Communication method and device

Abstract

The invention provides a communication method and device, and is applied to the technical field of communication, and the method comprises the steps: receiving first resource configuration information from network equipment; the first resource configuration information indicates M resource units and a first pattern; the first pattern indicates at least one first resource subunit in the resource unit; the first resource subunit does not comprise a signal of the network equipment; measuring a signal in at least one first resource subunit in the resource units according to the first resource configuration information to obtain signal quality of the M resource units; and sending interference feedback information to network equipment, wherein the interference feedback information indicates N resource units in the M resource units. According to the method, the network equipment does not send signals in the first resource subunit of the M configured resource units, signals measured by the terminal equipment on the configured first resource subunit are all from inter-system / inter-cell interference signals, and inter-system / inter-cell interference can be accurately measured.

Description

Technical Field

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

[0002] Non-terrestrial network (NTN) communication refers to communication achieved with the help of non-terrestrial network equipment. NTN systems can include satellite systems, etc. Introducing NTN communication into mobile network communication, such as the fifth-generation (5G) communication, can improve user experience. On the one hand, NTN can provide communication services for areas that are difficult to cover by terrestrial networks, such as oceans, forests, deserts or remote areas; on the other hand, NTN can enhance the reliability of mobile communications, such as providing more stable communication services for users in high-speed mobile scenarios such as trains and airplanes; in addition, NTN can also provide more data transmission resources and support the connection of a larger number of terminal devices.

[0003] Due to the large number of base stations and terminal devices in the terrestrial cellular network, inter-system interference is likely to occur between satellites and terrestrial cellular networks. For example, satellites may be interfered by power leakage from base stations or power leakage from terminal devices. Inter-system interference will affect the transmission performance between satellites and terminal devices. Therefore, how to measure interference in NTN is an urgent problem to be solved. Summary of the invention

[0004] The present application provides a communication method and device for accurately measuring interference and improving the transmission performance of the system.

[0005] In a first aspect, the present application provides a communication method, which can be applied to a terminal device, or a processor, a chip or a functional module in a terminal device, etc. The method may include: receiving first resource configuration information from a network device; the first resource configuration information indicates M resource units and a first pattern, M is a positive integer; the first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; measuring a signal in at least one first resource sub-unit in the resource unit according to the first resource configuration information to obtain the signal quality of the M resource units; sending interference feedback information to the network device, the interference feedback information indicating frequency domain resources corresponding to N resource units in the M resource units, N is a positive integer.

[0006] Through the method provided in the present application, the network device indicates M resource units through the first resource configuration information, and the network device does not send a signal in the first resource sub-unit included in the configured M resource units. Then, the signals measured by the terminal device on the configured first resource sub-unit are all interference signals from between systems / between cells, thereby accurately measuring the interference between systems / between cells.

[0007] In a possible implementation manner, the first pattern corresponds to M resource units; or, the first pattern includes M patterns, and one pattern among the M patterns corresponds to one resource unit among the M resource units.

[0008] In one possible implementation, the first resource configuration information indicates a first pattern, including: the first resource configuration information indicates an index of the first pattern; or, the first resource configuration information indicates pattern parameters of the first pattern, the pattern parameters including at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier of at least one first resource sub-unit; the comb tooth size of at least one first resource sub-unit.

[0009] In one possible implementation, the first resource configuration information indicates M resource units, including: the first resource configuration information indicates at least one of the following: the number of time slots occupied by the M resource units; the number of resource blocks occupied by the M resource units; the starting time slot occupied by the M resource units; the starting resource block occupied by the M resource units; the frequency domain density of the M resource units; the time domain period of the M resource units; and the comb tooth size of the M resource units.

[0010] In one possible implementation, sending interference feedback information to a network device includes: satisfying a first condition and sending interference feedback information to the network device; wherein the first condition includes at least one of the following: the M resource units include resource units whose signal quality is greater than or equal to a signal quality threshold; the M resource units include resource units whose signal quality is less than or equal to the signal quality threshold.

[0011] In one possible implementation, N resource units satisfy at least one of the following: the N resource units are resource units with the top N signal qualities among M resource units; the N resource units are resource units with the top X% signal qualities among M resource units, where X is a number greater than 0; the signal quality of the N resource units is greater than or equal to a signal quality threshold; the signal quality of the N resource units is less than or equal to a signal quality threshold.

[0012] In a possible implementation manner, the method further includes: receiving feedback indication information from a network device, where the feedback indication information indicates reporting interference feedback information.

[0013] In a possible implementation manner, the feedback indication information further indicates the first condition.

[0014] In a possible implementation, the method also includes: receiving scheduling information from a network device, the scheduling information indicating data transmission on a first time-frequency resource; if the N resource units are the resource units with the top N largest signal qualities or the top X% largest resource units among the M resource units, or the signal qualities of the N resource units are greater than or equal to a signal quality threshold, the frequency domain of the first time-frequency resource does not overlap with the frequency domain of the N resource units; if the signal quality of the N resource units is less than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource overlaps with the frequency domain of the N resource units.

[0015] According to the method, when performing resource scheduling, the network device may not schedule resource units whose signal quality is greater than or equal to the signal quality threshold, thereby avoiding inter-system / inter-cell interference and improving the robustness of the system.

[0016] In a possible implementation, the network device is a non-terrestrial network device.

[0017] In the second aspect, the present application provides a communication method, which can be applied to a network device, or a processor, a chip or a functional module in a network device, etc. The method may include: determining first resource configuration information; the first resource configuration information indicates M resource units and a first pattern, M is a positive integer; the first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; and sending the first resource configuration information to a terminal device.

[0018] In a possible implementation manner, the method further includes: receiving interference feedback information from a terminal device, where the interference feedback information indicates frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer.

[0019] In a possible implementation manner, the first pattern corresponds to M resource units; or, the first pattern includes M patterns, and one pattern among the M patterns corresponds to one resource unit among the M resource units.

[0020] In one possible implementation, the first resource configuration information indicates a first pattern, including: the first resource configuration information indicates an index of the first pattern; or, the first resource configuration information indicates pattern parameters of the first pattern, the pattern parameters including at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier of at least one first resource sub-unit; the comb tooth size of at least one first resource sub-unit.

[0021] In one possible implementation, the first resource configuration information indicates M resource units, including: the first resource configuration information indicates at least one of the following: the number of time slots occupied by the M resource units; the number of resource blocks occupied by the M resource units; the starting time slot occupied by the M resource units; the starting resource block occupied by the M resource units; the frequency domain density of the M resource units; the time domain period of the M resource units; and the comb tooth size of the M resource units.

[0022] In a possible implementation, N resource units satisfy at least one of the following: the N resource units are resource units with the top N signal qualities among M resource units, and the signal quality of the resource unit is determined based on the measurement result of the signal in at least one first resource sub-unit in the resource unit; the N resource units are resource units with the top X% signal qualities among the M resource units, where X is a number greater than 0; the signal quality of the N resource units is greater than or equal to a signal quality threshold; the signal quality of the N resource units is less than or equal to a signal quality threshold.

[0023] In a possible implementation manner, the method further includes: sending feedback indication information to the terminal device, where the feedback indication information indicates reporting interference feedback information.

[0024] In a possible implementation, the feedback indication information indicates reporting interference feedback information, including: the feedback indication information indicates reporting interference feedback information when a first condition is met; wherein the first condition includes at least one of the following: the M resource units include resource units whose signal quality is greater than or equal to a signal quality threshold, and the signal quality of the resource unit is determined based on a measurement result of a signal in at least one first resource sub-unit in the resource unit; the M resource units include resource units whose signal quality is less than or equal to the signal quality threshold.

[0025] In a possible implementation manner, the feedback indication information further indicates the first condition.

[0026] In a possible implementation, the method also includes: sending scheduling information to a terminal device, the scheduling information indicating that data is to be transmitted on a first time-frequency resource; if the N resource units are the resource units with the top N largest signal qualities or the top X% of the resource units with the largest signal qualities among the M resource units, or the signal qualities of the N resource units are greater than or equal to a signal quality threshold, the frequency domain of the first time-frequency resource does not overlap with the frequency domain of the N resource units; if the signal quality of the N resource units is less than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource overlaps with the frequency domain of the N resource units.

[0027] In a possible implementation, the network device is a non-terrestrial network device.

