WO2019237801A1 - Procédé, dispositif et appareil d'atténuation de brouillage inter-cellules, et support de stockage informatique - Google Patents

Procédé, dispositif et appareil d'atténuation de brouillage inter-cellules, et support de stockage informatique Download PDF

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Publication number
WO2019237801A1
WO2019237801A1 PCT/CN2019/081228 CN2019081228W WO2019237801A1 WO 2019237801 A1 WO2019237801 A1 WO 2019237801A1 CN 2019081228 W CN2019081228 W CN 2019081228W WO 2019237801 A1 WO2019237801 A1 WO 2019237801A1
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cell
interference
serving cell
interference suppression
neighboring
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English (en)
Chinese (zh)
Inventor
王令斌
吴枫
刘强
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • Embodiments of the present invention relate to, but are not limited to, co-channel interference suppression technologies, and in particular, to a method, a device, an apparatus, and a computer storage medium for suppressing inter-cell interference.
  • Embodiments of the present invention provide a method, a device, a device, and a computer storage medium for suppressing interval interference, which can solve the problem of co-frequency interference between different systems.
  • an embodiment of the present invention provides a method for suppressing inter-cell interference, which is applied to a base station corresponding to a serving cell.
  • the method includes: according to N different systems with the serving cell An interference detection rule agreed in a neighboring cell performs interference detection on the serving cell; where N is greater than or equal to 1; an interference suppression decision is generated based on the interference detection result; the interference suppression decision is used to indicate that: A method of co-frequency interference caused by neighboring cells of different systems to a serving cell; and performing interference removal processing based on the interference suppression decision.
  • an embodiment of the present invention further provides an inter-cell interference suppression device, where the device is located in a base station corresponding to a serving cell, and the device includes a first processor and is configured to store A first memory of a computer program running on a first processor; wherein when the first processor is used to run the computer program, execute the steps of any one of the foregoing methods for suppressing inter-cell interference.
  • an embodiment of the present invention further provides an inter-cell interference suppression apparatus, where the apparatus is located in a base station corresponding to a serving cell, and the apparatus includes a detection module, a generation module, and a de-interference module;
  • a detection module is configured to perform interference detection on the serving cell according to interference detection rules agreed with the N different system neighboring cells of the serving cell; where N is greater than or equal to 1; and
  • a generation module is configured to perform interference detection based on the interference.
  • the detection result generates an interference suppression decision; the interference suppression decision is used to indicate: a way to reduce co-frequency interference caused by a neighboring cell of a different system of the serving cell to the serving cell; and an interference rejection module is used based on the interference suppression decision To perform interference removal processing.
  • the embodiment of the present invention further provides a computer storage medium, which stores a computer program, and is applied to a base station corresponding to a serving cell.
  • the computer program is executed by a processor to implement any of the foregoing. Steps of a method for inter-cell interference suppression.
  • another embodiment of the present invention provides another method for suppressing inter-cell interference, which is applied to a base station corresponding to a neighboring cell in a different system of a serving cell; the method includes: receiving an interference detection request, The interference detection request is used to indicate a time period in which a cell sends a service; a service is sent in a corresponding time period according to the interference detection request; and a first interference suppression indication message or a second interference suppression indication message is received, wherein the first An interference suppression indication message is used to instruct the cell to reconfigure the operating frequency band, and the second interference suppression indication message is used to instruct the cell to remain silent at an agreed time, or to jointly send services with the serving cell at the agreed time; Reconfigure the working frequency band of the cell according to the first interference suppression indication message; or keep silent at an agreed time according to the second interference suppression indication message; or, according to the second interference suppression indication message, The serving cell performs joint transmission of services.
  • the embodiment of the present invention further provides another inter-cell interference suppression device, where the device is located in a base station corresponding to a neighboring cell in a different system of a serving cell, and the device includes a second processor And a second memory for storing a computer program capable of running on a second processor; wherein, when the second processor is used to run the computer program, execute the steps of any one of the above-mentioned inter-cell interference suppression methods.
  • the embodiment of the present invention further provides another apparatus for suppressing inter-cell interference.
  • the apparatus is located in a base station corresponding to a neighboring cell in a different system of a serving cell, and the apparatus includes a first receiving module.
  • a first processing module, a second receiving module, and a second processing module wherein the first receiving module is configured to receive an interference detection request, and the interference detection request is used to indicate a time period for sending services of a cell; the first processing module For sending a service in a corresponding time period according to the interference detection request; a second receiving module for receiving a first interference suppression indication message or a second interference suppression indication message, wherein the first interference suppression indication message is used for For instructing the cell to reconfigure the operating frequency band, the second interference suppression indication message is used to instruct the cell to remain silent at an agreed time, or to jointly send services with the serving cell at an agreed time; the second processing module is configured to: Reconfiguring the working frequency band of the cell according to the first interference suppression indication message; or, according to the second interference suppression indication message; Suppression indication message, remain silent at the appointed time; or inhibiting indication message according to the second interference, joint transmission with the serving cell traffic.
  • the embodiment of the present invention further provides another computer storage medium on which a computer program is stored, and the computer program is applied to a base station corresponding to a neighboring cell in a different system of a serving cell, and the computer program is processed.
  • the steps of the method for implementing any one of the methods for suppressing inter-cell interference during execution of the processor are described in detail below.
  • An inter-cell interference suppression method, device, device, and computer storage medium provided by embodiments of the present invention are applied to a serving cell.
  • the serving cell performs interference detection; wherein N is greater than or equal to 1; and then, an interference suppression decision is generated according to the interference detection result; the interference suppression decision is used to indicate: reducing the neighboring cell of the serving cell to the serving cell Co-frequency interference caused; finally, based on the interference suppression decision, interference removal processing is performed.
  • Another method, device, device, and computer storage medium for suppressing inter-cell interference provided by embodiments of the present invention are applied to a base station corresponding to a neighboring cell in a different system of a serving cell; first, an interference detection request is received, and the interference detection request is received.
  • the serving cell performs joint transmission of services.
  • the neighboring neighboring cells of the serving cell can send services according to the interference detection request, which is convenient for measuring the interference received by the serving cell in the corresponding time period; and after the corresponding processing is performed according to the interference suppression indication message, the neighboring neighbors of the serving cell can be reduced. Co-frequency interference caused by the area to the serving cell.
  • an embodiment of the present invention further provides a computer program product.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer is caused to execute the methods described in the above aspects.
  • FIG. 1 is a schematic diagram of a multi-cell using a coordinated multi-point (CoMP) technology according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an overall bandwidth of a 5G communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of coexistence of a 4G cell and a 5G cell in an embodiment of the present invention
  • FIG. 4 is a first flowchart of a method for suppressing inter-cell interference according to an embodiment of the present invention
  • FIG. 5 is a second flowchart of a method for suppressing inter-cell interference according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an inter-cell interference suppression device according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a hardware structure of an inter-cell interference suppression device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another type of inter-cell interference suppression device according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a hardware structure of another inter-cell interference suppression device according to an embodiment of the present invention.
