CN111756507B

CN111756507B - Remote interference management method and device

Info

Publication number: CN111756507B
Application number: CN201910252842.9A
Authority: CN
Inventors: 郝金平
Original assignee: Chengdu Huawei Technology Co Ltd
Current assignee: Chengdu Huawei Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2021-10-22
Anticipated expiration: 2039-03-29
Also published as: CN111756507A; WO2020199938A1

Abstract

A remote interference management method and a device are used for solving the problem that in the prior art, after interfered access network equipment in an interfered area is interfered, the performance of a cell in the interfered area is reduced due to untimely measures. The method comprises the following steps: a first network device receives first information sent by a second network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), the RS is used for indicating that the second network device is subjected to remote interference, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device; and the first network equipment sends first RS configuration information to the second network equipment.

Description

Remote interference management method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for remote interference management.

Background

Under special atmospheric conditions, electromagnetic waves propagating in the atmosphere are influenced by atmospheric refraction, the propagation track of the electromagnetic waves bends to the ground, and when the curvature exceeds the curvature of the earth surface, the electromagnetic waves are partially trapped in an atmospheric thin layer with a certain thickness, just like the electromagnetic waves propagate in a waveguide, and the phenomenon is called an atmospheric waveguide phenomenon. In addition, due to the existence of the atmospheric waveguide phenomenon, a downlink signal transmitted from a base station in the area a may propagate to the area B. Wherein, the distance between the area B and the area A can reach 300 kilometers. If the base station in zone B is performing uplink transmission, the downlink signal propagating from zone a to zone B may interfere with the uplink transmission of the base station in zone B. Generally, such interference is referred to as Remote Interference (RI). The area a is an interference source (accumulator) area, and the area B is an interfered area (victim).

Currently, in a Remote Interference Management (RIM) process, when a Victim is subjected to remote interference, an access network device at the Victim sends a Reference Signal (RS), where the RS is used to notify the access network device in an interference source area that the remote interference occurs.

According to the discussion of 3GPP, and in the existing RIM, both configuration of RS and transmission and reception of RS are done by Operation Administration and Maintenance (OAM). When remote interference exists, the OAM configures the interfered access network equipment to send the RS signal. However, OAM requires a certain time to configure the RS for the access network devices in the interfered area. If measures are not timely taken after the interfered access network equipment in the interfered area is interfered, the performance of cells in the interfered area is reduced.

Disclosure of Invention

The application provides a remote interference management method and a remote interference management device, which are used for solving the problem that in the prior art, the performance of a cell in an interfered area is reduced due to untimely measures after interfered access network equipment in the interfered area is interfered.

In a first aspect, a remote interference management method according to an embodiment of the present application includes: a first network device receives first information sent by a second network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), the RS is used for indicating that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device; and the first network equipment sends first RS configuration information to the second network equipment. Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of the RS is configured through the centralized unit or the core network device, so that the sending is more timely and flexible, the configuration time can be saved, and the cell performance can be ensured.

In one possible design, the receiving, by the first network device, the first information sent by the second network device may include: the first network device receives an interference strength indication reported by the second network device, where the interference strength indication is used to characterize a degree of remote interference to the second network device, and the interference strength indication carries the first information. In the above design, the second network device requests the configuration information of the reference signal RS from the first network device through the interference strength indication, so that the first network device can determine the configuration information of the RS in time, configure the RS configuration information for the second network device, reduce the configuration time, and ensure the cell performance.

In one possible design, the sending, by the first network device, the first RS configuration information to the second network device may include: the first network device sends a first message to the second network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device. In the above design, the first network device sends the first RS configuration information to the second network device when sending the group identifier to the second network device, so that the second network device can perform RS configuration in time according to the first RS configuration information, thereby reducing the configuration time and further ensuring the cell performance.

In one possible design, the first RS configuration information may include at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved.

In one possible design, the first RS configuration information may be first indication information indicating a resource set, where the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved. Moreover, the information redundancy can be reduced by indicating the RS configuration information by the indication information.

In one possible design, before the first network device sends the first RS configuration information to the second network device, the first network device may further receive second information sent by the second network device, where the second information is used to indicate RS configuration information preferentially selected by the second network device; and the first network equipment determines the first RS configuration information according to the second information. In the above design, the second network device sends the second information to indicate the first network device that the second network device preferentially selects the RS configuration information, so that the first network device can determine the first RS configuration information in combination with the second information, and thus can select better RS configuration information, thereby improving the performance of remote interference management.

In one possible design, the first information and the second information may be carried in the same message.

In one possible design, the first information and the second information may also be carried in different messages.

In one possible design, the second information may be second RS configuration information, and the second RS configuration information includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the first network equipment can accurately know the specific content of the RS configuration information preferentially selected by the second network equipment, so that the RS configuration accuracy can be improved.

In one possible design, the second information may be second indication information indicating a resource set, where the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the first network equipment can accurately know the specific content of the RS configuration information preferentially selected by the second network equipment, so that the RS configuration accuracy can be improved. Moreover, the information redundancy can be reduced by indicating the RS configuration information by the indication information.

In one possible design, the first network device may further send the first RS configuration information to an operations, administration, and maintenance, OAM. Through the design, the OAM can configure the network equipment of the interference source region to receive the RS according to the first RS configuration information.

In one possible design, the first RS configuration may be configured by OAM.

