Communication method and communication device

Abstract

An embodiment of the present application provides a communication method and a communication device. The method includes: when remote interference is detected, an access network device determines first information, uses the first information to configure the time domain resource of an SRS to move from a first time domain resource to a second time domain resource, where the strength of the remote interference on the second time domain resource is smaller than the strength of the remote interference on the first time domain resource, and sends the first information to a terminal. Based on the above method, when remote interference is detected, the access network device can move an important SRS to a location with lower interference, thereby reducing the remote interference to the SRS. After the interference on the SRS channel is reduced, the BF beam becomes more accurate, which can improve the beam signal-to-noise ratio of the terminal, improve performance such as downlink throughput, and help reduce the impact of remote interference on the uplink transmission of the access network device.

Description

[Technical Field]

[0001] TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and more particularly to a communication method and a communication device. [Background technology]

[0002] This application claims priority to Chinese Patent Application No. 202211105828.4, entitled "COMMUNICATION METHOD AND COMMUNICATION APPARATUS," filed on September 9, 2022, the entire contents of which are incorporated herein by reference.

[0003] Atmospheric ducts are natural phenomena that occur under certain meteorological and geographical conditions. In the troposphere of the Earth's atmosphere, there is a layer where temperature inversions or water vapor decrease rapidly with height. In this layer, super-refractive propagation of electromagnetic waves can occur, and most electromagnetic radiation is limited to this layer. This is similar to electromagnetic wave propagation in ducts. Atmospheric ducts usually occur in the boundary atmosphere below a height of 300 m. The propagation loss of electromagnetic waves in atmospheric ducts is extremely small. Therefore, electromagnetic waves can propagate over very long distances, and the propagation distance of electromagnetic waves is much greater than the normal radiation range.

[0004] In a time division duplex (TDD) system, uplink and downlink signals are time-division multiplexed, and a guard period (GP) is set to prevent downlink signals from interfering with uplink signals. The downlink direction is from the base station to the terminal, and the transmitted signal is the downlink signal. The uplink direction is from the terminal to the base station, and the transmitted signal is the uplink signal.

[0005] When atmospheric ducting occurs, the downlink signal from the remote base station still maintains high strength after being transmitted over extremely long distances of tens or hundreds of kilometers. The propagation delay of the downlink signal exceeds the duration of the guard period and falls within the reception window of the uplink signal from the local base station. The downlink signal from the remote base station causes severe interference to the uplink signal from the local base station. This interference is sometimes called remote interference.

[0006] Therefore, how to reduce the impact of remote interference on the uplink signal of a local base station has become an urgent problem to be solved. Summary of the Invention

[0007] The present application provides a communication method and a communication device that helps reduce interference.

[0008] According to a first aspect, there is provided a communication method, which may be performed by an access network device or by a module or unit in the access network device, which for ease of explanation will hereinafter be collectively referred to as the access network device.

[0009] The method includes:

[0010] The access network device determines first information when remote interference is detected, and the first information is configured to shift from a first time domain resource to a second time domain resource. , SRS , The second time domain resource is used to configure a time domain resource, and the strength of the remote interference on the second time domain resource is less than the strength of the remote interference on the first time domain resource, and the access network device sends first information to the terminal.

[0011] Based on the above method, when remote interference is detected, the access network device may move an important sounding reference signal (SRS) to a location with lower interference, so that the remote interference to the SRS is reduced, and after the interference to the SRS channel is reduced, the BF beam becomes more accurate, which can improve the beam signal-to-noise ratio of the terminal, improve performance such as downlink throughput, and help reduce the impact of remote interference on the uplink transmission of the access network device.

[0012] Regarding the first aspect, in a possible implementation, before the access network device sends the first information to the terminal, the method further includes: the access network device sets a first cell in which the terminal is located to a barred state, and the access network device moves all terminals in the first cell to a second cell. Sending the first information to the terminal by the access network device includes: when the terminal re-accesses the first cell, the access network device sends the first information to the terminal.

[0013] The different terminals may correspond to the same second cell or different second cells.

[0014] In existing remote interference avoidance technologies, there is no method for dynamically adjusting the SRS channel and another channel based on interference, and the configuration adjustment may be performed only based on the channel structure. In addition, for network channel adjustment, in conventional technologies, the two channel structures cannot coexist in the same cell, and a new cell must be established after the cell resources are entirely deleted to achieve the purpose of adjusting the channel structure. Based on the above method, the channel may be adjusted online after the user moves, and then a solution is used in which the user is automatically returned based on mobility, so that the channel is dynamically adjusted online based on interference to avoid remote interference.

[0015] With respect to the first aspect or any implementation of the first aspect, in another possible implementation, the second cell is a neighboring cell of the first cell, and / or the second cell and the first cell are cells of different standards.

[0016] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the first symbol of the second time domain resource is adjacent to the last symbol of a third time domain resource used for transmitting a physical uplink shared channel (PUSCH), and the first symbol of the second time domain resource is used for transmitting a first SRS, where the first SRS is an SRS for which antennas are not switched when the terminal switches from the PUSCH to the first SRS.

[0017] Based on the above method, when the second time domain resource is adjacent to a third time domain resource used for transmitting the physical uplink shared channel PUSCH, the access network device may preferentially allocate an SRS that does not require antenna switching on a first symbol (also referred to as an initial symbol) that is of the second time domain resource and adjacent to the third time domain resource, to avoid reserving antenna switching time and reduce resource overhead.

[0018] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the first SRS is used to determine a codebook (CB)-based PUSCH transmission mode.

[0019] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the method further includes: the access network device sends second information to the terminal based on a strength of remote interference on a fourth time domain resource, the second information being used to schedule the fourth time domain resource, where the fourth time domain resource includes the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located.

[0020] Based on the above method, the access network device may transmit a PUSCH by using a fourth time domain resource based on the strength of remote interference, which may help improve PUSCH resource utilization and improve uplink performance.

[0021] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the first time domain resource is after a guard period symbol. When the strength of remote interference on the last symbol in the guard period symbol is greater than a preset threshold, the second information is used to schedule the terminal to skip transmission of the physical uplink shared channel (PUSCH) on the first time domain resource and the guard period symbol; when the strength of remote interference on the last symbol in the guard period symbol is less than the preset threshold and the strength of remote interference on the first symbol in the guard period symbol is greater than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and skip transmission of the PUSCH on the guard period symbol; or when the strength of remote interference on the first symbol in the guard period symbol is less than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and on a symbol after the second symbol in the guard period symbol.

