Communication method and communication device

Abstract

Provided are a communication method and a communication device, the method comprising: a terminal device sending first information to a network device, the first information being used for determining a communication resource of the terminal device on a first sub-channel, the first sub-channel occupying a part of frequency domain resources of a first channel. The method in the embodiment of the invention is helpful for reducing the influence caused by out-of-band leakage.

Description

Communication method and communication device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Art

[0002] With the advancement of communication technology, some communication systems can divide the same spectrum (such as a channel) into multiple frequency bands, allowing terminal devices to perform both uplink and downlink transmissions simultaneously on these frequency bands. However, when a terminal device transmits a signal, out-of-band leakage occurs, which can interfere with other devices using the same spectrum.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a communication method and a communication device. The following describes various aspects of the embodiments of the present application.

[0005] In a first aspect, a communication method is provided, comprising: a terminal device sends first information to a network device, wherein the first information is used to determine a communication resource of the terminal device on a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel.

[0006] In a second aspect, a communication method is provided, including: a terminal device receives sixth information sent by a network device, the sixth information is used to indicate a target frequency area in a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel; the terminal device communicates with the network device on the first sub-channel through the target frequency area.

[0007] According to a third aspect, a communication method is provided, including: a network device receives first information sent by a terminal device, the first information is used to determine the communication resources of the terminal device on a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel.

[0008] In a fourth aspect, a communication method is provided, including: a network device determines a target frequency area in a first sub-channel, the first sub-channel occupies part of the frequency domain resources of the first channel; the network device sends sixth information to a terminal device, the sixth information being used to indicate the target frequency area.

[0009] In a fifth aspect, a communication device is provided, comprising: a communication unit for sending first information to a network device, wherein the first information is used to determine the communication resources of the device on a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel.

[0010] In the sixth aspect, a communication device is provided, including: a communication unit for receiving sixth information sent by a network device, wherein the sixth information is used to indicate a target frequency area in a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel; the communication unit is also used to communicate with the network device on the first sub-channel through the target frequency area.

[0011] In the seventh aspect, a communication device is provided, including: a communication unit for receiving first information sent by a terminal device, the first information being used to determine the communication resources of the terminal device on a first sub-channel, and the first sub-channel occupying part of the frequency domain resources of the first channel.

[0012] In the eighth aspect, a communication device is provided, including: a determination unit, used to determine a target frequency area in a first sub-channel, wherein the first sub-channel occupies part of the frequency domain resources of the first channel; a communication unit, used to send sixth information to a terminal device, wherein the sixth information is used to indicate the target frequency area.

[0013] In the ninth aspect, a communication device is provided, comprising a memory, a transceiver and a processor, wherein the memory is used to store programs, the processor sends and receives data through the transceiver, and the processor is used to call the program in the memory so that the communication device executes the method described in the first aspect or the second aspect.

[0014] In the tenth aspect, a communication device is provided, comprising a memory, a transceiver and a processor, wherein the memory is used to store programs, the processor sends and receives data through the transceiver, and the processor is used to call the program in the memory so that the communication device executes the method described in the third aspect or the fourth aspect.

[0015] In an eleventh aspect, a communication device is provided, comprising a processor configured to call a program from a memory so that the communication device executes the method described in the first aspect or the second aspect.

[0016] In a twelfth aspect, a communication device is provided, comprising a processor for calling a program from a memory so that the communication device executes the method described in the third aspect or the fourth aspect.

[0017] In a thirteenth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0018] In a fourteenth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the third aspect or the fourth aspect.

[0019] In a fifteenth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the first aspect or the second aspect.

[0020] In the sixteenth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the third aspect or the fourth aspect.

[0021] In the seventeenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect or the second aspect.

[0022] In an eighteenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the third aspect or the fourth aspect.

[0023] In the nineteenth aspect, a computer program is provided, which enables a computer to execute the method described in the first aspect or the second aspect.

[0024] In the twentieth aspect, a computer program is provided, which enables a computer to execute the method described in the third aspect or the fourth aspect.

[0025] In an embodiment of the present application, the terminal device sends first information to the network device, so that the network device can determine the communication resources of the terminal device on the first sub-channel based on the first information, thereby helping to reduce the impact of out-of-band leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is an example diagram of a wireless communication system used in an embodiment of the present application.

[0027] FIG2 is a schematic diagram of the uplink and downlink configurations of a TDD system in an embodiment of the present application.

[0028] FIG3 is a schematic diagram of a sub-channel division in an embodiment of the present application.

[0029] FIG4 is a schematic diagram of a transmit and receive spectrum of a terminal device in an embodiment of the present application.

[0030] FIG5 is a schematic diagram of a transmission signal spectrum of a terminal device in an embodiment of the present application.

[0031] FIG6 is a schematic diagram of the reduction in signal-to-noise ratio of other terminal devices caused by out-of-band leakage signals in an embodiment of the present application.

[0032] FIG7 is a schematic diagram of sensitivity degradation and network coverage reduction caused by out-of-band leakage signals in an embodiment of the present application.

[0033] FIG8 is a schematic flowchart of a communication method provided in one embodiment of the present application.

[0034] FIG9 is a schematic diagram of a sub-channel protection band in an embodiment of the present application.

[0035] FIG10 is a schematic diagram of leakage signal power intensity in an embodiment of the present application.

[0036] FIG11 is a schematic diagram showing the relationship between the transmit power and the out-of-band leakage signal power intensity in an embodiment of the present application.

[0037] FIG12 is a schematic diagram of sub-channel division based on out-of-band leakage in an embodiment of the present application.

[0038] FIG13 is a schematic diagram of the cell location division in an embodiment of the present application.

[0039] FIG14 is a schematic flowchart of interference avoidance based on a guard band in an embodiment of the present application.

[0040] FIG15 is a schematic flowchart of interference avoidance based on a guard band in an embodiment of the present application.

[0041] FIG16 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0042] FIG17 is a schematic structural diagram of a communication device provided in one embodiment of the present application.

[0043] FIG18 is a schematic structural diagram of a communication device provided in another embodiment of the present application.

[0044] FIG19 is a schematic structural diagram of a communication device provided in yet another embodiment of the present application.

[0045] FIG20 is a schematic structural diagram of a communication device provided in yet another embodiment of the present application.

[0046] FIG21 is a schematic structural diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The technical solution in this application will be described below with reference to the accompanying drawings.

[0048] FIG1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a user equipment (UE) 120. The network device 110 may communicate with the UE 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the UE 120 within the coverage area. The UE 120 may access a network (e.g., a wireless network) through the network device 110.

[0049] Figure 1 exemplarily shows a network device and two UEs. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include a different number of terminal devices within its coverage area, which is not limited in this embodiment of the present application. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.

[0050] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0051] The UE in the embodiments of the present application may also be referred to as a terminal device, an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The UE in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects, and machines, such as a handheld device or an in-vehicle device with wireless connection capabilities. The UE in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through a base station.