  • CoMP transmission and reception technology is a Long Term Evolution-Advanced (LTE-A) network that reduces or eliminates co-channel interference to improve cell-edge throughput, increase high-rate data service coverage, and improve System throughput technology;
  • CoMP is the application of multi-input multi-output (MIMO) technology in multiple cells. As shown in Figure 1, Cell0 and Cell1 represent two adjacent cells. Both can use CoMP Technology works together.
  • joint reception is generally used in the uplink, and multiple cells or multiple base stations simultaneously receive and process the uplink signal of the same user to obtain the receive diversity gain and power gain; in the downlink
  • the following two typical technologies can be used in the network: 1) joint transmission, that is, multiple cells or multiple base stations send downlink signals of the same user at the same time; 2) interference avoidance, that is, when the serving cell sends data, other neighboring cells Keep silent at the same time-frequency resource (do not send data); the above two technologies for the downlink can effectively reduce the same-frequency interference in the same frequency-domain resources in other cells and improve the throughput of edge users.
  • CoMP technology can reduce inter-cell Co-Channel Interference (CCI) through multi-cell coordinated scheduling or joint processing, improve user signal quality, and improve communication while improving the performance of edge users.
  • CCI Co-Channel Interference
  • the overall performance of the system and it can effectively eliminate co-channel interference and improve spectrum utilization.
  • the CoMP technology can be considered as an anti-interference technology applied in the LTE-A network, and belongs to the anti-interference technology in the same system.
  • the serving cell can collect and collect A3 measurement events reported by user equipment (UE).
  • UE user equipment
  • the interference signal strength of each neighboring cell in the LTE network can determine the interference degree of the neighboring cell to the serving cell, and then determine the strong interfering cell. After that, inter-cell interference coordination can be performed.
  • CoMP technology is an anti-interference technology in the same system, it cannot solve the problem of co-frequency interference between different systems of the 4G communication system and the 5G communication system.
  • the 5G communication system as a mobile communication system for 2020 and beyond, will penetrate into all areas of society; the 5G communication system will use new air interface technology to provide ultra-high-speed services; therefore, the bandwidth of the 5G communication system is much larger than 4G
  • the bandwidth of the communication system for example, the bandwidth of a 5G communication system can reach 100M, while the bandwidth of a 4G communication system can only reach a maximum of 20M.
  • the 5G protocol proposes the large concept of Bandwidth Part (BWP).
  • BW Bandwidth Part
  • the overall bandwidth (Bandwidth, BW) is divided into several BWPs, and the UE's services It can only be performed within the activated BWP, and a UE can only activate one BWP at the same time.
  • the frequency points used by the 5G network and the frequency points used by the 4G network can overlap, for example, sub1GHz, 3.5GHz and other frequency points;
  • the 4G network and the 5G network can simultaneously provide services to the terminal.
  • the 5G network may cause serious interference to 4G services.
  • the NR cell is a 5G cell
  • the LTE cell is a 4G cell, filled with diagonal lines. The square represents the working frequency band of the cell. Multiple 5G cells may cause interference to the services of the adjacent 4G cells.
  • the premise of solving the co-channel interference problem is the measurement and determination of the interference source.
  • the measurement and determination of the interference source are currently lacking; specifically In the early stage of 5G base station layout, hotspot coverage was the main method.
  • LTE single-mode mobile phones were still the mainstay in the current network. LTE single-mode mobile phones could not complete the measurement of the New Radio (NR) cell of the 5G network.
  • NR New Radio
  • the first embodiment of the present invention describes a method for suppressing inter-cell interference, which can be used to solve co-frequency interference between a serving cell and a neighboring cell in a different system adjacent to the serving cell.
  • the communication system in the neighboring cell of the different system communicates with the serving cell.
  • the systems are different; for example, when the serving cell is a Long Term Evolution (LTE) cell, the inter-system neighboring cell NR cell of the serving cell; when the serving cell is an NR cell, the serving cell The inter-system neighbor cell is an LTE cell.
  • LTE Long Term Evolution
  • FIG. 4 is a first flowchart of a method for suppressing inter-cell interference according to an embodiment of the present invention. As shown in FIG. 4, the process may include: Step 401: a base station corresponding to a serving cell and N different system neighboring cells of the serving cell An agreed interference detection rule is used to perform interference detection on the serving cell according to the agreed interference detection rule, where N is greater than or equal to 1.
  • the working frequency band of each cell of the N different system neighboring cells of the serving cell and the serving cell may overlap.
  • the working frequency band of each cell of the N different system neighboring cells of the serving cell and the serving cell may be Partial overlap is formed (the two are not completely the same), or all overlaps are formed (the two are completely the same); when the working frequency band of each cell of the N different system neighboring cells of the serving cell and the serving cell overlap, the serving cell is described Co-frequency interference may occur in each cell of the N different system neighboring cells of the serving cell.
  • the agreed interference detection rule includes: when i is taken from 1 to N respectively, the base station corresponding to the serving cell sends the i-th interference detection to the base station corresponding to the i-th cell in the N different system neighboring cells.
  • Request the i-th interference detection request is used to indicate a time period for sending services of the i-th cell in the N different-system neighboring cells; and a sending service of each cell in the N-th different-system neighboring cells Time interval, perform interference detection on the serving cell.
  • the type of the service transmitted by the i-th cell in the N inter-system neighboring cells is not limited, and the time period of sending the service by the i-th cell in the N inter-system neighboring cells may include: The starting time point of the transmission service of the i-th cell in the N different-system neighboring cells and the duration of the transmission service of the i-th cell in the N-non-system neighboring cells.
  • the base station corresponding to the i-th cell in the N hetero-system neighboring cells After receiving the i-th interference detection request, the base station corresponding to the i-th cell in the N hetero-system neighboring cells performs the N hetero-system neighboring cells in the time period of the sending service indicated by the i-th interference detection request.
  • the service of the i-th cell in.
  • the base station corresponding to cell0 may send an interference detection request to the base station corresponding to cell1 to indicate the start time and duration of the sending service of cell1.
  • N is greater than or equal to 2
  • the indicated time periods in which the cells send services do not overlap each other.
  • the neighboring cells of different systems in the serving cell send services in different time periods, which facilitates the detection of the interference caused by the neighboring cells of the different systems in the serving cell to the serving cell.
  • the start time and duration of the sending service of cell3 are : Starts at 1:00 for 1 minute; according to the interference detection request sent by the base station corresponding to cell2 to the base station corresponding to cell4, the start time and duration of the sending service of cell4 are: starting at 1:05 for 1 minute; you can see It is shown that the time period of the transmission service of the cell 3 and the time period of the transmission service of the cell 4 do not overlap with each other.
  • the i-th interference detection request is further used to indicate a period of time during which the i-th cell in the neighbors of the N different systems is kept silent; here, keeping silent may refer to stopping Sending services; after receiving the i-th interference detection request, the base station corresponding to the i-th cell in the N different system neighboring cells remains silent during the period of silence indicated by the i-th interference detection request.
  • the time period for keeping the i-th cell in the N neighboring cells of the different systems to remain silent includes the time of sending services of other cells in the N neighboring cells of the different systems. That is to say, when transmitting services of other cells in the N different-system neighboring cells, the i-th cell in the N different-system neighboring cells remains silent, and the The other cells are: all cells except the i-th cell in the N neighboring cells of the different systems.