In a second aspect, a remote interference management method according to an embodiment of the present application includes: a second network device sends first information to a first network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), the RS is used for indicating that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device; the second network equipment receives first Reference Signal (RS) configuration information sent by the first network equipment; the second network equipment determines second RS configuration information according to the first RS configuration information; and the second network equipment sends the RS according to the second RS configuration information. Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of the RS is configured through the centralized unit or the core network device, so that the sending is more timely and flexible, the configuration time can be saved, and the cell performance can be ensured.

In one possible design, the second RS configuration information is the same as the first RS configuration information; or the second RS configuration information is not identical to the first RS configuration information. In the above design, the second network device may determine the second RS configuration information according to the service scheduling condition of the second network device and the first RS configuration information, for example, the second network device may determine the sending time of the RS, the sending period of the RS, and the like according to the service scheduling condition of the second network device, that is, the sending period and the sending time of the second RS configuration information and the first RS configuration information may be different, and the frequency point occupied by the RS of the second RS configuration information and the first RS configuration information, the bandwidth of the RS, and the sequence of the RS may be the same.

In one possible design, the sending, by the second network device, the first information to the first network device may include: the second network equipment sends an interference strength indication to the first network equipment, wherein the interference strength indication is used for representing the degree of remote interference on the second network equipment, and the interference strength indication carries the first information. In the above design, the second network device requests the configuration information of the reference signal RS from the first network device through the interference strength indication, so that the first network device can determine the configuration information of the RS in time, configure the RS configuration information for the second network device, reduce the configuration time, and ensure the cell performance.

In one possible design, the receiving, by the second network device, the first RS configuration information sent by the first network device may include: the second network device receives a first message sent by the first network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device. In the above design, the first network device sends the first RS configuration information to the second network device when sending the group identifier to the second network device, so that the second network device can perform RS configuration in time according to the first RS configuration information, thereby reducing the configuration time and further ensuring the cell performance.

In one possible design, the first RS configuration information includes at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved.

In one possible design, the first RS configuration information is first indication information, and the first indication information is used to indicate a resource set, where the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved. Moreover, the information redundancy can be reduced by indicating the RS configuration information by the indication information.

In one possible design, the second network device may further send, to the first network device, second information indicating RS configuration information preferentially selected by the second network device. In the above design, the second network device sends the second information to indicate the first network device that the second network device preferentially selects the RS configuration information, so that the first network device can determine the first RS configuration information in combination with the second information, and thus can select better RS configuration information, thereby improving the performance of remote interference management.

In a third aspect, a remote interference management method according to an embodiment of the present application includes: the first access network device determines to be remotely interfered; the first access network equipment determines configuration information of a Reference Signal (RS), wherein the RS is used for indicating that remote interference exists; and the first access network equipment sends the configuration information to second access network equipment, wherein the first access network equipment and the second access network equipment belong to the same access network equipment group. Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of each access network device RS in the whole access network device group is coordinated through one access network device in the access network device group, so that the sending is more timely and more flexible, the configuration time can be saved, and the cell performance can be ensured.

In one possible design, the first RS configuration information includes at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second access network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved.

In one possible design, the first RS configuration information may be first indication information indicating a resource set, where the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second access network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved. Moreover, the information redundancy can be reduced by indicating the RS configuration information by the indication information.

In a possible design, before the first access network device determines the configuration information of the reference signal RS, it may further receive second information sent by the second access network device, where the second information is used to indicate RS configuration information preferentially selected by the second access network device; the determining, by the first access network device, configuration information of a reference signal RS includes: and the first access network equipment determines the first RS configuration information according to the second information. In the above design, the second access network device sends the second information to indicate the first access network device that the second access network device preferentially selects the RS configuration information, so that the first access network device can determine the first RS configuration information in combination with the second information, and thus, better RS configuration information can be selected, and performance of remote interference management is improved.

In one possible design, the second information may be third RS configuration information, and the third RS configuration information includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the first access network equipment can accurately know the specific content of the RS configuration information preferentially selected by the second access network equipment, so that the RS configuration accuracy can be improved.

In one possible design, the second information may be second indication information indicating a resource set, where the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the first access network equipment can accurately know the specific content of the RS configuration information preferentially selected by the second access network equipment, so that the RS configuration accuracy can be improved. Moreover, the information redundancy can be reduced by indicating the RS configuration information by the indication information.

In one possible design, the first access network device may further send the first RS configuration information to an operation, administration and maintenance, OAM. Through the design, the OAM can configure the access network equipment of the interference source region to receive the RS according to the first RS configuration information.

In another possible design, the first RS configuration information may be preconfigured by OAM.

In a fourth aspect, a remote interference management method according to an embodiment of the present application includes: a second access network device receives first Reference Signal (RS) configuration information sent by a first access network device, wherein the first access network device and the second access network device belong to the same access network device group; the second access network equipment determines second RS configuration information according to the first RS configuration information; and the second access network equipment sends an RS according to the second RS configuration information, wherein the RS is used for indicating that remote interference exists. Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of each access network device RS in the whole access network device group is configured by one access network device in the access network device group, so that the sending is more timely and more flexible, the configuration time can be saved, and the cell performance can be ensured.

In one possible design, the second RS configuration information may be the same as the first RS configuration information; alternatively, the second RS configuration information may not be identical to the first RS configuration information. In the above design, the second access network device may determine the second RS configuration information in combination with the service scheduling condition of the second access network device and the first RS configuration information, for example, the second access network device may determine the sending time of the RS, the sending period of the RS, and the like in combination with the service scheduling condition of the second access network device, that is, the sending period and the sending time of the second RS configuration information and the first RS configuration information may be different, and the frequency point occupied by the RS of the second RS configuration information and the first RS configuration information, the bandwidth of the RS, and the sequence of the RS may be the same.