[0052] The network device in the embodiments of the present application may be a device for communicating with a UE, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a UE to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.

[0053] In some embodiments, the network device can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile network device, and one or more cells can move according to the location of the mobile network device. In other examples, the helicopter or drone can be configured to act as a device for communicating with another network device. In some embodiments, the network device can refer to a CU or a DU, or the network device can include a CU and a DU, or the network device can also include an AAU.

[0054] It should be understood that network devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the network devices and the scenarios in which they are used.

[0055] It should also be understood that all or part of the functions of the network device and UE in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0056] In some communication systems, a fixed uplink and downlink time slot configuration can be used in the same spectrum (such as the same channel). In this way, the terminal device can perform uplink transmission in the uplink time slot and downlink transmission in the downlink time slot. Without considering the special subframe, the uplink and downlink ratio of a typical TDD system can be as shown in Figure 2, where "U" in Figure 2 represents the uplink time slot and "D" represents the downlink time slot. The meanings of "U" and "D" in the subsequent figures of the embodiments of the present application are the same and will not be repeated in the subsequent embodiments. As shown in Figure 2, the uplink time slot and the downlink time slot of the same channel are staggered in time. However, due to the limitations of the fixed uplink and downlink time slot configurations, it may not be possible to meet the needs of different terminal devices.

[0057] Currently, one solution is to divide the spectrum of existing channels into sub-channels and configure different uplink and downlink ratios for each sub-channel to meet the diverse needs of different terminal devices. For example, a sub-channel can be allocated more uplink timeslots than downlink timeslots to meet the needs of high-uplink traffic, or an equal amount of uplink and downlink timeslots can be allocated to a sub-channel to meet the needs of a relatively balanced uplink and downlink traffic.

[0058] For example, the uplink and downlink ratio of the original channel 0 can be 2U4D, that is, the first and sixth time slots are "U", and the remaining time slots are "D". Channel 0 can be used for high-speed downlink services. Taking the example of a terminal device that needs to perform high-speed uplink services, as shown in Figure 3, a sub-channel 1 can be divided from the original channel 0 and configured with 5U1D for sub-channel 1, that is, the third time slot is "D" and the remaining time slots are "U", so that sub-channel 1 can be used for high-speed uplink services. The remaining spectrum in channel 0 can be used as sub-channel 2, and sub-channel 2 can be configured with the uplink and downlink ratio of the original channel 0 (i.e., 2U4D), so that sub-channel 2 can continue to be used for high-speed downlink services.

[0059] However, this method of dividing the channel into sub-channels also has a problem, that is, interference may occur between sub-channel 1 and sub-channel 2, and between sub-channel 1 and channel 0.

[0060] Figure 4 illustrates the relationship between frequency bands, channel 0 (the original channel), and subchannels. Subchannel 1 is a subset of channel 0. For example, before subchannel division, a terminal device transmits and receives according to channel 0 (e.g., 100 MHz bandwidth). At this point, all terminal devices in channel 0 are transmitting or receiving simultaneously. The interference caused by unwanted leakage from terminal devices to other users primarily affects the base station's reception, so the impact is minimal.

[0061] However, in addition to useful signals, the transmitted signals of terminal devices also contain unwanted leakage, which can cause interference to other terminal devices. For example, after the introduction of sub-channels, some terminal devices in channel 0 can be in the transmitting state (such as terminal devices operating in sub-channel 1), while other terminal devices can be in the receiving state; or other terminal devices can be in the transmitting state, while terminal devices in sub-channel 1 can be in the receiving state. In this case, the unwanted leakage generated by the terminal devices in the transmitting state will directly interfere with the terminal devices in the receiving state.

[0062] The causes of interference are described in detail below with reference to FIG. 5 to FIG. 7 .

[0063] When a terminal device transmits a signal, it generates useless out-of-band leakage, which can interfere with other terminal devices. For example, when a terminal device transmits a signal, it occupies a certain frequency spectrum. As shown in Figure 5, the useful signal occupies a certain channel. In addition to the useful signal, the transmission of the signal also generates some useless out-of-band leakage (such as out-of-band leakage signal). Out-of-band leakage is mainly caused by the nonlinear characteristics of signal transmitting devices such as power amplifiers (PAs). Taking the PA as an example, when the signal passes through the PA, in addition to the useful signal being amplified, useless out-of-band leakage signals are also generated. If these out-of-band leakage signals fall into the transmission channel of other terminal devices, they will cause interference to other terminal devices and reduce the signal-to-noise ratio (SNR) of the useful signal they transmit. As shown in Figure 6, the out-of-band leakage generated by UE1's transmission signal falls within UE2's transmission frequency band, which will reduce the SNR of UE2's transmission signal from SNR1 to SNR2.

[0064] The aforementioned embodiment, in which out-of-band leakage entering the transmit channel of other terminal devices reduces the signal-to-noise ratio of the transmitted signal, applies only to signal transmission. From the perspective of signal reception, as shown in Figure 7, when the received signal is interfered with by out-of-band leakage, the receiver's sensitivity deteriorates, making it unable to receive small signals. This results in sensitivity regression and a significant reduction in reception coverage.

[0065] In order to solve one or more of the above technical problems, the present application proposes a communication method and a communication device, which help to reduce the impact of out-of-band leakage.

[0066] The embodiments of the present application are described in detail below with reference to FIG8 to FIG16 .

[0067] FIG8 is a schematic flow chart of a communication method according to an embodiment of the present application. The method 800 shown in FIG8 may include step S810, which is as follows:

[0068] S810: The terminal device sends first information to the network device.

[0069] The first information may be used to determine the communication resources of the terminal device on the first sub-channel, or the first information may be used to determine the communication resources used by the terminal device on the first sub-channel.

[0070] The first subchannel may occupy part of the frequency domain resources of the first channel. The first channel may be channel 0 as described in the aforementioned embodiment, and the first subchannel may be subchannel 1 or subchannel 2 as described in the aforementioned embodiment. Communication resources may include resource blocks (RBs) in the first subchannel, transmit power on the first subchannel, and a frequency region in the first subchannel.

[0071] In some implementations, the first information may include the location and / or bandwidth of the transmit band in the first subchannel, and / or the location and / or bandwidth of the guard band. The transmit band can be used for transmission, while the guard band cannot be used for transmission. The bandwidth of the transmit band may refer to the size of the transmit band. For example, the bandwidth of the transmit band may be 5 MHz. The location of the transmit band may include the starting position and ending position of the transmit band. For example, the location of the transmit band may include the starting position of the transmit band being 20 MHz and the ending position being 30 MHz. The location and / or bandwidth of the guard band have similar meanings. For example, the transmit band and guard band in subchannel 1 (equivalent to the first subchannel) may be as shown in FIG9 .

[0072] The position and / or bandwidth of the guard band carried in the first information may be the position and / or bandwidth of a unilateral guard band, i.e., the position and / or bandwidth of the guard band on the left or right side of the transmit band as shown in FIG9 . This helps reduce the data carried in the first information and saves transmission resources.

