CN115002860B

CN115002860B - Interference coordination method, device and storage medium

Info

Publication number: CN115002860B
Application number: CN202210648759.5A
Authority: CN
Inventors: 吕婷; 李福昌; 张涛
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2023-09-05
Anticipated expiration: 2042-06-09
Also published as: CN115002860A

Abstract

The application provides an interference coordination method, an interference coordination device and a storage medium, relates to the field of communication, and can solve the problem that the service requirements of users cannot be met in the related technology. The method comprises the following steps: acquiring a first scrambling cell causing interference to a target cell; the target cell is any cell in a preset area; the first scrambling cell is a cell causing interference to the target cell; acquiring a compensation cell corresponding to each first scrambling cell; overlapping wireless signal coverage areas exist between the compensation cell and the corresponding first scrambling cell; determining a second scrambling cell from the first scrambling cell; the second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell; indicating one or more User Equipment (UE) in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell; and instructing the second scrambling cell to perform the interference coordination operation. The application can ensure the normal service requirement of the user in the interference coordination process.

Description

Interference coordination method, device and storage medium

Technical Field

The present application relates to the field of communications, and in particular, to an interference coordination method, apparatus, and storage medium.

Background

With the development of mobile communication networks, spectrum resources are becoming more and more scarce. In order to improve the spectrum resource utilization rate, spectrum resources need to be shared among different network systems. However, when cells of different network systems use the same spectrum resource for data transmission, signal interference between cells is easy to occur.

In the related art, the spectrum resources of the cells generating the signal interference are scheduled, so that the spectrum resources used among the cells are not overlapped on the frequency domain, thereby avoiding the signal interference.

Disclosure of Invention

The application provides an interference coordination method, an interference coordination device and a storage medium, which can ensure the normal service demands of users in the interference coordination process.

In order to achieve the above purpose, the application adopts the following technical scheme:

in a first aspect, the present application provides an interference coordination method, which includes: acquiring a first scrambling cell causing interference to a target cell; the target cell is any cell in a preset area; the first scrambling cell is a cell causing interference to the target cell; acquiring a compensation cell corresponding to each first scrambling cell; overlapping wireless signal coverage areas exist between the compensation cell and the corresponding first scrambling cell; determining a second scrambling cell from the first scrambling cell; the second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell; indicating one or more User Equipment (UE) in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell; and instructing the second scrambling cell to perform the interference coordination operation.

Based on the technical scheme, the interference coordination device determines a second interference cell to be subjected to interference coordination from the first interference cell by acquiring the first interference cell causing interference to the target cell in the preset area and the compensation cell corresponding to the first interference cell. Before instructing the second scrambling cell to perform the interference coordination operation, the interference coordination device may instruct one or more UEs in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell. In this way, in the interference coordination executing process, the technical scheme of the application can not only avoid the signal interference of the target cell and improve the network performance of the target cell, but also prevent the accessed UE from being unable to normally perform data transmission due to the reduction of the available spectrum resources when the second interference applying cell executes the interference coordination operation, thereby guaranteeing the service requirement of the user.

With reference to the first aspect, in one possible implementation manner, the method further includes: taking a cell meeting a first preset condition in the first scrambling cell as a second scrambling cell; the first preset condition includes at least one of: each network system supported by the first target UE is included in the compensation network system set, each working frequency band supported by the first target UE is included in the compensation working frequency band set, and the compensation available capacity is larger than or equal to the traffic of the first scrambling cell; the first target UE is the UE in the first scrambling cell; the compensation network system set comprises a corresponding network system supported by each compensation cell; the compensation working frequency band set comprises corresponding working frequency bands supported by each compensation cell; the compensation available capacity is the sum of the available capacities of each corresponding compensation cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: determining first capability information of a target scrambling cell for each target scrambling cell; the target scrambling cell is any one cell in the first scrambling cell; the first capability information comprises network type and working frequency band supported by each UE in a target scrambling cell and traffic of the target scrambling cell; determining second capability information of the target compensation cell for each target compensation cell; the target compensation cell is any cell in the compensation cells corresponding to the target scrambling cell; the second capability information includes a set of compensated network modes, a set of compensated operating frequency bands, and a compensated available capacity.

With reference to the first aspect, in one possible implementation manner, the method further includes: transmitting a first capability request message to a target scrambling cell; the first capability request message is used for indicating the target scrambling cell to acquire first capability information; receiving a first capacity response message sent by a target scrambling cell; the first capability response message includes first capability information of the target interfering cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: sending a second capability request message to the target compensation cell; the second capability request message is used for indicating the target compensation cell to acquire second capability information; receiving a second capacity response message sent by the target compensation cell; the second capability response message includes second capability information of the target offset cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: acquiring configuration information of each cell in a preset area; the configuration information comprises at least one of a cell identifier, a working frequency band currently configured by the cell and a network system supported by the cell; taking a cell meeting a second preset condition in each cell in the preset area as a preset cell; the second preset condition includes: overlapping frequency bands exist between a working frequency band currently configured in a cell and a preset frequency band; and determining a target cell according to the network system supported by the preset cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: respectively sending configuration request information to each cell in a preset area; the configuration request message is used for acquiring the configuration information of the cell; receiving a configuration response message sent by a cell in a preset area; the configuration response message includes configuration information of the cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: determining the priority corresponding to the preset cell according to the network system supported by the preset cell; and determining the target cell according to the priority corresponding to the preset cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: responding to the preset cells including a cell with the highest priority, and determining the target cell as the cell with the highest priority; responding to a preset cell comprising a plurality of cells with highest priority, and acquiring service parameters of the cells with the highest priority; the service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period; the traffic factor is used for representing the size of traffic carried by the cell; the performance factor of the cell is used for representing the importance degree of the business carried by the cell; and determining the target cell according to the service parameters of the cells with the highest priorities.

With reference to the first aspect, in one possible implementation manner, the method further includes: respectively sending service parameter request messages to a plurality of cells with highest priorities; the service parameter request message is used for acquiring the service parameters of the cell; receiving service parameter response messages sent by a plurality of cells with highest priorities; the service parameter response message includes the service parameters of the cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: the business volume factor and the performance factor of each cell in the cells with the highest priority are weighted and summed to obtain a plurality of weights; the cells with the highest priorities are in one-to-one correspondence with the weights; and taking a cell corresponding to the highest weight in the plurality of weights as a target cell.

With reference to the first aspect, in one possible implementation manner, the method further includes: transmitting an interference detection message to a target cell; the interference detection message is used for indicating the target cell to determine a first interference application cell meeting a third preset condition; the third preset condition includes: the signal strength of an interference signal sent by a first interference applying cell received on a target sub-band is larger than a preset interference threshold, and the network system of the first interference applying cell is different from the network system of the target cell; the target sub-frequency band is any one of the working frequency bands of the target cell; receiving an interference response message sent by a target cell; the interference response message includes a cell identification of the first interfering cell.

With reference to the first aspect, in a possible implementation manner, the interference response message further includes an interference sub-band of each first scrambling cell; the interference sub-band is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

With reference to the first aspect, in one possible implementation manner, the method further includes: transmitting an interference measurement message to a target cell; the interference measurement message is used for indicating the target cell to determine the interference parameter of the target cell; the interference parameter includes at least one of a signal strength of an interference signal received on each sub-band in the operating band, a cell identification of a cell transmitting the interference signal, and a network system of the cell transmitting the interference signal.

With reference to the first aspect, in one possible implementation manner, the method further includes: respectively sending a first indication message to each first scrambling cell; the first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition; the fourth preset condition includes: the difference value between the signal intensity average value of the first scrambling cell measured by the UE in the first scrambling cell and the signal intensity average value of the measured candidate compensation cell is smaller than a first preset difference value; the first scrambling cell corresponds to one or more candidate compensation cells; receiving a first response message sent by a first scrambling cell; the first response message comprises cell identifiers of candidate compensation cells corresponding to the first scrambling cell; respectively sending a second indication message to each candidate compensation cell; the second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met; the fifth preset condition includes: the difference value between the signal intensity average value of the candidate compensation cell measured by the UE in the candidate compensation cell and the signal intensity average value of the measured first scrambling cell is smaller than a second preset difference value; receiving a second response message sent by the candidate compensation cell; the second response message comprises cell identifiers of candidate compensation cells meeting a fifth preset condition; and determining the compensation cell corresponding to each first scrambling cell as a candidate compensation cell meeting a fifth preset condition.

With reference to the first aspect, in one possible implementation manner, the method further includes: respectively sending a migration trigger message to each second scrambling cell; the migration triggering message is used for indicating the second scrambling cell to switch the second target UE to the first compensation cell; the second target UE is the first N UEs in the second scrambling cell after the UEs are ordered from high to low according to the target signal strength; the target signal strength is the signal strength with the largest signal strength value of a plurality of compensation cells measured by any UE in the second scrambling cell; n is a positive integer.

With reference to the first aspect, in one possible implementation manner, a ratio of the number of the second target UEs to the number of UEs in the second scrambling cell is equal to a bandwidth ratio of an interference sub-band to an operating band of the second scrambling cell.

With reference to the first aspect, in one possible implementation manner, when a cell that satisfies a sixth preset condition is included in the compensation cell corresponding to the second scrambling cell, the first compensation cell is a cell that satisfies the sixth preset condition; the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE; when the compensating cells corresponding to the second scrambling cell comprise a plurality of cells meeting a sixth preset condition, the first compensating cell is the cell with the largest compensating available capacity in the plurality of cells meeting the sixth preset condition.

With reference to the first aspect, in one possible implementation manner, the method further includes: transmitting an interference coordination message to each second interference application cell respectively; the interference coordination message is used to instruct the second interfering cell to stop data transmission on the corresponding interfering sub-band.