[0022] Based on the above method, the access network device may be used for transmitting the PUSCH based on the strength of remote interference, and may flexibly adjust the resources in the fourth time domain resource, so that the uplink resources can be maximally used to improve PUSCH resource utilization and improve uplink performance.

[0023] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the method further includes: the access network device sends second information to the terminal based on a distance between the terminal and the access network device, the second information being used to schedule a fourth time domain resource, where the fourth time domain resource includes the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located.

[0024] The remote interference has the greatest impact on the far-point user and the least impact on the near-point user. Based on the above method, the access network device may transmit the PUSCH by using the fourth time domain resource based on the distance between the terminal and the access network device, which can help improve PUSCH resource utilization and improve uplink performance.

[0025] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, when the terminal is a near-point terminal, the second information is used to schedule the terminal for transmission of a physical uplink shared channel (PUSCH) on the first time domain resource and on some of the guard period symbols; when the terminal is a mid-point terminal, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and to skip transmission of the PUSCH on the guard period symbols; or when the terminal is a far-point terminal, the second information is used to schedule the terminal to skip transmission of a PUSCH on the first time domain resource and on the guard period symbols.

[0026] Based on the above method, the access network device may be used for transmitting the PUSCH based on the distance between the terminal and the access network device, and may flexibly adjust the resources in the fourth time domain resource, so that the uplink resources can be maximized to improve PUSCH resource utilization and improve uplink performance.

[0027] Regarding the first aspect or any implementation of the first aspect, in another possible implementation, the method further includes: the access network device determines second information based on a strength of remote interference on a fourth time domain resource.

[0028] According to a second aspect, a communication device is provided. The device is configured to perform the method provided in any one of the above aspects or implementations of the above aspects. In particular, the device may include units and / or modules, such as a processing unit and / or a communication unit, configured to perform the method provided in any one of the above aspects or implementations of the above aspects.

[0029] In an implementation, the apparatus is an access network device. When the apparatus is an access network device, the communication unit may be a transceiver, an input / output interface, or a communication interface, and the processing unit may be at least one processor. Optionally, the transceiver is a transceiver circuit. Optionally, the input / output interface is an input / output circuit.

[0030] In another implementation, the apparatus is a chip, chip system, or circuit used in an access network device. When the apparatus is a chip, chip system, or circuit used in an access network device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, related circuit, etc. on the chip, chip system, or circuit, and the processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0031] According to a third aspect, there is provided a communications device, the device including: a memory configured to store a program; and at least one processor configured to execute a computer program or instructions stored in the memory to perform the method provided in any one of the above aspects or implementations of the above aspects.

[0032] In an implementation, the apparatus is an access network device.

[0033] In another implementation, the apparatus is a chip, chip system, or circuit used in an access network device.

[0034] According to a fourth aspect, a communication device is provided. The device includes at least one processor and a communication interface. The at least one processor is configured to retrieve a computer program or instructions stored in a memory through the communication interface to perform a method provided in any one of the above aspects or implementations of the above aspects. The communication interface may be implemented by hardware or software.

[0035] In implementations, the apparatus further includes a memory.

[0036] According to a fifth aspect, there is provided a processor configured to perform the method provided in the above aspect.

[0037] Unless otherwise specified, or when operations such as transmitting and acquiring / receiving related to a processor do not contradict actual functions or internal logic in the relevant description, the operations may be understood as operations such as output, reception, and input of the processor, or as transmitting and receiving operations performed by a radio frequency circuit and an antenna, which is not limited in this application.

[0038] According to a sixth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium storing program code to be executed by a device, the program code being used to implement the method provided in any one of the above aspects or implementations of the above aspects.

[0039] According to a seventh aspect, there is provided a computer program product comprising instructions, which when run on a computer, enable the computer to perform the method provided in any one of the above aspects or implementations of the above aspects.

[0040] According to an eighth aspect, a chip is provided. The chip includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface to perform the method provided in any one of the above aspects or implementations of the above aspects. The communication interface can be implemented by hardware or software.

[0041] Optionally, in the implementation, the chip further includes a memory. The memory stores a computer program or instruction. The processor is configured to execute the computer program or instruction stored in the memory. When the computer program or instruction is executed, the processor is configured to perform the method provided in any one of the above aspects or implementations of the above aspects.

[0042] According to a ninth aspect, there is provided a communication system, the communication system including the access network device as described above. [Brief explanation of the drawings]

[0043] [Figure 1] 1 is a diagram of a network architecture to which embodiments of the present application are applicable; [Figure 2] 2 is a schematic flow chart of a communication method 200 according to the present application. [Figure 3] A diagram of interference strength of GAP / SRS / U symbols in an NR remote interference scenario. [Figure 4] FIG. 1 is a diagram of active remote interference avoidance according to the present application. [Figure 5] 1 is a diagram of the channels contained in the S slot and U slot before and after SRS movement. [Figure 6] FIG. 1 is a diagram of an SRS migration process according to the present application. [Figure 7] FIG. 10 is a comparison diagram of downlink throughput. [Figure 8] FIG. 1 illustrates reserving antenna guard symbols in a conventional solution. [Figure 9] 10A and 10B are diagrams of three configurations of symbols in S slots. [Figure 10] 10 is a flowchart for flexibly configuring original SRS symbols and G symbols by a base station. [Figure 11] FIG. 1 is a diagram of remote interference to near-point and far-point users. [Figure 12] FIG. 10 is a diagram of an example of determining the symbol configuration in S slots based on the distance between the user and the base station. [Figure 13] 1 is a diagram of the structure of an apparatus according to an embodiment of the present application; [Figure 14] FIG. 2 is another diagram of the structure of the device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0044] The following describes the technical solutions of the embodiments in this application with reference to the accompanying drawings.

[0045] To facilitate understanding of the embodiments of the present application, the following explanation is first provided before the embodiments of the present application are described.

[0046] In this application, the term "indicating" or "indicating" may include direct and indirect indications; in other words, the term "indicating" or "indicating" may be an explicit indication and / or an implicit indication. For example, when a piece of information is described as indicating information I, this information may directly indicate I or indirectly indicate I, but it does not necessarily indicate that this information carries I. In another example, an implicit indication may be based on a location and / or resources used for transmission, and an explicit indication may be based on one or more parameters, and / or one or more indexes, and / or one or more bit patterns represented by the explicit indication.