[0028] In a third aspect, the present application provides a communication method, which can be applied to a first network device, or a processor, a chip or a functional module in the first network device, etc. The method may include: sending second resource configuration information to at least one terminal device; the second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, Y is a positive integer; the first resource sub-unit does not include a signal of at least one terminal device; measuring the signal in at least one first resource sub-unit in the resource unit to obtain the signal quality of the Y resource units.

[0029] Through the method of the present application, the network side can indicate the resource unit used for uplink interference measurement. The terminal device does not send a signal in the first resource subunit included in the configured resource unit. Then, the signals measured by the network device on the configured first resource subunit are all interference signals from between systems / between cells, thereby accurately measuring the interference between systems / between cells.

[0030] In a possible implementation manner, the method further includes: performing interference elimination according to signal qualities of the Y resource units.

[0031] In one possible implementation, the second resource configuration information indicates a second pattern, including: the second resource configuration information indicates an index of the second pattern; or, the second resource configuration information indicates pattern parameters of the second pattern, the pattern parameters including at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier occupied by at least one first resource sub-unit; the comb tooth size of at least one first resource sub-unit.

[0032] In one possible implementation, the second resource configuration information indicates Y resource units, including: the second resource configuration information indicates an index of a third pattern, and the third pattern indicates the time-frequency position of the Y resource units; or, the second resource configuration information indicates pattern parameters of the third pattern, and the pattern parameters of the third pattern include at least one of the following: the number of time slots occupied by Y resource units; the number of resource blocks occupied by Y resource units; the starting time slot occupied by Y resource units; the starting resource block of Y resource units; the frequency domain density of Y resource units; the time domain period of Y resource units; and the comb tooth size of Y resource units.

[0033] In a possible implementation, the Y resource units are associated with a first transmission direction of a signal of the first network device; and the method further includes:

[0034] The signal quality and area information of Y resource units are sent to the second network device; the area information indicates the coverage of the signal transmitted by the first network device in the first transmission direction.

[0035] Through this method, the second network device does not need to perform interference measurement, and can directly use the signal quality indicated by the first network device to eliminate interference, thereby improving resource utilization and reducing resource overhead.

[0036] In a possible implementation manner, the first network device is a non-terrestrial network device.

[0037] In a fourth aspect, the present application provides a communication method, which can be applied to a terminal device, or a processor, a chip, or a functional module in the terminal device, etc. The method may include: receiving second resource configuration information from a first network device; the second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, and Y is a positive integer;

[0038] According to the second resource configuration information, communication with the first network device is not performed through the first resource sub-unit among the Y resource units, or signals are not sent through the first resource sub-unit among the Y resource units.

[0039] In one possible implementation, the second resource configuration information indicates a second pattern, including: the second resource configuration information indicates an index of the second pattern; or, the second resource configuration information indicates pattern parameters of the second pattern, the pattern parameters including at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier occupied by at least one first resource sub-unit; the comb tooth size of at least one first resource sub-unit.

[0040] In one possible implementation, the second resource configuration information indicates Y resource units, including: the second resource configuration information indicates an index of a third pattern, and the third pattern indicates the time-frequency position of the Y resource units; or, the second resource configuration information indicates pattern parameters of the third pattern, and the pattern parameters of the third pattern include at least one of the following: the number of time slots occupied by Y resource units; the number of resource blocks occupied by Y resource units; the starting time slot occupied by Y resource units; the starting resource block of Y resource units; the frequency domain density of Y resource units; the time domain period of Y resource units; and the comb tooth size of Y resource units.

[0041] In a possible implementation manner, the first network device is a non-terrestrial network device.

[0042] In a fifth aspect, the present application further provides a communication device, which can implement any of the methods provided in any of the first to fourth aspects above. The communication device can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0043] In a possible implementation, the communication device includes: a processor, the processor is configured to support the communication device to perform the corresponding functions of the network device or the terminal device in the method shown above. The communication device may also include a memory, which may be coupled to the processor and stores the necessary program instructions and data of the communication device. Optionally, the communication device also includes an interface circuit, which is used to support communication between the communication device and a device such as a terminal device.

[0044] In a possible implementation, the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0045] In a possible implementation, the structure of the communication device includes a processing unit and a communication unit, which can perform the corresponding functions in the above method example. For details, please refer to the description of the method provided in any aspect of the first to fourth aspects, which will not be repeated here.

[0046] In a sixth aspect, a communication device is provided, comprising a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or to send signals from the processor to other communication devices outside the communication device, and the processor is used to implement a method in any possible implementation of any one of the first to fourth aspects through a logic circuit or by executing code instructions.

[0047] In the seventh aspect, a communication device is provided, comprising a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement a functional module of the method in any possible implementation method of any aspect of the first to fourth aspects through a logic circuit or execution code instructions.

[0048] In an eighth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the method in any possible implementation manner of any aspect of the first to fourth aspects is implemented.

[0049] In a ninth aspect, a computer program product storing instructions is provided, which, when executed by a processor, implements the method in any possible implementation of any of the first to fourth aspects.

[0050] In a tenth aspect, a circuit is provided, which is used to execute the method in any possible implementation of any one of the first to fourth aspects, and the circuit may include a chip circuit. Optionally, the circuit may also be coupled to a memory.

[0051] In an eleventh aspect, a chip is provided, the chip including a processor, for implementing the method in any possible implementation of any of the first to fourth aspects. Optionally, the chip may also include a memory, and the chip may be composed of a chip, or may include a chip and other discrete devices.

[0052] In the twelfth aspect, an embodiment of the present application provides a communication system, which may include a terminal device and a network device, wherein the terminal device is used to implement the method in the above-mentioned first aspect or fourth aspect and any possible design thereof, and the network device is used to implement the above-mentioned second aspect or third aspect and any possible design thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of an NTN scenario provided in an embodiment of the present application;

[0054] Figure 2 A schematic diagram of another NTN scenario provided in an embodiment of the present application;

[0055] Figure 3 A schematic diagram of a system architecture applicable to an embodiment of the present application;

[0056] Figure 4 A schematic diagram of inter-system interference provided in an embodiment of the present application;

[0057] Figure 5 A schematic diagram of inter-system interference provided in an embodiment of the present application;

[0058] Figure 6 A flow chart of a communication method provided in an embodiment of the present application;

[0059] Figure 7 A schematic diagram of a resource unit provided in an embodiment of the present application;

[0060] Figure 8 A schematic diagram of a resource subunit provided in an embodiment of the present application;

[0061] Fig. 9A schematic diagram of a resource unit provided in an embodiment of the present application;

[0062] Fig.10 A schematic diagram of a resource subunit provided in an embodiment of the present application;

[0063] Fig.11 A flow chart of a communication method provided in an embodiment of the present application;

[0064] Fig.12 A schematic diagram of a geostationary cell provided in an embodiment of the present application;

[0065] Fig.13 A schematic diagram of a resource unit provided in an embodiment of the present application;

[0066] Fig.14 A schematic diagram of a resource subunit provided in an embodiment of the present application;

[0067] Fig.15 A schematic diagram of a ground mobile cell provided in an embodiment of the present application;

[0068] Fig.16 A schematic diagram of a ground mobile cell provided in an embodiment of the present application;

[0069] Fig.17 A schematic diagram of a resource subunit provided in an embodiment of the present application;

[0070] Fig.18 A schematic diagram of a ground mobile cell provided in an embodiment of the present application;

[0071] Fig.19 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0072] Fig. 20 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0073] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0074] The communication method provided in the embodiment of the present application can be applied to NTN communication scenarios. NTN communication can include networking using non-ground network devices such as drones, high altitude platform stations (HAPS), satellites, etc. to provide data transmission, voice communication and other services for terminal devices. In addition, the NTN system can also include other non-ground network devices, which are not limited in the present application.

[0075] The NTN system can also support various mobile communication systems, such as: new radio (NR) system, long term evolution (LTE) system or other communication systems such as future communication systems, but the specific ones are not limited here.

[0076] Taking the satellite system as an example of the NTN system, according to the satellite altitude, that is, the orbital altitude of the satellite, the satellite can be divided into geostationary earth orbit (GEO) satellite, medium earth orbit (MEO) satellite and low earth orbit (LEO) satellite. GEO is a synchronous earth satellite orbit. Satellites operating in this orbit are stationary relative to the ground. The orbital altitude of GEO is generally 35786 kilometers (km). LEO and MEO are collectively referred to as non-geostationary orbit (NGSO). Satellites operating in this orbit move at high speed relative to the ground. Among them, the orbital altitude of LEO is generally 160 to 2000 km, and the orbital altitude of MEO is generally 2000 to 35786 km. For NGSO, according to whether the satellite beam moves with the satellite, it can be further divided into earth moving cells and geostationary cells. For earth moving cells, the cell moves relative to the ground, and the satellite's beam pointing follows the satellite's movement; for earth fixed cells, the cell is fixed relative to the ground for a certain period of time, and the satellite antenna can use its beamforming capability to point the beam to a certain area fixed on the ground for a certain period of time.