In a second aspect, the present application provides an interference coordination device, comprising: a communication unit and a processing unit; a communication unit, configured to acquire a first scrambling cell that causes interference to a target cell; the target cell is any cell in a preset area; the first scrambling cell is a cell causing interference to the target cell; the communication unit is also used for acquiring a compensation cell corresponding to each first scrambling cell; overlapping wireless signal coverage areas exist between the compensation cell and the corresponding first scrambling cell; a processing unit, configured to determine a second scrambling cell from the first scrambling cells; the second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell; the communication unit is further used for indicating one or more User Equipment (UE) in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell; and the communication unit is also used for indicating the second scrambling cell to execute the interference coordination operation.

With reference to the second aspect, in one possible implementation manner, the processing unit is configured to: taking a cell meeting a first preset condition in the first scrambling cell as a second scrambling cell; the first preset condition includes at least one of: each network system supported by the first target UE is included in the compensation network system set, each working frequency band supported by the first target UE is included in the compensation working frequency band set, and the compensation available capacity is larger than or equal to the traffic of the first scrambling cell; the first target UE is the UE in the first scrambling cell; the compensation network system set comprises a corresponding network system supported by each compensation cell; the compensation working frequency band set comprises corresponding working frequency bands supported by each compensation cell; the compensation available capacity is the sum of the available capacities of each corresponding compensation cell.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: determining first capability information of a target scrambling cell for each target scrambling cell; the target scrambling cell is any one cell in the first scrambling cell; the first capability information comprises network type, working frequency band and traffic of the target scrambling cell supported by each UE in the target scrambling cell; determining second capability information of the target compensation cell for each target compensation cell; the target compensation cell is any cell in the compensation cells corresponding to the target scrambling cell; the second capability information includes a set of compensated network modes, a set of compensated operating frequency bands, and a compensated available capacity.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: transmitting a first capability request message to a target scrambling cell; the first capability request message is used for indicating the target scrambling cell to acquire first capability information; receiving a first capacity response message sent by a target scrambling cell; the first capability response message includes first capability information of the target interfering cell.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: sending a second capability request message to the target compensation cell; the second capability request message is used for indicating the target compensation cell to acquire second capability information; receiving a second capacity response message sent by the target compensation cell; the second capability response message includes second capability information of the target offset cell.

With reference to the second aspect, in one possible implementation manner, the communication unit is further configured to obtain configuration information of each cell in the preset area; the configuration information comprises at least one of a cell identifier, a working frequency band currently configured by the cell and a network system supported by the cell; the processing unit is further used for taking a cell meeting a second preset condition in each cell in the preset area as a preset cell; the second preset condition includes: overlapping frequency bands exist between a working frequency band currently configured in a cell and a preset frequency band; and the processing unit is also used for determining a target cell according to a network system supported by the preset cell.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: respectively sending configuration request information to each cell in a preset area; the configuration request message is used for acquiring the configuration information of the cell; receiving a configuration response message sent by a cell in a preset area; the configuration response message includes configuration information of the cell.

With reference to the second aspect, in one possible implementation manner, the processing unit is configured to: determining the priority corresponding to the preset cell according to the network system supported by the preset cell; and determining the target cell according to the priority corresponding to the preset cell.

With reference to the second aspect, in a possible implementation manner, the processing unit is further configured to: responding to the preset cells including a cell with the highest priority, and determining the target cell as the cell with the highest priority; the communication unit is further used for: responding to a preset cell comprising a plurality of cells with highest priority, and acquiring service parameters of the cells with the highest priority; the service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period; the traffic factor is used for representing the size of traffic carried by the cell; the performance factor of the cell is used for representing the importance degree of the business carried by the cell; and the processing unit is also used for determining the target cell according to the service parameters of the cells with the highest priorities.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: respectively sending service parameter request messages to a plurality of cells with highest priorities; the service parameter request message is used for acquiring the service parameters of the cell; receiving service parameter response messages sent by a plurality of cells with highest priorities; the service parameter response message includes the service parameters of the cell.

With reference to the second aspect, in one possible implementation manner, the processing unit is configured to: the business volume factor and the performance factor of each cell in the cells with the highest priority are weighted and summed to obtain a plurality of weights; the cells with the highest priorities are in one-to-one correspondence with the weights; and taking a cell corresponding to the highest weight in the plurality of weights as a target cell.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: transmitting an interference detection message to a target cell; the interference detection message is used for indicating the target cell to determine a first interference application cell meeting a third preset condition; the third preset condition includes: the signal strength of an interference signal sent by a first interference applying cell received on a target sub-band is larger than a preset interference threshold, and the network system of the first interference applying cell is different from the network system of the target cell; the target sub-frequency band is any one of the working frequency bands of the target cell; receiving an interference response message sent by a target cell; the interference response message includes a cell identification of the first interfering cell.

With reference to the second aspect, in one possible implementation manner, the interference response message further includes an interference sub-band of each first scrambling cell; the interference sub-band is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: transmitting an interference measurement message to a target cell; the interference measurement message is used for indicating the target cell to determine the interference parameter of the target cell; the interference parameter includes at least one of a signal strength of an interference signal received on each sub-band in the operating band, a cell identification of a cell transmitting the interference signal, and a network system of the cell transmitting the interference signal.

With reference to the second aspect, in a possible implementation manner, the communication unit is further configured to send a first indication message to each first scrambling cell separately; the first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition; the fourth preset condition includes: the difference value between the signal intensity average value of the first scrambling cell measured by the UE in the first scrambling cell and the signal intensity average value of the measured candidate compensation cell is smaller than a first preset difference value; the first scrambling cell corresponds to one or more candidate compensation cells; the communication unit is also used for receiving a first response message sent by the first scrambling cell; the first response message comprises cell identifiers of candidate compensation cells corresponding to the first scrambling cell; the communication unit is further used for respectively sending a second indication message to each candidate compensation cell; the second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met; the fifth preset condition includes: the difference value between the signal intensity average value of the candidate compensation cell measured by the UE in the candidate compensation cell and the signal intensity average value of the measured first scrambling cell is smaller than a second preset difference value; the communication unit is also used for receiving a second response message sent by the candidate compensation cell; the second response message comprises cell identifiers of candidate compensation cells meeting a fifth preset condition; the processing unit is further configured to determine that the compensation cell corresponding to each first scrambling cell is a candidate compensation cell that satisfies a fifth preset condition.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: respectively sending a migration trigger message to each second scrambling cell; the migration triggering message is used for indicating the second scrambling cell to switch the second target UE to the first compensation cell; the second target UE is the first N UEs in the second scrambling cell after the UEs are ordered from high to low according to the target signal strength; the target signal strength is the signal strength with the largest signal strength value of a plurality of compensation cells measured by any UE in the second scrambling cell; n is a positive integer.

With reference to the second aspect, in one possible implementation manner, a ratio of the number of the second target UEs to the number of UEs in the second scrambling cell is equal to a bandwidth ratio of an interference sub-band to an operating band of the second scrambling cell.

With reference to the second aspect, in one possible implementation manner, when a cell that satisfies a sixth preset condition is included in the compensation cell corresponding to the second scrambling cell, the first compensation cell is a cell that satisfies the sixth preset condition; the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE; when the compensating cells corresponding to the second scrambling cell comprise a plurality of cells meeting a sixth preset condition, the first compensating cell is the cell with the largest compensating available capacity in the plurality of cells meeting the sixth preset condition.

With reference to the second aspect, in one possible implementation manner, the communication unit is configured to: transmitting an interference coordination message to each second interference application cell respectively; the interference coordination message is used to instruct the second interfering cell to stop data transmission on the corresponding interfering sub-band.

In a third aspect, the present application provides an interference coordination device, comprising: a processor and a communication interface; the communication interface is coupled to a processor for running a computer program or instructions to implement the interference coordination method as described in any one of the possible implementations of the first aspect and the first aspect.

In a fourth aspect, the present application provides a computer readable storage medium having instructions stored therein which, when run on a terminal, cause the terminal to perform an interference coordination method as described in any one of the possible implementations of the first aspect and the first aspect.

In a fifth aspect, the application provides a computer program product comprising instructions which, when run on an interference coordination device, cause the interference coordination device to perform the interference coordination method as described in any one of the possible implementations of the first aspect and the first aspect.

In a sixth aspect, the present application provides a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a computer program or instructions to implement the interference coordination method as described in any one of the possible implementations of the first aspect and the first aspect.

In particular, the chip provided in the present application further includes a memory for storing a computer program or instructions.

It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged together with the processor of the apparatus or may be packaged separately from the processor of the apparatus, which is not limited in this respect.

In a seventh aspect, the present application provides an interference coordination system, comprising: an interference coordination device and a plurality of cells, wherein the interference coordination device is configured to perform the interference coordination method as described in any one of the possible implementations of the first aspect and the first aspect.

The description of the second to seventh aspects of the present application may refer to the detailed description of the first aspect; also, the advantageous effects described in the second aspect to the seventh aspect may refer to the advantageous effect analysis of the first aspect, and are not described herein.

In the present application, the names of the above-mentioned interference coordination means do not constitute limitations on the devices or function modules themselves, and in actual implementation, these devices or function modules may appear under other names. Insofar as the function of each device or function module is similar to that of the present application, it falls within the scope of the claims of the present application and the equivalents thereof.

These and other aspects of the application will be more readily apparent from the following description.

Drawings

Fig. 1 is a schematic diagram of an interference coordination system according to an embodiment of the present application;

fig. 2 is a flowchart of an interference coordination method according to an embodiment of the present application;

fig. 3 is a flowchart of another interference coordination method according to an embodiment of the present application;

fig. 4 is a flowchart of another interference coordination method according to an embodiment of the present application;

fig. 5 is a flowchart of another interference coordination method according to an embodiment of the present application;

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

fig. 7 is a schematic structural diagram of an interference coordination device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another interference coordination device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or between different processes of the same object and not for describing a particular order of objects.

Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.

In view of the above, the present application provides an interference coordination method, in which an interference coordination device obtains a first interference applying cell that causes interference to a target cell in a preset area, and a compensating cell corresponding to the first interference applying cell, and determines a second interference applying cell to be subjected to interference coordination from the first interference applying cell. Before instructing the second scrambling cell to perform interference coordination, the interference coordination apparatus instructs one or more User Equipments (UEs) in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell. In this way, when the second interference giving cell performs interference coordination, the target cell can be prevented from being interfered by signals, so that the network performance of the target cell is improved, and meanwhile, the second interference giving cell can still meet the data transmission of the UE, and the service requirement of the user is ensured.

The following describes embodiments of the present application in detail with reference to the drawings.

Fig. 1 is a block diagram of an interference coordination system 10 according to an embodiment of the present application. As shown in fig. 1, the interference coordination system 10 includes: an interference coordination means 101, at least one access network device 102 in a preset area, and at least one UE103.

Wherein the interference coordination means 101 are respectively connected with at least one access network device 102 through a communication link, and the at least one access network device 102 is connected with UEs 103 in a configured cell 104 (cell) through a communication link. The communication link may be a wired communication link or a wireless communication link, which is not limited in this regard by the present application.

It should be noted that each access network device 102 is configured with one or more cells 104. The UE103 in the cell 104 performs network communication by accessing the access network device 102 corresponding to the cell. The at least one access network device 102 may be configured with a variety of network formats.

By way of example, the access network device 102 of embodiments of the present application may be configured in a variety of network formats, such as: code division multiple access (code division multiple access, CDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (SC-FDMA), and other network schemes, and the like. The term "network-based" may be used interchangeably with "communication system". The CDMA network may implement wireless technologies such as universal wireless terrestrial access (universal terrestrial radio access, UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the transition standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards. TDMA networks may implement wireless technologies such as the global system for mobile communications (global system for mobile communication, GSM). The OFDMA network may implement wireless technologies such as evolved universal wireless terrestrial access (E-UTRA), ultra mobile broadband (ultra mobile broadband, UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, flash OFDMA, and the like. UTRA and E-UTRA are UMTS and UMTS evolution versions. Various versions of 3GPP in long term evolution (long term evolution, LTE) and LTE-based evolution are new versions of UMTS that use E-UTRA. The 5G communication network, new Radio (NR), is the next generation communication network under investigation. In addition, the communication network can be also suitable for future communication technology, and the technical scheme provided by the embodiment of the application is applicable.

The interference coordination device 101 may be a stand-alone communication device, such as a server. The interference coordination means 101 may also be a functional module in a maintenance platform for a core network device or a communication device coupled to the access network device 102, the communication system.

For example, the interference coordination apparatus 101 includes:

the processor may be a general purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the programs of the present application.

The transceiver may be a device using any transceiver or the like for communicating with other devices or communication networks, such as ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), etc.

Memory, which may be, but is not limited to, read-only memory (ROM) or other type of static storage device that may store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, but may also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory (compact disc read-only memory) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or 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. The memory may be stand alone and be coupled to the processor via a communication line. The memory may also be integrated with the processor.

The access network device 102 is a device located at the access network side of the communication system and having a wireless transceiving function or a chip system that can be provided in the device. Access network devices 102 include, but are not limited to: an Access Point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved NodeB (eNB), a radio network controller (radio network controller, RNC), a NodeB (NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a Base Band Unit (BBU), a radio relay node, a radio backhaul node, a transmission point (transmission and reception point, TRP, transmission point, TP), etc., may also be a 5G base station, such as a gNB in a new air interface (new radio, NR) system, or a transmission point (TRP, TP), an antenna panel or a group of base stations in a 5G system (including multiple antenna panels), or may also be a network node constituting a gNB or a transmission point, such as a Base Band Unit (BBU), or a distributed unit (distributed unit), a base station having a roadside unit (RSU), an access network (RSU), a base station-side unit (RSU), or a service node (RSU), etc. The access network device 102 also includes base stations in different networking modes, such as a master enhanced NodeB (MeNB), a secondary eNB (SeNB), or a secondary gNB (SgNB). The access network equipment 102 also includes different types, such as ground base stations, air base stations, satellite base stations, and the like.

UE103, a device with wireless communication capabilities, may be deployed on land, including indoors or outdoors, hand held or vehicle mounted. Can also be deployed on the water surface (such as a ship, etc.). But may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The UE103, also called a Mobile Station (MS), a Mobile Terminal (MT), a terminal device, etc., is a device that provides voice and/or data connectivity to a user. For example, the UE103 includes a handheld device, an in-vehicle device, and the like having a wireless connection function. Currently, the UE103 may be: a mobile phone, a tablet, a laptop, a palmtop, a mobile internet device (mobile internet device, MID), a wearable device (e.g., a smartwatch, a smartband, a pedometer, etc.), a vehicle-mounted device (e.g., an automobile, a bicycle, an electric car, an airplane, a ship, a train, a high-speed rail, etc.), a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in an industrial control (industrial control), a smart home device (e.g., a refrigerator, a television, an air conditioner, an electric meter, etc.), a smart robot, a workshop device, a wireless terminal in a drone (self driving), a wireless terminal in a teleoperation (remote medical surgery), a wireless terminal in a smart grid (smart grid), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city (smart city), or a wireless terminal in a smart home (smart home), a flying device (e.g., a smart robot, a hot balloon, an airplane, etc.

The interference coordination means 101 is configured to obtain a first interfering cell that causes interference to a target cell.

The target cell is any cell 104 in a preset area, and the first scrambling cell is a cell that causes interference to the target cell.

In a possible implementation manner, the interference coordination device 101 sends an interference detection message to the target cell, and accordingly, the target cell receives the interference detection message sent by the interference coordination device 101.

The target cell is configured to determine a first interfering cell, and send an interference response message to the interference coordination device 101, and accordingly, the interference coordination device 101 receives the interference response message sent by the target cell.

Wherein the interference response message includes a cell identity of the first interfering cell.

It should be noted that, since the access network device 102 may configure one or more cells 104, in order to distinguish between different cells in a preset area, the communication between the interference coordination device 101 and the access network device 102 where the cell 104 in the preset area is located is expressed as the communication between the interference coordination device 101 and the cell 104 in the present application.

The interference coordination device 101 is further configured to obtain a compensation cell corresponding to each first scrambling cell.

Wherein, there is overlapping wireless signal coverage area between the compensation cell and the corresponding first scrambling cell. One first scrambling cell may correspond to one or more compensating cells.

It should be noted that, because of the overlapping wireless signal coverage area between the compensating cell and the corresponding first scrambling cell, the UE103 in the first scrambling cell is less affected by network communication after being switched from the first scrambling cell to the corresponding compensating cell.

The interference coordination means 101 is also arranged to determine a second scrambling cell from the first scrambling cells.

The second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell.

The interference coordination device 101 is further configured to instruct one or more UEs in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell.

In a possible implementation manner, the interference coordination device 101 sends a migration trigger message to each second scrambling cell, and the corresponding second scrambling cell receives the migration trigger message sent by the interference coordination device 101.

The second scrambling cell is configured to switch one or more UEs in the second scrambling cell to corresponding compensating cells in response to the migration trigger message.

The interference coordination means 101 is further configured to instruct the second interfering cell to perform an interference coordination operation.

In a possible implementation manner, the interference coordination device 101 sends an interference coordination message to each second scrambling cell, and the corresponding second scrambling cell receives the interference coordination message sent by the interference coordination device 101.

The second scrambling cell is configured to perform an interference coordination operation in response to the interference coordination message.

Illustratively, the second interfering cell stops data transmission on the corresponding interfering sub-band. The interference sub-band is a sub-band in which the second interfering cell causes interference to the target cell.

In the application, the interference coordination device 101 instructs one or more UEs in the second interference application cell to switch to the compensation cell corresponding to the second interference application cell before instructing the second interference application cell to execute interference coordination operation, so as to avoid the problem that the UEs connected to the second interference application cell cannot perform normal data transmission in the interference coordination execution process of the second interference application cell, and ensure the service requirements of users.

It should be noted that, the embodiments of the present application may refer to or refer to each other, for example, the same or similar steps, and the method embodiment, the system embodiment and the device embodiment may refer to each other, which is not limited.

Fig. 2 is a flowchart of an interference coordination method according to an embodiment of the present application. As shown in fig. 2, the method comprises the steps of:

step 201, an interference coordination device acquires a first scrambling cell causing interference to a target cell.

The target cell is any cell in a preset area, and the first scrambling cell is a cell which causes interference to the target cell. The range of the preset area can be set according to practical situations, and the application is not limited to this.

In a possible implementation manner, the interference coordination device sends an interference detection message to the target cell, and correspondingly, the target cell receives the interference detection message sent by the interference coordination device.

The target cell determines a first scrambling cell, and sends an interference response message to the interference coordination device, and correspondingly, the interference coordination device receives the interference response message sent by the target cell.

For example, the target cell may determine the first interfering cell that causes interference according to the interference situation suffered by each sub-band in the operating band.

Step 202, the interference coordination device acquires a compensation cell corresponding to each first interference application cell.

In a possible implementation manner, for each first scrambling cell, the interference coordination device may determine a candidate compensation cell corresponding to the first scrambling cell according to a measurement report of the UE in the first scrambling cell, and determine a compensation cell corresponding to the first scrambling cell according to a measurement report of the UE in the candidate compensation cell.

The measurement report comprises the signal intensity of an accessed cell measured by the UE and the signal intensity of a neighboring cell in a preset area.

The signal strength may be, for example, a signal strength of an existing reference signal (reference signal), such as a cell-specific reference signal (CRS), a channel state reference signal (channel state information reference signal, CSI-RS), a demodulation reference signal (demodulation reference signal, DMRS), or the like, or a signal strength of a reference signal newly introduced in the future.