[0073] Furthermore, to simplify terminal device reporting, the position and / or bandwidth of the guard bands that can be selected by the terminal device can also be predefined. For example, for a 20 MHz subchannel, the bandwidths of the optional unilateral guard bands (unilateral refers to each side) can be predefined as {1 MHz, 2 MHz, 3 MHz}, etc. The terminal device can then select a specific value from these values ​​for reporting.

[0074] Similarly, the position and / or bandwidth of the transmit band that the terminal device can select can also be predefined. For example, for a 20 MHz subchannel, the bandwidth of the transmit band that can be selected can be predefined as {10 MHz, 15 MHz, 20 MHz}, etc. The terminal device can select a specific value from them for reporting.

[0075] Accordingly, before S810, the terminal device may determine the transmit band and / or guard band in the first subchannel. For example, the terminal device may determine the position and / or bandwidth of the transmit band and / or the position and / or bandwidth of the guard band based on the out-of-band leakage signal strength indicator of the first subchannel. The out-of-band leakage signal strength indicator will be described in detail in subsequent embodiments and will not be further described here.

[0076] In some implementations, the first information may also include a power backoff value and / or a maximum transmit power capability on the first subchannel. The power backoff value may refer to a numerical value by which transmit power is reduced. For example, the power backoff value for subchannel 1 (equivalent to the first subchannel) may be as shown in FIG11 . Alternatively, the maximum transmit power capability may be represented by the maximum transmit power on the first subchannel.

[0077] Accordingly, before S810, the terminal device may determine the power backoff value and / or the maximum transmit power capability. For example, the terminal device may determine the power backoff value and / or the maximum transmit power capability value based on the out-of-band leakage signal strength indicator of the first subchannel.

[0078] The out-of-band leakage signal strength indicator of the first subchannel may refer to the strength indicator of the out-of-band leakage signal generated by the first subchannel. Optionally, the out-of-band leakage signal strength indicator may be different in different regions within a subchannel (or channel). For example, the out-of-band leakage signal strength indicator generated by subchannel 1 may be as shown by the dotted line in Figure 11, while the out-of-band leakage signal strength indicator may be different in different regions within subchannel 2.

[0079] Optionally, the first channel may further include a second sub-channel in addition to the first sub-channel. The second sub-channel may be in a transmitting state.

[0080] In some implementations, the first information may also include an out-of-band leakage signal strength indicator of the second subchannel and / or out-of-band leakage signal interference information of the second subchannel. The out-of-band leakage signal interference information may refer to the signal strength of the out-of-band leakage signal generated by the second subchannel measured by the terminal device.

[0081] In an embodiment of the present application, the terminal device sends first information to the network device, so that the network device can determine the communication resources of the terminal device on the first sub-channel based on the first information, thereby helping to reduce the impact of out-of-band leakage.

[0082] After S810, the method 800 may further include steps S820 and S830, which are specifically as follows:

[0083] S820: The network device determines a target communication resource on the first sub-channel according to the first information.

[0084] S830: The network device sends instruction information to the terminal device. The instruction information is used to indicate the target communication resource. The instruction information can be the second information, the third information, or the fourth information described below.

[0085] For example, depending on the content included in the first channel, S820 and S830 can be implemented in the following ways.

[0086] Method 1: Interference avoidance based on guard band

[0087] After receiving the first information, the network device can determine the target resource in the first subchannel based on the position and / or bandwidth of the transmit frequency band in the first subchannel and / or the position and / or bandwidth of the guard frequency band. The target resource may include one or more RBs. For example, assuming the bandwidth of the subchannel is 20 MHz, after receiving the first information, the network device can determine that within the 20 MHz subchannel, it can only configure the terminal device's transmit signal within the remaining 10 MHz range; alternatively, the terminal device can directly indicate that the available transmit frequency band size within the 20 MHz subchannel is 10 MHz.

[0088] Furthermore, the network device may send second information to the terminal device. The second information may be used to indicate the target resource.

[0089] After receiving the second information, the terminal device may communicate with the network device on the first sub-channel using the target resource.

[0090] It can be seen that in mode 1, the corresponding guard band position and / or bandwidth, and the transmit band position and / or bandwidth are determined according to the maximum transmit power capability of the terminal device.

[0091] Method 2: Interference avoidance based on transmit power control

[0092] After receiving the first information, the network device may determine the target transmit power on the first subchannel based on the power backoff value and / or the maximum transmit power capability. The power backoff value may be based on the power level of the terminal device and indicate the backoff value compared to its own power level. For example, the power backoff value may be 1dB, 2dB, 3dB, etc. The maximum transmit power capability may indicate the transmit power level of the terminal device. For example, the maximum transmit power may be 18dBm, 20dBm, 23dBm, etc.

[0093] Optionally, the target transmit power may be obtained by subtracting the power backoff value from the transmit power of the terminal device. Optionally, the target transmit power may not exceed the maximum transmit power value capability.

[0094] Furthermore, the network device may send third information to the terminal device. The third information may be used to indicate a target transmit power on the first subchannel.

[0095] After receiving the third information, the terminal device may communicate with the network device on the first subchannel according to the target transmit power.

[0096] As can be seen, in Method 2, the subchannel protection requirement is met by limiting the terminal's transmit power while maintaining the terminal's transmit bandwidth at its maximum. In other words, once the out-of-band leakage signal strength index outside the terminal's transmit bandwidth is determined, the corresponding out-of-band leakage signal strength index requirement can be met by reducing the transmit power.

[0097] Method 3: Interference avoidance based on receiving resource set division

[0098] After receiving the first information, the network device can determine the target frequency area in the first sub-channel based on the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information. Optionally, the network device can determine the target frequency area in the first sub-channel based on the downlink signal strength corresponding to the terminal device, and the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information. For example, as shown in Figure 12, if the out-of-band leakage signal strength indicator indicates that the signal strength of area 2 is 10dBm, and the downlink signal strength corresponding to the terminal device is 15dBm (15dBm is greater than 10dBm), the network device can determine that area 2 is the target frequency area.

[0099] As shown in Figure 12, the out-of-band leakage signal of sub-channel 1 falls into the interior of sub-channel 2, showing a gradually decreasing trend (the corresponding indicators may also show a gradually decreasing trend, as shown by the stepped dotted line in Figure 12). Accordingly, the interior of sub-channel 2 can be divided into area 1 that is relatively close to ion channel 1, area 3 that is relatively far from ion channel 1, and area 2 in the middle.

[0100] For ease of understanding, the cell coverage locations can be divided into three categories, as shown in Figure 13: center, sub-center, and edge. The center location (of the terminal device) has the strongest downlink signal strength and the strongest anti-interference capability; the edge location has the weakest downlink signal strength and the worst anti-interference capability; and the sub-center location is in the middle.