[0047] The definitions listed for many features in this application are only used to explain the function of the features by using examples, and the detailed content of the definitions should be referred to the prior art.

[0048] In the following embodiments, terms such as "first", "second", "third", "A", "B", "C", and "D" are used to distinguish technical features in this technical feature. There is no chronological or dimensional order between the technical features described by the terms "first", "second", "third", "A", "B", "C", and "D".

[0049] "Predefined" may be implemented by prestoring corresponding code or tables in the device, or in another manner that may indicate related information. The specific implementation of "predefined" is not limited in this application. "Storage" may be storage in one or more memories. The type of memory may be any form of storage medium. This is not limited in this application.

[0050] The "protocol" in the embodiments of the present application may be a standard protocol in the communication field, and may include, for example, a long term evolution (LTE) protocol, a new radio (NR) protocol, and related protocols applied to future communication systems, which is not limited in the present application.

[0051] Each of the aspects, embodiments, or features is presented in this application in terms of a system that includes multiple devices, components, modules, etc. It is to be understood and appreciated that each of the systems may include other devices, components, modules, etc. and / or may not include all of the devices, components, modules, etc. discussed with reference to the accompanying drawings. Additionally, combinations of these solutions may be used.

[0052] In the embodiments of this application, terms such as "example," "for example," "exemplary," and "in another example" are used to denote providing an example, illustration, or explanation. Any embodiment or design manner described in this application as an "example" should not be interpreted as being preferred or having more advantages than another embodiment or design manner. Strictly speaking, the term "example" is used to present concepts in a particular manner.

[0053] The terms "comprise," "include," and "have," and variations thereof, all mean "including but not limited to," unless specifically emphasized otherwise in a different manner.

[0054] "At least one" means one or more, and "multiple" means two or more. The term "and / or" describes an association relationship between associated objects and indicates that three relationships may exist. For example, A and / or B may represent the presence of only A, the presence of both A and B, and the presence of only B, where A and B may be singular or plural. The character " / " generally indicates an "or" relationship between associated objects. "At least one of the following items (moieties)" or similar expressions refers to any combination of these items, including a single item (moiety) or any combination of multiple items (moieties). For example, at least one of a, b, and c may refer to a, b, c, a and b, a and c, b and c, or a, b, and c. Each of a, b, and c may be singular or plural.

[0055] In the embodiments of the present application, the related descriptions regarding sending a message, information, or data by network element A to network element B and receiving a message, information, or data by network element B from network element A are intended to describe the network element to which the message, information, or data is to be sent. Whether the message, information, or data is sent directly or indirectly through another network element is not limited.

[0056] In the embodiments of the present application, the descriptions such as "when...", "if...", and "if" all mean that the device performs the corresponding processing in the object, and are not limited to the time, and the device is not required to perform a decision-making act in the implementation. This does not mean that there is any other limitation.

[0057] Embodiments of the present application may be applied to various communication systems, such as a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a public land mobile network (PLMN), a fifth generation (5G) system, a sixth generation (6G) system, or a future communication system. The 5G system in this application includes a non-standalone (NSA) 5G mobile communication system or a standalone (SA) 5G mobile communication system. Embodiments of the present application may also be applied to a non-terrestrial network (NTN) communication system, such as a satellite communication system. Embodiments of the present application may further be applied to a device to device (D2D) communication system, a sidelink (SL) communication system, a machine to machine (M2M) communication system, a machine type communication (MTC) system, an Internet of things (IoT) communication system, a vehicle to everything (V2X) communication system, an unmanned aerial vehicle (UAV) communication system, or another communication system.

[0058] In the example, FIG. 1 is a diagram of a communication system.

[0059] FIG. 1 is an architecture diagram of a communication system 1000 to which an embodiment of the present application is applied. As shown in FIG. 1, the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may further include the Internet 300. The radio access network 100 may include at least one radio access network device (e.g., 110a and 110b in FIG. 1 ) and may further include at least one terminal (e.g., 120a to 120j in FIG. 1 ). The terminal is connected to the radio access network device in a wireless manner, and the radio access network device is connected to the core network in a wireless or wired manner. The core network device and the radio access network device may be separate and different physical devices, or the functions of the core network device and the logical functions of the radio access network device are integrated into the same physical device, or some functions of the core network device and some functions of the radio access network device are integrated into the physical device. Wired or wireless manners may be used for connections between terminals and between radio access network devices. FIG. 1 is only a diagram. The communication system may further include other network devices, for example, wireless relay devices and wireless backhaul devices not shown in FIG.

[0060] The terminal device in the embodiments of the present application may also be referred to as a terminal and may be a device having a wireless transceiver function. The terminal device may be an indoor device, an outdoor device, a handheld device, or an in-vehicle device, deployed on the ground, on the water (e.g., on a ship), or in the air (e.g., on an airplane, a balloon, or a satellite). The terminal device may be user equipment (UE). The UE includes a handheld device, an in-vehicle device, a wearable device, or a computing device with wireless communication capability. For example, the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function. Alternatively, the terminal device may be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in autonomous driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. In the embodiments of the present application, the device configured to implement the functions of the terminal may be a terminal, or may be a device capable of supporting the terminal in implementing the functions, such as a chip system. The device may be installed in the terminal. In the embodiments of the present application, the chip system may include a chip, or may include a chip and another individual component. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application are described by using an example in which the device configured to implement the functions of the terminal is a terminal, and the terminal is a UE.

[0061] The radio access network device in the embodiment of the present application may be, for example, a base station (BS), and the BS may be a device deployed in a radio access network and capable of performing wireless communication with a terminal. The radio access network device includes, but is not limited to, a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP) in the above-mentioned communication systems, a next generation NodeB (gNB) in a 5G mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, an access network device or a module of an access network device in an open access network (ORAN) system, a base station in a future mobile communication system, an access node in a Wi-Fi system, etc. Alternatively, the access network device may be a module or unit that can implement some functions of a base station. For example, an access network device may be a central unit (CU), a distributed unit (DU), a CU control plane (CP), a CU user plane (UP), or a radio unit (RU), which will be described below. In an ORAN system, a CU may also be referred to as an O-CU, a DU may also be referred to as an open (O)-DU, a CU-CP may also be referred to as an O-CU-CP, a CU-UP may also be referred to as an O-CUP-UP, and an RU may also be referred to as an O-RU. An access network device may be a macro base station (e.g., 110a in FIG. 1), a micro base station or an indoor base station (e.g., 110b in FIG. 1), a relay node or a donor node, or a radio controller in a cloud radio access network (CRAN) scenario.Optionally, the access network device may alternatively be a server, a wearable device, an in-vehicle device, etc. For example, an access network device in a vehicle-to-everything (V2X) technology may be a roadside unit (RSU). Multiple access network devices in a communication system may be the same type of base station or different types of base stations. A base station may communicate with a terminal, or may communicate with a terminal through a relay station. A terminal may communicate with multiple base stations using different access technologies. In the embodiments of the present application, an apparatus configured to implement the functions of a radio access network device may be a radio access network device, or may be an apparatus, such as a chip system, that can support the radio access network device in implementing the functions, and the apparatus may be installed in the radio access network device. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application will be described by using an example in which the apparatus configured to implement the functions of a radio access network device is a radio access network device, and the radio access network device is a base station.