In one possible design, the first RS configuration information may include at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Through the design, the second access network equipment can accurately know the specific content of the RS configuration information, so that the RS configuration accuracy can be improved.

In one possible design, the second access network device may send, to the first access network device, second information when it is determined to be subjected to remote interference, where the second information is used to indicate RS configuration information preferentially selected by the second access network device. In the above design, the second access network device sends the second information to indicate the first access network device that the second access network device preferentially selects the RS configuration information, so that the first access network device can determine the first RS configuration information in combination with the second information, and thus, better RS configuration information can be selected, and performance of remote interference management is improved.

In a fifth aspect, the present application provides a communication apparatus, which may be a network device, or may be a chip or a chipset in the network device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the apparatus may further include a storage unit, which may be a memory; the storage unit is configured to store an instruction, and the processing unit executes the instruction stored in the storage unit to enable the network device to perform the corresponding function in the first aspect, or executes the instruction stored in the storage unit to enable the network device to perform the corresponding function in the second aspect. When the apparatus is a chip or a chipset within a network device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes an instruction stored in the storage unit to cause the network device to perform the corresponding function in the first aspect, or the processing unit executes an instruction stored in the storage unit to cause the network device to perform the corresponding function in the second aspect, where the storage unit may be a storage unit (e.g., a register, a cache, etc.) in the chip or the chipset, or a storage unit (e.g., a read-only memory, a random access memory, etc.) outside the chip or the chipset in the terminal device.

In a sixth aspect, a communication apparatus is provided, including: a processor, a communication interface, and a memory. The communication interface is used for transmitting information, and/or messages, and/or data between the device and other devices. The memory is configured to store computer executable instructions, and when the apparatus is running, the processor executes the computer executable instructions stored in the memory, so as to enable the apparatus to perform the remote interference management method according to the first aspect or any one of the first aspects, or the remote interference management method according to any one of the second aspects or the second aspects.

In a seventh aspect, the present application further provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the above aspects.

In an eighth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

Fig. 1 is a schematic diagram of a RIM process provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of another RIM process provided in an embodiment of the present application;

fig. 3 is a schematic view of a remote interference scenario provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a radio access network device divided into CUs and DUs according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a radio access network device divided into CU-CP, CU-UP and DU according to an embodiment of the present application;

fig. 6 is a flowchart of a remote interference management method according to an embodiment of the present application;

fig. 7 is a schematic process diagram of remote interference management according to an embodiment of the present application;

fig. 8 is a schematic process diagram of another remote interference management provided in the embodiment of the present application;

fig. 9 is a flowchart of another remote interference management method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Remote Interference Management (RIM) is a proposed technical solution for solving remote interference. Currently, the remote interference management process may be as shown in fig. 1, and specifically includes the following steps. Step 0, an atmospheric waveguide phenomenon occurs, and a downlink signal sent by a wireless access network device in an interference source (accumulator) area causes remote interference to the reception of an uplink signal by the wireless access network device in an interfered (visibility) area. Step 1, detecting remote interference by a wireless access network device in an interfered area, and sending a Reference Signal (RS) through an air interface, wherein the RS is used for indicating that the remote interference is received. Operation Administration and Maintenance (OAM) configures a radio access network device in an interference source (accumulator) area to start monitoring the RS, or starts monitoring an RS signal after the radio access network device in the accumulator area detects remote interference. Step 2, the radio access network device in the interference source area monitors the received RS, sends a notification of receiving the RS to the radio access network device in the interfered area through a wired link, wherein the wired link can be a transmission link through an Xn interface or a transmission link through a core network, and executes a scheme (remote interference transmission schemes) for eliminating remote interference. And 3, the wireless access network equipment in the interference source region monitors that the RS is not received, stops executing the scheme for eliminating the remote interference, stops RS monitoring and sends a notice for stopping sending the RS to the wireless access network equipment in the interfered region. And 4, the wireless access network equipment in the interfered area receives the notice of stopping transmitting the RS, and stops transmitting the RS.

The remote interference management process may be as shown in fig. 2, and specifically includes the following steps. Step 0, an atmospheric waveguide phenomenon occurs, and a downlink signal sent by a wireless access network device in an interference source (accumulator) area causes remote interference to the reception of an uplink signal by the wireless access network device in an interfered (visibility) area. Step 1, detecting remote interference by the radio access network equipment in the interfered area, and sending a Reference Signal (RS) through an air interface, wherein the RS signal is marked as RS-1, and the RS-1 is used for indicating that the remote interference is received. The method includes that a wireless access network device in an interference source (aggregator) area starts to monitor the RS, or the wireless access network device in the aggregator area starts to monitor RS signals after detecting remote interference. And 2, after monitoring the received RS-1, the wireless access network equipment in the interference source region executes a scheme for eliminating remote interference and sends an RS signal, wherein the RS signal is marked as RS-2, and the RS-2 is used for indicating that an atmospheric waveguide phenomenon exists. And step 3, if the radio access network equipment in the interfered area receives the RS-2, continuously transmitting the RS-1, and stopping transmitting the RS-1 until the RS-2 disappears, or stopping transmitting the RS-1 when the remote interference strength value is lower than the threshold value. And 4, if the radio access network equipment in the interference source region receives the RS-1, continuously adopting a scheme for eliminating the remote interference until the RS-1 signal disappears, stopping the remote interference elimination measure and recovering to normal configuration.