[0101] Combining the above division of cell coverage locations and the regional division of subchannel 2 frequency domain, the following corresponding relationship can be obtained:

[0102] Frequency region 1 is subject to the strongest interference. To reduce the impact of interference, it is more suitable for areas where the downlink reception signal of subchannel 2 is relatively strong, such as the center of the cell. Frequency region 3 is subject to the weakest interference and can be used anywhere in the cell, including the cell edge locations that are sensitive to interference. Frequency region 2 can be used in the center and sub-center locations of the cell.

[0103] By dividing and combining frequency regions (interference strength) and cell locations (downlink useful signal strength), high-interference frequency regions can be allocated to terminal devices in the center, where downlink signals are strong, while low-interference frequencies can be allocated more frequently to terminal devices at the cell edge, where downlink signals are weak. This ultimately ensures that all terminals within subchannel 2 have excellent anti-interference capabilities.

[0104] Furthermore, the network device may send fourth information to the terminal device. The fourth information may be used to indicate a target frequency region in the first subchannel. For example, as shown in FIG12 , subchannel 2 (equivalent to the first subchannel) is divided into multiple regions (frequency regions), and the target frequency region may be region 2.

[0105] After receiving the fourth information, the terminal device can communicate with the network device on the first sub-channel through the target frequency area.

[0106] In the above method 3, taking into account the characteristics that the out-of-band leakage of the terminal device can only be reduced but not eliminated, and the closer the out-of-band leakage is to the transmit frequency band, the stronger the useless radiation, the impact of the out-of-band leakage is reduced by fully scheduling the resources within the sub-channel.

[0107] In an embodiment of the present application, the out-of-band leakage signal strength indicator may be predefined; or, the out-of-band leakage signal strength indicator is determined by the terminal device from a plurality of candidate out-of-band leakage signal strength indicators sent by the network device. For example, the network device may send a plurality of candidate out-of-band leakage signal strength indicators to the terminal device when configuring the sub-channel. As shown in FIG10 , the out-of-band leakage signal strength indicator may indicate the signal strength indicator of the out-of-band leakage signal. Of course, (one) out-of-band leakage signal strength indicator may indicate the out-of-band leakage signal strength indicator of different areas in the sub-channel. For example, as shown in FIG12 , the out-of-band leakage signal strength indicators of different areas in sub-channel 2 are different.

[0108] Indicator 1 (out-of-band leakage signal strength indicator) can be predefined to correspond to a sub-channel bandwidth of 5MHz, indicator 2 can be predefined to correspond to a sub-channel bandwidth of 10MHz, and indicator 3 can be predefined to correspond to a sub-channel bandwidth of 20MHz. Then, the terminal device can determine the out-of-band leakage signal strength indicator based on different sub-channel bandwidths; or, the network device can also send indicator 1, indicator 2, and indicator 3 (i.e., multiple candidate out-of-band leakage signal strength indicators) to the terminal device, and then the terminal device can select the out-of-band leakage signal strength indicator from them.

[0109] Optionally, the out-of-band leakage signal strength indicator may include: absolute power intensity and / or relative power intensity.

[0110] The absolute power intensity may refer to the power intensity value of the out-of-band leakage signal in the first subchannel. For example, when power density is used as an indicator, the out-of-band leakage signal intensity indicator may be -50dBm / MHz; when the total power of the out-of-band leakage signal is used as an indicator, the out-of-band leakage signal intensity indicator may be -30dBm.

[0111] Relative power intensity can refer to the ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first subchannel. This can be a ratio when using a linear value, or a difference when using a dB value. For example, using power density as an indicator, assuming the out-of-band leakage signal intensity indicator is no less than 30 dB, this means that the leakage signal power density of the terminal device in subchannel 2 must be at least 30 dB lower than the transmit signal power density of the terminal device in subchannel 1.

[0112] The power density may be average power density, i.e., the ratio of total power to total bandwidth. For example, the power intensity of the out-of-band leakage signal may include the ratio of the power intensity of the out-of-band leakage signal to the bandwidth of the first subchannel other than the first subchannel. The transmit power may include the ratio of the transmit power to the bandwidth of the first subchannel and / or the ratio of the transmit power to the bandwidth of the transmit frequency band in the first subchannel.

[0113] Alternatively, the power density may be absolute power density, that is, the power intensity per integrated bandwidth (e.g., per 1 MHz). For example, the power intensity of the out-of-band leakage signal may include the power intensity of the out-of-band leakage signal per integrated bandwidth in bandwidths other than the first subchannel in the first subchannel. The transmit power may include the power intensity of the transmit power per integrated bandwidth in the bandwidth of the first subchannel.

[0114] Furthermore, an activation and deactivation mechanism for interference avoidance can be introduced. For example, if a network device configures subchannel 1 for a terminal, but there are no subchannel 2 terminal devices in the terminal's current operating area, the network device can instruct the terminal to deactivate the interference avoidance mechanism. This means that the terminal can use all frequency bands within subchannel 1 for transmission, and the transmission power can reach full power.

[0115] The network device can instruct the terminal device to activate or deactivate in the following ways:

[0116] For example, the network device may send fifth information to the terminal device. The fifth information may be used to activate the interference avoidance mechanism, or the fifth information may be used to deactivate the interference avoidance mechanism. For example, the fifth information may be used to trigger the terminal device to report the first information.

[0117] In some implementations, if the network device configures an out-of-band leakage signal strength indicator for the terminal device, it may indicate that the interference avoidance mechanism is activated; if the out-of-band leakage signal strength indicator is not configured, it may indicate that the interference avoidance mechanism is not activated. In other words, the fifth information may include the out-of-band leakage signal strength indicator sent by the network device. Alternatively, the network device may also explicitly indicate to the terminal device whether to activate or deactivate the interference avoidance mechanism when the out-of-band leakage signal strength indicator is configured.

[0118] In the above-mentioned method 3, the terminal device needs to report the out-of-band leakage signal strength indicator and / or out-of-band leakage signal interference information to the network device so that the network device can determine the target frequency region in the first sub-channel. However, in an embodiment of the present application, the network device can also directly determine the target frequency region in the first sub-channel based on the predefined or preconfigured out-of-band leakage signal strength indicator without the terminal device reporting.

[0119] The interference avoidance process in the above-mentioned method 1 and method 2 is illustrated below with reference to FIG14 and FIG15 .

[0120] Figure 14 is a schematic flow chart of interference avoidance based on guard bands in an embodiment of the present application. The method 1400 shown in Figure 14 may include steps S1410 to S1450, which are specifically as follows:

[0121] S1410: The terminal device reports sub-channel capabilities to the network device.

[0122] The sub-channel capability may indicate whether the terminal device supports dividing sub-channels within its corresponding channel, and / or the sub-channel capability may also indicate whether the terminal device is capable of operating within a sub-channel.

[0123] S1420: The network device sends configuration information to the terminal device.

[0124] The configuration information can be used to configure the bandwidth and / or location of the sub-channel. The configuration information can carry an out-of-band leakage signal strength indicator. For example, when configuring the sub-channel, the network device can send multiple candidate out-of-band leakage signal strength indicators to the terminal device.