[0077] In NTN communication, the working modes of NTN equipment may include: transparent mode and regenerative mode. According to the working mode of NTN equipment, the architecture of NTN communication can be divided into the following two categories: one is the transparent forwarding architecture, in which the NTN equipment can be a relay or amplifier, and can perform radio frequency filtering, amplification, etc., to regenerate the physical layer signal. The NTN equipment can be responsible for layer 1 (layer1, L1) relay, which is used for physical layer forwarding, and the upper layer is invisible. The second is the regenerative architecture, in which the NTN equipment has the processing function of the access network equipment. Exemplarily, in the regenerative working mode, the satellite can be divided into a regenerative satellite without an inter-satellite link, that is, there is no inter-satellite link (ISL) between satellites; or a regenerative satellite with an inter-satellite link, that is, there is an interface between satellites to directly exchange data, where the inter-satellite link is an Xn port; or a regenerative satellite with a distributed unit (DU) processing function of an access network device, in which the satellite acts as a DU.

[0078] For example, Figure 1 A schematic diagram of an NTN scenario applicable to the embodiment of the present application is shown, and the NTN scenario can be an application scenario of a transparent forwarding architecture. Figure 1 In the scenario shown, the terminal device can communicate with the 5G core network (CN) through the access network, and then connect to the data network (DN) through the 5G CN. The satellite and NTN gateway can act as relay devices between the terminal device and the access network device or as the remote radio unit (RRU) of the access network device.

[0079] For example, Figure 2 Another NTN scenario schematic diagram applicable to the embodiment of the present application is shown, and the NTN scenario can be an application scenario of a regeneration architecture. Figure 2 In the scenario shown, the satellite can be used as an access network device to form an access network with the NTN gateway and communicate with the core network through the NTN gateway. In addition, the satellite can also provide wireless access services for terminal devices. Figure 2 A regenerative satellite architecture without intersatellite links is illustrated.

[0080] It should be noted that Figure 1 and Figure 2Only one satellite and one NTN gateway are shown. In actual use, a plurality of satellites and / or a plurality of NTN gateways may be used as required. Each satellite may provide services to one or more terminal devices, each NTN gateway may correspond to one or more satellites, and each satellite may correspond to one or more NTN gateways, which are not specifically limited in the embodiments of the present application.

[0081] It should be noted that Figure 1 and Figure 2 It is only an example of an NTN scenario. The NTN scenario may also include other specific scenarios, which are not limited in this application.

[0082] Below, some terms in the embodiments of the present application are first explained to facilitate understanding by those skilled in the art.

[0083] In the embodiment of the present application, the network device may be a device in a wireless network, and the network device may also be referred to as a network apparatus. For example, the network device may be a radio access network (RAN) node that connects a terminal device to a wireless network, and may also be referred to as an access network device. The network device includes, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., and may also be a network device in a 5G mobile communication system. For example, the next generation NodeB (gNB) in the NR system, the transmission reception point (TRP), TP; or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system; or the network device can also be a network node constituting a gNB or a transmission point. For example, a BBU, or a distributed unit (DU), etc.

[0084] In some deployments, the network equipment may include a centralized unit (CU) and a DU. The network equipment may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) layer. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. In some deployments, the CU can also be divided into a centralized unit control plane (CU-CP) node and a centralized unit user plane (CU-UP) node. Among them, the CU-CP is responsible for the control plane functions, and the CU-UP is responsible for the user plane functions.

[0085] It can be understood that in different systems, CU (including CU-CP or CU-UP) or DU may have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, and CU-UP may also be referred to as O-CU-UP. For the convenience of description, this application takes CU, CU-CP, CU-UP and DU as examples for description.

[0086] In the present application, the network device may be a non-terrestrial network device, such as a satellite or other device.

[0087] The terminal device involved in the embodiments of the present application may be a wireless terminal device capable of receiving network device scheduling and indication information. The terminal device may be referred to as a terminal apparatus, and may also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may be a device including a wireless communication function (providing voice / data connectivity to the user). For example, a handheld device with a wireless connection function, or a vehicle-mounted device, a vehicle-mounted module, etc. At present, some examples of terminal devices are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in Internet of Vehicles, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, device-to-device (D2D) communication terminal equipment, vehicle to everything (V2X) communication terminal equipment, smart vehicles, telematics boxes (T-box), machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, Internet of Things (IoT) The terminal device may be an on-board device, a vehicle device, an on-board module, a vehicle, an on-board unit (OBU), a roadside unit (RSU), a T-box, a chip or a system on chip (SOC), etc. The above chip or SOC may be installed in a vehicle, an OBU, an RSU or a T-box. The wireless terminal in industrial control may be a camera, a robot, etc. The wireless terminal in a smart home may be a TV, an air conditioner, a sweeper, a speaker, a set-top box, etc.

[0088] Figure 3Schematic diagram of the architecture of the communication system used in the embodiment of the present application. Figure 3 As shown, the communication system 100 includes at least one network device (such as 110a, 110b, 110c in the figure), and may also include at least one terminal device (such as 120a-120g in the figure). Network devices may be connected to each other by wired or wireless means. Terminal devices may be connected to each other and wireless access network devices may be connected to each other by wired or wireless means. Figure 3 This is just a schematic diagram, and the communication system may also include other devices, such as wireless relay equipment and wireless backhaul equipment.

[0089] Due to the large number of base stations and terminal devices in the ground cellular network, inter-system interference is easy to occur between satellites and ground cellular networks. Inter-system interference can be divided into satellite-to-ground interference and high-orbit and low-orbit interference according to the interference scenario. Among them, the ground cellular network refers to the network corresponding to various mobile communication systems deployed on the ground, for example: the network corresponding to the NR system deployed on the ground, the network corresponding to the LTE system deployed on the ground, etc., specifically, there is no limitation here.

[0090] Since there are many base stations and terminals in the ground cellular network, and LEO satellites are closer to the ground and have less path loss, interference is likely to occur between LEO satellites and the ground network. Figure 4 As shown in FIG. 1 , the dotted line segment represents the interference signal, and the arrow represents the transmission direction of the interference signal. Figure 4 ,In satellite-to-ground interference, the interference situations can be divided into six categories, as shown in Table 1.

[0091] Table 1

[0092]

[0093] High-orbit satellites (GEO satellites) have a large coverage area, and the coverage of low-orbit satellites (LEO satellites) will overlap with that of high-orbit satellites. Since low-orbit satellites have smaller path loss, interference between high-orbit satellites and low-orbit satellites is easy to occur. The high-orbit interference between low-orbit satellites and high-orbit satellites can be as follows: Figure 5 As shown in FIG. 1 , the dotted line segment represents the interference signal, and the arrow represents the transmission direction of the interference signal. Figure 5 ,Among the high and low orbit interference, the interference situations can be divided into four categories, as shown in Table 2.

[0094] Table 2

[0095]

[0096]

[0097] According to the above description, for the downlink direction, there are fewer sources of interference between systems, and for ground terminal equipment, the main interference source is the satellite covering this terminal equipment. For the uplink direction, there are more sources of interference between systems, and for satellites, the interference source is all ground terminal equipment within the visible range of the satellite.

[0098] To this end, the present application provides a method that can configure resources for inter-system interference measurement, thereby measuring inter-system interference.

[0099] In the embodiments of the present application, the functions of the network device may also be performed by a module (such as a chip) in the network device, or by a control subsystem including the network device function. The control subsystem including the network device function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal device may also be performed by a module (such as a chip or a modem) in the terminal device, or by a device including the terminal device function.

[0100] In this application, the names of the messages in the following processes are only examples. With the evolution of communication technology, the names of the messages in the following processes may change. However, no matter how the names change, as long as their meanings are the same as the functions or meanings of the messages in this application, they fall within the scope of protection of this application. The order of the steps in the following processes is only an example. In actual applications, the execution order of the steps in each process can be adjusted.

