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WO2018137444A1 - 一种消除干扰的方法和装置以及存储介质 - Google Patents

一种消除干扰的方法和装置以及存储介质 Download PDF

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Publication number
WO2018137444A1
WO2018137444A1 PCT/CN2017/117124 CN2017117124W WO2018137444A1 WO 2018137444 A1 WO2018137444 A1 WO 2018137444A1 CN 2017117124 W CN2017117124 W CN 2017117124W WO 2018137444 A1 WO2018137444 A1 WO 2018137444A1
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Prior art keywords
cell
interference
neighboring cell
downlink
uplink
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French (fr)
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徐汉青
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0063—Interference mitigation or co-ordination of multipath interference, e.g. Rake receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a method and apparatus for eliminating interference and a storage medium.
  • the LTE system supports performing FDD (Frequency Division Duplexing) operations on a pair of spectrums, and also supports performing TDD (Time Division Duplexing) operations on an unpaired carrier.
  • FDD Frequency Division Duplexing
  • TDD Time Division Duplexing
  • eIMTA enhanced interference mitigation and traffic adapatation
  • Dynamic TDD also known as Flexible Duplexing or Duplexing Flexibility, refers to uplink or downlink carriers that can be on unpaired spectrum or in paired spectrum.
  • the uplink or downlink transmission direction is dynamically or semi-dynamically changed.
  • dynamic TDD operations can support sub-frame levels, or slot levels, and even more dynamic transmit direction changes.
  • the dynamic TDD does not limit the configuration mode in which only a limited number of uplink and downlink subframe allocations are used, and the uplink and downlink transmissions can be scheduled more flexibly.
  • the uplink transmission of the user terminal (UE2-1) in the second cell causes cross-link interference to the downlink reception of the user terminal (UE1-1) in the first cell (UE-to- UE (terminal-to-terminal interference); on the other hand, as shown in FIG. 1-b, the downlink transmission of the base station (gNB2) of the second cell causes cross-linking to the uplink reception of the base station (gNB1) of the first cell. Interference (gNB-to-gNB (base station to base station) interference).
  • the network side node may include a TRP (Transmission/Reception Point), an AP (Access Point, an access point), and the like in addition to the GNB (The Next Generation Node B).
  • the dynamic cross-link interference is different from the previous same-link interference. It has the characteristics of serious interference, large influence, fast change of direction, and no mature mechanism to solve. How to solve the cross-link interference problem, there is no good solution.
  • the technical problem to be solved by the present disclosure is to provide a method and apparatus for eliminating interference, which can solve the problem of cross-link interference.
  • Embodiments of the present disclosure provide a method for eliminating interference, including:
  • Determining a primary sub-band and a secondary sub-band of a cell setting a primary sub-band and a secondary sub-band of one cell to different sub-bands, and setting a primary sub-band of one cell and a primary sub-band of a neighboring cell of the cell to different sub-bands;
  • the primary sub-band and/or the secondary sub-band of the cell are used for transmission in the downlink direction of the cell, and the primary sub-band of the cell is used for transmission in the uplink direction of the cell.
  • the embodiment of the present disclosure further provides an apparatus for eliminating interference, including:
  • a subband setting module configured to determine a primary subband and a secondary subband of a cell: setting a primary subband and a secondary subband of one cell to different subbands, and a primary subband of one cell and a primary subband of a neighboring cell of the cell Set to a different subband;
  • the transmission control module is configured to transmit using the primary subband and/or the secondary subband of the cell in the downlink direction of the cell, and transmit the primary subband of the cell in the uplink direction of the cell.
  • Embodiments of the present disclosure also provide a method for eliminating interference, including:
  • the base station acquires a measurement quantity for measuring a cross-link interference level
  • the base station interacts with the neighboring cell base station to measure the measured amount of cross-link interference level.
  • the embodiment of the present disclosure further provides an apparatus for eliminating interference, which is applied to a base station, and includes:
  • a measurement quantity acquisition module configured to acquire a measurement quantity for measuring a cross-link interference level
  • the measurement quantity interaction module is configured to interact with the neighboring cell base station to measure the measurement amount of the cross-link interference level.
  • Embodiments of the present disclosure also provide a storage medium having stored thereon a computer program, wherein the program is executed by the processor to implement the following steps:
  • Determining a primary sub-band and a secondary sub-band of a cell setting a primary sub-band and a secondary sub-band of one cell to different sub-bands, and setting a primary sub-band of one cell and a primary sub-band of a neighboring cell of the cell to different sub-bands;
  • the primary sub-band and/or the secondary sub-band of the cell are used for transmission in the downlink direction of the cell, and the primary sub-band of the cell is used for transmission in the uplink direction of the cell.
  • Embodiments of the present disclosure also provide a storage medium having stored thereon a computer program, wherein the program is executed by the processor to implement the following steps:
  • the base station acquires a measurement quantity for measuring a cross-link interference level
  • the base station interacts with the neighboring cell base station to measure the measured amount of cross-link interference level.
  • a method and an apparatus for eliminating interference determine a primary sub-band and a secondary sub-band of a cell: setting a primary sub-band and a secondary sub-band of one cell into different sub-bands, and one The primary subband of the cell and the primary subband of the neighboring cell of the cell are set to different subbands; the primary subband and/or the secondary of the cell are used in the downlink direction of the cell.
  • the band transmits, and the primary sub-band of the cell is used for transmission in the uplink direction of the cell.
  • Embodiments of the present disclosure are capable of solving cross-link interference problems.
  • FIG. 1-a is a schematic diagram of cross-link interference in the related art (end-to-end interference);
  • FIG. 1-b is a schematic diagram of cross-link interference in a related art (base station to base station interference);
  • FIG. 2 is a flowchart of a method for eliminating interference according to Embodiment 1 of the present disclosure
  • Example 3 is a schematic diagram of subband division and power setting of three neighboring cells in Example 1 of the present disclosure
  • 4-1 is a schematic diagram of eliminating cross-link interference (base station to base station) in Example 1 of the present disclosure
  • 4-2 is a schematic diagram of eliminating cross-link interference (terminal-to-terminal) in Example 1 of the present disclosure
  • FIG. 5 is a schematic diagram of an apparatus for eliminating interference according to Embodiment 2 of the present disclosure.
  • FIG. 6 is a flowchart of a method for eliminating interference according to Embodiment 3 of the present disclosure.
  • FIG. 7 is a schematic diagram of an apparatus for eliminating interference according to Embodiment 4 of the present disclosure.
  • the network side uses a base station (gNB) as an example, and the method applied to the base station can also be applied to a cell, a small cell, a transmission and reception point (TRP), and an access point.
  • Network-side deployment equipment such as (AP).
  • the terminal side uses UE (User Equipment) as an example.
  • the method applied to the UE can also be applied to an Internet of Things (IoT) device, an MTC (Machine Type Communication) device, and a V2X (Vehicle to Vehicle, car to car) equipment.
  • IoT Internet of Things
  • MTC Machine Type Communication
  • V2X Vehicle to Vehicle, car to car
  • the uplink/downlink interference of a cell to the downlink of the neighboring cell is equivalent to the downlink interference received by the cell to the neighboring cell UE, that is, the interfered party is the UE of the neighboring cell;
  • the interference to the uplink of the neighboring cell is equivalent to the uplink interference received by the cell to the neighboring cell, that is, the interferer is the base station of the neighboring cell.
  • an embodiment of the present disclosure provides a method for eliminating interference, including:
  • Step S210 Determine a primary sub-band and a secondary sub-band of a cell: set a primary sub-band and a secondary sub-band of one cell to different sub-bands, and set a primary sub-band of one cell and a primary sub-band of a neighboring cell of the cell to be different. Subband;
  • Step S220 The primary sub-band and/or the secondary sub-band of the cell are used for transmission in the downlink direction of the cell, and the primary sub-band of the cell is used for transmission in the uplink direction of the cell.
