-transmission time interval of the first communication technology is the DRX off interval of the first communication technology.

8. The method according to claim 1, characterized in that, The first communication device sends backscatter configuration information to the second communication device, including: Under the condition that the second condition is met, the first communication device sends Backscatter configuration information to the second communication device; The second condition includes at least one of the following: The first communication device can simultaneously function as both a communication device corresponding to the Backscatter communication technology and a communication device corresponding to the first communication technology. An IDC problem was detected between the Backscatter communication technology and the first communication technology; The Backscatter configuration information has changed; When performing Backscatter communication, the first communication device needs to execute services related to the first communication technology. The first communication device needs to perform backscatter communication when the first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

9. The method according to claim 1, characterized in that, The first communication technology includes at least one of the following: 3GPP RAT (3rd Generation Partnership Project Radio Access Technology); air interface; Global Navigation Satellite System (GNSS); and communication technology based on the Industrial, Scientific and Medical (ISM) band.

10. A backscatter communication method, characterized in that, include: The second communication device receives Backscatter configuration information from the first communication device; The second communication device is used to modulate signals using radio frequency signals emitted by a device different from the second communication device or radio frequency signals in the environment to transmit information; the first communication device is used to receive radio frequency signals reflected by the second communication device to receive information; the backscatter configuration information is configuration information determined based on IDC issues.

11. The method according to claim 10, characterized in that, The first communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology.

12. The method according to claim 11, characterized in that, The Backscatter configuration information includes at least one of the following: Types of interference systems; At least one available frequency point; At least one affected channel; At least one unavailable frequency band; At least one unavailable frequency; Discontinuous reception of DRX configuration information; Discontinuous transmission of DTX configuration information.

13. A backscatter communication method, characterized in that, include: The second communication device sends a Backscatter request message to the first communication device or does not perform the second Backscatter operation if the third condition is met. The second communication device is used to modulate a signal using a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the first communication device is used to receive a radio frequency signal reflected by the second communication device to receive information. The Backscatter request information is a request information determined based on the IDC problem. The Backscatter request information is used to request the first communication device to send Backscatter configuration information to the second communication device. The Backscatter configuration information is configuration information determined based on the coexistence of IDC within the device. The second Backscatter operation includes data transmission and reception with the first communication device, or the second Backscatter operation includes data transmission and reception with the first communication device and energy harvesting based on the carrier transmitted by the first communication device. The second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology. The third condition includes at least one of the following: The second communication device operates as a communication device corresponding to the first communication technology; An in-device coexistence problem was detected between the Backscatter communication technology and the first communication technology. When performing backscatter communication, the second communication device needs to execute services related to the first communication technology; The first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

14. The method according to claim 13, characterized in that, The Backscatter request information includes at least one of the following: Internal interference indication; Backscatter communication status; IDC auxiliary information; Backscatter configuration preferences.

15. The method according to claim 14, characterized in that, The IDC auxiliary information includes at least one of the following: Types of interference systems; At least one available frequency point; At least one affected channel; At least one unavailable frequency band; At least one unavailable frequency.

16. The method according to claim 15, characterized in that, In the case where the IDC problem is an IDC problem between Backscatter communication technology and the first communication technology, the interfering system type includes the 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 point includes at least one frequency point affected by the first communication technology.

17. The method according to claim 14, characterized in that, The Backscatter configuration preference information includes at least one of the following: Backscatter energy harvesting duration; Backscatter data transmission and reception duration; DTX preference information; DRX preference information.

18. The method according to claim 17, characterized in that, The DRX preference information includes the DRX period, which covers at least a first duration and a second duration. Wherein, the first duration is the DRX duration corresponding to the first communication technology, and the second duration includes the sum of the backscatter capability collection duration and the backscatter data transmission and reception duration, or the second duration includes the backscatter data transmission and reception duration.

19. The method according to claim 14, characterized in that, The Backscatter communication state includes at least one of the following: Data transmission suspended state, which indicates that the second communication device has suspended data transmission; The non-response state indicates that the second communication device does not respond to the command of the first communication device.

20. The method according to claim 13, characterized in that, The second communication device sends a Backscatter request message to the first communication device, including: If the fourth condition is met, the second communication device sends a Backscatter request message to the first communication device. The fourth condition includes at least one of the following: The second communication device can simultaneously function as both the communication device corresponding to the Backscatter communication technology and the communication device corresponding to the first communication technology. An IDC problem was detected between the Backscatter communication technology and the first communication technology; The Backscatter request information has changed; When performing backscatter communication, the second communication device needs to execute services related to the first communication technology; The second communication device needs to perform backscatter communication when the first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

21. The method according to claim 13, characterized in that, The first communication technology includes at least one of the following: 3GPP RAT; air interface; GNSS; and ISM band-based communication technology.

22. The method according to claim 13, characterized in that, The method further includes: The second communication device receives first configuration information from the first communication device; wherein the first configuration information is used to configure whether the second communication device is allowed to send the Backscatter request information.