  • the start time and duration of the sending service of cell6 are respectively : Start at 2:00 for 1 minute; the start time and duration of cell6 to remain silent are: start at 2:05 for 1 minute; according to the interference detection request sent by the base station corresponding to cell5 to the base station corresponding to cell7, The start time and duration of the sending service are: starting at 2:05 for 1 minute; the start time and duration of the silence of cell7 are: starting at 2:00 for 1 minute.
  • each interference detection request sent by the base station corresponding to the serving cell may instruct multiple neighboring cells in the different system to remain silent in the same time period.
  • the serving cell has 3 different systems.
  • the starting time and duration of the sending service of the first heterogeneous neighboring cell in the serving cell are: starting at 1:02, lasting 1 minute, and the second heterogeneous neighboring cell in the serving cell and the third
  • the time periods for keeping silent in neighboring areas of different systems all include: 1 minute after the start of 1:02.
  • the base station corresponding to the serving cell may determine the N number of base stations according to the first interference detection request to the Nth interference detection request sent. A time period for sending services of each cell in a neighboring cell of a different system; in this way, interference detection may be performed on the serving cell during a time period of sending services for each cell in the N neighboring cells of a different system.
  • a base station corresponding to the serving cell may detect a value of a degree of interference, and the value of the degree of interference is used to indicate a degree of interference to the serving cell; here, the interference The greater the value of the degree, the more severe the degree of interference experienced by the serving cell.
  • the base station corresponding to the serving cell can obtain the noise interference power (NI) measurement value corresponding to the serving cell through detection, and can also receive the measurement event reported by the UE in the serving cell. Then, the interference degree value may be determined according to the acquired NI measurement value or measurement event; in one example, the serving cell may be an LTE cell.
  • NI noise interference power
  • the NI measurement value may be directly determined as the value of the degree of interference; it can be understood that, because of the time period of sending services for each cell in the N neighboring cells of the different system, The interference degree values can be all obtained, so N interference degree values can be obtained.
  • the serving cell is recorded as LTE0, and the serving cell has three neighbors of different systems, which are recorded as NR0, NR1, and NR2, respectively.
  • the NI measurement value measured when the cell NR0 sends a service can be NI0, and so on, the cell NR1 sends
  • the NI measurement value measured during the service may be NI1
  • the NI measurement value measured when the cell NR2 sends the service may be NI2.
  • the base station corresponding to the serving cell may be based on the measurement event reported by the UE before the service is sent from the i-th cell in the N different-system neighboring cells and the i-th cell in the N-th-system neighboring cells.
  • a measurement event reported by the UE determines the interference level value.
  • a manner of determining the interference level value according to the measurement event reported by the UE may be set in advance.
  • the measurement event reported by the UE may be an A event; the A event may include at least one of the following events: A1 event: indicates that the signal quality of the serving cell is higher than a certain threshold; when an event meeting this condition is reported, The eNodeB can stop inter-frequency / different system measurement; A2 event: indicates that the signal quality of the serving cell is below a certain threshold; when an event meeting this condition is reported, the e-base station can start inter-frequency / inter-system measurement; A3 Event: indicates that the signal quality of the adjacent cell in the same frequency is higher than that of the serving cell.
  • the evolved base station can start the same frequency handover;
  • A4 event indicates that the signal quality of the adjacent cell in the different frequency is higher than a certain threshold.
  • the evolved base station can initiate inter-frequency handover;
  • A5 event indicates that the signal quality of the serving cell is lower than a certain threshold and the signal quality of the neighboring cell is higher than a certain threshold.
  • the LTE serving cell can collect the signal quality of the neighboring cells in the same system through the feedback of the UE.
  • the signal quality of the same frequency LTE neighboring cells can be collected through the A3 event.
  • the serving cell suffers a low degree of interference, and the value of the determined degree of interference is small; if the UE reports the A1 event before sending the service to the i-th cell in the neighboring cells of the N different systems, and the When the UE reports the A2 event when transmitting services of the i-th cell in the neighboring cells of the N heterogeneous systems, it can be considered that the serving cell has a higher degree of interference, and the determined value of the degree of interference is larger.
  • Step 402 The base station corresponding to the serving cell generates an interference suppression decision according to the interference detection result.
  • the interference suppression decision is used to indicate a manner of reducing co-frequency interference caused by a neighboring cell of a different system of the serving cell to the serving cell.
  • the interference detection result may be a value of the degree of interference described above.
  • the base station corresponding to the serving cell may determine, according to the interference detection result, among the N heterogeneous neighboring cells of the serving cell, a cell requiring interference suppression. ; Generate interference suppression decisions for cells that require interference suppression.
  • a cell that sends a service when detecting the value of the degree of interference is determined as a cell that needs to perform interference suppression.
  • the neighboring area of the different system corresponding to the disturbance level value less than or equal to the preset threshold may be ignored, that is, the neighboring area of the different system is ignored.
  • not all adjacent neighbor systems of the same system that have the same frequency interference with the serving cell need to perform interference suppression; for adjacent neighbor systems of the different system corresponding to a lower value of the interference level, it is not necessary to perform interference suppression.
  • Interference suppression; interference suppression is required only for neighboring areas of different systems corresponding to higher values of interference.
  • the time-frequency resources of neighboring areas of different systems can be used to the maximum extent, and the bandwidth of neighboring areas of different systems can be improved. Utilization can improve user throughput and overall network spectrum utilization.
  • Step 403 The base station corresponding to the serving cell performs interference removal processing based on the interference suppression decision.
  • the base station corresponding to the serving cell first detects the total traffic of each UE in the serving cell. When the total traffic of each UE in the serving cell is greater than the traffic threshold, interference suppression is required.
  • the base station corresponding to at least one of the cells sends a first interference suppression indication message, and the first interference suppression indication message is used to instruct the corresponding cell to reconfigure the operating frequency band.
  • the reconfigured operating frequency band needs to be related to the serving cell.
  • the operating frequency bands do not overlap each other.
  • the base station corresponding to the different system neighboring cell of the serving cell may reconfigure the working frequency band of the cell according to the first interference suppression indication message; for example, the different system neighboring cell of the serving cell When it is an NR cell, a neighboring cell of a different system of a serving cell may reconfigure a BWP according to the first interference suppression indication message.
  • the co-frequency interference caused by the corresponding neighboring cells in the different system to the serving cell can be eliminated.
  • the neighboring cells in the different system of the serving cell are NR cells
  • the wide band of the NR cell can be used.
  • a second interference suppression indication message is sent to a base station corresponding to at least one of the cells in need of interference suppression; the second interference suppression indication message is used for Instruct the corresponding cell to remain silent at the agreed time, or perform joint service transmission with the serving cell at the agreed time.
  • the base station corresponding to the different system neighboring cell of the serving cell successfully reconfigures the working frequency band of the cell, it sends a confirmation message that the working frequency band is successfully reconfigured to the serving cell;
  • the serving cell sends a confirmation message that the reconfiguration of the working frequency band fails.
  • the base station corresponding to the serving cell After the base station corresponding to the serving cell receives the confirmation message that the working frequency band is successfully reconfigured, it does not process the cell that sends the confirmation message that the working frequency band is successfully reconfigured.