Step 203, the interference coordination device determines a second interference cell from the first interference cells.

In one possible implementation manner, the interference coordination device uses a cell meeting a first preset condition in the first scrambling cell as the second scrambling cell.

Wherein the first preset condition includes at least one of: the compensation network system set comprises each network system supported by the first target UE, the compensation working frequency band set comprises each working frequency band supported by the first target UE, and the compensation available capacity is larger than or equal to the traffic of the first scrambling cell.

It should be noted that, the first target UE is a UE in the first scrambling cell, the compensating network system set includes a network system supported by each corresponding compensating cell, the compensating working frequency band set includes a working frequency band supported by each corresponding compensating cell, and the compensating available capacity is a sum of available capacities of each corresponding compensating cell.

The available capacity of the compensating cell may be a difference between a maximum traffic supported by the compensating cell and an average traffic of the compensating cell in a preset period.

The interference coordination device determines the second interference coordination cell to be executed from the first interference coordination cell based on the information of network configuration, traffic and the like supported by the UE in the first interference coordination cell and the corresponding compensation cell, so that one or more UEs in the second interference coordination cell can be smoothly migrated to the corresponding compensation cell in the process of executing interference coordination in the follow-up process, and the service requirements of all UEs in the second interference coordination cell can be met.

The first scrambling cell includes UE1 and UE2, where the network system supported by UE1 includes {3g,4g }, and the supported operating frequency band includes { band1, band3}. The network system supported by UE2 includes {4G }, and the supported operating band includes { band2}. The compensation cells corresponding to the first scrambling cell include a cell 1 and a cell 2. The network system supported by the cell 1 comprises {3G }, and the working frequency band supported by the cell 1 comprises { band1}. The network system supported by cell 2 includes {4G }, and the operating band supported by cell 2 includes { band3}. The set of compensating network formats includes {3G,4G }, and the set of compensating operating frequency bands includes { band1, band3}. Therefore, the compensating network system set includes each network system supported by the UE1 and the UE2, and the compensating working frequency band set includes each working frequency band supported by the UE1 and does not include the working frequency band supported by the UE 2.

In a possible implementation manner, before step 203, the interference coordination device may further determine, for each target interfering cell, first capability information of the target interfering cell, and, for each target compensating cell, second capability information of the target compensating cell.

The first capability information comprises network system, working frequency band and business volume of each UE in the target scrambling cell; the second capability information includes a set of compensated network modes, a set of compensated operating frequency bands, and a compensated available capacity.

For example, the interference coordination device may send a first capability request message to the target scrambling cell, and the interference coordination device receives a first capability response message sent by the target scrambling cell.

The first capability request message is used for indicating the target scrambling cell to acquire first capability information; the first capability response message includes first capability information of the target interfering cell.

The interference coordination device may send a second capability request message to the target compensation cell, and the interference coordination device receives a second capability response message sent by the target compensation cell.

The second capability request message is used for indicating the target compensation cell to acquire second capability information; the second capability response message includes second capability information of the target offset cell.

In step 204, the interference coordination device instructs one or more UEs in the second scrambling cell to switch to the compensating cell corresponding to the second scrambling cell.

In one possible implementation manner, the interference coordination device sends a migration trigger message to each second interference application cell, and the corresponding second interference application cell receives the migration trigger message sent by the interference coordination device and instructs one or more UEs in the second interference application cell to switch to the corresponding compensation cell.

The migration trigger message may include an interference sub-band of the second scrambling cell, a cell identifier of a compensation cell corresponding to the second scrambling cell, and a network system, a working band and an available capacity supported by the compensation cell.

It should be noted that, each UE may determine the compensating cell to be migrated according to the measured signal strengths of the compensating cells, so that the UE may still maintain good data transmission quality after migration.

Step 205, the interference coordination device instructs the second interfering cell to perform an interference coordination operation.

In a possible implementation manner, the interference coordination device sends an interference coordination message to each second scrambling cell separately. Correspondingly, the second scrambling cell receives the interference coordination message sent by the interference coordination device. The second scrambling cell stops data transmission on the corresponding interfering sub-band in response to the interference coordination message.

The interference coordination message is used for indicating the second scrambling cell to stop data transmission on the corresponding interference sub-band. The interference coordination message may include an interference sub-band of the second interfering cell, and a network format supported by the target cell.

In one possible implementation, when the interference sub-band of the second scrambling cell is a partial sub-band in the operating band of the second scrambling cell, the second scrambling cell may set the interference sub-band as a silence band. I.e. the second scrambling cell stops data transmission on the interfering sub-band.

When the interference sub-band of the second scrambling cell is all the sub-bands in the working band of the second scrambling cell, the second scrambling cell may set the working band as a silence band. That is, the second scrambling cell is configured in an off state, and data transmission of the second scrambling cell is stopped.

Optionally, when the access network device where the second scrambling cell is located is configured with other co-located cells that are the same as the network system supported by the target cell, the access network device may allocate the spectrum resource of the second scrambling cell to the co-located cells. By distributing the spectrum resource of the second scrambling cell to other cells of the same system, the technical scheme of the application can further improve the utilization rate of the spectrum resource while reducing the signal interference of the target cell.

Hereinafter, a procedure for determining a target cell within a preset area by an interference coordination device will be described.

As a possible embodiment of the present application, as shown in fig. 3 in conjunction with fig. 2, the method further comprises the following steps 301-303 before the above step 201.

Step 301, the interference coordination device acquires configuration information of each cell in a preset area.

The configuration information comprises at least one of a cell identifier, a working frequency band currently configured by the cell and a network system supported by the cell.

In a possible implementation manner, the interference coordination device sends a configuration request message to each cell in the preset area respectively. Correspondingly, the cells in the preset area receive the configuration request message sent by the interference coordination device.

The cell in the preset area sends a configuration response message to the interference coordination device, and correspondingly, the interference coordination device receives the configuration response message sent by the cell in the preset area.

The configuration request message is used for acquiring the configuration information of the cell, and the configuration response message comprises the configuration information of the cell.

Step 302, the interference coordination device takes a cell meeting a second preset condition in each cell in the preset area as a preset cell.

Wherein the second preset condition includes: the overlapping frequency band exists between the working frequency band currently configured by the cell and the preset frequency band. The preset frequency band is a frequency band shared between cells in a preset area. Each cell in the preset area can transmit data through the preset frequency band.

It should be noted that, the frequency band where the working frequency band currently configured by the cell overlaps with the preset frequency band means that the same sub-frequency band exists in the working frequency band currently configured by the cell and the preset frequency band. The preset frequency band may be divided into a plurality of sub-frequency bands, each having the same bandwidth.

The current configuration of the cell is exemplified by 949-960MHz, and the preset frequency band is 925-960MHz. The same sub-frequency band exists in the currently configured working frequency band of the cell and the preset frequency band, namely, a plurality of sub-frequency bands contained in the 949-960MHz frequency band take 5G as an example, if the bandwidth of each sub-frequency band is 1 PRB, 51 PRBs are contained in the 949-960MHz frequency band, and the corresponding 51 sub-frequency bands are obtained. The cell thus fulfils the second preset condition. Based on the technical scheme, the interference coordination device can determine potential interfered cells from the preset area.

Step 303, the interference coordination device determines a target cell according to the network system supported by the preset cell.

In a possible implementation manner, the interference coordination device determines a priority corresponding to a preset cell according to a network system supported by the preset cell, and determines a target cell according to the priority corresponding to the preset cell.

The priority corresponding to the preset cell is used for reflecting the importance degree of the network system supported by the preset cell. Different network systems correspond to different priorities. The priority corresponding to each network system can be preconfigured in the interference coordination device. For example, the priority may be configured to: the priority of 5G is greater than the priority of 4G, and the priority of 4G is greater than the priority of 3G. The correspondence between network system and priority can be set according to practical situations, which is not limited by the application.

As a possible embodiment, in response to the preset cell including a cell with the highest priority, the interference coordination device determines the target cell as the cell with the highest priority.

And responding to the preset cells comprising a plurality of cells with the highest priority, acquiring service parameters of the cells with the highest priority by the interference coordination device, and determining a target cell according to the service parameters of the cells with the highest priority.

The service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period, wherein the service volume factor is used for representing the size of the service volume borne by the cell, and the performance factor of the cell is used for representing the importance degree of the service borne by the cell.

The traffic factor may be, for example, a ratio of the traffic of the cell to a sum of the traffic of each of the cells in the preset cell. The traffic volume of the cell may be determined according to one or more parameters of the throughput rate of the cell, the number of connected users, the resource utilization of the physical resource blocks (physical resource block, PRBs). The performance factor may be a ratio of the number of high performance traffic connections established in a cell to the number of all traffic connections established in the cell. High performance traffic may be determined based on quality of service (quality of service, qoS) parameters.

In a possible implementation manner, the interference coordination device performs weighted summation on the traffic factor and the performance factor of each cell in the cells with the highest priority to obtain a plurality of weights, and takes the cell corresponding to the highest weight in the plurality of weights as the target cell.

Wherein, a plurality of cells with highest priority are in one-to-one correspondence with a plurality of weights.

It should be noted that, the sum of the weights of the traffic factor and the performance factor is 1, and the weight value may be specifically set according to the actual situation, which is not limited by the present application.

In one possible implementation manner, the interference coordination device sends service parameter request messages to a plurality of cells with highest priority, and the corresponding cells with highest priority receive the service parameter request messages sent by the interference coordination device.

And the cell with the highest priority sends the service parameter response message to the interference coordination device, and correspondingly, the interference coordination device receives the service parameter response messages sent by the cells with the highest priority.

The service parameter request message is used for acquiring the service parameters of the cell; the service parameter response message includes the service parameters of the cell.