[0125] S1430: The terminal device reports the radio frequency band and / or the protection band to the network device.

[0126] The terminal device may report the position and / or bandwidth of the transmit frequency band in the sub-channel, and / or the position and / or bandwidth of the guard band.

[0127] S1440: The network device configures target RB resources in the sub-channel for the terminal device.

[0128] The network device may determine the target RB resource in the subchannel based on the position and / or bandwidth of the transmit band and / or the position and / or bandwidth of the guard band in the subchannel. The terminal device may use the target RB resource to communicate with the network device.

[0129] S1450, the terminal device communicates with the network device based on the target RB resources.

[0130] FIG15 is a schematic flow chart of interference avoidance based on a guard band in an embodiment of the present application. The method 1500 shown in FIG15 may include steps S1510 to S1550, which are specifically as follows:

[0131] S1510, the terminal device reports the sub-channel capability to the network device.

[0132] The sub-channel capability may indicate whether the terminal device supports dividing sub-channels within its corresponding channel, and / or the sub-channel capability may also indicate whether the terminal device is capable of operating within a sub-channel.

[0133] S1520: The network device sends configuration information to the terminal device.

[0134] The configuration information can be used to configure the bandwidth and / or location of the sub-channel. The configuration information can carry an out-of-band leakage signal strength indicator. For example, when configuring the sub-channel, the network device can send multiple candidate out-of-band leakage signal strength indicators to the terminal device.

[0135] S1530: The terminal device reports the maximum transmit power capability to the network device.

[0136] The maximum transmit power capability can be represented by a maximum transmit power value or a power backoff value. The power backoff value can use the terminal device's power level as a reference value, indicating the backoff value compared to its own power level. For example, the power backoff value can be 1dB, 2dB, 3dB, etc. The maximum transmit power value can indicate the transmit power level of the terminal. For example, the maximum transmit power can be 18dBm, 20dBm, 23dBm, etc.

[0137] S1540, the network device schedules the target transmit power in the sub-channel for the terminal device.

[0138] The target transmit power does not exceed the maximum transmit power capability. For example, the target transmit power may be obtained by subtracting the power backoff value from the maximum transmit power value of the terminal device.

[0139] S1550, the terminal device communicates with the network device according to the target transmission power.

[0140] Figure 16 is a schematic flow chart of a communication method according to an embodiment of the present application. The method 1600 shown in Figure 16 may include steps S1610 and S1620, as follows:

[0141] S1610, the network device determines the target frequency region in the first subchannel.

[0142] Optionally, the network device may determine the target frequency region based on an out-of-band leakage signal strength indicator. The out-of-band leakage signal strength indicator may be predefined or preconfigured. For example, the network device may determine the target frequency region based on the downlink signal strength corresponding to the terminal device and the out-of-band leakage signal strength indicator.

[0143] S1620: The network device sends sixth information to the terminal device.

[0144] The sixth information may be used to indicate a target frequency region in the first subchannel.

[0145] Furthermore, the terminal device may communicate with the network device on the first sub-channel through the target frequency region.

[0146] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 16 , and the device embodiment of the present application is described in detail below in conjunction with Figures 17 to 21 . It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, and therefore, for portions not described in detail, reference can be made to the above method embodiment.

[0147] FIG17 is a schematic structural diagram of a communication device provided in an embodiment of the present application. As shown in FIG17 , the device 1700 includes a communication unit 1710, which is specifically as follows:

[0148] The communication unit 1710 is configured to send first information to the network device, where the first information is used to determine the communication resources of the apparatus on a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.

[0149] Optionally, the first information includes the position and / or bandwidth of the transmit band in the first sub-channel, and / or the position and / or bandwidth of the guard band; the device 1700 also includes a determination unit 1720, and before sending the first information to the network device, the determination unit 1720 is used to: determine the position and / or bandwidth of the transmit band, and / or the position and / or bandwidth of the guard band based on the out-of-band leakage signal strength index of the first sub-channel.

[0150] Optionally, after sending the first information to the network device, the communication unit 1710 is also used to: receive second information sent by the network device, the second information is used to indicate the target resources in the first subchannel, the target resources including one or more resource blocks RB; and use the target resources to communicate with the network device.

[0151] Optionally, the first information includes a power backoff value and / or a maximum transmit power capability on the first sub-channel; the device 1700 also includes a determination unit 1720, and before sending the first information to the network device, the determination unit 1720 is used to: determine the power backoff value and / or the maximum transmit power capability based on the out-of-band leakage signal strength indicator of the first sub-channel.

[0152] Optionally, after sending the first information to the network device, the communication unit 1710 is also used to: receive third information sent by the network device, the third information being used to indicate the target transmission power on the first sub-channel; and communicate with the network device on the first sub-channel according to the target transmission power.

[0153] Optionally, the target transmit power is obtained by subtracting the power backoff value from the transmit power of the device, and / or the target transmit power does not exceed the maximum transmit power capability.

[0154] Optionally, the first channel also includes a second sub-channel in addition to the first sub-channel, the second sub-channel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second sub-channel and / or out-of-band leakage signal interference information of the second sub-channel.

[0155] Optionally, after sending the first information to the network device, the communication unit 1710 is also used to: receive fourth information sent by the network device, the fourth information being used to indicate a target frequency area in the first sub-channel; and communicate with the network device on the first sub-channel through the target frequency area.

[0156] Optionally, the out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the apparatus from a plurality of candidate out-of-band leakage signal strength indicators sent by the network device.

[0157] Optionally, the out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

[0158] Optionally, the absolute power intensity is a power intensity value of an out-of-band leakage signal in the first sub-channel, and the relative power intensity is a ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

[0159] Optionally, the power intensity of the out-of-band leakage signal includes: the ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or the power intensity of the out-of-band leakage signal on each integral bandwidth in the other bandwidths; the transmit power includes: the ratio of the transmit power to the bandwidth of the first subchannel, the ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or the power intensity of the transmit power on each integral bandwidth in the bandwidth of the first subchannel.

[0160] Optionally, the communication unit 1710 is further used to: receive fifth information sent by the network device, where the fifth information is used to trigger the apparatus to report the first information.

[0161] Optionally, the fifth information includes an out-of-band leakage signal strength indicator sent by the network device.

[0162] FIG18 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 1800 in FIG18 includes a communication unit 1810, which is as follows:

[0163] A communication unit 1810 is configured to receive sixth information sent by a network device, where the sixth information is used to indicate a target frequency region in a first subchannel, where the first subchannel occupies part of frequency domain resources of the first channel;

[0164] The communication unit 1810 is further configured to communicate with the network device on the first sub-channel via the target frequency region.

[0165] FIG19 is a schematic structural diagram of a communication device provided in an embodiment of the present application. As shown in FIG19 , the device 1900 includes a communication unit 1910, which is specifically as follows:

[0166] The communication unit 1910 is configured to receive first information sent by a terminal device, where the first information is used to determine a communication resource of the terminal device on a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.