  • the determining the primary sub-band and the secondary sub-band of the cell includes:
  • each RB in one subband is continuous or discontinuous; different subbands contain the same or different numbers of RBs;
  • the primary sub-band of a cell is a sub-band
  • the sub-band of the cell is a sub-band of the cell bandwidth or carrier bandwidth except the primary sub-band; for example, a sub-band division of a cell
  • main sub-band 1, sub-sub-band 1, sub-sub-band 2, ... sub-band n For: main sub-band 1, sub-sub-band 1, sub-sub-band 2, ... sub-band n;
  • determining the number and range of subbands may be determined by using any one of the following methods: determined by a protocol; uniformly determined by a base station or a macro cell; and determined by mutual coordination between adjacent cells;
  • determining the primary subband and the secondary subband of the cell may be determined by using any one of the following methods:
  • determining the number and range of sub-bands, and the primary sub-band and the auxiliary sub-band of the cell including determining by using any one of the following a-c:
  • the operator/protocol/base station divides the system bandwidth into three sub-bands in advance, but for a particular cell, which of the three sub-bands is the primary sub-band is not limited.
  • the primary subband may be subsequently determined by mutual coordination between neighboring cells;
  • the operator/protocol/base station divides the system bandwidth into three sub-bands in advance: sub-band 1, sub-band 2, and sub-band 3.
  • Cell 1 uses subband 1 as the primary subband
  • cell 2 uses subband 2 as the primary subband
  • cell 3 uses subband 3 as the primary subband;
  • the sending by using the primary sub-band and/or the secondary sub-band of the cell in the downlink direction of the cell, includes:
  • the downlink communication between the base station and the cell edge UE is sent by using a primary sub-band, and the transmission power is greater than or equal to a high power threshold;
  • the downlink communication of the base station to the cell center UE is transmitted by using the primary subband and/or the secondary subband; when the downlink communication of the base station to the cell center UE is transmitted on the secondary subband, the transmission power is less than or equal to the low power threshold.
  • the sub-band and power conditions used by the uplink or downlink of the cell are specifically described below:
  • the downlink communication between the base station and the cell center UE may be transmitted by using the primary subband and/or the secondary subband, and the downlink communication of the base station to the cell edge UE is preferentially transmitted by using the primary subband; and the uplink communication of the UE (including the cell center UE and the cell edge UE) in the cell Priority is given to the primary subband to send.
  • the protection bandwidth can be set between sub-bands as needed to prevent adjacent channel interference.
  • the DL and UL of the same cell are not simultaneously transmitted, and the protection bandwidth may not be set.
  • There is a demand setting protection bandwidth between different cells but because there is a path loss between cells, the protection bandwidth does not need to be too large.
  • Downlink communication from the base station to the cell edge UE is preferentially transmitted using the primary subband. At this time, when the downlink communication from the base station to the cell edge UE is transmitted on the primary subband, it is required to transmit with high power or set a high power threshold or a high power range.
  • the high-power transmission from the base station to the cell edge UE causes the downlink transmission of the base station to interfere with the uplink reception of the neighboring base station (provided that the downlink transmission and the uplink transmission use the same frequency band).
  • the downlink transmit power needs to cover the edge UE and can guarantee the performance of the edge UE.
  • the priority to use the primary subband to send contains several meanings:
  • the downlink communication from the base station to the cell edge UE can only be sent by using the primary subband;
  • the downlink communication from the base station to the cell edge UE is preferentially transmitted using the primary subband.
  • the load is light, or the number of edge UEs is small, it is preferred to send on the primary sub-band; when the load is too heavy, or the number of edge UEs is large, and the DL communication demand is large, it is preferably sent on the primary sub-band, and then use other helpers. Bring with; or
  • the downlink communication from the base station to the cell edge UE can use either the primary subband or the secondary subband.
  • downlink transmission is performed only on the primary sub-band.
  • the downlink communication from the base station to the cell center UE can be transmitted using the primary subband and/or the secondary subband.
  • the downlink communication of the base station to the cell center UE is transmitted on the secondary sub-band, it is required to transmit with low power or set a low power threshold or a low power range; when the downlink communication of the base station to the cell center UE is transmitted on the primary sub-band
  • the power is not limited to high power or low power. Preferably, it is required to transmit at low power, or to set a low power threshold or a low power range.
  • the "low power/low power threshold/low power range” is a “high power/high power threshold/high power range” for downlink communication from a base station to a cell edge UE.
  • the downlink power of the cell edge UE is set to power A
  • the downlink power of the cell center UE is set to B.
  • the primary sub-band and/or the secondary sub-band transmission described herein does not mean that each UE's DL scheduling needs to cover two sub-bands, or only one sub-band. Rather, the primary subband and the secondary subband (that is, the full bandwidth) can be used for the cell center UE to transmit. Specifically, which subbands and even which RBs may depend on the channel condition, block size, or scheduling of the UE. happening.
  • the uplink communication of the UE in the cell is preferentially transmitted using the primary sub-band.
  • the intra-cell UE transmits the uplink on the primary sub-band, there is no restriction on the uplink transmission power of the UE. That is, the uplink power of the UE still depends on the uplink power control algorithm of the UE (eg, scheduling block size, path loss, open loop, etc.), but may not be affected by the subband attributes (primary subband, subband).
  • the uplink communication of the UE in the cell preferentially uses the primary subband transmission to include several meanings:
  • the uplink communication of the UE in the cell can only be sent by using the primary sub-band;
  • the uplink communication of the UE in the cell is preferentially transmitted using the primary sub-band.
  • the load is light, the number of UEs in the cell is small, and it is preferred to transmit on the primary sub-band; when the load is too heavy, or the number of UEs in the cell is large, and the UL communication demand is large, it is preferably sent on the primary sub-band, and then use other auxiliary Subband transmission; or
  • the uplink communication of the UE in the cell can use either the primary subband or the secondary subband.
  • downlink transmission is performed only on the primary sub-band.
  • the primary sub-band and/or the secondary sub-band of the cell are used for transmission in the downlink direction of the cell, and the primary sub-band of the cell is used for transmission in the uplink direction of the cell, including:
  • the interference situation of the cross-link interference between the target cell and the neighboring cell is determined, and the interference situation is exchanged between the target cell and the neighboring cell, and coordination processing for reducing interference is performed, including:
  • the interference level indication of the downlink interference of the neighboring cell received in the uplink direction of the target cell (such as CLI-UL-OI (CLI-Uplink-overload indicator)) is high interference or exceeds the pre- When the first threshold is set, at least one of the following processes is performed:
  • the target cell increases uplink transmit power
  • the neighboring cell of the target cell reduces downlink transmission power
  • the target cell uplink uses a primary subband for transmission
  • the neighboring cell of the target cell downlink uses the primary sub-band for transmission
  • the edge area of the neighboring cell of the target cell is downlinked by using a primary subband
  • the CLI-UL-OI is used to characterize the cross-link interference level received by a cell in the uplink, and the interfered cell (base station) measures the interference of the downlink of the neighboring cell to the uplink of the cell, which belongs to post-interference coordination.
  • the CLI-UL-OI characterizes the amount of interference of the interference level of the neighboring cell downlink channel experienced by each RB or each subband of the upstream bandwidth.
  • CLI-UL-OI can be divided into three levels: high interference, medium interference, and low interference; or two levels of high interference and low interference.
  • the CLI-UL-OI is measured by the interfered cell (base station) and notified to the neighboring cell, and the neighboring cell is expected to be coordinated.
  • the notification mode may be through a backhaul link (such as an X2 interface or a private interface) or an air interface (such as OTA signaling (Over the Air signaling)).
  • a backhaul link such as an X2 interface or a private interface
  • an air interface such as OTA signaling (Over the Air signaling)
  • the concept of subbands may be the same or different from the concept of the primary subband or the secondary subband described above. For example, another division manner is adopted, for example, several RBs are set as one sub-band, which is independent of the concept of the main sub-band or the sub-sub-band.
  • the uplink and downlink transmissions of the target cell and its neighboring cells in the initial stage are all transmitted using full bandwidth.
  • the target cell obtains the cross-link interference of the uplink in the neighboring cell through the measurement of the CLI-UL-OI. If the CLI-UL-OI is high or exceeds the preset threshold, the target cell uses the primary sub-band of the target cell for uplink (UL) transmission, and feeds back the result of the CLI-UL-OI or sub-band usage to the neighbor.