Based on the technical scheme, the interference coordination device in the application determines the potential interfered cell according to the configuration information by acquiring the configuration information of each cell in the preset area, and further determines the target cell according to the priority, the traffic volume, the service performance requirement and other dimensions of the cell, so that the subsequent interference coordination is conveniently executed for the cell, and the cell is prevented from being interfered by signals. Therefore, the application can preferentially ensure the signal quality of the cell with higher priority, larger service volume and higher service performance requirement, thereby improving the overall service performance of the cell in the preset area.

Hereinafter, a procedure for the interference coordination device to acquire the first interfering cell causing interference to the target cell will be described.

As a possible embodiment of the present application, in connection with fig. 2, as shown in fig. 4, the above-mentioned step 201 may also be implemented by the following steps 401 to 403.

Step 401, the interference coordination device sends an interference detection message to the target cell. Correspondingly, the target cell receives the interference detection message sent by the interference coordination device.

The interference detection message is used for indicating the target cell to determine a first scrambling cell meeting a third preset condition. The third preset condition includes: the signal strength of the interference signal sent by the first interference applying cell received on the target sub-band is larger than a preset interference threshold, and the network system of the first interference applying cell is different from the network system of the target cell. The target sub-band is any one of the working frequency bands of the target cell.

Step 402, the target cell determines a first scrambling cell satisfying a third preset condition.

In one possible implementation, the target cell detects the signal strength of interfering signals from other cells on each sub-band in the operating band. And when the signal intensity of the interference exerting cell received on any one of the sub-frequency bands in the working frequency band is larger than a preset interference threshold value and the network system of the interference exerting cell is different from that of the target cell, taking the interference exerting cell as a first interference exerting cell and taking the sub-frequency band as an interference sub-frequency band of the first interference exerting cell.

The number of the first interfering cells that cause interference to the target cell may be one or more. One first scrambling cell corresponds to one interfering sub-band.

Step 403, the target cell sends an interference response message to the interference coordination device, and correspondingly, the interference coordination device receives the interference response message sent by the target cell.

In a possible implementation, the interference response message further includes an interference sub-band for each first interfering cell.

The interference sub-band of the first interference cell is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

Based on the technical scheme, the interference coordination device instructs the target cell to determine the first interference applying cell causing interference to the target cell based on the signal strength of the interference signal by sending the interference detection message to the target cell, so that the interference coordination operation is conveniently executed for the first interference applying cell, and the signal interference suffered by the target cell is reduced. Meanwhile, the technical scheme of the application can also exclude the cells with smaller interference influence on the target cells, reduce the number of the first scrambling cells, and further reduce the signaling overhead and the implementation complexity generated in the interference coordination process.

As a possible embodiment of the present application, as shown in fig. 2 and fig. 4, the method further includes the following step 404 before the above step 401.

Step 404, the interference coordination device sends an interference measurement message to the target cell.

The interference measurement message is used for indicating the target cell to determine the interference parameter of the target cell. The interference parameter includes at least one of a signal strength of an interference signal received on each sub-band in the operating band, a cell identification of a cell transmitting the interference signal, and a network system of the cell transmitting the interference signal.

The interference signal may be an existing reference signal (reference signal), such as a cell-specific reference signal (CRS), a channel state reference signal (channel state information reference signal, CSI-RS), a demodulation reference signal (demodulation reference signal, DMRS), or the like, or may be a newly introduced reference signal in the future.

The signal strength of the interference signal sent by the cell received on each sub-band in the working band may be the average value of the signal strengths of the interference signals sent by the cell in the preset period.

In a possible implementation, the target cell may measure the interference parameter of the target cell by means of an interference measurement module.

The interference measurement module may be disposed at an access network device where the target cell is located, or may be disposed at a UE in the target cell. When the interference measurement module is disposed at the UE in the target cell, the interference measurement module may transmit the interference parameter to the target cell after measuring the interference parameter. In this way, the interference parameter of the target cell in the present application can be used to characterize the signal interference suffered by the access network device where the target cell is located, and can also be used to characterize the signal interference suffered by the UE in the target cell.

The interference measurement module may also be configured to be located at the access network device where the target cell is located and at the UE in the target cell, and determine the interference parameter of the target cell according to the first interference parameter measured by the interference measurement module located at the access network device and the second interference parameter measured by the interference measurement module located at the UE.

Based on the technical scheme, the method and the device can determine the signal interference condition of the target cell based on the granularity of the sub-frequency band, further determine the first interference cell according to the measured interference parameter of the target cell, and improve the efficiency and accuracy of interference detection.

The procedure of the interference coordination device acquiring the compensation cell corresponding to each first interference application cell is described below.

As a possible embodiment of the present application, in conjunction with fig. 2, as shown in fig. 5, the above step 202 may also be implemented by the following steps 501-507.

Step 501, the interference coordination device sends a first indication message to each first scrambling cell. Correspondingly, the first scrambling cell receives a first indication message sent by the interference coordination device.

The first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition. The fourth preset condition includes: the difference between the signal intensity mean value of the first scrambling cell measured by the UE in the first scrambling cell and the signal intensity mean value of the measured candidate compensation cell is smaller than a first preset difference value. The first scrambling cell corresponds to one or more candidate compensating cells.

The first preset difference may be set according to practical situations, which is not limited by the present application, and in addition, only one first scrambling cell and one candidate compensating cell are shown in fig. 5 for the sake of understanding.

Step 502, the first scrambling cell determines candidate compensating cells satisfying a fourth preset condition.

In a possible implementation manner, the first scrambling cell acquires a measurement report of the accessed UE, and determines a candidate compensating cell meeting a fourth preset condition according to the measurement report.

The measurement report includes the signal strength of the first scrambling cell measured by the UE and the signal strength of the neighboring cells except for the first scrambling cell.

And under the condition that the difference value between the signal intensity average value of the first scrambling cell and the signal intensity average value of the adjacent cell is smaller than a first preset difference value, the first scrambling cell determines the adjacent cell as a candidate compensation cell.

The average value of the signal intensity of the first scrambling cell is the average value of the signal intensity of the first scrambling cell measured by each accessed UE, and the average value of the signal intensity of the adjacent cell is the average value of the signal intensity of the adjacent cell measured by each accessed UE.

Step 503, the first scrambling cell sends a first response message to the interference coordination device. Correspondingly, the interference coordination device receives a first response message sent by the first scrambling cell.

The first response message includes cell identifiers of candidate compensation cells corresponding to the first scrambling cell.

When there are a plurality of first scrambling cells, the interference coordination device receives a first response message sent by each first scrambling cell.

Step 504, the interference coordination device sends a second indication message to each candidate compensation cell. Correspondingly, the candidate compensation cell receives a second indication message sent by the interference coordination device.

The second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met. The fifth preset condition includes: the difference between the signal intensity mean value of the candidate compensation cell measured by the UE in the candidate compensation cell and the signal intensity mean value of the measured first scrambling cell is smaller than a second preset difference value.

The second preset difference may be set according to practical situations, which is not limited in the present application.

Step 505, the candidate compensation cell determines whether a fifth preset condition is satisfied.

In a possible implementation manner, the candidate compensation cell acquires a measurement report of the accessed UE, and determines whether a fifth preset condition is met according to the measurement report.

The measurement report includes the signal strength of the candidate compensation cell measured by the UE and the signal strength of the neighboring cells except the candidate compensation cell.

In the present application, only the UE in the candidate compensation cell that can measure the signal strength of the first scrambling cell can be used.

And under the condition that the difference value between the signal intensity average value of the candidate compensation cell and the signal intensity average value of the first scrambling cell is smaller than the second preset difference value, the candidate compensation cell determines that the fifth preset condition is met.

The signal strength average value of the candidate compensation cell is an average value of signal strengths of candidate compensation cells measured by the UE capable of measuring the signal strength of the first scrambling cell.

After determining that the fifth preset condition is met, the candidate compensating cell also performs the following step 506.

Step 506, the candidate compensation cell sends a second response message to the interference coordination device. Correspondingly, the interference coordination module receives a second response message sent by the candidate compensation cell.

Wherein the second response message includes cell identities of candidate compensating cells satisfying a fifth preset condition.

When the number of candidate compensating cells satisfying the fifth preset condition is plural, the interference coordination device receives the second response message sent by each candidate compensating cell satisfying the fifth preset condition.

Step 507, the interference coordination device determines that the compensation cell corresponding to each first scrambling cell is a candidate compensation cell meeting a fifth preset condition.

Based on the technical scheme, the interference coordination device can determine the compensation cell corresponding to each first interference cell through interaction between the interference coordination device and the first interference cells and the candidate compensation cells. Each determined compensating cell meets the condition that the difference value of the signal strengths of the compensating cell and the first scrambling cell, which are respectively measured by the UE in the first scrambling cell, is smaller than a first preset difference value, and meets the condition that the difference value of the signal strengths of the compensating cell and the first scrambling cell, which are respectively measured by the UE in the compensating cell, is smaller than a second preset difference value. Therefore, the technical scheme of the application can ensure that the UE in the first scrambling cell is positioned in the wireless signal coverage area where the first scrambling cell and the compensating cell overlap, improve the success rate of the UE in the scrambling cell to migrate to the compensating cell, and further ensure the network performance of the UE after switching.

Hereinafter, a procedure for instructing, by the interference coordination device, one or more UEs in the second scrambling cell to switch to the compensation cell corresponding to the second scrambling cell will be described.

As a possible embodiment of the present application, in connection with fig. 2, as shown in fig. 6, the above-mentioned step 204 may also be implemented by the following steps 601-604.

Step 601, the interference coordination device sends a migration trigger message to each second scrambling cell. Correspondingly, the second scrambling cell receives the migration trigger message sent by the interference coordination device.