[0062] The technical solutions provided in the embodiments of the present application are applied to wireless communication between communication devices. The wireless communication between communication devices may include wireless communication between a radio access network device and a terminal, wireless communication between radio access network devices, and wireless communication between terminals. In the embodiments of the present application, the term "wireless communication" may also be referred to as "communication" for short, and the term "communication" may also be described as "data transmission", "information transmission", or "transmission".

[0063] As mentioned in the background art, when remote interference occurs, the downlink signal of the remote base station can cause severe interference to the uplink signal of the local base station. A solution for avoiding remote interference is as follows: when the local base station detects remote interference from the remote base station, the local base station sends a remote interference management reference signal (RIM-RS) 1 to the remote base station; after receiving RIM-RS 1, the remote base station reduces the amount of symbols used for the downlink to eliminate interference to the local base station and sends RIM-RS 2 to the local base station; and the local base station continues to send RIM-RS 1 until RIM-RS 2 is no longer received from the remote base station. In this way, the remote base station can continuously adjust the amount of symbols used for the downlink based on RIM-RS 1 until the local base station is no longer affected. It can be seen that current solutions for avoiding remote interference rely on mutual detection of RIM-RS between the remote base station and the local base station, and the remote base station reduces the amount of symbols sent on the downlink to eliminate the impact on the local base station.

[0064] First, the above solutions rely heavily on cooperation between the remote and local base stations to enable mutual detection and identify remote interference. In cross-country / cross-vendor device scenarios, negotiation is difficult. For example, in multiple countries outside of China, mutual interference can easily occur. However, spectrum allocation varies, making it difficult to coordinate the interests of operators, and interference detection and avoidance cannot be implemented. In addition, in asymmetric and non-reciprocal interference scenarios, the RIM-RS used for interference detection may not be transmitted. As a result, interference avoidance may not be triggered. In addition, when interference increases, the RIM-RS capacity may be affected by the interfering signal. As a result, the RIM-RS cannot be correctly demodulated, affecting the probability of detecting the interference source.

[0065] Due to the above problems, the present application provides a communication method and a communication apparatus for reducing the impact of remote interference on uplink transmissions of an access network device.

[0066] The communication method provided in this application is described below.

[0067] FIG. 2 is a schematic flow chart of a communication method 200 according to the present application.

[0068] The method 200 includes at least some of the following:

[0069] Step 201: The access network device determines first information when remote interference is detected.

[0070] The first information is used to configure a time domain resource of a sounding reference signal (SRS) to move from a first time domain resource to a second time domain resource, and a strength of remote interference on the second time domain resource is less than a strength of remote interference on the first time domain resource.

[0071] In other words, when remote interference is detected, the access network device may move the SRS to a time domain resource with low or no interference.

[0072] The manner of detecting remote interference by the access network device is not limited in this application. For example, the interference level and the characteristics of the uplink symbols of the access network device are determined, and when the interference state changes from no interference state to interference state, the interference characteristics exhibit a "gradient" characteristic, that is, the interference level of the left symbol is higher than the interference level of the right symbol, thereby obtaining a determination result of remote interference to the access network device. The detection process can be implemented based on an algorithm in the access network device. Alternatively, whether the interference changes can be determined manually based on statistical results regarding the uplink symbols.

[0073] Step 202: The access network device sends first information to the terminal.

[0074] In response, the terminal receives the first information sent by the access network device.

[0075] In other words, the access network device reconfigures the time domain location of the SRS for the terminal.

[0076] Based on the above method, when remote interference is detected, the access network device may move the important SRS to a location with low interference, thereby reducing the remote interference to the SRS. After the interference to the SRS channel is reduced, the BF beam becomes more accurate, which can improve the beam signal-to-noise ratio of the terminal, improve performance such as downlink throughput, and help reduce the impact of remote interference on the uplink transmission of the access network device.

[0077] Optionally, in some other implementations of the present application, the method 200 may further include: before the access network device sends the first information to the terminal, the access network device sets a first cell in which the terminal is located to a barred state, and moves all terminals in the first cell to a second cell.

[0078] Step 202 includes: When the terminal re-accesses the first cell, the access network device sends first information to the terminal.

[0079] Existing remote interference avoidance technologies lack a method for dynamically adjusting the SRS channel and another channel based on interference, and the configuration adjustment may be performed only based on the channel structure. In addition, for network channel adjustment, in conventional technologies, the two channel structures cannot coexist in the same cell, and a new cell must be established after the cell resources are entirely deleted to achieve the purpose of adjusting the channel structure. Based on the above method, the channel may be adjusted online after the user moves, and then a solution is used in which the user automatically returns based on mobility, whereby the channel is dynamically adjusted online based on interference to avoid remote interference.

[0080] Optionally, the second cell is a neighboring cell of the first cell, and / or the second cell and the first cell are cells of different standards.

[0081] Optionally, the first symbol of the second time domain resource is adjacent to the last symbol of the third time domain resource used for transmitting the PUSCH, and the first symbol of the second time domain resource is used for transmitting a first SRS, and the first SRS is an SRS for which antennas are not switched when the terminal switches from the PUSCH to the first SRS.

[0082] Optionally, the first SRS is used to determine a codebook CB-based PUSCH transmission mode.

[0083] Based on the above method, when the second time domain resource is adjacent to a third time domain resource used for transmitting the physical uplink shared channel PUSCH, the access network device may preferentially allocate an SRS that does not require antenna switching on a first symbol (also referred to as an initial symbol) that is of the second time domain resource and adjacent to the third time domain resource, to avoid reserving antenna switching time and reduce resource overhead.