  • the neighboring area uses the primary sub-band of the neighboring area to perform downlink (DL) transmission to the edge UE. This reduces the cross-link interference of the downlink of the neighboring cell to the uplink of the target cell.
  • the interference situation of the cross-link interference between the target cell and the neighboring cell is determined, and the interference situation is exchanged between the target cell and the neighboring cell, and coordination processing for reducing interference is performed, including:
  • the interference level indication of the interference in the downlink direction of the neighboring cell in the uplink direction of the target cell (such as CLI-UL-HII (CLI-Uplink-high-interference indicator)) is high interference
  • CLI-UL-HII CLI-Uplink-high-interference indicator
  • the target cell reduces uplink transmit power
  • the neighboring cell of the target cell increases downlink transmit power
  • the target cell uplink uses a primary subband for transmission
  • the neighboring cell of the target cell downlink uses the primary sub-band for transmission
  • the edge area of the neighboring cell of the target cell is downlinked by using a primary subband
  • the CLI-UL-HII is used to characterize the possible interference level of a cell uplink to the neighboring cell downlink, and the interference-causing cell measures the interference of the UL-to-DL (the uplink of the current cell to the downlink of the neighboring cell), which belongs to the pre-interference pre-interference. coordination.
  • the CLI-UL-HII characterizes the possible interference level of the UE to the neighboring cell downlink for the entire bandwidth of the cell to be scheduled.
  • CLI-UL-HII can be divided into three levels: high interference, medium interference, and low interference; or divided into two levels: high interference and low interference.
  • the CLI-UL-HII is measured by the cell (base station) causing the interference and notified to the neighboring cell, and the neighboring cell is expected to be coordinated.
  • the notification mode may be through a backhaul link (such as an X2 interface or a private interface) or an air interface (such as OTA signaling (Over the Air signaling)).
  • Each RB or each subband corresponds to a value.
  • the concept of subbands may be the same or different from the concept of the primary subband or the secondary subband described above. For example, another division manner is adopted, for example, several RBs are set as one sub-band, which is independent of the concept of the main sub-band or the sub-sub-band.
  • the uplink and downlink transmissions of the target cell and its neighboring cells in the initial stage are all transmitted using full bandwidth.
  • the target cell obtains the downlink cross-link interference situation that the uplink may have in the neighboring cell through the measurement of the CLI-UL-HII. If the CLI-UL-HII is high-interference or exceeds the preset threshold, the target cell uses the primary sub-band of the target cell for uplink (UL) transmission, and feeds back the CLI-UL-HII result or sub-band usage to the neighbor.
  • the neighboring area uses the primary sub-band of the neighboring area to perform downlink (DL) transmission to the edge UE. This reduces the cross-link interference of the uplink of the target cell to the downlink of the neighboring cell.
  • the interference situation of the cross-link interference between the target cell and the neighboring cell is determined, and the interference situation is exchanged between the target cell and the neighboring cell, and coordination processing for reducing interference is performed, including:
  • the interference level indication of the uplink interference of the neighboring cell received in the downlink direction of the target cell (such as CLI-DL-OI (CLI-Downlink-overload indicator)) is high interference or exceeds pre-
  • CLI-DL-OI CLI-Downlink-overload indicator
  • the target cell increases downlink transmit power
  • the neighboring cell of the target cell reduces uplink transmit power
  • the target cell downlink uses a primary sub-band for transmission
  • the edge area of the target cell is downlinked using a primary sub-band for transmission
  • the neighboring cell of the target cell uplink uses the primary sub-band for transmission
  • the CLI-DL-OI is used to characterize the cross-link interference level received by a cell in the downlink, and the interfered cell measures the interference of the UL-to-DL (the neighboring cell uplink to the downlink of the local cell), which belongs to post-interference coordination.
  • the CLI-DL-OI characterizes the measurement of the interference level of the uplink channel of the neighboring cell experienced by each RB or each subband of the downlink bandwidth.
  • CLI-DL-OI can be divided into three levels: high interference, medium interference, and low interference; or two levels of high interference and low interference.
  • the CLI-DL-OI is measured by the interfered cell (base station or UE, preferably UE), and if the UE performs measurement, the UE needs to feed back the measurement amount to the base station.
  • the neighboring cell may be notified by the base station, and the neighboring cell is expected to give coordination.
  • the notification mode may be through a backhaul link (such as an X2 interface or a private interface) or an air interface (such as OTA signaling (Over the Air signaling)).
  • the concept of subbands may be the same or different from the concept of the primary subband or the secondary subband described above. For example, another division manner is adopted, for example, several RBs are set as one sub-band, which is independent of the concept of the main sub-band or the sub-sub-band.
  • the interference situation of the cross-link interference between the target cell and the neighboring cell is determined, and the interference situation is exchanged between the target cell and the neighboring cell, and coordination processing for reducing interference is performed, including:
  • the interference level indication of the interference in the uplink direction of the neighboring cell in the downlink direction of the target cell (such as CLI-DL-HII (CLI-Downlink-high-interference indicator)) is high interference.
  • CLI-DL-HII CLI-Downlink-high-interference indicator
  • the target cell reduces downlink transmit power
  • the neighboring cell of the target cell increases uplink transmit power
  • the target cell downlink uses a primary sub-band for transmission
  • the edge area of the target cell is downlinked using a primary sub-band for transmission;
  • the neighboring cell of the target cell uplink uses the primary sub-band for transmission
  • the CLI-DL-HII is used to characterize the possible interference level of a cell downlink to the neighboring cell uplink, and the interference-causing cell measures the interference of the DL-to-UL (the downlink of the current cell to the neighboring cell uplink), which belongs to the pre-interference pre-interference. coordination.
  • the CLI-DL-HII characterizes the possible interference level of the UE to the neighboring cell uplink for the entire downlink bandwidth of the cell to be scheduled.
  • CLI-DL-HII can be divided into three levels: high interference, medium interference, and low interference; or two levels of high interference and low interference.
  • the CLI-DL-HII is measured by the cell (base station) causing the interference, and is notified to the neighboring cell, and the neighboring cell is expected to be coordinated.
  • the notification mode may be through a backhaul link (such as an X2 interface or a private interface) or an air interface (such as OTA signaling (Over the Air signaling)).
  • Each RB or each subband corresponds to a value.
  • the concept of subbands may be the same or different from the concept of the primary subband or the secondary subband described above. For example, another division manner is adopted, for example, several RBs are set as one sub-band, which is independent of the concept of the main sub-band or the sub-sub-band.
  • the interference level indication for characterizing the uplink direction of the target cell to the uplink direction of the neighboring cell may also use CLI-DL-RNTP (CLI-DL-Relative Narrowband TX Power, cross-link interference-downlink-relative narrowband transmission) Power) indicator.
  • CLI-DL-RNTP characterizes the power level of each RB of the full bandwidth to be downlink scheduled;
  • the interference level indication for characterizing the uplink direction of the target cell to the downlink direction of the neighboring cell may also use CLI-UL-RNTP (CLI-UL-Relative Narrowband TX Power, cross-link interference-uplink-relative narrowband transmit power) index.
  • CLI-UL-RNTP characterizes the power level of each RB of the full bandwidth to be uplink scheduled;
  • a CLI-RSRP CLI-Reference Signal Receiving Power
  • the CLI-RSRP is used to determine two UEs.
  • Interference or path loss or used to determine interference or path loss between two base stations. Similar to the RSRP used in LTE (used to determine the large-scale channel condition or path loss between the base station and the UE), the same noun or term can be used, but the CLI-RSRP here can be subdivided into CLI-RSRP-gNB and CLI-RSRP-UE, the former is mainly used for RSRP measurement between the base station and the base station, and the latter is used for RSRP measurement between the UE and the UE.