  • the base station corresponding to the serving cell When the base station corresponding to the serving cell receives a confirmation message that the reconfiguration of the operating frequency band of the neighboring cell of the serving cell fails, it sends a second interference suppression indication message to the base station corresponding to at least one of the cells requiring interference suppression.
  • the base station corresponding to the neighboring cell of the different system of the serving cell may keep silent for an agreed time according to the second interference suppression indication message
  • the total service volume of each UE in the serving cell can be determined by the amount of uplink data to be sent indicated by the buffer status reports (Buffer Status Reports, BSR) of each UE in the serving cell.
  • BSR Buffer Status Reports
  • a cooperative working mode of the serving cell and the serving cell in the same system neighboring cell can be determined, and the collaborative work
  • the mode is a working mode of reducing co-frequency interference between the serving cell and a neighboring cell in the same system of the serving cell.
  • the serving cell is an LTE cell
  • the serving cell works in coordination with the neighboring cell in the same system.
  • the method can be determined according to CoMP technology.
  • the serving cell After the serving cell adopts the cooperative working mode, it negotiates interference detection rules with the N different system neighboring cells of the serving cell; the agreed interference detection rules have already been explained, and are not repeated here.
  • the communication system of the neighboring cell of the same system is the same as the communication system of the serving cell; for example, when the serving cell is an LTE cell, the serving cell is an LTE cell of the same system neighboring cell; when the serving cell is an NR cell The neighboring cell in the same system of the serving cell is an NR cell.
  • the serving cell and the serving cell's neighboring cell in the same system can be used respectively, as described in steps 401 to 403.
  • inter-cell interference suppression is performed.
  • the N different system neighboring cells of the serving cell are notified of the updated working frequency band of the serving cell.
  • the serving cell is notified of the updated working frequency band of a neighboring cell of a different cell of the serving cell; thus, when the base station corresponding to the serving cell determines the When the operating frequency bands of neighboring cells in different systems overlap, the implementation manners described in steps 401 to 403 may be adopted again to perform inter-cell interference suppression.
  • the serving cell is an LTE cell
  • the inter-system neighboring cell of the serving cell is an NR cell
  • FIG. 5 is a second flowchart of a method for suppressing inter-cell interference according to an embodiment of the present invention, as shown in FIG. 5,
  • the process may include: Step 501: Establish an interference coordination group.
  • the neighbor cell relationship between the LTE cell and the NR neighbor cell is determined.
  • the LTE cell may be at the center of multiple NR cells, and any two NR cells may be neighbor cell relationships with each other. .
  • the interference coordination group may include the LTE cell and all NR neighboring cells of the LTE cell.
  • the interference coordination group may include 1 LTE cell and m NR neighboring cells of the LTE cell, where m is an integer greater than or equal to 1.
  • the LTE cell and each NR neighboring cell can notify the other party of the working frequency band through data interaction.
  • the working frequency band of the LTE cell or the NR neighboring cell is updated (such as frequency point or bandwidth update), it is necessary to notify each other of the update in time.
  • Working frequency band When the working frequency band of the LTE cell or the NR neighboring cell is updated (such as frequency point or bandwidth update), it is necessary to notify each other of the update in time.
  • the LTE cell can also screen out NR neighboring cells whose working frequency bands overlap with their own operating frequency bands, and use the screened NR neighboring cells as potential interference cells; after screening out potential interference cells, the screened potential Interfering cells are divided into two groups of partial overlap and full overlap. Among them, the working frequency band of the NR cell and the working frequency band of the serving cell (LTE cell) in the partially overlapping group partially overlap (the two are not completely the same).
  • the working frequency band of the NR cell in a group overlaps with the working frequency band of the serving cell (LTE cell) (the two are completely the same); further, a partially overlapping group of NR cells and LTE cells can also be used to construct the first Interference coordination group; construct a second interference coordination group by using all overlapping sets of NR cells and LTE cells; then, you can achieve inter-cell interference suppression for the first interference coordination group and the second interference coordination group respectively according to subsequent steps That is, using each interference coordination group as a reference, co-frequency interference between an LTE cell and an NR neighboring cell in each interference coordination group is suppressed.
  • Step 502 The LTE cell and the NR neighboring cell agree on an interference detection rule.
  • the LTE cell can agree on the time period for interference detection (including the time period for sending services and the time period for keeping silent); for example, all three NR cells in an interference system group are As potential interference cells, the three NR cells are recorded as NR0, NR1, and NR2.
  • three non-overlapping time periods can be set: T0, T1, and T2.
  • NR0 sends Services
  • NR1 and NR2 remain silent (implemented only in the LTE operating frequency band).
  • you can set how the three NR cells work including when to send services and When to stay silent).
  • Step 503 The LTE cell sends an interference detection request to each NR neighboring cell.
  • the base station corresponding to the LTE cell may broadcast an interference detection request to the base station corresponding to each NR neighboring cell, or may send a corresponding interference detection request to the base station corresponding to each NR neighboring cell through a private message between X2 or IP.
  • step 503 has been described in detail in the foregoing embodiments of the present invention, and details are not described herein again.
  • Step 504 The NR neighboring cell works according to the interference detection request.
  • each NR neighboring cell that receives the interference detection request can guarantee the transmission of the service during the time period for transmitting the service according to the content of the interference detection request indication; and ensure the transmission of no service during the period for keeping the silence.
  • step 504 has been described in detail in the foregoing embodiments of the present invention, and is not repeated here.
  • Step 505 The LTE cell monitors the interference degree value of the own cell during the NR neighbor cell transmission service.
  • the LTE cell can monitor the interference situation of the cell in real time during the transmission service of the NR neighbor cell.
  • the interference level value of the cell can be used In this way, the LTE cell can collect the channel quality and interference level of the surrounding NR neighbors.
  • step 505 has been described in detail in the foregoing embodiments of the present invention, and details are not described herein again.
  • an embodiment of the present invention may establish an interaction rule (ie, an interference detection rule) between an LTE cell and an NR neighbor cell in an interference coordination group, so that the NR neighbor cell sends services at a specific time when the LTE cell starts detection, and cooperates in turn.
  • the LTE cell completes the interference detection.
  • Step 506 For each NR neighboring cell, determine whether the value of the interference level is greater than the preset threshold. If the value of the interference level is greater than the preset threshold, step 507 is performed; if the value of the interference level is less than or equal to the preset threshold, it can be ignored.
  • the NR neighboring cell corresponding to the value of the disturbance level less than or equal to the preset threshold that is, for the NR neighboring cell corresponding to the value of the disturbance level less than or equal to the preset threshold, the process may be directly terminated.
  • the LTE cell may determine that the interference detection process is ended after transmitting services in each NR neighboring cell.
  • the obtained interference value is sorted, and the highest interference value obtained is obtained.
  • the degree value is compared with a preset threshold. If the highest value of the obtained interference value is greater than the preset threshold, the corresponding NR cell can be used as the interfering NR neighbor cell. For the interfering NR neighbor cell, interference cancellation needs to be continued.