Based on this, embodiments of the present application provide a remote interference management method and apparatus, so as to solve the problem in the prior art that performance of a cell in an interfered area is reduced due to RS signals configured by OAM. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The embodiment of the present application may be applied to, but not limited to, a Next Radio (NR) system, a time division duplex long term evolution (TDD-LTE) system, and other communication systems, and may also be extended to a cellular system related to wireless fidelity (WiFi), worldwide interoperability for microwave access (wimax), a future wireless communication system, and a third generation partnership project (3 GPP). For example, a communication system architecture of the embodiment of the present application may be as shown in fig. 3, and includes an interference source region and an interfered region, where the interference source region includes at least one radio access network device, and the interfered region includes at least one radio access network device, where the radio access network device in the interference source region may generate remote interference to the radio access network device in the interfered region. It should be understood that fig. 3 is only an exemplary illustration and is not intended to specifically limit the number of radio access network devices included in the interference source region and the interfered region. The communication system shown in fig. 3 may further include other devices, such as a core network device, a terminal, a relay device, and a backhaul device, which is not limited to this embodiment of the present application.

It should be understood that the radio access network device in the embodiment of the present application is used for accessing the terminal to the wireless network. A radio access network device may be referred to as a base station and may also be referred to as a Radio Access Network (RAN) node (or device). For example, the radio access network device may be a next-generation Node B (Gnb), a Transmission Reception Point (TRP), 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 Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP).

For example, the structure of the radio access network device in the embodiment of the present application may be as shown in fig. 4. Specifically, the radio access network device may be divided into a Centralized Unit (CU) and at least one Distributed Unit (DU). The CU may be configured to manage or control at least one DU, and may also be referred to as a CU connected to at least one DU. This structure can separate the protocol layers of the radio access network equipment in the communication system, wherein part of the protocol layers are centrally controlled by the CU, and the rest or all of the functions of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU. Taking radio access network equipment as an example of a gNB, a protocol layer of the gNB includes a Radio Resource Control (RRC) layer, a Service Data Adaptation Protocol (SDAP) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a media access control sublayer (MAC) layer, and a physical layer. For example, the CU may be configured to implement the functions of the RRC layer, the SDAP layer, and the PDCP layer, and the DU may be configured to implement the functions of the RLC layer, the MAC layer, and the physical layer. The embodiment of the present application does not specifically limit the protocol stacks included in the CU and the DU.

For example, a CU in the embodiment of the present application may be further divided into a control plane (CU-CP) network element and a plurality of user plane (CU-user plane, CU-UP) network elements. Wherein, the CU-CP can be used for control plane management, and the CU-UP can be used for user plane data transmission. The interface between the CU-CP and the CU-UP can be the E1 port. The interface between the CU-CP and the DU may be F1-C for transport of control plane signaling. The interface between CU-UP and DU may be F1-U for user plane data transmission. And the CU-UP can be connected through an Xn-U port to carry out user plane data transmission. For example, taking the gbb as an example, the structure of the gbb may be as shown in fig. 5.

It should be understood that "at least one" in the embodiments of the present application means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, both A and B, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein a, b and c can be single or multiple.

The following describes a remote interference management method provided in the present application with reference to the accompanying drawings.

Referring to fig. 6, a flowchart of a remote interference management method provided in the present application is shown. The method comprises the following steps:

s601, the second network device sends first information to the first network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), and the RS is used for indicating that remote interference exists. Correspondingly, the first network device receives the first information sent by the second network device.

The first network device may be a CU, and the second network device is a DU. Alternatively, the first network device may also be a core network device, such as an AMF, and the second network device is an access network device.

In a specific implementation, if the second network device is a network device in an interfered area, the second network device may send the first information to the first network device after determining that the second network device is interfered by the remote interference. Or, if the second network device is a network device of the interference source region, the second network device may also send the first information to the first network device after receiving the RS sent by the third network device of the interfered region. Illustratively, the RS transmitted by the third network device of the interfered area may be a reference signal labeled RS-1.

S602, the first network device sends first RS configuration information to the second network device. Correspondingly, the second network device receives the first reference signal RS configuration information sent by the first network device.

For an exemplary illustration, the first RS configuration information may be specific RS configuration information, for example, the first RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

In another exemplary illustration, the first RS configuration information may be first indication information, where the first indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. The first indication information may be, but is not limited to, an index of the resource set, or an identifier of the resource set, etc.

In a specific implementation, before the first network device sends the first RS configuration information to the second network device, the second network device may further send second information to the first network device, where the second information is used to indicate RS configuration information preferentially selected by the second network device. After receiving the second information, the first network device may determine the first RS configuration information according to the second information. Wherein, the first information and the second information can be carried in the same message. Alternatively, the first information and the second information may be carried in different messages.

For example, the second information may be specific RS configuration information, for example, the second information is second RS configuration information, and the second RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Alternatively, the second information may be a configuration list, and the configuration list may include a plurality of RS configuration information.

Or, the second information may also be second indication information, where the second indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Likewise, the second indication information may be, but is not limited to, an index of the resource set, or an identification of the resource set, and so forth. Alternatively, the second information may be a set, which may include an identification or index of multiple resource sets, etc.

S603, the second network device determines third RS configuration information according to the first RS configuration information. Wherein the third RS configuration information is the same as the first RS configuration information; or the third RS configuration information is not identical to the first RS configuration information.