[0101] It can be understood that the present application does not particularly limit the specific structure of the execution subject of the method provided in the embodiment of the present application. As long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, the interaction between the terminal device and the network device is used as an example to illustrate.

[0102] The method provided in this application is applied to Figures 1 to 3 When the system is in Figures 1 to 3 The terminal device or the module in the terminal device implements the method executed by the terminal device in the embodiment of the present application, which can be Figures 1 to 3 A non-terrestrial network device (such as a satellite) or a module in a non-terrestrial network device implements the method executed by the network device in the embodiment of the present application.

[0103] like Figure 6 FIG. 1 is a flow chart of a communication method provided in an embodiment of the present application, the method comprising:

[0104] Step 601: The network device sends first resource configuration information to the terminal device.

[0105] Correspondingly, the terminal device receives the first resource configuration information from the network device.

[0106] This application does not limit how the network device sends the first resource configuration information. For example, the network device may send the first resource configuration information via an RRC message, or may send the first resource configuration information via a system message, etc.

[0107] In one implementation, the network device is a non-terrestrial network device, for example, the network device is a satellite.

[0108] In one implementation, the first resource configuration information indicates M resource units and a first pattern, where M is a positive integer. The first pattern indicates at least one first resource sub-unit in a resource unit, and specifically, the first pattern may indicate the number and position of the first resource sub-units included in a resource unit.

[0109] The first resource configuration information may be system-level configuration information. The network device may broadcast the first resource configuration information, and all terminal devices connected to the network device are configured with the same first resource configuration information. Neighboring network devices adjacent to the network device may also broadcast the first resource configuration information, that is, multiple network devices may broadcast the same first resource configuration information.

[0110] In one implementation, a resource unit may include a resource block (RB) in the frequency domain and a time slot in the time domain. A time slot includes multiple orthogonal frequency division multiplexing (OFDM) symbols. For example, a time slot may include 14 OFDM symbols. A resource subunit may include a resource element (RE). Among them, an RB includes 12 subcarriers in the frequency domain; an RE includes 1 subcarrier in the frequency domain and 1 OFDM symbol in the time domain. In the following description, OFDM symbols are referred to as symbols.

[0111] A resource unit includes multiple resource sub-units. For example, a resource unit includes one RB in the frequency domain and one time slot in the time domain, and one resource sub-unit includes one RE, so one resource unit includes 12×14=168 resource sub-units.

[0112] In the present application, in one implementation, the first pattern may correspond to M resource units, that is, the number and position of the first resource sub-units may be determined in each of the M resource units through the first pattern. The number of first resource sub-units included in each of the M resource units is the same, and the position of at least one first resource sub-unit included in each resource unit is the same.

[0113] In another implementation, the first pattern includes M patterns, and one of the M patterns corresponds to one of the M resource units. In this implementation, each resource unit corresponds to a pattern, and the patterns corresponding to different resource units may be the same or different.

[0114] Among them, the first resource subunit in the resource unit is a resource used for the terminal device to perform interference measurement. In order to improve the accuracy of the measurement, the first resource subunit does not include the signal of the network device, that is, the network device does not send a signal in the first resource subunit. Similarly, the network device will not schedule the terminal device to send a signal in the first resource subunit. Alternatively, the first resource subunit does not include the signal of the network device, which can also be referred to as the first resource subunit including a zero-power signal or a zero-power reference signal. The first resource subunit can also be referred to as a zero-power resource unit.

[0115] The resource sub-units other than the first resource sub-unit in a resource unit may include signals of network devices, or may also include signals of terminal devices, or may not include signals of network devices or terminal devices, and this application does not limit this.

[0116] The present application does not limit how the first resource configuration information indicates the M resource units. In one implementation, the first resource configuration information indicates at least one of the following: the number of time slots occupied by the M resource units; the number of resource blocks occupied by the M resource units; the starting time slot occupied by the M resource units; the starting resource block occupied by the M resource units; the frequency domain density of the M resource units; the time domain period of the M resource units; the comb tooth size of the M resource units.

[0117] In another implementation, the first resource configuration information indicates a fourth pattern. The number and position of the M resource units may correspond to a pattern, which may be preconfigured in the terminal device, and the first resource configuration information may indicate the index of the pattern. For example, the terminal device may include multiple patterns, each pattern corresponds to an index, and each pattern may indicate the starting time slot occupied by the M resource units, the occupied starting resource block, the frequency domain density of the M resource units, and the time domain period of the M resource units. Different patterns indicate different information, and the multiple patterns may be predefined or preconfigured; the network device may select a pattern from the multiple patterns and indicate the index of the pattern, thereby indicating the implementation of indicating M resource units.

[0118] This application does not limit how the first resource configuration information indicates the first pattern. In one implementation, the first resource configuration information indicates an index of the first pattern. In this implementation, the terminal device may include multiple patterns, each pattern corresponds to an index, and the multiple patterns may be predefined or preconfigured. When the terminal device needs to perform interference measurement, a pattern can be selected from the multiple patterns as the first pattern, and the index of the first pattern can be indicated, thereby saving overhead.

[0119] In another implementation, the first resource configuration information indicates pattern parameters of the first pattern, and the pattern parameters of the first pattern include at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier of at least one first resource sub-unit; and the comb tooth size of at least one first resource sub-unit.

[0120] Step 602: The terminal device measures a signal in at least one first resource sub-unit in a resource unit according to the first resource configuration information to obtain signal qualities of the M resource units.

[0121] For each of the M resource units, the terminal device can determine at least one first resource sub-unit indicated by the first pattern in the resource unit according to the first resource configuration. The terminal device measures the signal in at least one first resource sub-unit in the resource unit to obtain the signal quality of the resource unit, and can obtain the signal quality of each of the M resource units.

[0122] In one implementation, the signal quality may be a signal receiving power, or may be another parameter that can represent the signal quality. For a resource unit, the terminal device may perform a measurement in each resource subunit of at least one resource subunit of the resource unit to obtain a measurement result, the measurement result including at least one signal quality corresponding to at least one resource subunit, and the signal quality of the resource unit may be determined based on the measurement result obtained by measuring at least one resource subunit of the resource unit. For example, the signal quality of a resource unit may be determined by any of the following methods:

[0123] Mode 1: Accumulate at least one signal quality obtained by measuring at least one resource sub-unit of the resource unit, and use the accumulated sum as the signal quality of the resource unit; for example, a resource unit includes P resource sub-units, where P is an integer greater than 0. The P resource sub-units are measured to obtain P signal qualities corresponding to the P resource sub-units, and the accumulated sum of the P signal qualities is used as the signal quality of the resource unit.

[0124] Method 2: take an average of at least one signal quality obtained by measuring at least one resource sub-unit of the resource unit, and use the average as the signal quality of the resource unit; for example, measure P resource sub-units included in a resource unit, obtain P signal qualities corresponding to the P resource sub-units, and use the average of the P signal qualities as the signal quality of the resource unit.

[0125] Method three, taking the maximum signal quality of at least one signal quality obtained by measuring at least one resource sub-unit of the resource unit as the signal quality of the resource unit; for example, measuring P resource sub-units included in a resource unit, obtaining P signal qualities corresponding to the P resource sub-units, and taking the maximum signal quality of the P signal qualities as the signal quality of the resource unit.

[0126] The above is only an example, and the signal quality of a resource unit may also be determined by other methods, which will not be described in detail here.

[0127] In the present application, the signal in the first resource subunit may be an interference signal from other devices. For example, assuming that the network device is a satellite in the NTN system, in the satellite-to-ground interference scenario, the signal in the first resource subunit may be a signal sent by a base station in a terrestrial cellular network, or a signal sent by a terminal device in a terrestrial cellular network. These signals may interfere with the satellite and the terminal devices connected to the satellite. For the NTN system, these signals are interference signals. In the high-orbit and low-orbit interference scenario, the signal in the first resource subunit may be a signal sent by a satellite in other orbits and a terminal device connected to the satellite, and these signals may also cause interference.

[0128] Step 603: The terminal device sends interference feedback information to the network device.

[0129] Correspondingly, the network device receives interference feedback information from the terminal device.

[0130] The interference feedback information indicates the frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer and N is less than or equal to M. For example, the interference feedback information includes the indexes of N RBs corresponding to the N resource units. The value of N may be predefined or preconfigured, may be determined autonomously by the terminal device, or may be configured by the network device. For example, the network device indicates the value of N through feedback indication information.