  • the determining the interference situation of the cross-link interference between the target cell and the neighboring cell includes: acquiring, by the base station of the target cell and/or the neighboring cell, a measurement quantity for characterizing the cross-link interference level, where The measured quantity includes at least one of the following measured quantities:
  • the measurement quantity used to characterize the downlink interference of the neighboring cell received by the uplink of the cell cross-link interference-uplink-overload indication CLI-UL-OI;
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • the measurement quantity used to characterize the interference that the downlink of the cell may cause to the uplink of the neighboring cell: cross-link interference-downlink-high interference indication CLI-DL-HII;
  • a measurement quantity used to characterize a reference signal received power level between a cell base station and a neighboring cell base station cross-link interference-reference signal received power-base station CLI-RSRP-gNB;
  • Means for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE;
  • the interference between the target cell and the neighboring cell includes:
  • the measurement amount is exchanged between the base stations of the target cell and/or the neighboring cell by: backhaul link and/or air interface signaling;
  • the backhaul link includes: an X2 interface or a private interface.
  • the measurement quantity measured by the user equipment UE and fed back to the base station includes at least one of the following:
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • Means for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE;
  • 100 RBs may be included.
  • 100 RBs can be divided into two sub-bands.
  • subband 1 and subband 2 each contain 50 RBs, and the two subbands are equal in size.
  • the primary subband of cell 1 is subband 1, and the subband is subband 2.
  • the primary sub-band of cell 2 is sub-band 2, and the sub-band is sub-band 1.
  • Subband 1, subband 2, and subband 3 contain 33, 33, and 34 RBs, respectively. These three sub-bands vary in size.
  • the primary sub-band of cell 1 is sub-band 1, and the sub-band is sub-band 2 and sub-band 3.
  • the primary sub-band of cell 2 is sub-band 2, and the sub-band is sub-band 1 and sub-band 3.
  • the primary sub-band of cell 3 is sub-band 2, and the sub-band is sub-band 1 and sub-band 3.
  • the transmit power of the three cells on different sub-bands has the following characteristics: high power is transmitted on the primary sub-band, and low power is transmitted on the secondary sub-band.
  • the DL of the cell 1 edge UE uses subband 1 (high power threshold, which is the primary subband of cell 1); the DL of the cell 1 center UE uses all subbands 1/2/3 (low power threshold); Both the edge UE and the UL of the central UE use subband 1 (power setting is not required, depending on the uplink power control).
  • the DL of the neighboring edge UE uses a subband different from subband 1, for example, subband 2 (high power threshold, which is the primary subband of cell 2); the neighboring cell center UE can use all subbands (subband 1/2/) 3), but the power threshold is low.
  • the edge UE of the neighboring cell and the UL of the central UE respectively use the subband 2 (the power setting is not required, and is determined according to the uplink power control).
  • gNB1 of cell 1 sends a DL to the cell center UE, and transmits it at a low power of 1/2/3 in the subband.
  • the coverage is in the dotted line and cannot reach the gNB2 of the cell 2. Therefore, the CLI of the gNB2 cannot be caused by the CLI, or the CLI can be ignored. Therefore, the cross-link interference of the base station to the base station is eliminated.
  • the gNB1 sends the DL to the cell edge UE, and the subband 1 transmits with high power, and the coverage is in the solid line frame, and can reach the gNB2. Since the UE UL of gNB2 is transmitted by subband 2, the DL of gNB1 does not cause CLI for all ULs of gNB2 at this time. Therefore, the cross-link interference of the base station to the base station is eliminated.
  • the gNB1 cell center UE transmits the UL to gNB1, and the sub-band 1 transmits according to the power set by the uplink power control.
  • the UE transmitting UL in the cell center generally does not cause a CLI to the neighboring center UE (subband 1/2/3) and the neighboring edge UE (subband 2) DL, or the CLI can be ignored.
  • the former is because the center of the cell 1 is far from the center of the cell 2, and the UL transmission power of the cell center UE is generally low. The latter is mainly due to the different sub-bands used.
  • the gNB1 cell edge UE transmits the UL to the gNB1, and the subband 1 transmits according to the power set by the uplink power control.
  • the UE UL at the cell edge generally does not cause a CLI for the neighboring center UE (subband 1/2/3) and the neighboring edge UE (subband 2) DL, or the CLI can be ignored.
  • the former is because the edge of the cell 1 is far from the center of the cell 2.
  • the latter is mainly due to the different sub-bands used.
  • an embodiment of the present disclosure provides an apparatus for eliminating interference, including:
  • the subband setting module 501 is configured to determine a primary subband and a secondary subband of the cell: the primary subband and the secondary subband of one cell are set to different subbands, and the primary subband of one cell and the primary subzone of the neighboring cell of the cell The bands are set to different sub-bands;
  • the transmission control module 502 is configured to use the primary sub-band and/or the secondary sub-band of the cell to transmit in a downlink direction of the cell, and use the primary sub-band of the cell to transmit in an uplink direction of the cell.
  • the subband setting module is configured to determine the primary subband and the secondary subband of the cell in the following manner:
  • Determining the number and range of subbands dividing the system bandwidth into multiple subbands, each subband includes one or more resource blocks RB, and any two subbands do not cross each other and do not overlap each other;
  • each RB in one subband is continuous or discontinuous; different subbands contain the same or different numbers of RBs.
  • the transmission control module is configured to use the primary subband and/or the secondary subband of the cell to transmit in the downlink direction of the cell in the following manner:
  • the downlink communication between the base station and the cell edge user equipment UE is sent by using a primary sub-band, and the transmission power is greater than or equal to a high power threshold;
  • the downlink communication of the base station to the cell center UE is transmitted by using the primary subband and/or the secondary subband; when the downlink communication of the base station to the cell center UE is transmitted on the secondary subband, the transmission power is less than or equal to the low power threshold.
  • the transmission control module is configured to use the primary sub-band and/or the secondary sub-band of the cell to transmit in the downlink direction of the cell, and use the primary sub-band of the cell to transmit in the uplink direction of the cell.
  • the transmission control module is configured to determine interference of cross-link interference between the target cell and the neighboring cell in the following manner, and interact with the interference situation between the target cell and the neighboring cell and reduce the interference situation. Coordination of interference:
  • the target cell increases uplink transmit power
  • the neighboring cell of the target cell reduces downlink transmission power
  • the target cell uplink uses a primary subband for transmission
  • the neighboring cell of the target cell downlink uses the primary sub-band for transmission
  • the edge region of the neighboring cell of the target cell is downlinked and transmitted using the primary subband.
  • the transmission control module is configured to determine interference of cross-link interference between the target cell and the neighboring cell in the following manner, and interact with the interference situation between the target cell and the neighboring cell and reduce the interference situation. Coordination of interference, including:
  • the target cell reduces uplink transmit power
  • the neighboring cell of the target cell increases downlink transmit power
  • the target cell uplink uses a primary subband for transmission
  • the neighboring cell of the target cell downlink uses the primary sub-band for transmission
  • the edge region of the neighboring cell of the target cell is downlinked and transmitted using the primary subband.
  • the transmission control module is configured to determine interference of cross-link interference between the target cell and the neighboring cell in the following manner, and interact with the interference situation between the target cell and the neighboring cell and reduce the interference situation. Coordination of interference, including:
  • the target cell increases downlink transmit power
  • the neighboring cell of the target cell reduces uplink transmit power
  • the target cell downlink uses a primary sub-band for transmission
  • the edge area of the target cell is downlinked using a primary sub-band for transmission
  • the neighboring cell of the target cell uplink uses the primary subband for transmission.
  • the transmission control module is configured to determine interference of cross-link interference between the target cell and the neighboring cell in the following manner, and interact with the interference situation between the target cell and the neighboring cell and reduce the interference situation. Coordination of interference, including:
  • the target cell reduces downlink transmit power
  • the neighboring cell of the target cell increases uplink transmit power
  • the target cell downlink uses a primary sub-band for transmission
  • the edge area of the target cell is downlinked using a primary sub-band for transmission
  • the neighboring cell of the target cell uplink uses the primary subband for transmission.