[0084] Optionally, in some other implementations of the present application, the method 200 may further include the following step: Step 203: The access network device sends second information to the terminal, where the second information is used to schedule a fourth time domain resource, the fourth time domain resource including the first time domain resource and a guard period symbol in the slot in which the first time domain resource is located. In this way, the access network device reuses the fourth time domain resource for transmitting a PUSCH to improve PUSCH resource utilization and help improve uplink performance.

[0085] In a possible implementation, step 203 includes: the access network device sends second information to the terminal based on the strength of remote interference on the fourth time domain resource, In this way, the access network device may transmit the PUSCH by using the fourth time domain resource based on the strength of remote interference, which may help to improve PUSCH resource utilization and improve uplink performance.

[0086] In the example, the first time domain resource is after the guard period symbol. When the strength of remote interference on the last symbol in the guard period symbol is greater than a preset threshold, the second information is used to schedule the terminal to skip transmission of the physical uplink shared channel (PUSCH) on the first time domain resource and the guard period symbol; when the strength of remote interference on the last symbol in the guard period symbol is less than the preset threshold and the strength of remote interference on the first symbol in the guard period symbol is greater than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and skip transmission of the PUSCH on the guard period symbol; or when the strength of remote interference on the first symbol in the guard period symbol is less than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and on the symbol after the second symbol in the guard period symbol. Note that in the above example, only three levels of utilization of the fourth time domain resource are used as an example, and more or fewer levels can be obtained through division.

[0087] Optionally, the first symbol may be any symbol other than the first and last symbols in the guard period symbols.

[0088] In this way, the access network device may be used for transmitting the PUSCH based on the strength of remote interference and may flexibly adjust the resources in the fourth time domain resource, so that the uplink resources can be maximized to improve PUSCH resource utilization and improve uplink performance.

[0089] Optionally, in some other implementations of the present application, the method 200 may further include step 203.

[0090] In another possible implementation, step 203 includes: the access network device sends second information to the terminal based on the distance between the terminal and the access network device. Remote interference has the greatest impact on the far-point user and the least impact on the near-point user. Based on the above method, the access network device may transmit a PUSCH by using a fourth time domain resource based on the distance between the terminal and the access network device, which can help improve PUSCH resource utilization and improve uplink performance.

[0091] In the example, when the terminal is a near-point terminal, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and on some of the guard period symbols, when the terminal is a mid-point terminal, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and skip transmission of the PUSCH on the guard period symbols, or when the terminal is a far-point terminal, the second information is used to schedule the terminal to skip transmission of a PUSCH on the first time domain resource and on the guard period symbols. It should be noted that in the above example, only three levels of utilization of the fourth time domain resource are used as an example, and more or fewer levels can be obtained through division.

[0092] Based on the above method, the access network device may be used for transmitting the PUSCH based on the distance between the terminal and the access network device, and may flexibly adjust the resources in the fourth time domain resource, so that the uplink resources can be maximized to improve PUSCH resource utilization and improve uplink performance.

[0093] Optionally, before the access network device sends the second information to the terminal based on a distance between the terminal and the access network device, the method 200 further includes: the access network device determines the second information based on a strength of remote interference on a fourth time domain resource.

[0094] The communication method in this application will be described below with reference to a specific scenario. In the following, GAP symbol or G symbol represents a guard period symbol, U symbol represents an uplink symbol, and D symbol represents a downlink symbol. The interference may be a remote interference, and the base station may correspond to the above access network device.

[0095] This application is mainly intended to solve the problem of how to actively avoid interference through interference identification at the interfering end and design a manner of dynamically moving the SRS based on interference in a remote interference scenario when interference avoidance is performed without relying on mutual detection between two parties, as well as how the interfering end should identify and dynamically adjust the channel location of the SRS based on interference, and how to provide a solution for coordinating with other channels based on the optimized SRS channel location. Figure 3 is a diagram of the interference strength of the GAP / SRS / U symbol in an NR remote interference scenario. As shown in Figure 3, the S slot is the weakest to interference and suffers the greatest interference impact.

[0096] In this application, through remote interference identification, the SRS is dynamically moved to a location far away from the interference, and the GAP symbol and the original SRS symbol in the S slot are dynamically used for PUSCH scheduling based on the interference level of the S slot.

[0097] The communication method in the above embodiment of Figure 2 will be described in detail below with reference to the specific embodiments of Figures 4 to 12. Steps in the embodiments of Figures 4 to 12 and the embodiment of Figure 2 may also be cross-referenced, and terms and concepts may also be cross-referenced.

[0098] FIG. 4 is a diagram of active remote interference avoidance according to the present application.

[0099] As shown in Figure 4, D slots 5 and 6 of the remote base station may interfere with the S slot of the local base station. In this case, the local base station may move the SRS from the original S slot to U slot 9 to avoid the interference of D slots 5 and 6 of the remote base station with the SRS. Note that Figure 4 presents a diagram of an uplink-downlink configuration with an 8:2 configuration.

[0100] 5 shows detailed diagrams of the channels included in the S slot and U slot after expansion, before and after SRS migration. In the default state of FIG. 5, in the diagram of the channels included in the S slot and U slot before SRS migration, it can be seen that the SRS is transmitted in the S slot. In the SRS migration state, in the diagram of the channels included in the S slot and U slot after SRS migration, it can be seen that the SRS is transmitted in the U slot.

[0101] Embodiment 1 The following describes the overall design and processing of the SRS move-and-avoid solution triggered based on remote interference identification.

[0102] (1) The design and processing of the solution based on interference identification is shown in the following figure.

[0103] In this application, the base station needs to identify remote interference on the UL symbol and adjust the channel configuration style of the cell based on the interference. However, for online users in the cell, it is impossible to schedule the two channel structures shown in Figure 5 in one cell at the same time.

[0104] Therefore, the present application is designed to design a migration process shown in Figure 6. Based on the migration process of the present application, it can be ensured that the online user is not directly interrupted, but the user is redirected and moved, and then the user performs re-access after resource adjustment is used for implementation.

[0105] FIG. 6 is a diagram of the SRS migration process according to the present application.

[0106] Step 1: Detect and determine interference. At the interference end, the interference level and the characteristics of the uplink symbols of the gNodeB are determined. If the interference state changes from no interference to interference, the interference characteristics exhibit a "gradient" characteristic, i.e., the interference level of the left symbol is higher than that of the right symbol, thereby obtaining a determination result of remote interference to the gNodeB. The detection and determination can be implemented based on a gNodeB algorithm. Alternatively, whether the interference changes can be determined manually based on statistical results regarding the uplink symbols.