[0131] In one implementation, the network device may further send feedback indication information to the terminal device, where the feedback indication information indicates reporting interference feedback information. The feedback indication information may further indicate at least one of the first condition and the second condition. If the feedback indication information does not indicate the first condition or the second condition, the first condition or the second condition may also be predefined or preconfigured, or may be autonomously determined by the terminal device.

[0132] In one implementation, when the first condition is met, the terminal device sends interference feedback information to the network device; when the first condition is not met, the terminal device does not send interference feedback information to the network device. The first condition may be indicated by the network device, or may be predefined or preconfigured.

[0133] In one implementation, the first condition includes at least one of the following:

[0134] The M resource units include resource units whose signal quality is greater than or equal to the signal quality threshold;

[0135] The M resource units include resource units whose signal quality is less than (or less than or equal to) a signal quality threshold.

[0136] The signal quality threshold is predefined or configured by the network device, or can be determined autonomously by the terminal device.

[0137] In one implementation, the second condition includes at least one of the following:

[0138] Feedback the frequency domain resources corresponding to the resource units with the N largest signal qualities among the M resource units;

[0139] Feedback the frequency domain resources corresponding to the resource units with the top X% signal quality among the M resource units, where X is a number greater than 0;

[0140] Feedback frequency domain resources corresponding to resource units whose signal quality among the M resource units is greater than or equal to the signal quality threshold;

[0141] Frequency domain resources corresponding to the resource units whose signal qualities of the M resource units are less than or equal to the signal quality threshold are fed back.

[0142] The value of X may be predefined or preconfigured, or may be determined autonomously by the terminal device, or may be configured by the network device. For example, the network device indicates the value of X by feeding back indication information.

[0143] In the present application, the N resource units indicated by the interference feedback information may satisfy at least one of the following:

[0144] The N resource units are resource units with the top N signal qualities among the M resource units;

[0145] The N resource units are resource units with the top X% signal quality among the M resource units;

[0146] The signal quality of N resource units is greater than or equal to the signal quality threshold;

[0147] The signal qualities of the N resource units are less than or equal to the signal quality threshold.

[0148] For example, if the second condition includes feedback of frequency domain resources corresponding to resource units with the top N signal qualities among M resource units, then the N resource units indicated by the interference feedback information are resource units with the top N signal qualities among the M resource units; for another example, if the second condition includes feedback of frequency domain resources corresponding to resource units with the top X% signal qualities among M resource units, then the N resource units indicated by the interference feedback information are resource units with the top X% signal qualities among the M resource units.

[0149] In the present application, the network device can perform resource scheduling based on the interference feedback information, avoiding the interfered frequency domain resources during scheduling, thereby reducing interference. For example, the network device sends scheduling information to the terminal device, and the scheduling information indicates that data transmission is performed on the first time-frequency resource.

[0150] In one implementation, if the N resource units are the resource units with the top N largest signal qualities or the top X% largest resource units among the M resource units, or the signal quality of the N resource units is greater than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource does not overlap with the frequency domain of the N resource units. In this way, the signal quality of the interference signal that interferes with the signal transmitted in the first time-frequency resource can be less than the signal quality threshold, thereby reducing signal interference.

[0151] In one implementation, if the signal quality of N resource units is less than or equal to a signal quality threshold, the frequency domain of the first time-frequency resource overlaps with the frequency domain of the N resource units. This ensures that the signal quality of the interference signal that interferes with the signal transmitted in the first time-frequency resource is less than the signal quality threshold, thereby reducing signal interference.

[0152] Through the method provided by the present application, the network device indicates M resource units through the first resource configuration information, and the network device does not send a signal in the first resource subunit included in the configured M resource units, then the signals measured by the terminal device on the configured first resource subunit are all interference signals from inter-system / inter-cell, so that the inter-system / inter-cell interference can be accurately measured. Furthermore, when performing resource scheduling, the network device may not schedule resource units whose signal quality is greater than or equal to the signal quality threshold, thereby avoiding inter-system / inter-cell interference and improving the robustness of the system.

[0153] In combination with the above description, for example, the first configuration information sent by the network device includes first information and second information.

[0154] The first information indicates M resource units, and taking a resource unit including one RB in the frequency domain and one time slot in the time domain as an example, the first information may be RB configuration information. For example, the first information includes: number of occupied time slots = 1, number of occupied RBs = 50, starting time slot index = 0, starting RB index = 0, frequency domain density L = 1, and time domain period T = 100 time slots.

[0155] The second information indicates the first pattern. Taking a resource subunit including one RE as an example, the second information may be RE configuration information. For example, the second information includes: number of occupied symbols=2, number of occupied subcarriers=2, starting symbol index=3, starting subcarrier index=4.

[0156] like Figure 7 As shown, according to the first information, the time-frequency positions of the M=50 resource units indicated by the first information can be determined. Figure 7 In the example, a grid represents a resource unit, and the grids corresponding to the 50 resource units indicated by the first information are filled with line patterns, and these resource units include at least one resource sub-unit indicated by the first pattern. Since T=100 time slots, 50 resource units including the first resource sub-unit will appear every 100 time slots.

[0157] like Figure 8 As shown, 168 resource sub-units included in one resource unit are illustrated. According to the second information, the positions of the four resource sub-units indicated by the second information in one resource unit can be determined. Figure 8 In the example, one grid represents one resource sub-unit, and the grid corresponding to the first resource unit indicated by the second information is filled with a line pattern, and these resource sub-units need to be measured.

[0158] Assume that the network device further sends feedback indication information, where the feedback indication information indicates that the RBs corresponding to the resource units with the top N=10 signal qualities among the M resource units are fed back.

[0159] Further, the network device does not send a signal in the first resource sub-unit included in each of the M resource units; correspondingly, the terminal device measures the signal in the first resource sub-unit included in each of the M resource units.

[0160] Assuming that the indexes of RBs corresponding to the top 10 resource units with the highest signal quality among the M resource units are {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, then the indexes of 10 RBs included in the interference feedback information sent by the terminal device are {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}.

[0161] Correspondingly, the network device no longer schedules the 10 RBs indicated by the interference feedback information when scheduling resources based on the interference feedback information, thereby reducing interference.

[0162] For another example, the first configuration information sent by the network device includes first information and second information.

[0163] The first information indicates M resource units, taking an example where a resource unit includes one RB in the frequency domain and one time slot in the time domain. For example, the first information includes: number of occupied time slots = 1, number of occupied RBs = 50, starting time slot index = 0, starting RB index = 0, frequency domain density = 1, and time domain period = 100 time slots.

[0164] The second information indicates the first pattern. Taking a resource subunit including one RE as an example, for example, the second information includes: number of occupied symbols = 12, number of occupied subcarriers = 12, starting symbol index = 0, starting subcarrier index = 0, and comb tooth size = 12.

[0165] like Fig. 9 As shown, according to the first information, the time-frequency positions of the M=50 resource units indicated by the first information can be determined. Fig. 9 In the example, a grid represents a resource unit, and the grids corresponding to the 50 resource units indicated by the first information are filled with line patterns, and these resource units include at least one resource sub-unit indicated by the first pattern. Since T=100 time slots, 50 resource units including the first resource sub-unit will appear every 100 time slots.

[0166] like Fig.10 As shown, 168 resource sub-units included in one resource unit are illustrated. According to the second information, the positions of the 12 resource sub-units indicated by the second information in one resource unit can be determined. Fig.10 In the figure, a grid represents a resource subunit, and the grid corresponding to the first resource unit indicated by the first information is filled with a line pattern, and these resource subunits need to be measured. The position of the first resource unit indicated by the second information shown in the figure is only an example, and the positions of the 12 resource units indicated by the second information may also exist in other situations.

[0167] Assume that the network device further sends feedback indication information, where the feedback indication information indicates RBs corresponding to resource units having a signal quality greater than or equal to -90 decibel milliwatts (dBm).

[0168] Further, the network device does not send a signal in the first resource sub-unit included in each of the M resource units; correspondingly, the terminal device measures the signal in the first resource sub-unit included in each of the M resource units.

[0169] Assuming that the index of the RB corresponding to the resource unit with signal quality greater than or equal to -90dBm in the M resource units is {0,1,2,3,4,5,6}, then the index of the RB included in the interference feedback information sent by the terminal device is {0,1,2,3,4,5,6}.

[0170] Correspondingly, the network device no longer schedules the RB indicated by the interference feedback information when scheduling resources based on the interference feedback information, thereby reducing interference.