[0167] Optionally, the first information includes a position and / or bandwidth of a transmission band and / or a position and / or bandwidth of a guard band in the first sub-channel.

[0168] Optionally, the apparatus 1900 further includes a determination unit 1920, which, after receiving the first information sent by the terminal device, is used to: determine the target resources in the first subchannel according to the position and / or bandwidth of the transmission band, and / or the position and / or bandwidth of the protection band, wherein the target resources include one or more resource blocks RB; the communication unit 1910 is further used to: send second information to the terminal device, wherein the second information is used to indicate the target resources.

[0169] Optionally, the first information includes a power backoff value and / or a maximum transmit power capability on the first subchannel.

[0170] Optionally, the device 1900 also includes a determination unit 1920. After receiving the first information sent by the terminal device, the determination unit 1920 is used to: determine the target transmit power on the first subchannel based on the power backoff value and / or the maximum transmit power capability; the communication unit 1910 is used to: send third information to the terminal device, and the third information is used to indicate the target transmit power.

[0171] Optionally, the target transmit power is obtained by subtracting the power backoff value from the transmit power of the terminal device, and / or the target transmit power is less than or equal to the maximum transmit power capability.

[0172] Optionally, the first channel also includes a second sub-channel in addition to the first sub-channel, the second sub-channel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second sub-channel and / or out-of-band leakage signal interference information of the second sub-channel.

[0173] Optionally, the device 1900 also includes a determination unit 1920. After receiving the first information sent by the terminal device, the determination unit 1920 is used to: determine the target frequency area in the first subchannel based on the out-of-band leakage signal strength index and / or the out-of-band leakage signal interference information; the communication unit 1910 is also used to: send fourth information to the terminal device, and the fourth information is used to indicate the target frequency area.

[0174] Optionally, the determining unit 1920 is specifically configured to determine the target frequency region according to the downlink signal strength corresponding to the terminal device, the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information.

[0175] Optionally, the out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the terminal device from a plurality of candidate out-of-band leakage signal strength indicators sent by the apparatus.

[0176] Optionally, the out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

[0177] Optionally, the absolute power intensity is a power intensity value of an out-of-band leakage signal in the first sub-channel, and the relative power intensity is a ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

[0178] Optionally, the power intensity of the out-of-band leakage signal includes: the ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or the power intensity of the out-of-band leakage signal on each integral bandwidth in the other bandwidths; the transmit power includes: the ratio of the transmit power to the bandwidth of the first subchannel, the ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or the power intensity of the transmit power on each integral bandwidth in the bandwidth of the first subchannel.

[0179] Optionally, the communication unit 1910 is further used to: send fifth information to the terminal device, where the fifth information is used to trigger the terminal device to report the first information.

[0180] Optionally, the fifth information includes an out-of-band leakage signal strength indicator sent by the device.

[0181] Figure 20 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 2000 in Figure 20 includes a determination unit 2010 and a communication unit 2020, as follows:

[0182] A determining unit 2010 is configured to determine a target frequency region in a first subchannel, where the first subchannel occupies part of frequency domain resources of the first channel;

[0183] The communication unit 2020 is used to send sixth information to the terminal device, where the sixth information is used to indicate the target frequency area.

[0184] Optionally, the first channel further includes a second sub-channel in addition to the first sub-channel, and the second sub-channel is in a transmitting state. The determining unit 2010 is specifically configured to determine the target frequency region according to the out-of-band leakage signal strength indicator.

[0185] Optionally, the determining unit 2010 is specifically configured to determine the target frequency region according to the downlink signal strength corresponding to the terminal device and the out-of-band leakage signal strength indicator.

[0186] Figure 21 is a schematic diagram of the structure of an apparatus provided in one embodiment of the present application. The dashed lines in Figure 21 indicate that the unit or module is optional. Apparatus 2100 may be used to implement the method described in the above method embodiment. Apparatus 2100 may be a chip or a communication device.

[0187] The device 2100 may include one or more processors 2110. The processor 2110 may support the device 2100 to implement the method described in the above method embodiment. The processor 2110 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0188] The apparatus 2100 may further include one or more memories 2120. The memories 2120 store programs that can be executed by the processor 2110, causing the processor 2110 to perform the methods described in the above method embodiments. The memories 2120 may be independent of the processor 2110 or integrated into the processor 2110.

[0189] The apparatus 2100 may further include a transceiver 2130. The processor 2110 may communicate with other devices or chips via the transceiver 2130. For example, the processor 2110 may transmit and receive data with other devices or chips via the transceiver 2130.

[0190] The present invention also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the communication device provided in the present invention, and the program enables a computer to execute the method performed by the communication device in each embodiment of the present invention.

[0191] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in the present application, and the program causes a computer to execute the method performed by the communication device in each embodiment of the present application.

[0192] The embodiments of the present application also provide a computer program. The computer program can be applied to the communication device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the communication device in each embodiment of the present application.

[0193] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0194] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0195] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0196] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0197] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0198] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0199] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0200] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: The terminal device sends first information to the network device, where the first information is used to determine the communication resources of the terminal device on a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.

2. The method according to claim 1, characterized in that The first information includes a position and / or bandwidth of a transmission band and / or a position and / or bandwidth of a guard band in the first subchannel; Before the terminal device sends the first information to the network device, the method further includes: The terminal device determines the position and / or bandwidth of the transmission band and / or the position and / or bandwidth of the protection band according to the out-of-band leakage signal strength indicator of the first sub-channel.

3. The method according to claim 2, characterized in that After the terminal device sends the first information to the network device, the method further includes: The terminal device receives second information sent by the network device, where the second information is used to indicate a target resource in the first subchannel, where the target resource includes one or more resource blocks (RBs); The terminal device communicates with the network device using the target resource.

4. The method according to claim 1, wherein The first information includes a power backoff value and / or a maximum transmit power capability on the first subchannel. Before the terminal device sends the first information to the network device, the method further includes: The terminal device determines the power backoff value and / or the maximum transmit power capability based on the out-of-band leakage signal strength indicator of the first sub-channel.

5. The method according to claim 4, characterized in that After the terminal device sends the first information to the network device, the method further includes: The terminal device receives third information sent by the network device, where the third information is used to indicate a target transmit power on the first subchannel; The terminal device communicates with the network device on the first sub-channel according to the target transmission power.

6. The method according to claim 5, characterized in that The target transmit power is obtained by subtracting the power backoff value from the transmit power of the terminal device, and / or the target transmit power does not exceed the maximum transmit power capability.

7. The method according to claim 1, characterized in that The first channel also includes a second subchannel in addition to the first subchannel, the second subchannel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second subchannel and / or out-of-band leakage signal interference information of the second subchannel.

8. The method according to claim 7, characterized in that After the terminal device sends the first information to the network device, the method further includes: The terminal device receives fourth information sent by the network device, where the fourth information is used to indicate a target frequency region in the first sub-channel; The terminal device communicates with the network device on the first sub-channel through the target frequency area.