  • step 507 may be performed; if the highest value of the obtained interference value is less than or equal to a preset threshold, for each NR neighboring cell, the interference suppression processing is not performed, and the process may be directly ended.
  • the interference detection result can be applied to both CoMP technology and other technologies.
  • the LTE cell can obtain the value of the interference degree to realize adaptive modulation and coding of the LTE cell.
  • Step 507 Whether the total traffic of each UE in the LTE cell is greater than the traffic threshold. If the total traffic of each UE in the LTE cell is greater than the traffic threshold, step 508 is performed; if the total traffic of each UE in the LTE cell is less than or equal to the traffic Threshold, step 509 is performed.
  • Step 508 The LTE cell notifies the NR neighboring cell to reconfigure the operating frequency band.
  • the base station corresponding to the LTE cell may send a first interference suppression indication message to the base station corresponding to the NR neighboring cell to instruct the NR neighboring cell to reconfigure the operating frequency band.
  • Step 509 The LTE cell notifies the NR neighboring cell according to the situation of its own scheduling, and performs real-time interference cancellation.
  • the base station corresponding to the LTE cell can make a decision and select a processing method for interference cancellation according to its own scheduling situation.
  • the base station corresponding to the LTE cell may send a second interference suppression indication message to the base station corresponding to the NR neighbor cell, to instruct the NR neighbor cell to remain silent or to jointly send services with the LTE cell.
  • the second interference suppression indication message also carries the specific time-frequency domain location sent by the LTE cell resources (that is, the time-frequency resources of the LTE cell for service processing), and the NR neighboring cell may send the specific time-frequency domain according to the LTE cell resources. Position, perform silent processing; or, the NR neighbor cell may decide whether to perform joint data transmission according to its slot configuration and the specific time-frequency domain position sent by the LTE cell resource.
  • the base station corresponding to the LTE cell may also perform processing according to step 509 (not shown in FIG. 5).
  • step 508 or 509 the process may be ended.
  • the LTE cell may decide to choose to use the interference avoidance technology; specifically, the interference avoidance technology used in the LTE cell decision includes and is not limited to: interference coordination (NR neighbor cell maintenance when sending services through the LTE cell) The method of silently implementing), joint transmission, and reconfiguration of the working frequency band of the NR cell; the interference avoidance technologies such as the interference coordination and joint transmission described above can all be regarded as extended applications of CoMP technology, that is, CoMP technology can be applied by extension To reduce co-frequency interference between the 4G communication system and the 5G communication system.
  • the base station corresponding to the NR neighboring cell after the base station corresponding to the NR neighboring cell receives the second interference suppression indication message, it can cooperate with the LTE cell to implement interference cancellation to complete interference avoidance.
  • the second interference suppression indication message carries a collaboration request, and the collaboration request includes LTE cell estimated service information; the NR neighbor cell may estimate service duration based on the LTE cell estimated service information, and remain silent for an agreed time;
  • the second interference suppression indication message carries a joint transmission request, and the joint transmission request includes service data to be transmitted by the LTE cell. In this way, the NR neighbor cell performs joint transmission of service data with the LTE cell at an agreed time. .
  • the interference detection mechanism may also be started periodically, and after each time the interference detection mechanism is started, steps 502 to 508 are repeatedly performed.
  • an interference coordination group is established.
  • the 4G base station agrees with the 5G base station neighboring area to determine interference detection rules to achieve the 4G base station's neighbor to the 5G base station with co-frequency interference.
  • the interference identification and interactive adjustment in the area finally achieve the purpose of effectively using COMP technology to complete the interference detection and elimination when the LTE and NR are networked together.
  • the interference to the serving cell supports the interference cooperation between the 4G communication system and the 5G communication system, and reduces the level of co-frequency interference between different systems.
  • the serving cell is an LTE cell, and the LTE cell is recorded as Cell-LTE-0; the three NR neighboring cells of the serving cell are recorded as Cell-NR-0, Cell-NR-1, and Cell-NR, respectively. -2; among them, the operating frequency bands of Cell-LTE-0 and Cell-NR-1 overlap, the operating frequency bands of Cell-LTE-0 and Cell-NR-2 overlap, and Cell-LTE-0 and Cell-NR-3 There are no overlapping operating frequency bands.
  • the start time of sending services for Cell-NR-0, Cell-NR-1, and Cell-NR-2 is 1:00, 1:05, and 1:10, respectively.
  • Cell-NR -0, Cell-NR-1, and Cell-NR-2 send services for 1 minute in duration.
  • Cell-LTE-0, Cell-NR-0, Cell-NR-1, and Cell-NR-2 can form an interference cooperation group; at this time, in an example, the interference detection timing can be started
  • the interference detection timer is started, which is used to determine a time period during which NR neighbor cells send services or remain silent based on an agreed interference detection rule.
  • Cell-LTE-0 sends its own operating frequency band to Cell-NR-0, Cell-NR-1, and Cell-NR-2 through notification.
  • Cell-NR-0 saves the received operating frequency band of Cell-LTE-0 and responds to the operating frequency band of Cell-LTE-0's own cell
  • Cell-NR-1 saves the received operating frequency band of Cell-LTE-0, and Reply to the working frequency band of Cell-LTE-0's own cell
  • Cell-NR-2 saves the received working frequency band of Cell-LTE-0, and reply to the working frequency band of Cell-LTE-0's own cell.
  • Cell-LTE-0 After receiving replies from Cell-NR-0, Cell-NR-1, and Cell-NR-2, Cell-LTE-0 saves the operating frequency bands of Cell-NR-0, Cell-NR-1, and Cell-NR-2, respectively. .
  • Cell-LTE-0 selects Cell-NR-1 and Cell-NR-2 with overlapping bandwidth, and uses Cell-NR-1 and Cell-NR-2 as candidate interference cells; Cell-LTE-0 as candidate interference
  • the cells Cell-NR-1 and Cell-NR-2 establish an index table.
  • Cell-NR-1 and Cell-NR-2 are named NR1 and NR2, respectively.
  • Cell-LTE-0 agrees with the Cell-NR-1 and Cell-NR-2 interference detection rules according to the above-mentioned rules configured in the background.
  • Cell-LTE-0 sends the first interference detection to Cell-NR-1.
  • Request the first interference detection request indication: Cell-NR-1 sends the service from 1:00 to 1:01, and remains silent from 1:05 to 1:06;
  • Cell-LTE-0 sends the first to Cell-NR-2.
  • 2 interference detection request indicates: Cell-NR-2 keeps silent from 1:00 to 1:01, and sends the service from 1:05 to 1:06.
  • Cell-NR-1 saves the first interference detection request after receiving the first interference detection request, and performs scheduling adjustment according to the first interference detection request;
  • Cell-NR-2 saves the second interference after receiving the second interference detection request Probe request, and schedule adjustment according to the second interference probe request.
  • Cell-LTE-0 starts interference detection on Cell-NR-1 according to the agreed interference detection rules.
  • the NR cell Cell-NR-1 has scheduling services at 1:00 and continues. The time needs to be greater than or equal to 1 minute; the NR cell Cell-NR-2 has a schedule to remain silent at 1:00, and the duration needs to be greater than or equal to 1 minute.
  • the The interference value is the NI measurement value.