[0107] When it is manually determined whether interference changes (corresponding to a branch where automatic interference determination is not implemented), the SRS resources may be manually reconfigured (e.g., through a network management device) if remote interference occurs and is subsequently manually determined. When detection and determination may be implemented based on a gNodeB algorithm (corresponding to a branch where automatic interference determination is implemented), steps 2 to 4 below may then be implemented.

[0108] Step 2: Barring the cell and releasing online users. The cell enters a barring state and new users are not allowed to access / be handed over to the cell. All online users begin to release in the cell and users are handed over or redirected to a neighboring cell / users are switched or redirected to a neighboring standard to prepare for channel adjustment in the following steps.

[0109] Step 3: Reconfigure the channel structure, such as SRS channel and location. The SRS is dynamically adjusted to the corresponding location.

[0110] Step 4: Release the barred state of the cell and allow the user to re-access the cell. After the channel structure is adjusted, the cell is released from the barred state and the user is automatically returned to the cell based on their mobility. In this case, the adjustment is complete.

[0111] In this way, the present application provides a method for avoiding remote interference by moving the SRS channel to a location with low interference through interference identification and then moving the SRS after the interference is identified to reduce interference to the SRS. After the interference to the SRS channel is reduced, the BF beam becomes more accurate, improving the UE's beam signal-to-noise ratio and improving performance such as downlink throughput. The downlink throughput (NR downlink throughput) obtained before and after the method of the present application is applied is shown in FIG. 7. It can be seen that after the method of the present application is applied, the downlink throughput can be essentially the same as the downlink throughput obtained when there is no interference to the SRS.

[0112] Embodiment 2 Based on embodiment 1, embodiment 2 provides a solution in which when SRS is allocated in the U slot, no switching symbols are reserved for antenna selection terminals between PUSCH and SRS.

[0113] In particular, during switching between PUSCH and SRS, antenna switching may occur, and antenna switching time needs to be reserved; in the conventional solution, one symbol needs to be reserved for protection, as shown in Fig. 8. In the solution of embodiment 2, CB SRS is preferentially allocated on the initial symbol. In this way, the antenna selection terminal does not need to reserve antenna switching time during switching between PUSCH and SRS, and thus the overhead of one symbol can be reduced.

[0114] In the prior art, SRS and PUSCH are in the same slot. For antenna-selecting terminals, dynamic AS allocation is performed on different symbols, so one symbol needs to be reserved for antenna switching protection during AS allocation. Based on embodiment 2, the AS / CB SRS allocation pattern is optimized, and CB SRS is preferentially allocated on the initial symbol adjacent to PUSCH, so that guard symbols for antenna switching do not need to be fixedly reserved. Based on embodiment 2, antenna-selecting UEs do not need to reserve antenna switching time for switching between PUSCH and SRS, reducing the overhead of one symbol. The amount of symbols occupied by PUSCH is reduced by 1, and the overhead is reduced by approximately 2% to 4% (depending on different configurations).

[0115] Embodiment 3 Based on embodiment 1 and / or embodiment 2, embodiment 3 provides a method for scheduling a PUSCH in an S slot based on interference after an SRS moves from an S slot to a U slot.

[0116] Possible modes are in particular:

[0117] After the SRS movement, the SRS occupies the GAP symbols in the S slots to schedule U. However, interference may affect some symbols, and only low-interference symbols may be occupied.

[0118] For example, there may be three configurations shown in Figure 9 for the symbols in the S slot in Embodiment 3. In the configuration shown in the first row, G symbols 7 and 8 and the original SRS symbol may be occupied for transmitting uplink signals, and this configuration may be referred to as the "highest level." In the configuration shown in the second row, the original SRS symbol may be occupied for transmitting uplink signals, and this configuration may be referred to as the "intermediate level." In the configuration shown in the third row, the G symbol and the original SRS symbol cannot be occupied for transmitting uplink signals, and this configuration may be referred to as the "shortest level." In the case of low interference, the configuration shown in the first row may be used, in the case of partial interference, the configuration shown in the intermediate row may be used, and in the case of high interference, the configuration shown in the third row may be used.

[0119] To achieve the effect shown in FIG. 3, the base station may perform the process shown in FIG.

[0120] FIG. 10 is a flowchart for flexibly constructing the original SRS symbols and G symbols by the base station.

[0121] As shown in Figure 10, the base station performs interference detection on the symbols in the S slot and performs periodic reporting. When the power of the last G symbol (i.e., symbol 9) in the S slot is equal to or greater than a threshold, it is determined that the "shortest level" should be used. Alternatively, when the power of the last G symbol in the S slot is less than the threshold, it may further determine whether the power of the second G symbol (i.e., symbol 7) in the S slot is less than the threshold. When the power of the second G symbol (i.e., symbol 7) in the S slot is equal to or greater than the threshold, it is determined that the "medium level" should be used. Alternatively, when the power of the second G symbol (i.e., symbol 7) in the S slot is less than the threshold, it is determined that the "highest level" should be used. After the configuration of the symbols in the S slot is determined, the S slot can be scheduled for the level notification module based on the corresponding level (i.e., the level takes effect).

[0122] Another possible mode of realization is in particular the following.

[0123] As shown in Figure 11, remote interference is more likely to affect higher-layer beams and has a smaller impact on lower-layer beams than on higher-layer beams. However, near-point users usually occupy lower-layer beams, and far-point users usually occupy higher-layer beams. Therefore, remote interference has a smaller impact on near-point users and a larger impact on far-point users. When S slots are interfered with, far-point users are most impacted, and near-point users can still be scheduled. Near-point users are expected to fully utilize high-interference symbols.

[0124] Based on this, the base station may determine the configuration of symbols in S slots based on the distance between the user and the base station. For example, for a near-point user, the "highest level" shown in Figure 9 may be used, for a mid-point user, the "middle level" shown in Figure 9 may be used, and for a far-point user, the "shortest level" may be used.

[0125] For example, Figure 12 shows an example in which a base station may determine the configuration of symbols in S slots based on the distance between the user and the base station. As shown in Figure 12, the "highest level" shown in Figure 9 may be used for a near-point large packet user, the "middle level" shown in Figure 9 may be used for a mid-point large packet user, and the "shortest level" may be used for a far-point small packet user.