9. The method according to any one of claims 2 to 8, characterized in that The out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the terminal device from a plurality of candidate out-of-band leakage signal strength indicators sent by the network device.

10. The method according to claim 9, characterized in that The out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

11. The method according to claim 10, characterized in that The absolute power intensity is the power intensity value of the out-of-band leakage signal in the first sub-channel, and the relative power intensity is the ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

12. The method according to claim 11, characterized in that The power intensity of the out-of-band leakage signal includes: a ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or a power intensity of the out-of-band leakage signal over each integrated bandwidth in the other bandwidths. The transmit power includes: a ratio of the transmit power to the bandwidth of the first subchannel, a ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or a power intensity of the transmit power over each integrated bandwidth in the bandwidth of the first subchannel.

13. The method according to any one of claims 1 to 12, characterized in that The method further comprises: The terminal device receives fifth information sent by the network device, where the fifth information is used to trigger the terminal device to report the first information.

14. The method according to claim 13, characterized in that The fifth information includes an out-of-band leakage signal strength indicator sent by the network device.

15. A communication method, characterized in that: include: The terminal device receives sixth information sent by the network device, where the sixth information is used to indicate a target frequency region in the first subchannel, where the first subchannel occupies part of the frequency domain resources of the first channel; The terminal device communicates with the network device on the first sub-channel through the target frequency area.

16. A communication method, characterized in that: include: The network device receives first information sent by the terminal device, where the first information is used to determine the communication resources of the terminal device on a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.

17. The method according to claim 16, characterized in that The first information includes a position and / or bandwidth of a transmission band and / or a position and / or bandwidth of a guard band in the first sub-channel.

18. The method according to claim 17, characterized in that After the network device receives the first information sent by the terminal device, the method further includes: The network device determines, according to the position and / or bandwidth of the transmit frequency band and / or the position and / or bandwidth of the guard frequency band, a target resource in the first subchannel, where the target resource includes one or more resource blocks (RBs); The network device sends second information to the terminal device, where the second information is used to indicate the target resource.

19. The method according to claim 16, wherein The first information includes a power backoff value and / or a maximum transmit power capability on the first subchannel.

20. The method according to claim 19, characterized in that After the network device receives the first information sent by the terminal device, the method further includes: The network device determines, according to the power backoff value and / or the maximum transmit power capability, a target transmit power on the first subchannel; The network device sends third information to the terminal device, where the third information is used to indicate the target transmit power.

21. The method according to claim 20, characterized in that The target transmit power is obtained by subtracting the power backoff value from the transmit power of the terminal device, and / or the target transmit power is less than or equal to the maximum transmit power capability.

22. The method according to claim 16, wherein The first channel also includes a second subchannel in addition to the first subchannel, the second subchannel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second subchannel and / or out-of-band leakage signal interference information of the second subchannel.

23. The method according to claim 22, characterized in that After the network device receives the first information sent by the terminal device, the method further includes: The network device determines, according to the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information, a target frequency region in the first sub-channel; The network device sends fourth information to the terminal device, where the fourth information is used to indicate the target frequency area.

24. The method according to claim 23, wherein The network device determines, according to the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information, a target frequency region in the first sub-channel, including: The network device determines the target frequency region according to the downlink signal strength corresponding to the terminal device, the out-of-band leakage signal strength index and / or the out-of-band leakage signal interference information.

25. The method according to any one of claims 22 to 24, characterized in that The out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the terminal device from a plurality of candidate out-of-band leakage signal strength indicators sent by the network device.

26. The method according to claim 25, characterized in that The out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

27. The method according to claim 26, characterized in that The absolute power intensity is the power intensity value of the out-of-band leakage signal in the first sub-channel, and the relative power intensity is the ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

28. The method according to claim 27, characterized in that The power intensity of the out-of-band leakage signal includes: a ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or a power intensity of the out-of-band leakage signal over each integrated bandwidth in the other bandwidths. The transmit power includes: a ratio of the transmit power to the bandwidth of the first subchannel, a ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or a power intensity of the transmit power over each integrated bandwidth in the bandwidth of the first subchannel.

29. The method according to any one of claims 16 to 28, characterized in that The method further comprises: The network device sends fifth information to the terminal device, where the fifth information is used to trigger the terminal device to report the first information.

30. The method according to claim 29, wherein The fifth information includes an out-of-band leakage signal strength indicator sent by the network device.

31. A communication method, characterized in that: include: The network device determines a target frequency region in a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel; The network device sends sixth information to the terminal device, where the sixth information is used to indicate the target frequency area.

32. The method according to claim 31, characterized in that The first channel further includes a second sub-channel in addition to the first sub-channel, the second sub-channel is in a transmitting state, and the network device determines a target frequency region in the first sub-channel, including: The network device determines the target frequency region according to an out-of-band leakage signal strength indicator.

33. The method according to claim 32, characterized in that The network device determines the target frequency region according to the out-of-band leakage signal strength indicator, including: The network device determines the target frequency region based on the downlink signal strength corresponding to the terminal device and the out-of-band leakage signal strength index.

34. A communication device, characterized in that: include: The communication unit is configured to send first information to a network device, where the first information is used to determine communication resources of the apparatus on a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.

35. The device according to claim 34, characterized in that The first information includes a position and / or bandwidth of a transmission band and / or a position and / or bandwidth of a guard band in the first subchannel; The apparatus further includes a determining unit, which is configured to: The position and / or bandwidth of the transmit frequency band and / or the position and / or bandwidth of the guard frequency band are determined according to the out-of-band leakage signal strength indicator of the first sub-channel.

36. The device according to claim 35, characterized in that After sending the first information to the network device, the communication unit is further configured to: receiving second information sent by the network device, where the second information is used to indicate a target resource in the first subchannel, where the target resource includes one or more resource blocks (RBs); Communicate with the network device using the target resource.

37. The device according to claim 34, characterized in that The first information includes a power backoff value and / or a maximum transmit power capability on the first subchannel; The apparatus further includes a determining unit, which is configured to: The power backoff value and / or the maximum transmit power capability are determined according to an out-of-band leakage signal strength indicator of the first subchannel.

38. The device according to claim 37, characterized in that After sending the first information to the network device, the communication unit is further configured to: Receive third information sent by the network device, where the third information is used to indicate a target transmit power on the first sub-channel; and communicate with the network device on the first sub-channel according to the target transmit power.

39. The device according to claim 38, characterized in that The target transmit power is obtained by subtracting the power backoff value from the transmit power of the device, and / or the target transmit power does not exceed the maximum transmit power capability.

40. The device according to claim 34, wherein The first channel also includes a second subchannel in addition to the first subchannel, the second subchannel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second subchannel and / or out-of-band leakage signal interference information of the second subchannel.

41. The device according to claim 40, characterized in that After sending the first information to the network device, the communication unit is further configured to: Receive fourth information sent by the network device, where the fourth information is used to indicate a target frequency region in the first sub-channel; and communicate with the network device on the first sub-channel through the target frequency region.