23. A backscatter communication method, characterized in that, include: The first communication device receives a Backscatter request message from the second communication device; Wherein, the second communication device is used to modulate a signal using a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information; the first communication device is used to receive a radio frequency signal reflected by the second communication device to receive information; the backscatter request information is request information determined based on the IDC problem; The Backscatter request information is used to request the first communication device to send Backscatter configuration information to the second communication device. The Backscatter configuration information is configuration information determined based on the coexistence of IDCs within the device.

24. The method according to claim 23, characterized in that, The second communication device supports Backscatter communication technology and the first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology.

25. The method according to claim 23 or 24, characterized in that, The Backscatter request information includes at least one of the following: Internal interference indication; Backscatter communication status; IDC auxiliary information; Backscatter configuration preferences.

26. A backscatter communication device, characterized in that, include: The first transmitting module is used to send backscatter configuration information to the second communication device or not to perform the first backscatter operation if the first condition is met. The second communication device is used to modulate a signal using a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the backscatter communication device is used to receive the radio frequency signal reflected by the second communication device to receive information. The Backscatter configuration information is determined based on the coexistence IDC problem within the device. The first Backscatter operation includes at least one of the following: data transmission and reception with the second communication device; carrier transmission for the second communication device to collect energy; The backscatter communication device supports Backscatter communication technology and a first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology. The first condition includes at least one of the following: The backscatter communication device operates as a communication device corresponding to the first communication technology; An IDC problem was detected between the Backscatter communication technology and the first communication technology; The backscatter communication device needs to perform services related to the first communication technology when performing backscatter communication. The first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

27. The apparatus according to claim 26, characterized in that, The Backscatter configuration information includes at least one of the following: Types of interference systems; At least one available frequency point; At least one affected channel; At least one unavailable frequency band; At least one unavailable frequency; Discontinuous reception of DRX configuration information; Discontinuous transmission of DTX configuration information.

28. A backscatter communication device, characterized in that, include: The first receiving module is used to receive Backscatter configuration information from the first communication device; The backscatter communication device is used to modulate signals using radio frequency signals emitted by a device different from the backscatter communication device or radio frequency signals in the environment to transmit information; the first communication device is used to receive radio frequency signals reflected by the backscatter communication device to receive information; the backscatter configuration information is configuration information determined based on IDC issues.

29. A backscatter communication device, characterized in that, include: The second sending module is used to send a Backscatter request message to the first communication device or not to perform the second Backscatter operation if the third condition is met. The backscatter communication device is used to modulate a signal to transmit information using a radio frequency signal emitted by a device different from the backscatter communication device or a radio frequency signal in the environment, and the first communication device is used to receive the radio frequency signal reflected by the backscatter communication device to receive information. The Backscatter request information is a request information determined based on the IDC problem. The Backscatter request information is used to request the first communication device to send Backscatter configuration information to the backscatter communication device. The Backscatter configuration information is configuration information determined based on the coexistence of IDC within the device. The second Backscatter operation includes data transmission and reception with the first communication device, or the second Backscatter operation includes data transmission and reception with the first communication device and energy harvesting based on the carrier transmitted by the first communication device. The backscatter communication device supports Backscatter communication technology and a first communication technology, and the IDC problem is the IDC problem between the Backscatter communication technology and the first communication technology. The third condition includes at least one of the following: The backscatter communication device operates as a communication device corresponding to the first communication technology; An in-device coexistence problem was detected between the Backscatter communication technology and the first communication technology. The backscatter communication device needs to perform services related to the first communication technology when performing backscatter communication. The first communication technology is in a connected state; The Backscatter communication technology requires a different frequency for sending and receiving data compared to the first communication technology.

30. The apparatus according to claim 29, characterized in that, The Backscatter request information includes at least one of the following: Internal interference indication; Backscatter communication status; IDC auxiliary information; Backscatter configuration preferences.

31. A backscatter communication device, characterized in that, include: The third receiving module is used to receive Backscatter request information from the second communication device; The second communication device is used to modulate a signal using a radio frequency signal emitted by a device different from the second communication device or a radio frequency signal in the environment to transmit information, and the backscatter communication device is used to receive the radio frequency signal reflected by the second communication device to receive information. The Backscatter request information is a request information determined based on the IDC problem. The Backscatter request information is used to request the backscatter communication device to send Backscatter configuration information to the second communication device. The Backscatter configuration information is configuration information determined based on the coexistence of IDC within the device.

32. A first communication device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the backscatter communication method as claimed in any one of claims 1 to 9, or implement the steps of the backscatter communication method as claimed in any one of claims 23 to 25.

33. A second communication device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the backscatter communication method as described in any one of claims 10 to 12, or implement the steps of the backscatter communication method as described in any one of claims 13 to 22.

34. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the backscatter communication method as described in any one of claims 1 to 9, or the steps of the backscatter communication method as described in any one of claims 10 to 12, or the steps of the backscatter communication method as described in any one of claims 13 to 22, or the steps of the backscatter communication method as described in any one of claims 23 to 25.

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