[0126] In this way, based on embodiment 3, the length of the symbols in the S slots can be adjusted more flexibly based on the interference information and based on different degrees of interference, so that the uplink symbols can be used to the fullest extent to improve the PUSCH resources and improve the uplink performance.

[0127] Above, the method provided in the present application is described in detail with reference to Figures 2 to 12. Below, the apparatus embodiment of the present application is described in detail with reference to Figures 13 and 14.

[0128] To implement the functions in the above embodiments, the device in Figure 13 or 14 may be understood to include corresponding hardware structures and / or software modules for performing the functions. Those skilled in the art should easily realize that the units and method steps in the examples described in relation to the embodiments disclosed in this application can be implemented by hardware or a combination of hardware and computer software.

[0129] 13 and 14 are diagrams of possible device structures according to embodiments of the present application. These devices may be configured to implement the functions of the access network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.

[0130] 13, the device 10 includes a transceiver unit 11 and a processing unit 12. The transceiver unit 11 may implement corresponding communication functions, and the processing unit 12 is configured to process data. The transceiver unit 11 may also be referred to as a communication interface or a communication unit.

[0131] Optionally, the apparatus 10 may further include a storage unit (not shown in FIG. 13 ). The storage unit may be configured to store instructions and / or data. The processing unit 12 may read the instructions and / or data in the storage unit to enable the apparatus to implement the above method embodiments.

[0132] The apparatus 10 may be configured to perform the actions performed by the access network device in the above method embodiments. In this case, the apparatus 10 may be an access network device or a component that may be disposed in the access network device. The transceiver unit 11 is configured to perform the receiving and sending-related operations of the access network device in the above method embodiments, and the processing unit 12 is configured to perform the processing-related operations of the access network device in the above method embodiments.

[0133] In design, when the apparatus 10 is configured to implement the function of the access network device in the above method embodiment, the processing unit 12 is configured to determine first information when remote interference is detected, and the first information is configured to generate a sounding reference signal (SRS) to move from a first time domain resource to a second time domain resource. , SRS , The second time domain resource is used to configure a time domain resource of the first base station, and the strength of the remote interference on the second time domain resource is smaller than the strength of the remote interference on the first time domain resource, and the transceiver unit 11 is configured to send the first information to the terminal.

[0134] Optionally, before the first information is sent to the terminal, the processing unit 12 is further configured to set the first cell in which the terminal is located to a barred state and move all terminals in the first cell to the second cell. The transceiver unit 11 is particularly configured to send the first information to the terminal when the terminal re-accesses the first cell.

[0135] Optionally, the second cell is a neighboring cell of the first cell, and / or the second cell and the first cell are cells of different standards.

[0136] Optionally, the first symbol of the second time domain resource is adjacent to the last symbol of the third time domain resource used for transmitting a physical uplink shared channel (PUSCH), and the first symbol of the second time domain resource is used for transmitting a first SRS, the first SRS being an SRS for which antennas are not switched when the terminal switches from the PUSCH to the first SRS.

[0137] Optionally, the first SRS is used to determine a codebook CB-based PUSCH transmission mode.

[0138] Optionally, the transceiver unit 11 is further configured to send second information to the terminal based on the strength of remote interference on the fourth time domain resource, the second information being used to schedule the fourth time domain resource, the fourth time domain resource including the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located.

[0139] Optionally, the first time domain resource is after a guard period symbol. When the strength of remote interference on the last symbol in the guard period symbol is greater than a preset threshold, the second information is used to schedule the terminal to skip transmission of the physical uplink shared channel PUSCH on the first time domain resource and the guard period symbol; when the strength of remote interference on the last symbol in the guard period symbol is less than the preset threshold and the strength of remote interference on the first symbol in the guard period symbol is greater than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and skip transmission of the PUSCH on the guard period symbol; or when the strength of remote interference on the first symbol in the guard period symbol is less than the preset threshold, the second information is used to schedule the terminal for transmission of the PUSCH on the first time domain resource and on a symbol after the second symbol in the guard period symbol.

[0140] Optionally, the transceiver unit 11 is further configured to send second information to the terminal based on a distance between the terminal and the access network device, the second information being used to schedule a fourth time domain resource, the fourth time domain resource including the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located.

[0141] Optionally, when the terminal is a near-point terminal, the second information is used to schedule the terminal for transmission of a physical uplink shared channel (PUSCH) on the first time domain resource and on some of the guard period symbols; when the terminal is a mid-point terminal, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and skip transmission of the PUSCH on the guard period symbols; or when the terminal is a far-point terminal, the second information is used to schedule the terminal to skip transmission of a PUSCH on the first time domain resource and on the guard period symbols.

[0142] Optionally, the processing unit 12 is further configured to determine the second information based on a strength of the remote interference on the fourth time domain resource.

[0143] For more detailed descriptions of the transceiver unit 710 and the processing unit 720, please refer to the related descriptions in the above method embodiments, and the details will not be described again here.

[0144] 14, the apparatus 20 includes a processor 21. The processor 21 is coupled to a memory 23, which is configured to store instructions. When the apparatus 20 is configured to implement the above-described method, the processor 21 is configured to execute the instructions in the memory 23 to implement the functions of the processing unit 12 described above.

[0145] Optionally, the device 20 further comprises a memory 23 .

[0146] Optionally, the device 20 further includes an interface circuit 22. The processor 21 and the interface circuit 22 are coupled to each other. It may be understood that the interface circuit 22 may be a transceiver or an input / output interface. When the device 20 is configured to implement the above-described method, the processor 21 is configured to execute instructions to implement the functions of the processing unit 12 described above, and the interface circuit 22 is configured to implement the functions of the transceiver unit 11 described above.

[0147] For example, when the apparatus 20 is a chip used in an access network device, the chip implements the functions of the access network device in the above method embodiments. The chip receives information from another module (e.g., a radio frequency module or an antenna) in the access network device, and this information is sent to the access network device by the other apparatus. Alternatively, the chip sends information to another module (e.g., a radio frequency module or an antenna) in the access network device, and this information is sent to the other apparatus by the access network device.

[0148] The present application further provides a communication device including a processor. The processor is coupled to a memory. The memory is configured to store computer programs or instructions and / or data. The processor is configured to execute the computer programs or instructions stored in the memory or read the data stored in the memory to implement the method in the above method embodiments. Optionally, there are one or more processors. Optionally, the communication device includes a memory. Optionally, there are one or more memories. Optionally, the memory and the processor are integrated together or arranged separately.