  • the NI measurement value of Cell-LTE-0 is recorded as NI1; the NR cell Cell-NR-1 may or may not end the service; the NR cell Cell-NR-2 ends the silence. , For normal business scheduling.
  • NR cell Cell-NR-1 has a schedule to stay silent at 1:05 and continue. The time needs to be greater than or equal to 1 minute; the NR cell Cell-NR-2 has a scheduling service at 1:05, and the duration needs to be greater than or equal to 1 minute.
  • Cell-LTE-0 completes the interference detection on NR2, that is, it completes the detection of the value of the interference level of Cell-LTE-0 while the NR2 service is in progress.
  • the cell-LTE-0 is affected by The interference value is the NI measurement value.
  • the NI measurement value of Cell-LTE-0 is recorded as NI2; the NR cell Cell-NR-1 ends the silence and performs normal service scheduling; the NR cell Cell-NR-2 can end the service. It is not necessary to end the business.
  • Cell-LTE-0 determines whether the total traffic of the UE in Cell-LTE-0 is greater than the traffic threshold. If the total traffic of the UE in Cell-LTE-0 is greater than the traffic threshold, it sends a reconfiguration to Cell-NR-2. Notification of BPW; Cell-NR-2 determines the feasibility of adjusting the reconfiguration of BPW after receiving the notification of reconfiguration of BPW; if it is possible to reconfigure BPW, reply to Cell-LTE-0 to confirm the successful reconfiguration of the operating frequency band, and At the next transmission interval. (Transmission Time Interval, TTI) takes effect; if the BPW cannot be reconfigured, a confirmation message is returned to Cell-LTE-0 that the reconfiguration of the operating frequency band fails.
  • TTI Transmission Time Interval
  • Cell-LTE-0 If Cell-LTE-0 receives a confirmation message that Cell-NR-2 successfully reconfigures the operating frequency band, it can restart the interference detection timer, and then end the process.
  • the Cell-LTE-0 If the total traffic of the UE in Cell-LTE-0 is less than or equal to the traffic threshold, or if Cell-LTE-0 receives a confirmation message that Cell-NR-2 fails to reconfigure the operating frequency band, then Cell-LTE-0 In the case of internal scheduling, the Cell-NR-2 neighbor cell is notified to perform real-time interference cancellation. The specific implementation manner has been described in step 509, and is not repeated here.
  • the Cell-NR-2 receives the second interference suppression indication message from the UE, it may work according to the content indicated by the second interference suppression indication message.
  • the specific implementation manners have been described in the foregoing embodiments, and are not repeated here.
  • An inter-cell interference suppression method provided by an embodiment of the present invention is applied to a base station corresponding to a serving cell, and the method may include: according to an interference detection rule agreed with the N different system neighboring cells of the serving cell, The serving cell performs interference detection; wherein N is greater than or equal to 1; an interference suppression decision is generated according to the interference detection result; the interference suppression decision is used to indicate: reducing the neighboring system of the serving cell to the serving cell caused by the neighboring cell Co-frequency interference mode; performing interference removal processing based on the interference suppression decision.
  • the agreed interference detection rule includes: when i is 1 to N, respectively, sending an i-th interference detection request to a base station corresponding to the i-th cell in the N neighboring cells of the different systems.
  • the i-th interference detection request is used to indicate a time period for transmitting services of the i-th cell in the N neighboring cells of the different systems; Interference detection.
  • the i-th interference detection request is further used to indicate a period of time during which the i-th cell in the neighbors of the N different systems is kept silent; the N The time period for keeping the i-th cell in the neighboring cells of the different systems to be silent includes the time periods for sending services of other cells in the N neighboring cells of the different systems.
  • the performing interference detection on the serving cell includes detecting a value of a degree of interference, where the value of the degree of interference is used to indicate a degree of interference to the serving cell.
  • the detecting the interference level value includes: obtaining an NI measurement value corresponding to the serving cell or a measurement event reported by a UE in the serving cell, and determining the interference level according to the acquired NI measurement value or measurement event. Disturbance value.
  • the generating an interference suppression decision according to an interference detection result includes:
  • a cell requiring interference suppression is determined; and for the cell needing interference suppression, an interference suppression decision is generated.
  • the performing interference detection on the serving cell includes: detecting a value of a degree of interference, where the value of the degree of interference is used to indicate a degree of interference to the serving cell; accordingly, the according to As a result of interference detection, determining the cells that need interference suppression among the N heterogeneous neighboring cells of the serving cell includes: when the value of the interference level is greater than a preset threshold, the N heterogeneous systems of the serving cell In the neighboring cell, a cell that sends a service when detecting the value of the interference degree is determined as a cell that needs to perform interference suppression.
  • the performing interference removal processing based on the interference suppression decision includes: when the total traffic of each UE in the serving cell is greater than a traffic threshold, corresponding to at least one of the cells in need of interference suppression
  • the base station sends a first interference suppression indication message, the first interference suppression indication message is used to instruct the corresponding cell to reconfigure the operating frequency band; when the total traffic of each UE in the serving cell is less than or equal to the traffic threshold, or the serving cell
  • sending a second interference suppression indication message to a base station corresponding to at least one of the cells requiring interference suppression; the second interference suppression indication The message is used to instruct the corresponding cell to remain silent at an agreed time, or to jointly send services with the serving cell at an agreed time.
  • the cooperative working method is to reduce A working mode of co-frequency interference between the serving cell and a neighboring cell in a same system of the serving cell; after the serving cell adopts the cooperative working method, an interference detection rule is agreed with the N different system neighboring cells of the serving cell .
  • the inter-system neighboring cell of the serving cell when the serving cell is an LTE cell, the inter-system neighboring cell of the serving cell is an NR cell; when the serving cell is an NR cell, the inter-system neighboring cell of the serving cell is an LTE cell.
  • the base stations corresponding to the N different system neighboring cells of the serving cell are notified of the updated working frequency band of the serving cell.
  • An inter-cell interference suppression method is applied to a base station corresponding to a neighboring cell in a different system of a serving cell.
  • the method includes: receiving an interference detection request, where the interference detection request is used to instruct a cell to send A time period of a service; sending a service in a corresponding time period according to the interference detection request; receiving a first interference suppression indication message or a second interference suppression indication message, wherein the first interference suppression indication message is used to instruct a cell reconfiguration Working frequency band, the second interference suppression indication message is used to instruct a cell to remain silent at an agreed time, or to jointly send services with the serving cell at an agreed time; according to the first interference suppression indication message, restart Configure a working frequency band of the cell; or keep silent for an agreed time according to the second interference suppression indication message; or perform joint transmission of services with the serving cell according to the second interference suppression indication message.
  • the interference detection request is further used to indicate a period of time during which the cell remains silent; accordingly, the method further includes: maintaining the silence in the corresponding time period according to the interference detection request.
  • a confirmation message that the reconfiguration of the working frequency band is successful is sent to the serving cell; after the reconfiguration of the working frequency band of the cell fails, sending the reconfiguration of the working frequency band to the serving cell fails Confirmation message.
  • the serving cell when the operating frequency band of the inter-system neighboring cell of the serving cell is updated, the serving cell is notified of the updated operating frequency band of the inter-system neighboring cell of the serving cell.