  • the transmission control module is configured to determine interference of cross-link interference between the target cell and the neighboring cell in the following manner:
  • the base station of the target cell and/or the neighboring cell acquires a measurement quantity for characterizing the cross-link interference level, the measurement quantity including at least one of the following measurement quantities:
  • the measurement quantity used to characterize the downlink interference of the neighboring cell received by the uplink of the cell cross-link interference-uplink-overload indication CLI-UL-OI;
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • the measurement quantity used to characterize the interference that the downlink of the cell may cause to the uplink of the neighboring cell: cross-link interference-downlink-high interference indication CLI-DL-HII;
  • a measurement quantity used to characterize a reference signal received power level between a cell base station and a neighboring cell base station cross-link interference-reference signal received power-base station CLI-RSRP-gNB;
  • Means for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE;
  • the transmission control module is configured to exchange the interference situation between the target cell and the neighboring cell in the following manner:
  • the measurement amount is exchanged between the base stations of the target cell and/or the neighboring cell by: backhaul link and/or air interface signaling.
  • the backhaul link includes: an X2 interface or a private interface.
  • the measurement quantity measured by the user equipment UE and fed back to the base station includes at least one of the following:
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • Means for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE;
  • the embodiment of the present disclosure provides a method for eliminating interference, including:
  • the base station acquires a measurement quantity for measuring a cross-link interference level.
  • the base station and the neighboring cell base station exchange the measurement quantity for measuring the cross-link interference level.
  • the measurement amount includes at least one of the following measurement amounts:
  • the measurement quantity used to characterize the downlink interference of the neighboring cell received by the uplink of the cell cross-link interference-uplink-overload indication CLI-UL-OI;
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • the measurement quantity used to characterize the interference that the downlink of the cell may cause to the uplink of the neighboring cell: cross-link interference-downlink-high interference indication CLI-DL-HII;
  • a measurement quantity used to characterize a reference signal received power level between a cell base station and a neighboring cell base station cross-link interference-reference signal received power-base station CLI-RSRP-gNB;
  • a measure for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE.
  • the measurement quantity measured by the user equipment UE and fed back to the base station includes at least one of the following:
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • a measure for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE.
  • the base station and the neighboring cell base station exchange the measurement quantity for measuring the cross-link interference level, including:
  • the base station and the neighboring cell base station exchange measurement quantities in the following manner: backhaul link and/or air interface signaling.
  • the backhaul link includes: an X2 interface or a private interface.
  • the base station obtains the measurement result of the measurement quantity and the measurement result of the measurement quantity of the interaction with the neighboring base station.
  • the base station can adjust its own transmission policy according to the measurement result of the measurement quantity (for example, increase/decrease power, or replace The sub-band is transmitted, so as to reduce the influence of the neighboring cell on the cross-link interference of the neighboring cell, or reduce the cross-link interference of the neighboring cell to the neighboring cell.
  • the neighboring base station can adjust the transmission policy of the neighboring base station (for example, increase/decrease power, or schedule, or replace the transmission subband, etc.) according to the obtained measurement result of the measured quantity of the base station, and can also reduce the neighboring cell pair.
  • the cross-link interference of the cell or the influence of interference of the neighboring cell by the cell effectively reduce the impact of cross-link interference on system performance, and improve the performance of the dynamic TDD system or the like.
  • an embodiment of the present disclosure provides an apparatus for eliminating interference, which is applied to a base station, and includes:
  • a measurement quantity obtaining module 701, configured to acquire a measurement quantity for measuring a cross-link interference level