42. The device according to any one of claims 35 to 41, characterized in that The out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the apparatus from a plurality of candidate out-of-band leakage signal strength indicators sent by the network device.

43. The device according to claim 42, characterized in that The out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

44. The device according to claim 43, characterized in that The absolute power intensity is the power intensity value of the out-of-band leakage signal in the first sub-channel, and the relative power intensity is the ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

45. The device according to claim 44, characterized in that The power intensity of the out-of-band leakage signal includes: a ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or a power intensity of the out-of-band leakage signal over each integrated bandwidth in the other bandwidths. The transmit power includes: a ratio of the transmit power to the bandwidth of the first subchannel, a ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or a power intensity of the transmit power over each integrated bandwidth in the bandwidth of the first subchannel.

46. ​​The device according to any one of claims 34 to 45, characterized in that The communication unit is further configured to: Receive fifth information sent by the network device, where the fifth information is used to trigger the apparatus to report the first information.

47. The device according to claim 46, characterized in that The fifth information includes an out-of-band leakage signal strength indicator sent by the network device.

48. A communication device, characterized in that include: a communication unit, configured to receive sixth information sent by a network device, wherein the sixth information is used to indicate a target frequency region in a first sub-channel, where the first sub-channel occupies part of frequency domain resources of the first channel; The communication unit is further configured to communicate with the network device on the first sub-channel via the target frequency region.

49. A communication device, characterized in that include: A communication unit is used to receive first information sent by a terminal device, where the first information is used to determine the communication resources of the terminal device on a first sub-channel, and the first sub-channel occupies part of the frequency domain resources of the first channel.

50. The device according to claim 49, characterized in that The first information includes a position and / or bandwidth of a transmission band and / or a position and / or bandwidth of a guard band in the first sub-channel.

51. The device according to claim 50, characterized in that The apparatus further includes a determining unit, which is configured to, after receiving the first information sent by the terminal device,: Determine a target resource in the first subchannel according to the position and / or bandwidth of the transmit frequency band and / or the position and / or bandwidth of the guard frequency band, where the target resource includes one or more resource blocks (RBs); The communication unit is further used to: send second information to the terminal device, where the second information is used to indicate the target resource.

52. The device according to claim 49, characterized in that The first information includes a power backoff value and / or a maximum transmit power capability on the first subchannel.

53. The device according to claim 52, characterized in that The apparatus further includes a determining unit, which is configured to, after receiving the first information sent by the terminal device,: determining a target transmit power on the first subchannel according to the power backoff value and / or the maximum transmit power capability; The communication unit is used to: send third information to the terminal device, where the third information is used to indicate the target transmission power.

54. The device according to claim 53, characterized in that The target transmit power is obtained by subtracting the power backoff value from the transmit power of the terminal device, and / or the target transmit power is less than or equal to the maximum transmit power capability.

55. The device according to claim 49, characterized in that The first channel also includes a second subchannel in addition to the first subchannel, the second subchannel is in a transmitting state, and the first information includes an out-of-band leakage signal strength indicator of the second subchannel and / or out-of-band leakage signal interference information of the second subchannel.

56. The device according to claim 55, characterized in that The apparatus further includes a determining unit, which is configured to, after receiving the first information sent by the terminal device,: determining a target frequency region in the first subchannel according to the out-of-band leakage signal strength indicator and / or the out-of-band leakage signal interference information; The communication unit is further used to: send fourth information to the terminal device, where the fourth information is used to indicate the target frequency area.

57. The device according to claim 56, characterized in that The determining unit is specifically configured to: The target frequency area is determined according to the downlink signal strength corresponding to the terminal device and the out-of-band leakage signal strength index.

58. The device according to any one of claims 55 to 57, characterized in that The out-of-band leakage signal strength indicator is predefined, or the out-of-band leakage signal strength indicator is determined by the terminal device from a plurality of candidate out-of-band leakage signal strength indicators sent by the apparatus.

59. The device according to claim 58, characterized in that The out-of-band leakage signal strength indicator includes: absolute power intensity and / or relative power intensity.

60. The device according to claim 59, characterized in that The absolute power intensity is the power intensity value of the out-of-band leakage signal in the first sub-channel, and the relative power intensity is the ratio or difference between the power intensity of the out-of-band leakage signal and the transmit power on the first sub-channel.

61. The device according to claim 60, characterized in that The power intensity of the out-of-band leakage signal includes: a ratio of the power intensity of the out-of-band leakage signal to other bandwidths in the first subchannel except the first subchannel, and / or a power intensity of the out-of-band leakage signal over each integrated bandwidth in the other bandwidths. The transmit power includes: a ratio of the transmit power to the bandwidth of the first subchannel, a ratio of the transmit power to the bandwidth of the transmit band in the first subchannel, and / or a power intensity of the transmit power over each integrated bandwidth in the bandwidth of the first subchannel.

62. The device according to any one of claims 49 to 61, characterized in that The communication unit is further configured to: Send fifth information to the terminal device, where the fifth information is used to trigger the terminal device to report the first information.

63. The device according to claim 62, characterized in that The fifth information includes an out-of-band leakage signal strength indicator sent by the device.

64. A communication device, characterized in that include: a determining unit, configured to determine a target frequency region in a first subchannel, the first subchannel occupying part of frequency domain resources of the first channel; A communication unit is used to send sixth information to the terminal device, where the sixth information is used to indicate the target frequency area.

65. The device according to claim 64, characterized in that The first channel further includes a second sub-channel in addition to the first sub-channel, and the second sub-channel is in a transmitting state. The determining unit is specifically configured to: The target frequency region is determined according to the out-of-band leakage signal strength indicator.

66. The device according to claim 65, characterized in that The determining unit is specifically configured to: The target frequency area is determined according to the downlink signal strength corresponding to the terminal device and the out-of-band leakage signal strength index.

67. A communication device, characterized in that The communication device comprises a memory, a transceiver and a processor, wherein the memory is used to store programs, the processor transmits and receives data through the transceiver, and the processor is used to call the program in the memory so that the communication device executes the method according to any one of claims 1 to 15.

68. A communication device, characterized in that It includes a memory, a transceiver and a processor, the memory is used to store programs, the processor sends and receives data through the transceiver, and the processor is used to call the program in the memory so that the communication device executes the method as described in any one of claims 16 to 33.

69. A communication device, characterized in that The device comprises a processor configured to call a program from a memory so as to enable the communication device to execute the method according to any one of claims 1 to 15.

70. A communication device, characterized in that The device comprises a processor configured to call a program from a memory so as to cause the communication device to execute the method according to any one of claims 16 to 33.

71. A chip, characterized in that The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 15.

72. A chip, characterized in that The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 16 to 33.

73. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 15.

74. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 16 to 33.

75. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 15.

76. A computer program product, characterized in that A program is included, the program causing a computer to execute the method according to any one of claims 16 to 33.

77. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 15.

78. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 16 to 33.

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