[0171] In the present application, the network device may also perform interference measurement, and the process of the network device performing interference measurement is described below.

[0172] like Fig.11 FIG. 1 is a flow chart of a communication method provided in an embodiment of the present application, the method comprising:

[0173] Step 1101: A first network device sends second resource configuration information to at least one terminal device.

[0174] Correspondingly, the terminal device receives the second resource configuration information from the first network device.

[0175] The present application does not limit how the first network device sends the second resource configuration information. For example, the first network device may send the second resource configuration information via an RRC message, or may send the second resource configuration information via a system message.

[0176] In one implementation, the first network device is a non-terrestrial network device, for example, the first network device is a satellite.

[0177] In one implementation, the second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, and Y is a positive integer. Specifically, the second pattern may indicate the number and position of the first resource sub-units included in a resource unit. The specific meanings of the resource unit and the resource sub-unit may refer to the description in step 601 and will not be repeated here.

[0178] The second resource configuration information may be system-level configuration information. The first network device may broadcast the second resource configuration information, and all terminal devices connected to the first network device may be configured with the same second resource configuration information. Neighboring network devices adjacent to the first network device may also broadcast the second resource configuration information, that is, multiple network devices may broadcast the same second resource configuration information.

[0179] In one implementation, the second pattern may correspond to Y resource units, that is, the number and position of the first resource sub-units may be determined in each of the Y resource units through the second pattern. The number of first resource sub-units included in each of the Y resource units is the same, and the position of at least one first resource sub-unit included in each resource unit is the same.

[0180] In another implementation, the second pattern includes Y patterns, and one pattern among the Y patterns corresponds to one resource unit among the Y resource units, that is, each resource unit corresponds to one pattern, and the patterns corresponding to different resource units may be the same or different.

[0181] Among them, the first resource subunit in the resource unit is a resource used for the first network device to perform interference measurement. In order to improve the accuracy of the measurement, the first resource subunit does not include the signal of at least one terminal device, that is, at least one terminal device does not send a signal in the first resource subunit, and the first network device does not schedule at least one terminal device to send a signal in the first resource subunit. Similarly, the first network device will not send a signal in the first resource subunit. Alternatively, the first resource subunit can also be called a zero-power resource unit.

[0182] The resource sub-units other than the first resource sub-unit in a resource unit may include the signal of the first network device, or may also include the signal of the terminal device, or may not include the signal of the first network device or the terminal device, and the present application does not limit this.

[0183] There may be multiple implementations of how the second resource configuration information indicates the Y resource units. In one implementation, the second resource configuration information indicates a third pattern, and the third pattern indicates the time-frequency position of the Y resource units. For example, the second resource configuration information includes an index of the third pattern. In this implementation, the terminal device may include multiple patterns, each pattern corresponds to an index, and each pattern may indicate the starting time slot occupied by Y resource units, the starting resource block occupied, the frequency domain density of Y resource units, the comb tooth size of Y resource units, and the time domain period of Y resource units. The information indicated by different patterns is different, and the multiple patterns can be predefined or preconfigured; the network device can select a pattern from multiple patterns as the third pattern, and indicate the index of the pattern, thereby indicating the implementation of indicating Y resource units.

[0184] In another implementation, the second resource configuration information indicates pattern parameters of the third pattern, and the pattern parameters of the third pattern include at least one of the following: the number of time slots occupied by Y resource units; the number of resource blocks occupied by Y resource units; the starting time slot occupied by Y resource units; the starting resource block occupied by Y resource units; the frequency domain density of Y resource units; the time domain period of Y resource units; and the comb tooth size of Y resource units.

[0185] There may be multiple implementations of how the second resource configuration information indicates the second pattern. In one implementation, the second resource configuration information indicates an index of the second pattern; in this implementation, the terminal device may include multiple patterns, each pattern corresponds to an index, and the multiple patterns may be predefined or preconfigured. The first network device may select a pattern from the multiple patterns as the second pattern and indicate the index of the second pattern.

[0186] In another implementation, the second resource configuration information indicates pattern parameters of the second pattern, and the pattern parameters include at least one of the following: the number of symbols occupied by at least one first resource sub-unit; the number of subcarriers occupied by at least one first resource sub-unit; the starting symbol occupied by at least one first resource sub-unit; the starting subcarrier occupied by at least one first resource sub-unit; and the comb tooth size of at least one first resource sub-unit.

[0187] Step 1102: According to the second resource configuration information, the terminal device does not communicate with the first network device through the first resource sub-unit among the Y resource units, or does not send a signal through the first resource sub-unit among the Y resource units.

[0188] For each of the Y resource units, the terminal device does not send signals in all first resource units included in the resource unit.

[0189] The terminal device here is any terminal device in the at least one terminal device in step 1101. Each terminal device in the at least one terminal device in step 1101 can execute step 1102.

[0190] Step 1103: The first network device measures a signal in at least one first resource sub-unit in the resource unit to obtain signal qualities of Y resource units.

[0191] The signal in the first resource subunit may be an interference signal from other devices. For example, assuming that the first network device is a satellite in the NTN system, in a satellite-to-ground interference scenario, the signal in the first resource subunit may be a signal sent by a base station in a terrestrial cellular network or a signal sent by a terminal device in a terrestrial cellular network, and these signals may interfere with the satellite and the terminal device accessing the satellite.

[0192] For each of the Y resource units, the first network device can determine at least one first resource sub-unit indicated by the first pattern in the resource unit according to the first resource configuration. The first network device measures the signal in at least one first resource sub-unit in the resource unit to obtain the signal quality of the resource unit, and can obtain the signal quality of each of the Y resource units.

[0193] The signal quality may be a signal receiving power or other parameters that can represent the signal quality. For a resource unit, a measurement may be performed in each resource subunit of at least one resource subunit of the resource unit to obtain a measurement result, the measurement result including at least one signal quality corresponding to at least one resource subunit. The signal quality of the resource unit may be determined based on the measurement result obtained by measuring at least one resource subunit of the resource unit. For details, please refer to the description in step 602, which will not be repeated here.

[0194] In one implementation, the first network device may perform interference elimination based on the signal quality of Y resource units. The first network device may obtain interference characteristics of different beam directions within the coverage range (such as the mean, variance, covariance, etc. of the signal receiving power of the signal in the Y resource units) by configuring different Y resource units for different beam directions, and then minimize the uplink interference between systems through beam weight design. The first network device may also perform interference elimination based on the signal quality of Y resource units in other ways, and the present application is not limited to this.

[0195] In the present application, the first network device may use a beam to send a signal. A beam is a communication resource, and the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming a beam may be a beamforming technology or other technologies. In a spatial concept, a beam may correspond to a transmission direction. Compared with omnidirectional transmission, the signal of a beam is only transmitted within a certain angle range. In the present application, "transmission direction" may be used instead of a beam, and the beam may also be replaced by other terms, for example, "spatial filter" may be used instead of a beam. It should be understood that the present application does not exclude the possibility of defining other terms in future protocols to express the same or similar meanings.

[0196] Beams correspond to resources. For a beam, corresponding resources can be configured for the beam by protocol pre-definition or network device pre-configuration. When a signal is transmitted through the beam, the resource for transmitting the signal is the resource corresponding to the beam.

[0197] In the present application, Y resource units are associated with a first transmission direction of a signal of a first network device. The first transmission direction corresponds to a first beam, and the Y resource units are resources corresponding to the first beam.

[0198] In one implementation, the first network device may send the signal quality and area information of Y resource units to the second network device. The area information indicates the coverage range of the signal transmitted by the first network device in the first transmission direction, for example, the area information includes the coordinates of the center point of the coverage range and the radius of the coverage range. The second network device may be a non-terrestrial device, such as a satellite in an NTN system. Accordingly, when the second network device moves to the area corresponding to the coverage range, interference elimination may be performed based on the signal quality of the Y resource units. In this way, the second network device no longer needs to perform interference measurement, thereby improving resource utilization and reducing resource overhead.

[0199] Through the method of the present application, the network side can configure uplink interference measurement resources on sparse time-frequency domain resources, greatly reducing resource overhead, and can perform beam-level interference feature statistics and interference elimination.

[0200] In combination with the above description, the above method flow is described below through several specific embodiments.

[0201] like Fig.12 As shown, the first network device is a satellite in the NTN system, and the cell of the first network device on the ground is a geostationary cell, that is, within a certain period of time, the signal coverage range of the first network device is fixed relative to the ground. In the figure, although the position of the first network device changes from time t1 to time t2, the position of the cell remains unchanged.