  • the measurement quantity interaction module 702 is configured to exchange the measurement quantity for measuring the cross-link interference level with the neighboring cell base station.
  • the measurement amount includes at least one of the following measurement amounts:
  • the measurement quantity used to characterize the downlink interference of the neighboring cell received by the uplink of the cell cross-link interference-uplink-overload indication CLI-UL-OI;
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • the measurement quantity used to characterize the interference that the downlink of the cell may cause to the uplink of the neighboring cell: cross-link interference-downlink-high interference indication CLI-DL-HII;
  • a measurement quantity used to characterize a reference signal received power level between a cell base station and a neighboring cell base station cross-link interference-reference signal received power-base station CLI-RSRP-gNB;
  • a measure for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE.
  • the measurement quantity measured by the user equipment UE and fed back to the base station includes at least one of the following:
  • the measurement quantity used to characterize the uplink interference of the neighboring cell received by the downlink of the cell cross-link interference-downlink-overload indication CLI-DL-OI;
  • a measure for characterizing a reference signal received power level between the cell user equipment UE and the neighboring cell UE cross-link interference-reference signal received power-user equipment CLI-RSRP-UE.
  • the measurement quantity interaction module is configured to interact with the neighboring cell base station to measure the measurement amount of the cross-link interference level in the following manner:
  • the measurement quantity is exchanged with the neighboring cell base station in the following manner: backhaul link and/or air interface signaling.
  • the backhaul link includes: an X2 interface or a private interface.
  • Embodiments of the present disclosure also provide a storage medium that can be configured to store program code for performing the above steps.
  • the method according to the foregoing embodiment can be implemented by means of software plus a necessary general hardware platform, or can also be implemented by hardware.
  • the technical solution of the present invention may be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), including a plurality of instructions for making a terminal.
  • the device (which may be a cell phone, computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
  • the present disclosure is applicable to the field of wireless communication technologies to solve the problem of cross-link interference.

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Abstract

本文公开了一种消除干扰的方法和装置以及存储介质，该方法包括：确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送。本文能够解决跨链路干扰问题。 (图2)

Description

一种消除干扰的方法和装置以及存储介质 技术领域
本公开涉及无线通信技术领域，尤其涉及的是一种消除干扰的方法和装置以及存储介质。
背景技术
在过去的几十年中，移动通信经历了从语音业务到高速率宽带数据业务的飞跃发展。而随着移动互联网和物联网等新型业务的进一步发展，人们对移动网络的新需求将会进一步增加。一方面，预计未来移动网络数据流量将会爆发式增长。另一方面，海量的设备连接和多样化的业务和应用是未来无线通信系统的重要特征之一，以人为中心的通信与以机器为中心的通信将会共存发展。基于未来移动通信多样化的业务和应用需求，无线通信系统必须满足多样化的要求，如包括在吞吐量、时延、可靠性、链接密度、成本、能耗、复杂性以及覆盖等多发面的要求。
LTE系统支持在成对的频谱上执行FDD(Frequency Division Duplexing，频分双工)操作，同时也支持在一个非成对的载波上执行TDD(Time Division Duplexing，时分双工)操作。传统的TDD操作方式只能应用有限的几种上下行链路子帧分配的配置方式(配置方式0～配置方式6)，且邻区之间采用相同的配置，也即有着相同的发送方向。eIMTA(enhanced interference mitigation and traffic adapatation，增强型干扰消除和业务自适应)可以半静态地(10ms以上)配置LTE系统的上下行链路方向，邻区之间可以采用不同的TDD上下行链路子帧分配的配置方式，但这些配置方式仍限于上述有限的几种配置方式。
为了满足业务快速自适应的需求、以及进一步提高频谱的使用效率，未来无线通信系统(如5G(Fifth-Generation，第五代移动通信技术)/NR(New Radio，新型无线)系统)应支持动态TDD操作。动态TDD(Dynamic TDD)，亦可称为灵活双工(Flexible Duplexing)或双工灵活性(Duplexing Flexibility)，是指可以在非成对频谱上、或在成对频谱中的上行载波或下行载波上动态或半动态地改变上行或下行的发送方向。相比较eIMTA，动态TDD操作可以支持子帧级、或时隙级、甚至更动态的发送方向改变。而且，动态TDD不限制仅采用上述有限的几种上下行链路子帧分配的配置方式，可以更灵活地调度上下行发送。
但是，动态TDD面临严重的CLI(Cross-Link Interference,跨链路干扰)问题。如图1-a所示，第二小区内的用户终端(UE2-1)的上行发送会对第一小区内的用户终端(UE1-1)的下行接收造成跨链路干扰(UE-to-UE(终端到终端)的干扰)；另一方面，如图1-b所示，第二小区的基站(gNB2)的下行发送会对第一小区的基站(gNB1)的上行接收造成跨链路干扰(gNB-to-gNB(基站到基站)的干扰)。其中，网络侧节点除了包括gNB(The Next Generation Node B，下一代节点B)外，还可以包括TRP(Transmission/Reception Point，发送接收点)、AP(Access Point，接入点)等。
动态的跨链路干扰不同以往的同链路干扰，它具有干扰严重且影响大、方向变化快、并且没有成熟机制来解决等特点。如何来解决跨链路干扰问题，尚未有好的解决方案。
发明内容
本公开所要解决的技术问题是提供一种消除干扰的方法和装置，能够解决跨链路干扰问题。
本公开实施例提供了一种消除干扰的方法，包括：
确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；
在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送。
本公开实施例还提供了一种消除干扰的装置，包括：
子带设置模块，用于确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；
传输控制模块，设置为在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送。
本公开实施例还提供了一种消除干扰的方法，包括：
基站获取用于测量跨链路干扰水平的测量量；
基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
本公开实施例还提供了一种消除干扰的装置，应用于基站，包括：
测量量获取模块，设置为获取用于测量跨链路干扰水平的测量量；
测量量交互模块，设置为与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
本公开实施例还提供了一种存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现以下步骤：
确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；
在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送。
本公开实施例还提供了一种存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现以下步骤：
基站获取用于测量跨链路干扰水平的测量量；
基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