  • a sixth embodiment of the present invention provides an inter-cell interference suppression device, which is applied to a base station corresponding to a serving cell.
  • FIG. 6 is a schematic structural diagram of an inter-cell interference suppression device according to an embodiment of the present invention.
  • the device includes a detection module 601, a generation module 602, and a de-interference module 603.
  • the detection module 601 uses Performing interference detection on the serving cell according to interference detection rules agreed with the N different system neighboring cells of the serving cell; where N is greater than or equal to 1;
  • a generating module 602 is configured to generate interference according to the interference detection result Suppression decision;
  • the interference suppression decision is used to indicate: a way to reduce co-frequency interference caused by the neighboring cell of a different cell of the serving cell to the serving cell; and an interference rejection module 603 for removing interference based on the interference suppression decision deal with.
  • the agreed interference detection rule includes: when i is 1 to N, respectively, sending an i-th interference detection request to a base station corresponding to the i-th cell in the N neighboring cells of the different systems.
  • the i-th interference detection request is used to indicate a time period for transmitting services of an i-th cell in the N neighboring cells of the different systems; a time period for transmitting services of each cell in the N neighboring cells of the different systems Performing interference detection on the serving cell.
  • the i-th interference detection request is further used to indicate a period of time during which the i-th cell in the neighbors of the N different systems is kept silent; the N The time period for keeping the i-th cell in the neighboring cells of the different systems to be silent includes the time periods for sending services of other cells in the N neighboring cells of the different systems.
  • the detection module 601 is specifically configured to detect a value of a degree of interference, where the value of the degree of interference is used to indicate a degree of interference experienced by the serving cell.
  • the detection module 601 is specifically configured to obtain an NI measurement value corresponding to the serving cell or a measurement event reported by a UE in the serving cell, and determine the interference according to the acquired NI measurement value or measurement event. Degree value.
  • the generating module 602 is specifically configured to determine, according to the interference detection result, among the N heterogeneous system neighboring cells of the serving cell, a cell that needs to perform interference suppression; Cell, generating interference suppression decisions.
  • the generating module 602 is specifically configured to send a service when detecting the value of the interference level in the N neighboring cells of the serving cell when the value of the interference level is greater than a preset threshold.
  • the cell is determined to be a cell requiring interference suppression.
  • the interference removal module 603 is specifically configured to send a first to a base station corresponding to at least one of the cells requiring interference suppression when the total traffic of each UE in the serving cell is greater than a traffic threshold.
  • An interference suppression indication message where the first interference suppression indication message is used to instruct the corresponding cell to reconfigure the operating frequency band; when the total traffic of each UE in the serving cell is less than or equal to the traffic threshold, or the serving cell receives the serving cell
  • the second interference suppression indication message is sent to the base station corresponding to at least one of the cells requiring interference suppression; the second interference suppression indication message is used to indicate The corresponding cell remains silent at an agreed time, or performs joint transmission of services with the serving cell at an agreed time.
  • the detection module 601 is further configured to determine the coordination between the serving cell and the serving cell in the same system when there is an overlap in the operating frequency bands of the serving cell and the serving cell's neighboring system in the same system.
  • a working mode, the cooperative working mode is a working mode of reducing co-frequency interference between the serving cell and a neighboring cell in a same system with the serving cell; and after the serving cell adopts the cooperative working method, it works with the serving cell Neighboring cells of N heterogeneous systems agree on interference detection rules.
  • the inter-system neighboring cell of the serving cell when the serving cell is an LTE cell, the inter-system neighboring cell of the serving cell is an NR cell; when the serving cell is an NR cell, the inter-system neighboring cell of the serving cell is an LTE cell.
  • the detecting module 601 is further configured to notify the base stations corresponding to the N different system neighboring cells of the serving cell when the working frequency band of the serving cell is updated. Working frequency.
  • the detection module 601, the generation module 602, and the interference rejection module 603 can be implemented by a central processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), and a digital signal processor ( Digital Signal Processor (DSP), or Field Programmable Gate Array (FPGA).
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the functional modules in this embodiment may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional modules.
  • the integrated unit is implemented in the form of a software functional module and is not sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of this embodiment is essentially or It is said that a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes several instructions for making a computer device (can It is a personal computer, a server, or a network device) or a processor (processor) to perform all or part of the steps of the method described in this embodiment.
  • the foregoing storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or optical disks and other media that can store program codes.
  • the computer program instructions corresponding to the inter-cell interference suppression method in this embodiment may be stored on a storage medium such as an optical disc, a hard disk, a U disk, and the like.
  • a storage medium such as an optical disc, a hard disk, a U disk, and the like.
  • FIG. 7 it illustrates an inter-cell interference suppression device 70 according to an embodiment of the present invention.
  • the device is located in a base station corresponding to a serving cell.
  • the device may include: a first memory. 71.
  • the first processor 72 is configured to execute a computer program stored in the memory to implement the steps of any one of the methods for suppressing inter-cell interference in the foregoing embodiments.
  • the first memory 71 may be a volatile memory (for example, RAM), or a non-volatile memory (for example, ROM, flash memory, hard disk, etc.). Hard Disk Drive (HDD) or Solid State Drive (SSD); or a combination of the above-mentioned types of memory, and provides instructions and data to the first processor 72.
  • RAM volatile memory
  • non-volatile memory for example, ROM, flash memory, hard disk, etc.
  • HDD Hard Disk Drive
  • SSD Solid State Drive
  • the first processor 72 may be an Application Specific Integrated Circuit (ASIC), a DSP, a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), an FPGA, At least one of a CPU, a controller, a microcontroller, and a microprocessor. It can be understood that, for different devices, the electronic device used to implement the function of the first processor may be other, which is not specifically limited in the embodiment of the present invention.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA FPGA
  • a seventh embodiment of the present invention provides an inter-cell interference suppression device, which is applied to a base station corresponding to a neighboring cell in a different system of a serving cell.
  • FIG. 8 is a schematic structural diagram of another inter-cell interference suppression device according to an embodiment of the present invention.
  • the device includes a first receiving module 801, a first processing module 802, a second receiving module 803, and a first receiving module.
  • the interference detection request is further used to indicate a period during which the cell remains silent; accordingly, the first processing module 802 is further configured to remain silent for a corresponding period of time according to the interference detection request.
  • the second processing module 804 is further configured to send a confirmation message that the reconfiguration of the working frequency band is successful to the serving cell after the reconfiguration of the working frequency band of the cell is successful;
  • the serving cell sends a confirmation message that the reconfiguration of the working frequency band fails.
  • the first processing module 802 is further configured to notify the serving cell of the updated neighboring cell of the different cell of the serving cell when the working frequency band of the neighboring cell of the different cell of the serving cell is updated. Working frequency.
  • first receiving module 801, first processing module 802, second receiving module 803, and second processing module 804 can all be implemented by a CPU, MPU, DSP, FPGA, etc. located in a terminal.
  • the functional modules in this embodiment may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional modules.