[0202] The second configuration information sent by the first network device indicates Y resource units. Taking a resource unit including one RB in the frequency domain and one time slot in the time domain as an example, assuming Y=12, the second configuration information may include: number of occupied time slots=12, number of occupied RBs=12, starting time slot index=0, starting RB index=0, and comb tooth size=12.

[0203] like Fig.13 As shown, according to the second configuration information, the time-frequency position of Y=12 resource units indicated by the second configuration information can be determined. In the figure, one grid represents one resource unit, and the grids corresponding to the 12 resource units indicated by the second configuration information are filled with line patterns, and these resource units include at least one resource sub-unit indicated by the second pattern.

[0204] The second configuration information further indicates a second pattern. Taking a resource subunit including one RE as an example, the second configuration information includes: number of occupied symbols=2, number of occupied subcarriers=2, starting symbol index=3, and starting subcarrier index=4.

[0205] like Fig.14 As shown, 168 resource sub-units included in a resource unit are illustrated. According to the second configuration information, the positions of the four first resource sub-units indicated by the second configuration information in a resource unit can be determined. In the figure, a grid represents a resource sub-unit, and the grids corresponding to the four first resource units indicated by the second configuration information are filled with line patterns, and the terminal device no longer sends signals to these first resource sub-units.

[0206] The first network device measures the signal in the first resource sub-unit included in each of the 12 resource units indicated by the second configuration information, obtains the signal quality of each of the 12 resource units, and eliminates uplink interference according to the signal quality of these resource units.

[0207] For another example, the first network device and the second network device are satellites in the NTN system, the first cell of the first network device on the ground is a ground mobile cell, and the second cell of the second network device on the ground is a ground mobile cell. In each cell, the network device can cover the cell through multiple beams. As the network device moves, the coverage range of the beam will change.

[0208] like Fig.15 As shown, at time t0, in the first cell of the first network device, the coverage range of the signal corresponding to beam 0 of the first network device is area 0. In the second cell of the second network device, the coverage range of the signal corresponding to beam 1 of the second network device is area 1.

[0209] As the first network device moves, Fig.16 As shown, at time t1, the first cell of the first network device no longer includes area 0, and the coverage area corresponding to beam 0 becomes area 2. As the second network device moves, the second cell of the second network device includes area 0, and it is assumed that the coverage area corresponding to beam 1 becomes area 0.

[0210] Combined with the previous description, the second configuration information sent by the first network device indicates Y resource units. Taking a resource unit including one RB in the frequency domain and one time slot in the time domain as an example, assuming Y=12, the second configuration information may include: number of occupied time slots=12, number of occupied RBs=12, starting time slot index=0, starting RB index=0, and comb tooth size=12.

[0211] like Fig.17As shown, according to the second configuration information, the time-frequency position of Y=12 resource units indicated by the second configuration information can be determined. In the figure, one grid represents one resource unit, and the grids corresponding to the 12 resource units indicated by the second configuration information are filled with line patterns, and these resource units include at least one resource sub-unit indicated by the second pattern.

[0212] The second configuration information also indicates a second pattern. Taking a resource subunit including one RE as an example, the second configuration information includes: number of occupied symbols = 12, number of occupied subcarriers = 12, starting symbol index = 0, starting subcarrier index = 0, and comb tooth size = 12.

[0213] like Fig.18 As shown, 168 resource sub-units included in a resource unit are illustrated. According to the second configuration information, the positions of the 12 first resource sub-units indicated by the second configuration information in a resource unit can be determined. In the figure, a grid represents a resource sub-unit, and the grids corresponding to the 12 first resource units indicated by the second configuration information are filled with line patterns, and the terminal device does not send signals to these first resource sub-units.

[0214] At time t0, the first network device measures the signal in the first resource sub-unit included in each of the 12 resource units indicated by the second configuration information, obtains the signal quality of each of the 12 resource units, and eliminates the uplink interference on beam 0 based on the signal quality of these resource units.

[0215] Further, the first network device sends the signal qualities of the 12 resource units to the second network device and indicates the location of area 0.

[0216] At time t1, the second network device may eliminate uplink interference on beam 1 according to the signal quality of these resource units when the coverage range of beam 1 is area 0.

[0217] It is understandable that, in order to implement the functions in the above embodiments, the base station and the terminal include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0218] Fig.19 and Fig. 20The schematic diagram of the structure of possible communication devices provided by the embodiments of the present application. These communication devices can be used to implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments.

[0219] like Fig.19 As shown, the communication device 1900 includes a processing unit 1910 and a communication unit 1920. The communication device 1900 is used to implement the functions of the terminal device or the network device in the above method embodiment.

[0220] When the communication device 1900 is used to implement the functions of the terminal device:

[0221] A communication unit, configured to receive first resource configuration information from a network device; the first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; the first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device;

[0222] a processing unit, configured to measure a signal in at least one first resource sub-unit in the resource unit according to the first resource configuration information, to obtain signal qualities of the M resource units;

[0223] The communication unit is used to send interference feedback information to the network device, where the interference feedback information indicates frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer.

[0224] When the communication device 1900 is used to implement the function of a network device:

[0225] A processing unit, configured to determine first resource configuration information; the first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; the first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device;

[0226] A communication unit, used for sending the first resource configuration information to a terminal device.

[0227] When the communication device 1900 is used to implement the function of a network device:

[0228] A communication unit, configured to send second resource configuration information to at least one terminal device; the second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, Y is a positive integer; the first resource sub-unit does not include a signal of the at least one terminal device;

[0229] The processing unit is used to measure the signal in the at least one first resource sub-unit in the resource unit to obtain the signal quality of the Y resource units.

[0230] When the communication device 1900 is used to implement the functions of the terminal device:

[0231] A communication unit, configured to receive second resource configuration information from a first network device; the second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, and Y is a positive integer;

[0232] A processing unit is used to communicate with the first network device not through the first resource sub-unit among the Y resource units, or not send a signal through the first resource sub-unit among the Y resource units, according to the second resource configuration information.

[0233] A more detailed description of the processing unit 1910 and the communication unit 1920 can be directly obtained by referring to the relevant description in the method embodiment shown above, and will not be repeated here.

[0234] like Fig. 20 As shown, the communication device 2000 includes a processor 2010 and an interface circuit 2020. The processor 2010 and the interface circuit 2020 are coupled to each other. It is understood that the interface circuit 2020 can be a transceiver or an input-output interface. Optionally, the communication device 2000 may also include a memory 2030 for storing instructions executed by the processor 2010 or storing input data required by the processor 2010 to execute instructions or storing data generated after the processor 2010 executes instructions.

[0235] The processor 2010 in the communication device 2000 is used to implement the functions of the processing unit 1910 , and the interface circuit 2020 is used to implement the functions of the communication unit 1920 .

[0236] When the above communication device is a chip applied to a terminal device, the chip of the terminal device implements the functions of the terminal device in the above method embodiment. The chip of the terminal device receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal device; or the chip of the terminal device sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the base station.

[0237] When the above-mentioned communication device is a module applied to a network device, the module of the network device implements the function of the network device in the above-mentioned method embodiment. The module of the network device receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal to the network device; or, the module of the network device sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal. The module of the network device here can be a baseband chip of the network device, or it can be a DU or other module, and the DU here can be a DU under the open radio access network (open radio access network, O-RAN) architecture.

[0238] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0239] The method steps in the embodiments of the present application can be implemented by hardware, or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. Of course, the processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0240] 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 programs or instructions. When a computer program or instruction is loaded and executed on a computer, the process or function of the embodiment of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction 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 program or instruction can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc; it can also be a semiconductor medium, such as a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0241] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0242] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) that contain computer-usable program code.

[0243] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0244] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0245] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A communication method, characterized in that: include: Receiving first resource configuration information from a network device; The first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; The first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; Measuring a signal in at least one first resource sub-unit in the resource unit according to the first resource configuration information to obtain signal qualities of the M resource units; Interference feedback information is sent to the network device, where the interference feedback information indicates frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer.

2. The method according to claim 1, characterized in that The first pattern corresponds to the M resource units; Alternatively, the first pattern includes M patterns, and one pattern among the M patterns corresponds to one of the M resource units.