与相关技术相比，本公开实施例提供的一种消除干扰的方法和装置，确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；在小区的下行方向使用所述小区的主子带和/或辅子 带进行发送，在小区的上行方向使用所述小区的主子带进行发送。本公开实施例能够解决跨链路干扰问题。
附图说明
图1-a为相关技术中跨链路干扰的示意图(终端到终端的干扰)；
图1-b为相关技术中跨链路干扰的示意图(基站到基站的干扰)；
图2为本公开实施例1的一种消除干扰的方法流程图；
图3为本公开示例1中三个邻小区的子带划分和功率设置示意图；
图4-1为本公开示例1中消除跨链路干扰(基站对基站)的示意图；
图4-2为本公开示例1中消除跨链路干扰(终端对终端)的示意图；
图5为本公开实施例2的一种消除干扰的装置示意图；
图6为本公开实施例3的一种消除干扰的方法流程图；
图7为本公开实施例4的一种消除干扰的装置示意图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚明白，下文中将结合附图对本公开的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在本公开实施例的描述中，网络侧以基站(gNB)为例，应用于基站的方法同样可以应用于小区(cell)、小小区(small cell)、发送接收点(TRP)、接入点(AP)等网络侧的部署设备。终端侧以UE(User Equipment，用户设备)为例，应用于UE的方法同样可以应用于IOT(Internet of Things，物联网)设备、MTC(Machine Type Communication，机器类型通信)设备、V2X(Vehicle to Vehicle，车对车)设备等。
在本公开实施例的描述中，一个小区上行/下行对邻区下行的干扰，等同于该小区对邻区UE接收下行的干扰，也即被干扰者为邻区的UE；一个小区上行/下行对邻区上行的干扰，等同于该小区对邻区基站接收上行的干扰，也即被干扰者为邻区的基站。
实施例1
如图2所示，本公开实施例提供了一种消除干扰的方法，包括：
步骤S210，确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；
步骤S220，在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送；
在本实施例中，所述确定小区的主子带和辅子带，包括：
确定子带数量和范围：将系统带宽(或载波带宽)划分为多个子带，每个子带包括一个 或多个资源块RB，任意两个子带之间互不交叉、互不重叠；
其中，一个子带内的各个RB连续或不连续；不同的子带包含的RB的数量相同或不相同；
其中，一个小区的主子带是一个子带，所述小区的辅子带是所述小区的系统带宽或载波带宽上除所述主子带之外的其他子带；比如，一个小区的子带划分为：主子带1，辅子带1，辅子带2，…辅子带n；
在本实施例中，确定子带数量和范围，可以采用以下方式中的任意一种进行确定：由协议确定；由基站或宏小区统一确定；由相邻小区之间相互协调进行确定；
在本实施例中，确定小区的主子带和辅子带，可以采用以下方式中的任意一种进行确定：
由协议确定；由基站或宏小区统一确定；由相邻小区之间相互协调进行确定；
其中，确定子带数量和范围，以及小区的主子带和辅子带，包括采用以下a-c中的任意一种方式进行确定：
a)预先确定子带数量和范围；
例如，运营商/协议/基站事先将系统带宽分为三个子带，但是对于特定小区，三个子带中哪一个是主子带，并不限定。主子带可以后续由邻小区之间相互协调来确定；
b)预先确定子带数量和范围，以及小区的主子带和辅子带；
例如，运营商/协议/基站事先将系统带宽分为三个子带：子带1、子带2、子带3。小区1使用子带1作为主子带，小区2使用子带2作为主子带，小区3采用子带3作为主子带；
c)子带数量和范围，以及小区的主子带和辅子带由相邻小区之间相互协调进行确定；
在本实施例中，所述在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，包括：
基站到小区边缘UE的下行通信使用主子带发送，发送功率大于或等于高功率门限；
基站到小区中心UE的下行通信使用主子带和/或辅子带发送；基站到小区中心UE的下行通信在辅子带上发送时，发送功率小于或等于低功率门限。
下面具体说明小区的上行或下行使用的子带和功率情况：
基站到小区中心UE的下行通信可以使用主子带和/或辅子带发送，基站到小区边缘UE的下行通信优先使用主子带发送；小区内UE(包括小区中心UE和小区边缘UE)的上行通信优先使用主子带发送。
其中，子带之间根据需要可以设置保护带宽，来防止邻道干扰。一般来说，对于动态TDD，同一个小区的DL和UL不是同时发送，可以不设置保护带宽。不同小区之间存在需求设置保护带宽，但是由于小区之间存在路损，保护带宽不需要太大。
1)基站到小区边缘UE的下行通信优先使用主子带发送。此时，基站到小区边缘UE的下行通信在主子带上发送时，需要以高功率发送、或者设定高功率门限或高功率范围。
基站到小区边缘UE的高功率发送，会使得本基站的下行发送对邻基站的上行接收造成干扰(前提是所述下行发送和上行发送使用相同频带)。
下行发射功率需要能覆盖边缘UE，并且能保证边缘UE的性能。这里，优先使用主子带发送包含几种含义：
1、基站到小区边缘UE的下行通信只能使用主子带发送；或者
2、基站到小区边缘UE的下行通信优先使用主子带发送。当负载较轻，或边缘UE数目较少，首选在主子带上发送；当负载过重，或边缘UE数目较多，DL通信需求较大时，优选在主子带上发送，再使用其他辅子带发送；或者
3、基站到小区边缘UE的下行通信既可以使用主子带，也可以使用辅子带。当侦听到或根据交互信息了解到邻基站需要发送DL/UL，尤其是UL时，只在主子带上进行下行传输。
2)基站到小区中心UE的下行通信可以使用主子带和/或辅子带发送。此时，基站到小区中心UE的下行通信在辅子带上发送时，需要以低功率发送、或者设定低功率门限或低功率范围；基站到小区中心UE的下行通信在主子带上发送时，功率不限定采用高功率或低功率。优选的，需要以低功率发送、或者设定低功率门限或低功率范围。
这里，“低功率/低功率门限/低功率范围”是相对基站到小区边缘UE的下行通信的“高功率/高功率门限/高功率范围”。
比如，小区边缘UE的下行功率设定为功率A，小区中心UE的下行功率设定为B。功率B的设定需要满足：R1＝B/A小于或等于第一预设门限a(0<a<1)。因此，功率B的设定遵循“低功率/低功率门限/低功率范围”；或者，功率A的设定需要满足：R2＝A/B大于或等于第二预设门限b(b>1)。因此，功率A的设定遵循“高功率/高功率门限/高功率范围”。另外，显然A不能大于小区的最大下行发射功率。
另外，这里所述的主子带和/或辅子带上发送并不是说每个UE的DL调度都需要涵盖两种子带，或只选一种子带。而是说主子带和辅子带(也即全带宽)都可以用于小区中心UE的发送，具体在哪个/哪些子带上甚至在哪个RB上可以取决于UE的信道状况、块大小或调度情况。
3)小区内UE的上行通信优先使用主子带发送。此时，小区内UE在主子带上发送上行时，对UE的上行发送功率没有限制要求。也即，UE的上行功率具体仍取决于UE的上行功控算法(例如调度块大小、路损、开环等)，但可以不受子带属性(主子带、辅子带)影响。
这里，小区内UE的上行通信优先使用主子带发送包含几种含义：
1、小区内UE的上行通信只能使用主子带发送；或者
2、小区内UE的上行通信优先使用主子带发送。当负载较轻，小区内UE数目较少，首选在主子带上发送；当负载过重，或小区内UE数目较多，UL通信需求较大时，优选在主子带上发送，再使用其他辅子带发送；或者
3、小区内UE的上行通信既可以使用主子带，也可以使用辅子带。当侦听到或根据交互信息了解到邻基站需要发送DL/UL，尤其是DL时，只在主子带上进行下行传输。
在本实施例中，在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送，包括：
确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理：确定所述目标小区和邻小区的上行或下行发送子带和/或发送功率；
在本实施例中，所述确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的上行方向所受到的邻小区的下行干扰的干扰水平指示(比如CLI-UL-OI(CLI-Uplink-overload indicator，跨链路干扰-上行-过载指示))为高干扰或超过预设第一门限时，执行下述处理中的至少一种：
所述目标小区提高上行发送功率；
所述目标小区的邻小区降低下行发送功率；
所述目标小区上行使用主子带进行发送；
所述目标小区的邻小区下行使用主子带进行发送；
所述目标小区的邻小区的边缘区域下行使用主子带进行发送；
其中，CLI-UL-OI用于表征一个小区上行所受到的跨链路干扰水平，由受到干扰的小区(基站)测量邻小区下行对本小区上行的干扰，属于干扰后协调。可选地，CLI-UL-OI表征上行带宽每个RB或每个子带所经受的邻小区下行信道的干扰水平的测量量。CLI-UL-OI可以分为高干扰、中等干扰、低干扰三个级别；或者分为高干扰、低干扰两个级别。CLI-UL-OI由受到干扰的小区(基站)进行测量，并通知给邻小区，期望邻小区给予协调。通知方式可以是通过回传链路(如X2接口或私有接口)、或空口(如OTA signaling(Over the Air signaling，空口信令))。子带的概念可以与上述主子带或辅子带的概念相同或者不同。例如，采用另外的划分方式，例如几个RB设置为一个子带，与主子带或辅子带的概念独立。
例如，开始阶段目标小区和其邻区的上下行发送都使用全带宽发送。目标小区通过CLI-UL-OI的测量，获取邻区下行对自己上行的跨链路干扰情况。如果CLI-UL-OI为高干扰或超过预设门限，目标小区会使用目标小区的主子带来进行上行(UL)发送，并且会将CLI-UL-OI的结果或子带使用情况反馈给邻区，邻区会使用邻区的主子带来进行下行(DL)发送给边缘UE。这样就降低了邻区下行对目标小区上行的跨链路干扰。
在本实施例中，所述确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的上行方向对邻小区的下行方向的干扰的干扰水平指示(比如CLI-UL-HII(CLI-Uplink-high-interference indicator，跨链路干扰-上行-高干扰指示))为高干扰或超过预设第二门限时，执行下述处理中的至少一种：
所述目标小区降低上行发送功率；
所述目标小区的邻小区提高下行发送功率；
所述目标小区上行使用主子带进行发送；
所述目标小区的邻小区下行使用主子带进行发送；
所述目标小区的邻小区的边缘区域下行使用主子带进行发送；
其中，CLI-UL-HII用于表征一个小区上行对邻小区下行的可能的干扰水平，由造成干扰的小区测量UL-to-DL(本小区上行对邻小区下行)的干扰，属于干扰前预协调。可选地，CLI-UL-HII表征小区上行整个带宽将要被调度的UE对邻小区下行的可能干扰水平。CLI-UL-HII可以分为高干扰、中等干扰、低干扰三个级别；或者分为高干扰、低干扰两个级别。CLI-UL-HII由造成干扰的小区(基站)进行测量，并通知给邻小区，期望邻小区给予协调。通知方式可以是通过回传链路(如X2接口或私有接口)、或空口(如OTA signaling(Over the Air signaling，空口信令))。每个RB或每个子带对应一个值。子带的概念可以与上述主子带或辅子带的概念相同或者不同。例如，采用另外的划分方式，例如几个RB设置为一个子带，与主子带或辅子带的概念独立。
例如，开始阶段目标小区和其邻区的上下行发送都使用全带宽发送。目标小区通过CLI-UL-HII的测量，获取自己上行可能会对邻区的下行的跨链路干扰情况。如果CLI-UL-HII为高干扰或超过预设门限，目标小区会使用目标小区的主子带来进行上行(UL)发送，并且会将CLI-UL-HII的结果或子带使用情况反馈给邻区，邻区会使用邻区的主子带来进行下行(DL)发送给边缘UE。这样就降低了目标小区上行对邻区下行的跨链路干扰。