S604, the second network device sends RS according to the third RS configuration information.

The following describes a remote interference management method provided in the embodiments of the present application with reference to specific embodiments.

The first embodiment is as follows: taking the first network device as the gbb-CU of the interfered area access network and device, and the second network device as the gbb-DU connected to the gbb-CU as an example, the process of remote interference management may be as shown in fig. 7.

S701, the gNB-DU determines that remote interference exists.

In some embodiments, if the gbb-DU is a gbb-DU of the interfered area, the gbb-DU may determine that remote interference exists when it is determined that the remote interference is received.

In other embodiments, if the gNB-DU is a gNB-DU of the interference source region, the gNB-DU may determine that remote interference exists when receiving an RS transmitted by a network device of the interfered region. Illustratively, the RS transmitted by the network device of the interfered area may be a reference signal labeled RS-1.

S702, the gNB-DU sends an interference strength indication to the gNB-CU, the interference strength indication is used for representing the degree of remote interference on the second network equipment, and the interference strength indication carries the first information.

In a specific implementation, the first information may be carried in the interference strength indicator as one information element, or the interference strength indicator is used as the first information, that is, when the gNB-DU sends the interference strength indicator to the gNB-CU, it may be considered that the gNB-DU requests the configuration information of the reference signal RS from the gNB-CU.

In addition, when the gNB-DU sends the interference strength indication to the gNB-CU, second information may also be sent to the gNB-CU, where the second information is used to indicate RS configuration information preferentially selected by the second network device. The second information may be specific RS configuration information, for example, the second information is second RS configuration information, and the second RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Alternatively, the second information may be a configuration list, and the configuration list may include a plurality of RS configuration information. Or, the second information may also be second indication information, where the second indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Likewise, the second indication information may be, but is not limited to, an index of the resource set, or an identification of the resource set, and so forth. Alternatively, the second information may be a set, which may include an identification or index of multiple resource sets, etc.

Specifically, the second information may be carried in the same message as the interference strength indication for transmission. Of course, the second information may also be carried in different messages with the interference strength indication and sent successively, for example, the second information may be sent first and then sent after the interference strength indication, or the interference strength indication may be sent first and then sent after the second information, where the sending order and the sending form of the second information and the interference strength indication are not specifically limited.

S703, the gNB-CU sends the first RS configuration information to the gNB-DU. The first RS configuration information may be specific RS configuration information, for example, the first RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Or, the first RS configuration information may be first indication information, where the first indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. The first indication information may be, but is not limited to, an index of the resource set, or an identifier of the resource set, etc.

In a specific implementation, the first RS configuration information may be that the gNB-CU is determined according to the second information.

In one implementation, the gNB-CU may group the gNB-DUs based on the interference strength indication. Thus, the gNB-CU can send the first RS configuration information to the gNB-DU upon sending the corresponding distribution unit group identity to the gNB-DU. That is, the first RS configuration information may be transmitted in the same message as the distribution unit group identifier.

Of course, the first RS configuration information distribution unit group identifier may also be carried in different messages for transmission.

In some embodiments, the gNB-CU may also send the first RS configuration information to the OAM. Thus, the OAM receives the RS at the network device that can configure the interference source region according to the first RS configuration information.

In other embodiments, the OAM may pre-configure RS configuration information to the gNB-CU, such that the gNB-CU may determine the first RS configuration information based on the OAM pre-configured RS configuration information when receiving the RS configuration request of the gNB-DU.

Alternatively, the gNB-CU may request RS configuration information from the OAM in advance, so that the gNB-CU may determine the first RS configuration information according to the RS configuration information of the OAM configuration when receiving the RS configuration request of the gNB-DU.

Or, the gNB-CU may also request RS configuration information from the OAM after receiving the RS configuration request of the gNB-DU, so that the gNB-CU may determine the first RS configuration information according to the RS configuration information configured by the OAM.

S704, the gNB-DU determines third RS configuration information according to the first RS configuration information.

Wherein the third RS configuration information may be identical to the first RS configuration information. Alternatively, the third RS configuration information may not be completely the same as the first RS configuration information. For example, the gNB-DU may determine a transmission time, a transmission period, and the like of the corresponding RS according to its own traffic scheduling, i.e., the third RS configuration information may be different from the transmission time, the transmission period, and the like of the first RS configuration information.

S705, the gNB-DU sends the RS according to the third RS configuration information.

Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of the RS is configured through the CU, so that the sending is more timely and more flexible, the configuration time can be saved, and the cell performance can be ensured.

Example two: taking the first network device as the gNB-CU of the interfered area and the second network device as the gNB-DU connected to the gNB-CU as an example, the process of remote interference management can be as shown in fig. 8.

S801, refer to S701 specifically, and details are not repeated here.

S802, the gNB-DU sends first information to the gNB-CU.

In a specific implementation, when the gNB-DU sends the first information to the gNB-CU, the gNB-DU may also send second information to the gNB-CU, where the second information is used to indicate RS configuration information preferentially selected by the second network device. The second information may be specific RS configuration information, for example, the second information is second RS configuration information, and the second RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Or, the second information may also be second indication information, where the second indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Likewise, the second indication information may be, but is not limited to, an index of the resource set, or an identification of the resource set, and so forth.

Specifically, the second information may be carried in the same message as the first information and sent. Of course, the second information may also be carried in different messages with the first information and sent successively, for example, the second information may be sent first and then the first information, or the first information may be sent first and then the second information is sent, where the sending order and the sending form of the second information and the first information are not particularly limited.