  • the integrated unit is implemented in the form of a software functional module and is not sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of this embodiment is essentially or It is said that a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes several instructions for making a computer device (can It is a personal computer, a server, or a network device) or a processor (processor) to perform all or part of the steps of the method described in this embodiment.
  • the foregoing storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or optical disks and other media that can store program codes.
  • the computer program instructions corresponding to the inter-cell interference suppression method in this embodiment may be stored on a storage medium such as an optical disc, a hard disk, a U disk, and the like.
  • a storage medium such as an optical disc, a hard disk, a U disk, and the like.
  • FIG. 9 it illustrates another inter-cell interference suppression device 90 according to an embodiment of the present invention.
  • the device is located in a base station corresponding to a serving cell.
  • the device may include: a second A memory 91, a second processor 92, and a second bus 93; wherein the second bus 93 is used to connect the second memory 91, the second processor 92, and mutual communication between these devices; the second
  • the memory 91 is configured to store a computer program and data; and the second processor 92 is configured to execute a computer program stored in the memory to implement steps of any one of the inter-cell interference suppression methods in the foregoing embodiments.
  • the above-mentioned second memory 91 may be a volatile memory, such as a RAM; or a non-volatile memory, such as a ROM, a flash memory, an HDD, or an SSD;
  • the processor 92 provides instructions and data.
  • the second processor 92 may be at least one of an application-specific integrated circuit ASIC, a DSP, a DSPD, a PLD, an FPGA, a CPU, a controller, a microcontroller, and a microprocessor. It can be understood that, for different devices, the electronic device for realizing the function of the second processor may be other, which is not specifically limited in the embodiment of the present invention.
  • the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk memory, optical memory, etc.) containing computer-usable program code.
  • a computer-usable storage media including, but not limited to, magnetic disk memory, optical memory, etc.
  • An embodiment of the present invention provides a computer program product.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, To cause the computer to execute the method in any of the method embodiments described above.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, selon certains modes de réalisation, un procédé, un dispositif et un appareil d'atténuation de brouillage inter-cellules, ainsi qu'un support de stockage informatique. Le procédé comporte les étapes consistant à: effectuer une détection de brouillage sur une cellule de desserte selon une règle de détection de brouillage convenue avec N zones avoisinantes de système distinct de la cellule de desserte; puis générer une décision d'atténuation de brouillage selon le résultat d'atténuation de brouillage, la décision d'atténuation de brouillage étant utilisée pour représenter un mode de brouillage de même fréquence causé par les zones avoisinantes de système distinct de la cellule de desserte à la cellule de desserte; et enfin, effectuer un traitement de suppression de brouillage d'après la décision d'atténuation de brouillage.
PCT/CN2019/081228 2018-06-13 2019-04-03 Procédé, dispositif et appareil d'atténuation de brouillage inter-cellules, et support de stockage informatique Ceased WO2019237801A1 (fr)

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CN201810605847.0A CN110602008B (zh) 2018-06-13 2018-06-13 一种小区间干扰抑制方法、设备、装置和计算机存储介质

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114665996A (zh) * 2022-02-24 2022-06-24 深圳市佳贤通信设备有限公司 一种适用于数字室分系统的同频邻区动态识别方法
CN115278766A (zh) * 2022-07-06 2022-11-01 中国电信股份有限公司 边界干扰降低方法、装置、电子设备及存储介质
CN116405128A (zh) * 2022-01-06 2023-07-07 联发科技（新加坡）私人有限公司 新无线电系统的干扰消除方案
EP4236218A4 (fr) * 2020-12-04 2023-12-06 Huawei Technologies Co., Ltd. Procédé anti-interférence pour réseau nouvelle radio

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114698011B (zh) * 2020-12-28 2023-08-22 成都鼎桥通信技术有限公司 小站间防干扰方法和装置
CN115087031A (zh) * 2021-03-16 2022-09-20 中国电信股份有限公司 用于消除干扰的方法、基站和通信系统
CN119893570A (zh) * 2021-03-30 2025-04-25 中国电信股份有限公司 信息传输方法、基站、终端和通信系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611525A (zh) * 2011-12-26 2012-07-25 新邮通信设备有限公司 Tdd通信系统中的子帧交错干扰测量方法
CN105517044A (zh) * 2015-11-25 2016-04-20 中国联合网络通信集团有限公司 一种干扰协调的方法及系统
WO2018040894A1 (fr) * 2016-08-31 2018-03-08 中国移动通信有限公司研究院 Procédé de traitement d'interférence, station de base, et support de stockage informatique
CN107950056A (zh) * 2015-10-06 2018-04-20 英特尔Ip公司 使用3gpp无线电接入技术的接入系统之间的双无线电操作

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101252775B (zh) * 2008-04-02 2013-06-05 中兴通讯股份有限公司 一种时分双工系统物理随机接入信道参数配置及指示方法
US8417252B2 (en) * 2008-10-24 2013-04-09 Qualcomm Incorporated Method and apparatus for interference reporting in a N-MIMO communication system
CN102550092B (zh) * 2009-08-21 2015-08-19 瑞典爱立信有限公司 用于减少定位测量期间干扰的方法和设备
CN103210593B (zh) * 2010-11-17 2015-04-08 华为技术有限公司 小区间干扰协调自组织网络的方法和装置
KR101196811B1 (ko) * 2011-03-16 2012-11-06 서울대학교산학협력단 동적 셀간간섭 회피를 위한 방법 및 이를 위한 장치
CN103002452B (zh) * 2011-09-14 2016-08-10 华为技术有限公司 用于降低小区间信号干扰的方法、基站及无线通信系统
CN104982086B (zh) * 2013-03-28 2019-01-08 华为技术有限公司 异系统小区间同频干扰协调的方法及基站
US9225463B2 (en) * 2014-01-14 2015-12-29 Lg Electronics Inc. Method and apparatus for cancelling interference

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611525A (zh) * 2011-12-26 2012-07-25 新邮通信设备有限公司 Tdd通信系统中的子帧交错干扰测量方法
CN107950056A (zh) * 2015-10-06 2018-04-20 英特尔Ip公司 使用3gpp无线电接入技术的接入系统之间的双无线电操作
CN105517044A (zh) * 2015-11-25 2016-04-20 中国联合网络通信集团有限公司 一种干扰协调的方法及系统
WO2018040894A1 (fr) * 2016-08-31 2018-03-08 中国移动通信有限公司研究院 Procédé de traitement d'interférence, station de base, et support de stockage informatique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4236218A4 (fr) * 2020-12-04 2023-12-06 Huawei Technologies Co., Ltd. Procédé anti-interférence pour réseau nouvelle radio
CN116405128A (zh) * 2022-01-06 2023-07-07 联发科技（新加坡）私人有限公司 新无线电系统的干扰消除方案
CN114665996A (zh) * 2022-02-24 2022-06-24 深圳市佳贤通信设备有限公司 一种适用于数字室分系统的同频邻区动态识别方法
CN114665996B (zh) * 2022-02-24 2024-02-06 深圳市佳贤通信科技股份有限公司 一种适用于数字室分系统的同频邻区动态识别方法
CN115278766A (zh) * 2022-07-06 2022-11-01 中国电信股份有限公司 边界干扰降低方法、装置、电子设备及存储介质

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