The migration triggering message is used for indicating the second scrambling cell to switch the second target UE to the first compensating cell. The second target UE is the first N UEs in the second scrambling cell after the UEs are ordered from high to low according to the target signal strength. The target signal strength is the signal strength with the largest signal strength value of the plurality of compensating cells measured by any UE in the second interfering cell. N is a positive integer. The first compensation cell is a cell to which the second target UE is to migrate.

It should be noted that, the second target UE corresponds to the first compensation cells one by one, and the first compensation cells corresponding to each of the plurality of second target UEs may be the same compensation cell or different compensation cells. The number of the second scrambling cells in the present application may be one or more, and only one second scrambling cell is shown in fig. 6 for ease of understanding.

Step 602, the second scrambling cell determines a second target UE to be migrated.

In a possible implementation manner, the second scrambling cell determines the number of second target UEs to be migrated according to the interference sub-band, the working band and the number of UEs in the second scrambling cell, and determines the second target UEs according to the signal strength values of the multiple compensating cells measured by each UE in the second scrambling cell.

The ratio of the number of the second target UEs to the number of UEs in the second scrambling cell is equal to the ratio of the bandwidths of the interference sub-bands and the working bands of the second scrambling cell.

Illustratively, the number of second target UEs satisfies the following equation 1:

wherein N is the number of second target UE, K ^‘ And K is the bandwidth of the working frequency band of the second scrambling cell, and M is the number of the UE in the second scrambling cell.

As a possible embodiment, the second scrambling cell may rank the accessed UEs from high to low according to the target signal strength, and take the first N UEs as the second target UE.

The target signal strength is the signal strength with the largest signal strength value of a plurality of compensation cells measured by any UE in the second scrambling cell.

The target signal strength is higher, which means that the channel quality after the UE is switched to the compensation cell is better. By selecting the first N UEs with higher target signal strength as the second target UE, the technical scheme of the application can improve the migration success rate of the second target UE and ensure the network performance of the second target UE after migration.

When the UE measures the signal intensity of a plurality of signals of any compensating cell in a preset period, the signal intensity of the compensating cell measured by the UE is the average value of the signal intensities of the plurality of signals.

Illustratively, the second scrambling cell includes UE1, and the compensating cell measured by UE1 includes cell 1 and cell 2. The signal strengths of the signals of the cell 1 measured by the UE1 are { P11, P12, P13}, and the signal strengths of the signals of the cell 2 measured are { P21, P22, P23}. Wherein, the signal strength p1= (p11+p12+p13)/3 of the cell 1 measured by the UE, and the signal strength p2= (p21+p22+p23)/3 of the cell 2 measured by the UE. If P1> P2, the target signal strength of UE1 is P1.

Step 603, the second scrambling cell sends migration indication messages to the second target UE respectively. Correspondingly, the second target UE receives the migration indication message sent by the second scrambling cell.

The migration indication message is used for indicating the second target UE to switch to the first compensation cell. The migration indication message comprises a cell identifier of a compensation cell corresponding to the second scrambling cell, a network system supported by the compensation cell and available capacity.

In the present application, one or more second target UEs may be provided, and for convenience of understanding, only one second target UE is shown in fig. 6.

Step 604, the second target UE determines a first compensation cell to be migrated, and switches to the first compensation cell.

In a possible implementation manner, when the compensating cell corresponding to the second scrambling cell includes a cell meeting the sixth preset condition, the first compensating cell is a cell meeting the sixth preset condition.

When the compensating cells corresponding to the second scrambling cell comprise a plurality of cells meeting a sixth preset condition, the first compensating cell is the cell with the largest compensating available capacity in the plurality of cells meeting the sixth preset condition.

Wherein the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE.

It should be noted that, the second target UE may determine the first compensating cell to be migrated according to the network system, the working frequency band and the available capacity supported by the compensating cell, so that the cell to be migrated meets the access requirement of the second target UE, thereby ensuring the normal access of the second target UE. Meanwhile, the first compensation cell to be migrated is determined through the second target UE, so that signaling overhead between the UE and the access network equipment and between the UE and the interference coordination device can be reduced, and the migration efficiency of the UE is improved.

Illustratively, the network system supported by the second target UE includes {3G,4G }, the supported operating band includes { band1, band3}, the network system supported by the compensating cell 1 includes {3G }, and the operating band supported by the compensating cell 1 includes { band1}. The network system supported by the compensation cell 1 is included in the network system supported by the second target UE, and the working frequency band supported by the compensation cell 1 is included in the working frequency band supported by the second target UE.

Based on the above technical solution, the interference coordination device in the present application may instruct one or more UEs in the second scrambling cell to migrate to the corresponding compensating cell before instructing the second scrambling cell to perform the interference coordination operation. The UE to be migrated may be determined according to the interference sub-band bandwidth of the second scrambling cell. The larger the interference sub-band bandwidth of the second scrambling cell, the more spectrum resources that the second scrambling cell closes when performing the interference coordination operation, resulting in the less spectrum resources that the second scrambling cell uses. Therefore, the method and the device for determining the quantity of the target UE to be migrated based on the interference sub-frequency band can enable the available spectrum resources of the second scrambling cell to be matched with the data transmission requirements of the UE in the second scrambling cell, and ensure the service requirements of users.

The embodiment of the application can divide the functional modules or functional units of the interference coordination device according to the method example, for example, each functional module or functional unit can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware, or in software functional modules or functional units. The division of the modules or units in the embodiment of the present application is schematic, which is merely a logic function division, and other division manners may be implemented in practice.

As shown in fig. 7, a schematic structural diagram of an interference coordination device 70 according to an embodiment of the present application is provided, where the device includes:

a communication unit 702, configured to acquire a first scrambling cell that causes interference to a target cell; the target cell is any cell in a preset area; the first interfering cell is a cell causing interference to the target cell.

The communication unit 702 is further configured to obtain a compensation cell corresponding to each first scrambling cell; there is an overlapping coverage area between the compensating cell and the corresponding first interfering cell.

A processing unit 701, configured to determine a second scrambling cell from the first scrambling cells; the second scrambling cell is a cell in the first scrambling cell in which interference coordination is to be performed.

The communication unit 702 is further configured to instruct one or more user equipments UE in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell.

The communication unit 702 is further configured to instruct the second scrambling cell to perform an interference coordination operation.

In one possible implementation, the processing unit 701 is configured to: taking a cell meeting a first preset condition in the first scrambling cell as a second scrambling cell; the first preset condition includes at least one of: each network system supported by the first target UE is included in the compensation network system set, each working frequency band supported by the first target UE is included in the compensation working frequency band set, and the compensation available capacity is larger than or equal to the traffic of the first scrambling cell; the first target UE is the UE in the first scrambling cell; the compensation network system set comprises a corresponding network system supported by each compensation cell; the compensation working frequency band set comprises corresponding working frequency bands supported by each compensation cell; the compensation available capacity is the sum of the available capacities of each corresponding compensation cell.

In one possible implementation, the communication unit 702 is configured to: determining first capability information of a target scrambling cell for each target scrambling cell; the target scrambling cell is any one cell in the first scrambling cell; the first capability information comprises network type, working frequency band and traffic of the target scrambling cell supported by each UE in the target scrambling cell; determining second capability information of the target compensation cell for each target compensation cell; the target compensation cell is any cell in the compensation cells corresponding to the target scrambling cell; the second capability information includes a set of compensated network modes, a set of compensated operating frequency bands, and a compensated available capacity.

In one possible implementation, the communication unit 702 is configured to: transmitting a first capability request message to a target scrambling cell; the first capability request message is used for indicating the target scrambling cell to acquire first capability information; receiving a first capacity response message sent by a target scrambling cell; the first capability response message includes first capability information of the target interfering cell.

In one possible implementation, the communication unit 702 is configured to: sending a second capability request message to the target compensation cell; the second capability request message is used for indicating the target compensation cell to acquire second capability information; receiving a second capacity response message sent by the target compensation cell; the second capability response message includes second capability information of the target offset cell.

In a possible implementation manner, the communication unit 702 is further configured to obtain configuration information of each cell in the preset area; the configuration information comprises at least one of a cell identifier, a working frequency band currently configured by the cell and a network system supported by the cell; the processing unit 701 is further configured to use, as a preset cell, a cell that satisfies a second preset condition in each cell in the preset area; the second preset condition includes: overlapping frequency bands exist between a working frequency band currently configured in a cell and a preset frequency band; the processing unit 701 is further configured to determine a target cell according to a network system supported by a preset cell.

In one possible implementation, the communication unit 702 is configured to: respectively sending configuration request information to each cell in a preset area; the configuration request message is used for acquiring the configuration information of the cell; receiving a configuration response message sent by a cell in a preset area; the configuration response message includes configuration information of the cell.

In one possible implementation, the processing unit 701 is configured to: determining the priority corresponding to the preset cell according to the network system supported by the preset cell; and determining the target cell according to the priority corresponding to the preset cell.

In a possible implementation manner, the processing unit 701 is further configured to: responding to the preset cells including a cell with the highest priority, and determining the target cell as the cell with the highest priority; the communication unit 702 is further configured to: responding to a preset cell comprising a plurality of cells with highest priority, and acquiring service parameters of the cells with the highest priority; the service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period; the traffic factor is used for representing the size of traffic carried by the cell; the performance factor of the cell is used for representing the importance degree of the business carried by the cell; the processing unit 701 is further configured to determine a target cell according to service parameters of a plurality of cells with highest priorities.

In one possible implementation, the communication unit 702 is configured to: respectively sending service parameter request messages to a plurality of cells with highest priorities; the service parameter request message is used for acquiring the service parameters of the cell; receiving service parameter response messages sent by a plurality of cells with highest priorities; the service parameter response message includes the service parameters of the cell.