S803, the gNB-CU sends the first RS configuration information to the gNB-DU. The first RS configuration information may be specific RS configuration information, for example, the first RS configuration information may include at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Or, the first RS configuration information may be first indication information, where the first indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. The first indication information may be, but is not limited to, an index of the resource set, or an identifier of the resource set, etc.

In a specific implementation, after receiving the first information of the gNB-DU, the gNB-CU sends RS configuration to the DU. Or, the gNB-CU may also wait for a certain time, and send the first RS configuration information to the requesting gNB-DU or all the gNB-DUs in the packet after the first information is reported by a certain number of gNB-DUs, or after a certain time clock ends. Wherein the first RS configuration information may be determined by each of the gNB-CUs according to the second information.

S804 and S805 may refer to step S704 and step S705 specifically, and details are not repeated here.

Example three: taking the first network device as the AMF and the second network device as the gNB as an example, the process of remote interference management may be shown in fig. 7 or fig. 8, and will not be repeated here. It should be noted that the execution subject of the third embodiment is not used in the execution subjects of the first and second embodiments, and specifically, the actions executed by the gNB-CU in the first and second embodiments are executed by the AMF in the third embodiment, and the actions executed by the gNB-DU in the first and second embodiments are executed by the gNB in the third embodiment.

Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM. In the embodiment of the application, the sending of the RS is configured through the AMF, so that the sending is more timely and more flexible, the configuration time can be saved, and the cell performance can be ensured.

Referring to fig. 9, a flow chart of another remote interference management method provided by the present application is shown. The method comprises the following steps:

s901, the first access network device determines that there is remote interference. Illustratively, the first access network device may be a cluster head gNB in a gNB packet.

In some embodiments, if the first access network device is an access network device of an interfered area, the first access network device may determine that remote interference exists when determining that the remote interference is received.

In other embodiments, if the first access network device is an access network device in an interference source region, the first access network device may determine that remote interference exists when receiving an RS sent by the access network device in an interfered region. Illustratively, the RS transmitted by the access network device in the interfered area may be a reference signal labeled RS-1.

S902, the first access network device determines configuration information of a Reference Signal (RS), wherein the RS is used for indicating that remote interference exists.

In some embodiments, before the first access network device determines the configuration information of the reference signal RS, it may further receive second information sent by the second access network device, where the second information is used to indicate RS configuration information preferentially selected by the second access network device. Accordingly, the first access network device may determine the first RS configuration information according to the second information. The second information may be specific configuration information, for example, the second information is second RS configuration information, and the second RS configuration information includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Or, the second information may also be second indication information, where the second indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

Wherein, the first information and the second information can be carried in the same message. Alternatively, the first information and the second information may be carried in different messages.

Specifically, the first access network device may determine the configuration information of the reference signal RS after determining that the first access network device is subjected to the remote interference. Or, the first access network device may also wait for a certain time, and determine the configuration information of the reference signal RS after a certain number of second access network devices report the second information, or after a certain time clock ends.

S903, the first access network device sends first RS configuration information to a second access network device, wherein the first access network device and the second access network device belong to the same access network device group. Correspondingly, the second access network device receives the first reference signal RS configuration information sent by the first access network device.

The first RS configuration information is specific content of the configuration information determined in step S902, and includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS. Alternatively, the first RS configuration information may also be used to indicate a resource set, where the resource set includes the configuration information determined in step S902, for example, the first RS configuration information may be an identifier, an index, and the like of the resource set.

In a specific implementation, the first access network device may send the configuration information to the second access network device through an Xn interface.

The first access network device may also send the first RS configuration information to OAM. Thus, the OAM receives the RS at the network device that can configure the interference source region according to the first RS configuration information.

In other embodiments, the OAM may pre-configure RS configuration information to the first access network device, so that when the first access network device receives the RS configuration request of the second access network device, they may determine the first RS configuration information according to the RS configuration information pre-configured by the OAM.

Or, the first access network device may request the OAM request for the RS configuration information in advance, so that when the first access network device receives the RS configuration request of the second access network device, they may determine the first RS configuration information according to the RS configuration information configured by the OAM request.

And S904, the second access network equipment determines third RS configuration information according to the first RS configuration information.

Wherein the third RS configuration information may be identical to the first RS configuration information. Alternatively, the third RS configuration information may not be completely the same as the first RS configuration information. For example, the second access network device may determine, according to its service scheduling, a transmission time, a transmission period, and the like of the corresponding RS, that is, the third RS configuration information may be different from the transmission time, the transmission period, and the like of the first RS configuration information.

And S905, the second access network equipment sends an RS according to the third RS configuration information, wherein the RS is used for indicating that remote interference exists.

Compared with the prior art that the RS is configured by OAM, the RS transmission is stopped, the RS monitoring is triggered and stopped, and the application of the remote interference suppression solution is triggered and stopped by the manual intervention of the OAM, so that the remote interference management is not timely, and the performance of the cell in the interfered area is reduced. In the embodiment of the application, the sending of each access network device RS in the whole access network device group is coordinated through one access network device in the access network device group, so that the sending is more timely and more flexible, the configuration time can be saved, and the cell performance can be ensured.

Based on the same inventive concept as the method embodiment, the embodiment of the application provides a remote interference management device. The remote interference management apparatus may include a receiving unit 1001, a processing unit 1002, and a transmitting unit 1003, as shown in fig. 10.