3. The method according to claim 1 or 2, characterized in that: The first resource configuration information indicates a first pattern, including: The first resource configuration information indicates an index of the first pattern; Alternatively, the first resource configuration information indicates pattern parameters of the first pattern, and the pattern parameters include at least one of the following: the number of symbols occupied by the at least one first resource sub-unit; the number of subcarriers occupied by the at least one first resource sub-unit; the starting symbol occupied by the at least one first resource sub-unit; the starting subcarrier of the at least one first resource sub-unit; and the comb tooth size of the at least one first resource sub-unit.

4. The method according to any one of claims 1 to 3, characterized in that: The first resource configuration information indicates M resource units, including: The first resource configuration information indicates at least one of the following: The number of time slots occupied by the M resource units; the number of resource blocks occupied by the M resource units; the starting time slot occupied by the M resource units; the starting resource block occupied by the M resource units; the frequency domain density of the M resource units; the time domain period of the M resource units; the comb tooth size of the M resource units.

5. The method according to any one of claims 1 to 4, characterized in that: The sending interference feedback information to the network device includes: If the first condition is met, interference feedback information is sent to the network device; The first condition includes at least one of the following: The M resource units include resource units whose signal quality is greater than or equal to a signal quality threshold; The M resource units include resource units whose signal quality is less than or equal to the signal quality threshold.

6. The method according to any one of claims 1 to 5, characterized in that: The N resource units satisfy at least one of the following: The N resource units are resource units with the top N signal qualities among the M resource units; The N resource units are resource units with the top X% signal quality among the M resource units, where X is a number greater than 0; The signal quality of the N resource units is greater than or equal to a signal quality threshold; The signal qualities of the N resource units are less than or equal to the signal quality threshold.

7. The method according to claim 5 or 6, characterized in that: The method further comprises: Feedback indication information is received from the network device, where the feedback indication information indicates reporting the interference feedback information.

8. The method according to claim 7, characterized in that The feedback indication information further indicates the first condition.

9. The method according to claim 6, characterized in that The method further comprises: Receiving scheduling information from the network device, the scheduling information indicating data transmission on a first time-frequency resource; If the N resource units are the top N resource units or the top X% resource units with the largest signal quality among the M resource units, or the signal quality of the N resource units is greater than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource does not overlap with the frequency domain of the N resource units; if the signal quality of the N resource units is less than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource overlaps with the frequency domain of the N resource units.

10. The method according to any one of claims 1 to 9, characterized in that: The network device is a non-terrestrial network device.

11. A communication method, characterized in that: include: Determining first resource configuration information; The first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; The first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; Send the first resource configuration information to the terminal device.

12. The method according to claim 11, characterized in that The method further comprises: Interference feedback information is received from the terminal device, where the interference feedback information indicates frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer.

13. The method according to claim 11 or 12, characterized in that: The first pattern corresponds to the M resource units; Alternatively, the first pattern includes M patterns, and one pattern among the M patterns corresponds to one of the M resource units.

14. The method according to any one of claims 11 to 13, characterized in that: The first resource configuration information indicates a first pattern, including: The first resource configuration information indicates an index of the first pattern; Alternatively, the first resource configuration information indicates pattern parameters of the first pattern, and the pattern parameters include at least one of the following: the number of symbols occupied by the at least one first resource sub-unit; the number of subcarriers occupied by the at least one first resource sub-unit; the starting symbol occupied by the at least one first resource sub-unit; the starting subcarrier of the at least one first resource sub-unit; and the comb tooth size of the at least one first resource sub-unit.

15. The method according to any one of claims 11 to 14, characterized in that: The first resource configuration information indicates M resource units, including: The first resource configuration information indicates at least one of the following: The number of time slots occupied by the M resource units; the number of resource blocks occupied by the M resource units; the starting time slot occupied by the M resource units; the starting resource block occupied by the M resource units; the frequency domain density of the M resource units; the time domain period of the M resource units; the comb tooth size of the M resource units.

16. The method according to any one of claims 12 to 15, characterized in that: The N resource units satisfy at least one of the following: The N resource units are resource units with the top N signal qualities among the M resource units, and the signal qualities of the resource units are determined according to the measurement results of the signals in at least one first resource sub-unit in the resource units; The N resource units are resource units with the top X% signal quality among the M resource units, where X is a number greater than 0; The signal quality of the N resource units is greater than or equal to a signal quality threshold; The signal qualities of the N resource units are less than or equal to the signal quality threshold.

17. The method according to any one of claims 12 to 16, characterized in that: The method further comprises: Feedback indication information is sent to the terminal device, where the feedback indication information indicates reporting the interference feedback information.

18. The method according to claim 17, characterized in that The feedback indication information instructs reporting the interference feedback information, including: The feedback indication information indicates that when a first condition is met, the interference feedback information is reported; The first condition includes at least one of the following: The M resource units include resource units whose signal quality is greater than or equal to a signal quality threshold, and the signal quality of the resource unit is determined according to a measurement result of a signal in at least one first resource sub-unit in the resource unit; The M resource units include resource units whose signal quality is less than or equal to the signal quality threshold.

19. The method according to claim 18, characterized in that The feedback indication information further indicates the first condition.

20. The method according to claim 16, characterized in that The method further comprises: Sending scheduling information to the terminal device, the scheduling information indicating data transmission at a first time-frequency resource; If the N resource units are the top N resource units or the top X% resource units with the largest signal quality among the M resource units, or the signal quality of the N resource units is greater than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource does not overlap with the frequency domain of the N resource units; if the signal quality of the N resource units is less than or equal to the signal quality threshold, the frequency domain of the first time-frequency resource overlaps with the frequency domain of the N resource units.

21. The method according to any one of claims 11 to 20, characterized in that: The network device is a non-terrestrial network device.

22. A communication method, characterized in that: include: Sending second resource configuration information to at least one terminal device; The second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, Y is a positive integer; the first resource sub-unit does not include a signal of the at least one terminal device; A signal in the at least one first resource sub-unit in the resource unit is measured to obtain signal qualities of the Y resource units.

23. A communication method, characterized in that: include: receiving second resource configuration information from the first network device; The second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, and Y is a positive integer; According to the second resource configuration information, communication with the first network device is not performed through the first resource sub-unit among the Y resource units, or signals are not sent through the first resource sub-unit among the Y resource units.

24. A communication device, characterized in that: include: A communication unit, configured to receive first resource configuration information from a network device; The first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; The first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; a processing unit, configured to measure a signal in at least one first resource sub-unit in the resource unit according to the first resource configuration information, to obtain signal qualities of the M resource units; The communication unit is used to send interference feedback information to the network device, where the interference feedback information indicates frequency domain resources corresponding to N resource units among the M resource units, where N is a positive integer.

25. A communication device, characterized in that: include: A processing unit, configured to determine first resource configuration information; The first resource configuration information indicates M resource units and a first pattern, where M is a positive integer; The first pattern indicates at least one first resource sub-unit in the resource unit; the first resource sub-unit does not include a signal of the network device; A communication unit, used for sending the first resource configuration information to a terminal device.

26. A communication device, characterized in that: include: A communication unit, configured to send second resource configuration information to at least one terminal device; The second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, Y is a positive integer; the first resource sub-unit does not include a signal of the at least one terminal device; The processing unit is used to measure the signal in the at least one first resource sub-unit in the resource unit to obtain the signal quality of the Y resource units.

27. A communication device, characterized in that: include: A communication unit, configured to receive second resource configuration information from the first network device; The second resource configuration information indicates Y resource units and a second pattern, the second pattern indicates at least one first resource sub-unit in the resource unit, and Y is a positive integer; A processing unit is used to communicate with the first network device not through the first resource sub-unit among the Y resource units, or not send a signal through the first resource sub-unit among the Y resource units, according to the second resource configuration information.

28. A communication device, characterized in that: including a processor, an interface circuit, and a memory; The processor is used to execute the computer program or instructions stored in the memory, so that the communication device implements the method described in any one of claims 1 to 23.

29. A computer-readable storage medium, characterized in that: A computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer is caused to implement the method according to any one of claims 1 to 23.

30. A chip, characterized in that: It includes a processor, which is coupled to a memory and is used to execute a computer program or instruction stored in the memory, so that the chip implements the method described in any one of claims 1 to 23.

31. A communication system, characterized in that: It comprises a network device and a terminal device, wherein the terminal device is used to implement the method according to any one of claims 1 to 10, and the network device is used to implement the method according to any one of claims 11 to 21.

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