In one possible implementation, the processing unit 701 is configured to: the business volume factor and the performance factor of each cell in the cells with the highest priority are weighted and summed to obtain a plurality of weights; the cells with the highest priorities are in one-to-one correspondence with the weights; and taking a cell corresponding to the highest weight in the plurality of weights as a target cell.

In one possible implementation, the communication unit 702 is configured to: transmitting an interference detection message to a target cell; the interference detection message is used for indicating the target cell to determine a first interference application cell meeting a third preset condition; the third preset condition includes: the signal strength of an interference signal sent by a first interference applying cell received on a target sub-band is larger than a preset interference threshold, and the network system of the first interference applying cell is different from the network system of the target cell; the target sub-frequency band is any one of the working frequency bands of the target cell; receiving an interference response message sent by a target cell; the interference response message includes a cell identification of the first interfering cell.

In one possible implementation, the interference response message further includes an interference sub-band for each first interfering cell; the interference sub-band is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

In one possible implementation, the communication unit 702 is configured to: transmitting an interference measurement message to a target cell; the interference measurement message is used for indicating the target cell to determine the interference parameter of the target cell; the interference parameter includes at least one of a signal strength of an interference signal received on each sub-band in the operating band, a cell identification of a cell transmitting the interference signal, and a network system of the cell transmitting the interference signal.

In a possible implementation manner, the communication unit 702 is further configured to send a first indication message to each first scrambling cell separately; the first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition; the fourth preset condition includes: the difference value between the signal intensity average value of the first scrambling cell measured by the UE in the first scrambling cell and the signal intensity average value of the measured candidate compensation cell is smaller than a first preset difference value; the first scrambling cell corresponds to one or more candidate compensation cells; the communication unit 702 is further configured to receive a first response message sent by the first scrambling cell; the first response message comprises cell identifiers of candidate compensation cells corresponding to the first scrambling cell; a communication unit 702, configured to send a second indication message to each candidate compensation cell; the second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met; the fifth preset condition includes: the difference value between the signal intensity average value of the candidate compensation cell measured by the UE in the candidate compensation cell and the signal intensity average value of the measured first scrambling cell is smaller than a second preset difference value; a communication unit 702, configured to receive a second response message sent by the candidate compensation cell; the second response message comprises cell identifiers of candidate compensation cells meeting a fifth preset condition; the processing unit 701 is further configured to determine that the compensation cell corresponding to each first scrambling cell is a candidate compensation cell that satisfies a fifth preset condition.

In one possible implementation, the communication unit 702 is configured to: respectively sending a migration trigger message to each second scrambling cell; the migration triggering message is used for indicating the second scrambling cell to switch the second target UE to the first compensation cell; the second target UE is the first N UEs in the second scrambling cell after the UEs are ordered from high to low according to the target signal strength; the target signal strength is the signal strength with the largest signal strength value of a plurality of compensation cells measured by any UE in the second scrambling cell; n is a positive integer.

In one possible implementation, the ratio of the number of second target UEs to the number of UEs in the second scrambling cell is equal to the bandwidth ratio of the interfering sub-band to the operating band of the second scrambling cell.

In one possible implementation manner, when the compensating cell corresponding to the second scrambling cell includes a cell meeting a sixth preset condition, the first compensating cell is a cell meeting the sixth preset condition; the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE; when the compensating cells corresponding to the second scrambling cell comprise a plurality of cells meeting a sixth preset condition, the first compensating cell is the cell with the largest compensating available capacity in the plurality of cells meeting the sixth preset condition.

In one possible implementation, the communication unit 702 is configured to: transmitting an interference coordination message to each second interference application cell respectively; the interference coordination message is used to instruct the second interfering cell to stop data transmission on the corresponding interfering sub-band.

When implemented in hardware, the communication unit 702 in the embodiments of the present application may be integrated on a communication interface, and the processing unit 701 may be integrated on a processor. A specific implementation is shown in fig. 8.

Fig. 8 shows a further possible structural schematic diagram of the interference coordination device involved in the above-described embodiment. The interference coordination device 80 includes: a processor 802 and a communication interface 803. The processor 802 is configured to control and manage actions of the interference coordination device, e.g., perform the steps performed by the processing unit 701 described above, and/or perform other processes of the techniques described herein. The communication interface 803 is used to support communication of the interference coordination device with other network entities, e.g. to perform the steps performed by the communication unit 702 described above. The interference coordination device may also comprise a memory 801 and a bus 804, the memory 801 being used for storing program codes and data of the interference coordination device.

Wherein the memory 801 may be a memory in an interference coordination device or the like, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk or solid state disk; the memory may also comprise a combination of the above types of memories.

The processor 802 described above may be implemented or executed with various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, etc.

Bus 804 may be an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus or the like. The bus 804 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.

The interference coordination means in fig. 8 may also be a chip. The chip includes one or more (including two) processors 802 and a communication interface 803.

In some embodiments, the chip also includes a memory 801, which may include read-only memory and random access memory, and provides operating instructions and data to the processor 802. A portion of the memory 801 may also include non-volatile random access memory (non-volatile random access memory, NVRAM).

In some implementations, the memory 801 stores elements, execution modules or data structures, or a subset thereof, or an extended set thereof.

In the embodiment of the present application, the corresponding operation is performed by calling the operation instruction stored in the memory 801 (the operation instruction may be stored in the operating system).

Wherein the processor 802 may implement or execute the various exemplary logic blocks, elements, and circuits described in connection with the present disclosure. The processor may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, units and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, etc.

The memory 801 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk or solid state disk; the memory may also comprise a combination of the above types of memories.

Bus 804 may be an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus or the like. The bus 804 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one line is shown in fig. 8, but not only one bus or one type of bus.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

Embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the interference coordination method in the method embodiments described above.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, and when the instructions run on a computer, the instructions cause the computer to execute the interference coordination method in the method flow shown in the method embodiment.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access Memory (Random Access Memory, RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), a register, a hard disk, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the interference coordination device, the computer readable storage medium and the computer program product in the embodiments of the present application can be applied to the above-mentioned method, the technical effects that can be obtained by the method can also refer to the above-mentioned method embodiments, and the embodiments of the present application are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, indirect coupling or communication connection of devices or units, electrical, mechanical, or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The present application is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of interference coordination, the method comprising:

acquiring a first scrambling cell causing interference to a target cell; the target cell is any cell in a preset area; the first scrambling cell is a cell which causes interference to a target cell;

acquiring a compensation cell corresponding to each first scrambling cell; overlapping wireless signal coverage areas exist between the compensation cell and the corresponding first scrambling cell;

determining a second scrambling cell from the first scrambling cell; the second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell;

Indicating one or more User Equipment (UE) in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell;

and indicating the second scrambling cell to execute interference coordination operation.

2. The method of claim 1, wherein the determining a second scrambling cell from the first scrambling cells comprises:

taking a cell meeting a first preset condition in the first scrambling cell as a second scrambling cell; the first preset condition includes at least one of the following: each network system supported by the first target UE is included in the compensation network system set, each working frequency band supported by the first target UE is included in the compensation working frequency band set, and the compensation available capacity is larger than or equal to the service volume of the first scrambling cell; the first target UE is a UE in the first scrambling cell; the compensation network system set comprises a network system supported by each corresponding compensation cell; the compensation working frequency band set comprises corresponding working frequency bands supported by each compensation cell; the compensating available capacity is the sum of the available capacities of each corresponding compensating cell.

3. The method of claim 2, wherein prior to said taking as a second scrambling cell a cell of the first scrambling cells that meets a first preset condition, the method further comprises:

Determining first capability information of each target scrambling cell for each target scrambling cell; the target scrambling cell is any one cell in the first scrambling cell; the first capability information comprises a network system supported by each UE in the target scrambling cell, a working frequency band and traffic of the target scrambling cell;

determining second capability information of each target compensation cell for the target compensation cell; the target compensation cell is any one cell of compensation cells corresponding to the target scrambling cell; the second capability information comprises a compensation network system set, a compensation working frequency band set and a compensation available capacity.

4. The method of claim 3, wherein the determining the first capability information of the target interfering cell comprises:

sending a first capability request message to the target scrambling cell; the first capability request message is used for indicating the target scrambling cell to acquire first capability information;

receiving a first capacity response message sent by the target scrambling cell; the first capability response message includes first capability information of the target interfering cell.

5. A method according to claim 3, wherein said determining the second capability information of the target compensation cell comprises:

sending a second capability request message to the target compensation cell; the second capability request message is used for indicating the target compensation cell to acquire second capability information;

receiving a second capacity response message sent by the target compensation cell; the second capability response message includes second capability information of the target compensation cell.

6. The method of claim 1, wherein prior to the acquiring the first interfering cell that causes interference to the target cell, the method further comprises:

acquiring configuration information of each cell in the preset area; the configuration information comprises at least one of a cell identifier, a working frequency band currently configured by a cell and a network system supported by the cell;

taking a cell meeting a second preset condition in each cell in the preset area as a preset cell; the second preset condition includes: overlapping frequency bands exist between a working frequency band currently configured in a cell and a preset frequency band;

and determining the target cell according to the network system supported by the preset cell.

7. The method of claim 6, wherein the obtaining configuration information of each cell in the preset area comprises:

respectively sending a configuration request message to each cell in the preset area; the configuration request message is used for acquiring the configuration information of the cell;

receiving a configuration response message sent by a cell in the preset area; the configuration response message includes configuration information of the cell.

8. The method according to claim 6, wherein the determining the target cell according to the network system supported by the preset cell includes:

determining the priority corresponding to the preset cell according to the network system supported by the preset cell;

and determining the target cell according to the priority corresponding to the preset cell.