In a specific embodiment, the remote interference management apparatus may be specifically configured to implement the method performed by the first network device in the embodiments described in fig. 6 to fig. 8, where the apparatus may be the first network device itself, or may be a chip or a chip set in the first network device, or a part of the chip for performing a function of the related method. The receiving unit 1001 is configured to receive data, and the transmitting unit 1003 is configured to transmit data. A processing unit 1002, configured to control the receiving unit 1001 to receive first information sent by a second network device, where the first information is used to request configuration information of a reference signal RS, where the RS is used to indicate that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device. The processing unit 1002 is further configured to control the sending unit 1003 to send the first RS configuration information to the second network device.

In an exemplary illustration, the processing unit 1002, when controlling the receiving unit 1001 to receive the first information sent by the second network device, may specifically be configured to: the control receiving unit 1001 receives an interference strength indication reported by the second network device, where the interference strength indication is used to represent a degree of remote interference to the second network device, and the interference strength indication carries the first information.

In an exemplary illustration, the processing unit 1002, when controlling the sending unit 1003 to send the first RS configuration information to the second network device, may specifically be configured to: the control sending unit 1003 sends a first message to the second network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

Wherein the first RS configuration information may include at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

Or, the first RS configuration information may also be first indication information, where the first indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

Illustratively, the processing unit 1002 may further be configured to: before the control transmitting unit 1003 transmits the first RS configuration information to the second network device, the control receiving unit 1001 receives second information transmitted by the second network device, where the second information is used to indicate RS configuration information preferentially selected by the second network device; and determining the first RS configuration information according to the second information.

Wherein the second information may be second RS configuration information, and the second RS configuration information includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

Or, the second information may also be second indication information, where the second indication information is used to indicate a resource set, and the resource set includes at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

The processing unit 1002 may further be configured to: the control transmitting unit 1003 transmits the first RS configuration information to the operation administration and maintenance OAM.

In another specific embodiment, the remote interference management apparatus may be specifically configured to implement the method performed by the second network device in the embodiments described in fig. 6 to fig. 8, and the apparatus may be the second network device itself, or may be a chip or a chip set in the second network device, or a part of a chip in the chip, which is used to perform a function of the relevant method. The sending unit 1003 is configured to send first information to a first network device, where the first information is used to request configuration information of a reference signal RS, where the RS is used to indicate that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device. A receiving unit 1001, configured to receive first reference signal RS configuration information sent by the first network device. A processing unit 1002, configured to determine second RS configuration information according to the first RS configuration information; and transmitting the RS according to the second RS configuration information.

Wherein the second RS configuration information may be the same as the first RS configuration information; alternatively, the second RS configuration information may not be identical to the first RS configuration information.

The sending unit 1003, when sending the first information to the first network device, may specifically be configured to: sending an interference strength indication to the first network device, where the interference strength indication is used to characterize a degree of remote interference to the second network device, and the interference strength indication carries the first information.

When receiving the first RS configuration information sent by the first network device, the receiving unit 1001 may specifically be configured to: receiving a first message sent by the first network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

The sending unit 1003 may further be configured to: and sending second information to the first network equipment, wherein the second information is used for indicating the RS configuration information preferentially selected by the second network equipment.

The division of the modules in the embodiments of the present application is schematic, and only one logical function division is provided, and in actual implementation, there may be another division manner, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It is understood that the functions or implementations of the respective modules in the embodiments of the present application may further refer to the related description of the method embodiments.

In a possible manner, the communication device may be as shown in fig. 11, and the communication device may be a network device or a chip in the network device. The apparatus may include a processor 1101, a communication interface 1102, and a memory 1103. The processing unit 1002 may be the processor 1101, among others. The receiving unit 1001 and the transmitting unit 1003 may be a communication interface 1102.

The processor 1101 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The communication interface 1102 may be a transceiver, an interface circuit such as a transceiver circuit, etc., a transceiver chip, etc. The device also includes: a memory 1103 for storing programs executed by the processor 1101. The memory 1103 may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory (RAM), such as a random-access memory (RAM). The memory 1103 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.

The processor 1101 is configured to execute the program code stored in the memory 1103, and is specifically configured to execute the actions of the processing unit 1002, which is not described herein again.

The communication interface 1102 is specifically configured to perform the operations of the receiving unit 1001 and the sending unit 1003, which are not described herein again.

In the embodiment of the present application, a specific connection medium among the communication interface 1102, the processor 1101, and the memory 1103 is not limited. In the embodiment of the present application, the memory 1103, the processor 1101, and the communication interface 1102 are connected by the bus 1104 in fig. 11, the bus is indicated by a thick line in fig. 11, and the connection manner between other components is only schematically illustrated and is not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 11, but this is not intended to represent only one bus or type of bus.

The embodiment of the present invention further provides a computer-readable storage medium, which is used for storing computer software instructions required to be executed for executing the processor, and which contains a program required to be executed for executing the processor.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such 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 intended to include such modifications and variations as well.