[0149] The present application further provides a computer-readable storage medium, which stores computer instructions for implementing the method performed by the access network device in the above method embodiments.

[0150] The present application further provides a computer program product including instructions, which when executed by a computer, implement the methods performed by the access network device in the above method embodiments.

[0151] The present application further provides a communication system, which includes the access network device in the above embodiment.

[0152] For the explanation of the related contents and beneficial effects in any one of the above provided devices, please refer to the corresponding method embodiments provided above, and the details will not be described again in this specification.

[0153] It may be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0154] The method steps in the embodiments of the present application may be implemented in a hardware manner or in a manner in which software instructions are executed by a processor. The software instructions may include corresponding software modules. The software modules may 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 removable hard disk, a compact disc read-only memory (CD-ROM), or any other form of storage medium well known in the art. For example, the storage medium may be coupled to the processor, thereby allowing the processor to read information from and write information to the storage medium. Of course, the storage medium may be components of the processor. The processor and the storage medium may be disposed in an ASIC. In addition, the ASIC may be located in an access network device. Of course, the processor and the storage medium may alternatively be present as separate components in the access network device.

[0155] All or part of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, all or part of the procedures or functions described in the embodiments of the present application are performed. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, user equipment, or another programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium may be any available medium that can be accessed by a computer, or may be a data storage device, such as a server or data center, incorporating one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape, or may be an optical medium, such as a digital video disk, or may be a semiconductor medium, such as a solid state drive.

[0156] In the embodiments of the present application, unless otherwise specified or there is no logical contradiction, the terms and / or descriptions in different embodiments are consistent and may be cross-referenced, and the technical features in different embodiments may be combined based on their internal logical relationships to form a new embodiment.

[0157] It may be understood that various numbers in the embodiments of the present application are used only for distinction purposes for ease of description, and are not used to limit the scope of the embodiments of the present application. The sequence numbers of the above processes do not mean the execution sequence. The execution sequence of the processes should be determined based on the function and internal logic of the processes.

[0158] Unless otherwise specified, the meanings of all technical and scientific terms used in the embodiments of this application are the same as those commonly understood by those skilled in the art of this application. The terms used in this application are intended only to describe the purpose of specific embodiments and are not intended to limit the scope of this application. It should be understood that the above are illustrative examples, and the above examples are intended only to help those skilled in the art understand the embodiments of this application and are not intended to limit the embodiments of this application to specific values ​​or specific scenario examples. It is clear that those skilled in the art can make various equivalent modifications or variations based on the examples described above, and such modifications and variations also fall within the scope of the embodiments of this application.

[0159] The above description is merely a specific implementation of the present application and is not intended to limit the scope of protection of the present application. Any variations or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. 1. A method of communication, the method comprising: determining, by the access network device, first information when remote interference is detected, the first information being used to configure a time domain resource of a sounding reference signal (SRS) to be moved from a first time domain resource to a second time domain resource, and a strength of the remote interference on the second time domain resource is less than a strength of the remote interference on the first time domain resource; sending, by the access network device, the first information to a terminal; A communication method, including:

2. Before the step of sending the first information to the terminal by the access network device, the method further comprises: setting, by the access network device, a first cell in which the terminal is located to a barred state; moving, by the access network device, all terminals in the first cell to a second cell; further comprising The step of sending the first information to the terminal by the access network device comprises: sending, by the access network device, the first information to the terminal when the terminal re-accesses the first cell. The method of claim 1 , comprising:

3. the second cell is a neighboring cell of the first cell, and / or the second cell and the first cell are cells of different standards; The method of claim 2.

4. a first symbol of the second time domain resource is adjacent to a last symbol of a third time domain resource used for transmission of a physical uplink shared channel (PUSCH), the first symbol of the second time domain resource is used for transmission of a first SRS, and the first SRS is an SRS for which an antenna is not switched when the terminal switches from the PUSCH to the first SRS.

4. The method according to any one of claims 1 to 3.

5. The first SRS is used to determine a codebook CB-based PUSCH transmission mode based on a; The method of claim 4.

6. The method comprises: sending, by the access network device, second information to the terminal based on a strength of remote interference on a fourth time domain resource, the second information being used to schedule the fourth time domain resource, the fourth time domain resource including the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located; The method of claim 1 , further comprising:

7. the first time domain resource is after the guard period symbol; When a strength of remote interference on a last symbol in the guard period symbols is greater than a preset threshold, the second information is used to schedule the terminal to skip transmission of a physical uplink shared channel (PUSCH) on the first time domain resource and the guard period symbols; or When the strength of remote interference on the last symbol in the guard period symbols is smaller than a preset threshold and the strength of remote interference on the first symbol in the guard period symbols is greater than the preset threshold, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and skip transmission of a PUSCH on the guard period symbols; or When a strength of remote interference on a first symbol in the guard period symbol is smaller than a preset threshold, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and on a symbol after the second symbol in the guard period symbol. The method of claim 6.

8. The method comprises: sending, by the access network device, second information to the terminal based on a distance between the terminal and the access network device, the second information being used to schedule a fourth time domain resource, the fourth time domain resource including the first time domain resource and a guard period symbol in a slot in which the first time domain resource is located; The method of claim 1 , further comprising:

9. When the terminal is a near-point terminal, the second information is used to schedule the terminal for transmission of a physical uplink shared channel (PUSCH) on the first time domain resource and a portion of the guard period symbols, or When the terminal is an intermediate terminal, the second information is used to schedule the terminal for transmission of a PUSCH on the first time domain resource and skip transmission of a PUSCH on the guard period symbol; or When the terminal is a far-point terminal, the second information is used to schedule the terminal to skip transmission of a PUSCH on the first time domain resource and the guard period symbol. The method of claim 8.

10. The method comprises: determining, by the access network device, the second information based on a strength of remote interference on the fourth time domain resource; 10. The method of claim 8 or 9, further comprising:

11. A communication device, A processor configured to execute a computer program stored in a memory to enable the device to perform the method of any one of claims 1 to 10. A communication device comprising:

12. The apparatus of claim 11 , further comprising the memory.

13. 11. A computer-readable storage medium storing a computer program, the computer program enabling the computer to perform the method of any one of claims 1 to 10 when run on the computer.

14. A computer program product, said computer program product comprising instructions for carrying out the method of any one of claims 1 to 10.

15. A communication system comprising an access network device configured to implement the method of any one of claims 1 to 10.

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