9. The method according to claim 8, wherein the determining the target cell according to the priority corresponding to the preset cell includes:

responding to the preset cell comprising a cell with the highest priority, and determining the target cell as the cell with the highest priority;

responding to the preset cells comprising a plurality of cells with highest priority, and acquiring service parameters of the cells with the highest priority; the service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period; the traffic factor is used for representing the size of traffic carried by the cell; the performance factor of the cell is used for representing the importance degree of the service carried by the cell;

And determining the target cell according to the service parameters of the cells with the highest priorities.

10. The method of claim 9, wherein the obtaining the service parameters of the plurality of cells with highest priorities comprises:

respectively sending service parameter request messages to the cells with the highest priorities; the service parameter request message is used for acquiring the service parameters of the cell;

receiving service parameter response messages sent by the cells with the highest priorities; the service parameter response message includes the service parameters of the cell.

11. The method of claim 9, wherein said determining the target cell based on the traffic parameters of the plurality of highest priority cells comprises:

the business volume factor and the performance factor of each cell in the cells with the highest priority are weighted and summed to obtain a plurality of weights; the cells with the highest priorities are in one-to-one correspondence with the weights;

and taking a cell corresponding to the highest weight in the plurality of weights as the target cell.

12. The method of claim 1, wherein the obtaining the first interfering cell that causes interference to the target cell comprises:

Transmitting an interference detection message to the target cell; the interference detection message is used for indicating the target cell to determine the first scrambling cell meeting a third preset condition; the third preset condition includes: the signal strength of the interference signal sent by the first interference applying cell and received on the target sub-band is larger than a preset interference threshold, and the network system of the first interference applying cell is different from the network system of the target cell; the target sub-frequency band is any one of the working frequency bands of the target cell;

receiving an interference response message sent by the target cell; the interference response message includes a cell identification of the first interfering cell.

13. The method of claim 12, wherein the interference response message further comprises an interference sub-band for each of the first interfering cells; the interference sub-band is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

14. The method of claim 12, wherein prior to said sending the interference detection message to the target cell, the method further comprises:

Transmitting an interference measurement message to the target cell; the interference measurement message is used for indicating the target cell to determine the interference parameter of the target cell; the interference parameter comprises at least one of signal strength of an interference signal received on each sub-band in the working frequency band, cell identification of a cell transmitting the interference signal and network system of the cell transmitting the interference signal.

15. The method of claim 1, wherein the obtaining a compensation cell corresponding to each first scrambling cell comprises:

respectively sending a first indication message to each first scrambling cell; the first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition; the fourth preset condition includes: the difference value between the signal intensity average value of the first scrambling cell measured by the UE in the first scrambling cell and the measured signal intensity average value of the candidate compensation cell is smaller than a first preset difference value; the first scrambling cell corresponds to one or more candidate compensation cells;

receiving a first response message sent by the first scrambling cell; the first response message comprises cell identifiers of candidate compensation cells corresponding to the first scrambling cell;

Respectively sending a second indication message to each candidate compensation cell; the second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met; the fifth preset condition includes: the difference value between the signal intensity average value of the candidate compensation cell measured by the UE in the candidate compensation cell and the measured signal intensity average value of the first scrambling cell is smaller than a second preset difference value;

receiving a second response message sent by the candidate compensation cell; the second response message comprises cell identifiers of the candidate compensation cells meeting a fifth preset condition;

and determining the compensation cell corresponding to each first scrambling cell as a candidate compensation cell meeting a fifth preset condition.

16. The method of claim 1, wherein the instructing the one or more user equipments UE in the second scrambling cell to switch to the compensation cell corresponding to the second scrambling cell comprises:

respectively sending a migration trigger message to each second scrambling cell; the migration triggering message is used for indicating the second scrambling cell to switch the second target UE to the first compensation cell; the second target UE is the first N UEs of the UE in the second scrambling cell after being sequenced from high to low according to the target signal intensity; the target signal strength is the signal strength with the largest signal strength value of a plurality of compensation cells measured by any UE in the second scrambling cell; n is a positive integer.

17. The method of claim 16, wherein a ratio of the number of the second target UEs to the number of UEs in the second interfering cell is equal to a bandwidth ratio of an interfering sub-band to an operating band of the second interfering cell.

18. The method of claim 16, wherein the first compensating cell is a cell that satisfies a sixth preset condition when one of the compensating cells corresponding to the second interfering cell includes a cell that satisfies the sixth preset condition; the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE;

when the compensating cells corresponding to the second scrambling cells include a plurality of cells meeting a sixth preset condition, the first compensating cell is a cell with the largest compensating available capacity in the plurality of cells meeting the sixth preset condition.

19. The method according to any of claims 1-18, wherein the instructing the second interfering cell to perform an interference coordination operation comprises:

Transmitting an interference coordination message to each second scrambling cell respectively; the interference coordination message is used for indicating the second scrambling cell to stop data transmission on the corresponding interference sub-band.

20. An interference coordination device is characterized by comprising a communication unit and a processing unit;

the communication unit is used for acquiring a first scrambling cell which causes interference to a target cell; the target cell is any cell in a preset area; the first scrambling cell is a cell which causes interference to a target cell;

the communication unit is further used for acquiring a compensation cell corresponding to each first scrambling cell; overlapping wireless signal coverage areas exist between the compensation cell and the corresponding first scrambling cell;

the processing unit is used for determining a second scrambling cell from the first scrambling cells; the second scrambling cell is a cell to be subjected to interference coordination in the first scrambling cell;

the communication unit is further configured to instruct one or more user equipments UE in the second scrambling cell to switch to a compensation cell corresponding to the second scrambling cell;

the communication unit is further configured to instruct the second scrambling cell to perform an interference coordination operation.

21. The apparatus of claim 20, wherein the processing unit is configured to:

22. The apparatus of claim 21, wherein the communication unit is configured to:

23. The apparatus of claim 22, wherein the communication unit is configured to:

24. The apparatus of claim 22, wherein the communication unit is configured to:

25. The apparatus of claim 20, wherein the communication unit is further configured to obtain configuration information of each cell in the preset area; the configuration information comprises at least one of a cell identifier, a working frequency band currently configured by a cell and a network system supported by the cell;

the processing unit is further configured to use, as a preset cell, a cell that satisfies a second preset condition in each cell in the preset area; the second preset condition includes: overlapping frequency bands exist between a working frequency band currently configured in a cell and a preset frequency band;

the processing unit is further configured to determine the target cell according to a network system supported by the preset cell.

26. The apparatus of claim 25, wherein the communication unit is configured to:

27. The apparatus of claim 25, wherein the processing unit is configured to:

28. The apparatus of claim 27, wherein the processing unit is further configured to: responding to the preset cell comprising a cell with the highest priority, and determining the target cell as the cell with the highest priority;

the communication unit is further configured to: responding to the preset cells comprising a plurality of cells with highest priority, and acquiring service parameters of the cells with the highest priority; the service parameters comprise at least one of a service volume factor of a cell and a performance factor of the cell in a preset period; the traffic factor is used for representing the size of traffic carried by the cell; the performance factor of the cell is used for representing the importance degree of the service carried by the cell;

the processing unit is further configured to determine the target cell according to service parameters of the cells with the highest priorities.

29. The apparatus of claim 28, wherein the communication unit is configured to:

30. The apparatus of claim 28, wherein the processing unit is configured to:

31. The apparatus of claim 20, wherein the communication unit is configured to:

32. The apparatus of claim 31, wherein the interference response message further comprises an interference sub-band for each of the first interfering cells; the interference sub-band is a corresponding target sub-band when the signal intensity of the target cell received by the first interference cell is larger than a preset interference threshold.

33. The apparatus of claim 31, wherein the communication unit is configured to:

34. The apparatus of claim 20, wherein the communication unit is further configured to send a first indication message to each of the first scrambling cells, respectively; the first indication message is used for indicating the first scrambling cell to determine candidate compensation cells meeting a fourth preset condition; the fourth preset condition includes: the difference value between the signal intensity average value of the first scrambling cell measured by the UE in the first scrambling cell and the measured signal intensity average value of the candidate compensation cell is smaller than a first preset difference value; the first scrambling cell corresponds to one or more candidate compensation cells;

The communication unit is further configured to receive a first response message sent by the first scrambling cell; the first response message comprises cell identifiers of candidate compensation cells corresponding to the first scrambling cell;

the communication unit is further used for respectively sending a second indication message to each candidate compensation cell; the second indication message is used for indicating the candidate compensation cell to determine whether a fifth preset condition is met; the fifth preset condition includes: the difference value between the signal intensity average value of the candidate compensation cell measured by the UE in the candidate compensation cell and the measured signal intensity average value of the first scrambling cell is smaller than a second preset difference value;

the communication unit is further configured to receive a second response message sent by the candidate compensation cell; the second response message comprises cell identifiers of the candidate compensation cells meeting a fifth preset condition;

the processing unit is further configured to determine that the compensation cell corresponding to each first scrambling cell is a candidate compensation cell that satisfies a fifth preset condition.

35. The apparatus of claim 20, wherein the communication unit is configured to:

36. The apparatus of claim 35, wherein a ratio of the number of the second target UEs to the number of UEs in the second interfering cell is equal to a bandwidth ratio of an interfering sub-band to an operating band of the second interfering cell.

37. The apparatus of claim 35, wherein when the compensating cell corresponding to the second scrambling cell includes a cell satisfying a sixth preset condition, the first compensating cell is a cell satisfying the sixth preset condition; the sixth preset condition includes at least one of: the network system supported by the compensation cell is contained in the network system supported by the second target UE, and the working frequency band supported by the compensation cell is contained in the working frequency band supported by the second target UE;

38. The apparatus according to any one of claims 20-37, wherein the communication unit is configured to:

39. An interference coordination device, comprising: a processor and a communication interface; the communication interface being coupled to the processor for executing a computer program or instructions to implement the interference coordination method as claimed in any of claims 1-19.

40. A computer readable storage medium having instructions stored therein which, when executed by a computer, perform the interference coordination method of any of the preceding claims 1-19.