Claims

1. A method for remote interference management, the method comprising:

a first network device receives first information sent by a second network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), the RS is used for indicating that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device;

the first network equipment sends first RS configuration information to the second network equipment;

the method for receiving the first information sent by the second network equipment by the first network equipment comprises the following steps:

the first network device receives an interference strength indication reported by the second network device, wherein the interference strength indication is used for representing the degree of remote interference on the second network device, and the interference strength indication carries the first information;

the first network device sends first RS configuration information to the second network device, including:

the first network device sends a first message to the second network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

2. The method of claim 1, wherein the first RS configuration information comprises at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

3. The method of claim 1, wherein the first RS configuration information is first indication information indicating a resource set, and wherein the resource set comprises at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

4. The method of claim 1, wherein prior to the first network device sending first RS configuration information to the second network device, the method further comprises:

the first network equipment receives second information sent by the second network equipment, wherein the second information is used for indicating RS configuration information preferentially selected by the second network equipment;

and the first network equipment determines the first RS configuration information according to the second information.

5. The method of claim 4, wherein the second information is second RS configuration information, the second RS configuration information including at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

6. The method of claim 4, wherein the second information is second indication information, and the second indication information is used for indicating a resource set, and the resource set comprises at least one of the following information: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

7. The method of any of claims 1 to 6, further comprising:

and the first network equipment sends the first RS configuration information to Operation Administration and Maintenance (OAM).

8. A method for remote interference management, the method comprising:

a second network device sends first information to a first network device, wherein the first information is used for requesting configuration information of a Reference Signal (RS), the RS is used for indicating that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device;

the second network equipment receives first Reference Signal (RS) configuration information sent by the first network equipment;

the second network equipment determines second RS configuration information according to the first RS configuration information;

the second network equipment sends an RS according to the second RS configuration information;

the second network equipment sends first information to the first network equipment, and the first information comprises the following steps:

the second network equipment sends an interference strength indication to the first network equipment, wherein the interference strength indication is used for representing the degree of remote interference on the second network equipment, and the interference strength indication carries the first information;

the second network device receiving the first RS configuration information sent by the first network device, including:

the second network device receives a first message sent by the first network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

9. The method of claim 8, wherein the second RS configuration information is the same as the first RS configuration information; or the second RS configuration information is not identical to the first RS configuration information.

10. The method of claim 8 or 9, wherein the method further comprises:

and the second network equipment sends second information to the first network equipment, wherein the second information is used for indicating the RS configuration information preferentially selected by the second network equipment.

11. A communication apparatus, the apparatus being applied to a first network device, the apparatus comprising a processor and a transceiver;

the transceiver is used for transceiving data;

the processor is configured to control the transceiver to receive first information sent by a second network device, where the first information is used to request configuration information of a reference signal RS, where the RS is used to indicate that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device; and controlling the transceiver to transmit first RS configuration information to the second network device;

the processor, when controlling the transceiver to receive the first information sent by the second network device, is specifically configured to:

controlling the transceiver to receive an interference strength indication reported by the second network device, where the interference strength indication is used to represent a degree of remote interference to the second network device, and the interference strength indication carries the first information;

the processor, when controlling the transceiver to send the first RS configuration information to the second network device, is specifically configured to:

controlling the transceiver to send a first message to the second network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

12. The apparatus of claim 11, wherein the first RS configuration information comprises at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

13. The apparatus of claim 11, wherein the first RS configuration information is first indication information indicating a resource set, the resource set comprising at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

14. The apparatus of claim 11, wherein the processor is further configured to:

before controlling the transceiver to send first RS configuration information to the second network device, controlling the transceiver to receive second information sent by the second network device, where the second information is used to indicate RS configuration information preferentially selected by the second network device;

and determining the first RS configuration information according to the second information.

15. The apparatus of claim 14, wherein the second information is second RS configuration information, the second RS configuration information comprising at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

16. The apparatus of claim 14, wherein the second information is second indication information indicating a resource set, the resource set comprising at least one of: the sending time of the RS, the sending period of the RS, the frequency points occupied by the RS, the bandwidth of the RS and the sequence of the RS.

17. The apparatus of any of claims 11 to 16, wherein the processor is further configured to:

and controlling the transceiver to send the first RS configuration information to Operation Administration and Maintenance (OAM).

18. A communication apparatus, wherein the apparatus is applied to a second network device, the apparatus comprising:

a transceiver, configured to send first information to a first network device, where the first information is used to request configuration information of a reference signal RS, where the RS is used to indicate that remote interference exists, the first network device is a centralized unit, and the second network device is a distributed unit; or, the first network device is a core network device, and the second network device is an access network device; receiving first Reference Signal (RS) configuration information sent by the first network equipment;

the processor is used for determining second RS configuration information according to the first RS configuration information; and transmitting the RS according to the second RS configuration information;

the transceiver, when sending the first information to the first network device, is specifically configured to:

sending an interference strength indication to the first network device, wherein the interference strength indication is used for representing the degree of remote interference on the second network device, and the interference strength indication carries the first information;

the transceiver, when receiving the first RS configuration information sent by the first network device, is specifically configured to:

receiving a first message sent by the first network device, where the first message carries a group identifier and the first RS configuration information, where the group identifier is used to indicate a group to which the second network device belongs, and the group is determined by the first network device according to an interference strength indication reported by the second network device.

19. The apparatus of claim 18, wherein the second RS configuration information is the same as the first RS configuration information; or the second RS configuration information is not identical to the first RS configuration information.

20. The apparatus of claim 18 or 19, wherein the transceiver is further configured to:

and sending second information to the first network equipment, wherein the second information is used for indicating the RS configuration information preferentially selected by the second network equipment.

21. A computer-readable storage medium, in which a program or instructions are stored, which when read and executed by one or more processors, implement the method of any one of claims 1 to 7; alternatively, the program or the instructions, when read and executed by one or more processors, may implement the method of any one of claims 8 to 10.