在本实施例中，所述确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的下行方向所受到的邻小区的上行干扰的干扰水平指示(比如CLI-DL-OI(CLI-Downlink-overload indicator，跨链路干扰-下行-过载指示))为高干扰或超过预设第三门限时，执行下述处理中的至少一种：
所述目标小区提高下行发送功率；
所述目标小区的邻小区降低上行发送功率；
所述目标小区下行使用主子带进行发送；
所述目标小区的边缘区域下行使用主子带进行发送；
所述目标小区的邻小区上行使用主子带进行发送；
其中，CLI-DL-OI用于表征一个小区下行所受到的跨链路干扰水平，由受到干扰的小区测量UL-to-DL(邻小区上行对本小区下行)的干扰，属于干扰后协调。CLI-DL-OI表征下行带宽每个RB或每个子带所经受的邻小区上行信道的干扰水平的测量量。CLI-DL-OI可以分为高干扰、中等干扰、低干扰三个级别；或者分为高干扰、低干扰两个级别。CLI-DL-OI由受到干扰的小区(基站或UE，优选UE)进行测量，如果是UE进行测量，则UE需要将测量量反馈给基站。可选地，可以由基站通知给邻小区，期望邻小区给予协调。通知方式可以是通过回传链路(如X2接口或私有接口)、或空口(如OTA signaling(Over the Air signaling，空口信令))。子带的概念可以与上述主子带或辅子带的概念相同或者不同。例如，采用另外的划分方式，例如几个RB设置为一个子带，与主子带或辅子带的概念独立。
在本实施例中，所述确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的下行方向对邻小区的上行方向的干扰的干扰水平指示(比如CLI-DL-HII(CLI-Downlink-high-interference indicator，跨链路干扰-下行-高干扰指示))为高干扰或超过预设第四门限时，执行下述处理中的至少一种：
所述目标小区降低下行发送功率；或者
所述目标小区的邻小区提高上行发送功率；或者
所述目标小区下行使用主子带进行发送；或者
所述目标小区的边缘区域下行使用主子带进行发送；或者
所述目标小区的邻小区上行使用主子带进行发送；
其中，CLI-DL-HII用于表征一个小区下行对邻小区上行的可能的干扰水平，由造成干扰的小区测量DL-to-UL(本小区下行对邻小区上行)的干扰，属于干扰前预协调。CLI-DL-HII表征小区下行整个带宽将要被调度的UE对邻小区上行的可能干扰水平。CLI-DL-HII可以分为高干扰、中等干扰、低干扰三个级别；或者分为高干扰、低干扰两个级别。CLI-DL-HII由造成干扰的小区(基站)进行测量，并通知给邻小区，期望邻小区给予协调。通知方式可以是通过回传链路(如X2接口或私有接口)、或空口(如OTA signaling(Over the Air signaling，空口信令))。每个RB或每个子带对应一个值。子带的概念可以与上述主子带或辅子带的概念相同或者不同。例如，采用另外的划分方式，例如几个RB设置为一个子带，与主子带或辅子带的概念独立。
此外，用于表征目标小区的下行方向对邻小区的上行方向的干扰的干扰水平指示还可以使用CLI-DL-RNTP(CLI-DL-Relative Narrowband TX Power，跨链路干扰-下行-相对窄带发射功率)指标。CLI-DL-RNTP表征全带宽每个RB的将要被下行调度的功率水平；
用于表征目标小区的上行方向对邻小区的下行方向的干扰的干扰水平指示还可以使用CLI-UL-RNTP(CLI-UL-Relative Narrowband TX Power，跨链路干扰-上行-相对窄带发射功率)指标。CLI-UL-RNTP表征全带宽每个RB的将要被上行调度的功率水平；
此外，目标小区和邻小区之间进行干扰协调时，还可以使用CLI-RSRP(CLI-Reference Signal Receiving Power，跨链路干扰-参考信号接收功率)指标，CLI-RSRP用于确定两个UE之间的干扰情况或路损，或者，用于确定两个基站之间的干扰情况或路损。与LTE中所用RSRP(用于确定基站和UE之间的大尺度信道状况或路损)类似，可以使用同一个名词或术语，但这里的CLI-RSRP又可细分为CLI-RSRP-gNB和CLI-RSRP-UE，前者主要用于基站与基站之间的RSRP测量，后者用于UE与UE之间的RSRP测量。
在本实施例中，所述确定目标小区和邻小区之间的跨链路干扰的干扰情况，包括：目标小区和/或邻小区的基站获取用于表征跨链路干扰水平的测量量，所述测量量包括以下测量量的至少一种：
用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE；
在本实施例中，所述在所述目标小区和邻小区之间交互所述干扰情况，包括：
目标小区和/或邻小区的基站之间通过如下方式交互测量量：回传链路和/或空口信令；
其中，所述回传链路包括：X2接口或私有接口。
在本实施例中，在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE；
下面用一个例子(示例1)对本实施例的消除干扰的方法进行说明。
假设载波带宽为20MHz，子载波间隔为15kHz，则可以包括100个RB。当在两个相邻小区之间做跨链路干扰消除时，100个RB可以分为两个子带。此时，优选不同的子带大小相同。比如，子带1和子带2分别包含50个RB，两个子带的大小相等。小区1的主子带为子带1，辅子带为子带2。小区2的主子带为子带2，辅子带为子带1。
当在三个相邻小区之间做跨链路干扰消除时，100个RB可以分为三个子带。子带1、子带2和子带3分别包含33、33、34个RB。这三个子带大小不等。小区1的主子带为子带1，辅子带为子带2和子带3。小区2的主子带为子带2，辅子带为子带1和子带3。小区3的主子带为子带2，辅子带为子带1和子带3。
如图3所述，三个小区在不同子带上的发射功率具有如下的特点：在主子带上采用高功率进行发送，在辅子带上采用低功率进行发送。具体地，小区1边缘UE的DL使用子带1(高功率门限，为小区1的主子带)；小区1中心UE的DL使用全部子带1/2/3(低功率门限)；小区1的边缘UE和中心UE的UL都使用子带1(功率设置不做要求，根据上行功控来定)。
邻区边缘UE的DL使用与子带1不同的子带，例如子带2(高功率门限，为小区2的主子带)；邻区小区中心UE可以使用全部子带(子带1/2/3)，但是功率门限低。邻区的边缘UE和中心UE的UL相应的都使用子带2(功率设置不做要求，根据上行功控来定)。
如图4-1所示，小区1的gNB1发送DL给小区中心UE，在子带1/2/3以低功率发送， 覆盖范围为虚线框内，无法到达小区2的gNB2，因此无法对gNB2的UL造成CLI，或CLI可以忽略。因此，消除了基站对基站的跨链路干扰。
gNB1发送DL给小区边缘UE，在子带1以高功率发送，覆盖范围为实线框内，可以到达gNB2。由于gNB2的UE UL都采用子带2发送，因此，此时gNB1的DL并不会对gNB2的所有UL造成CLI。因此，消除了基站对基站的跨链路干扰。
如图4-2所示，gNB1小区中心UE发送UL给gNB1，在子带1按照上行功率控制设定的功率发送。小区中心的UE发送UL一般不会对邻区中心UE(子带1/2/3)以及邻区边缘UE(子带2)的DL造成CLI，或者说CLI可以忽略。前者是由于小区1中心与小区2中心距离较远，且小区中心UE的UL发送功率一般较低。后者主要由于使用的子带不一样。
gNB1小区边缘UE发送UL给gNB1，在子带1按照上行功率控制设定的功率发送。小区边缘的UE UL一般不会对邻区中心UE(子带1/2/3)以及邻区边缘UE(子带2)的DL造成CLI，或者说CLI可以忽略。前者是由于小区1边缘与小区2中心距离较远。后者主要由于使用的子带不一样。
实施例2
如图5所示，本公开实施例提供了一种消除干扰的装置，包括：
子带设置模块501，用于确定小区的主子带和辅子带：将一个小区的主子带和辅子带设置为不同的子带，将一个小区的主子带与所述小区的邻小区的主子带设置为不同的子带；
传输控制模块502，用于在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送。
在本实施例中，子带设置模块，用于采用以下方式确定小区的主子带和辅子带：
确定子带数量和范围：将系统带宽划分为多个子带，每个子带包括一个或多个资源块RB，任意两个子带之间互不交叉、互不重叠；
其中，一个子带内的各个RB连续或不连续；不同的子带包含的RB的数量相同或不相同。
在本实施例中，传输控制模块，用于采用以下方式在小区的下行方向使用所述小区的主子带和/或辅子带进行发送：
基站到小区边缘用户设备UE的下行通信使用主子带发送，发送功率大于或等于高功率门限；
基站到小区中心UE的下行通信使用主子带和/或辅子带发送；基站到小区中心UE的下行通信在辅子带上发送时，发送功率小于或等于低功率门限。
在本实施例中，传输控制模块，用于采用以下方式在小区的下行方向使用所述小区的主子带和/或辅子带进行发送，在小区的上行方向使用所述小区的主子带进行发送：
确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理：确定所述目标小区和邻小区的上行或下行发送子带和/或发送功率。
在本实施例中，传输控制模块，用于采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理：
在目标小区的上行方向所受到的邻小区的下行干扰超过第一门限时，执行下述处理中的至少一种：
所述目标小区提高上行发送功率；
所述目标小区的邻小区降低下行发送功率；
所述目标小区上行使用主子带进行发送；
所述目标小区的邻小区下行使用主子带进行发送；
所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
在本实施例中，传输控制模块，用于采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的上行方向对邻小区的下行方向的干扰超过第二门限时，执行下述处理中的至少一种：
所述目标小区降低上行发送功率；
所述目标小区的邻小区提高下行发送功率；
所述目标小区上行使用主子带进行发送；
所述目标小区的邻小区下行使用主子带进行发送；
所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
在本实施例中，传输控制模块，用于采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的下行方向所受到的邻小区的上行干扰超过第三门限时，执行下述处理中的至少一种：
所述目标小区提高下行发送功率；
所述目标小区的邻小区降低上行发送功率；
所述目标小区下行使用主子带进行发送；
所述目标小区的边缘区域下行使用主子带进行发送；
所述目标小区的邻小区上行使用主子带进行发送。
在本实施例中，传输控制模块，用于采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况，在所述目标小区和邻小区之间交互所述干扰情况并进行降低干扰的协调处理，包括：
在目标小区的下行方向对邻小区的上行方向的干扰超过第四门限时，执行下述处理中的至少一种：
所述目标小区降低下行发送功率；
所述目标小区的邻小区提高上行发送功率；
所述目标小区下行使用主子带进行发送；
所述目标小区的边缘区域下行使用主子带进行发送；
所述目标小区的邻小区上行使用主子带进行发送。
在本实施例中，传输控制模块，用于采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况：
目标小区和/或邻小区的基站获取用于表征跨链路干扰水平的测量量，所述测量量包括以下测量量的至少一种：
用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE；
在本实施例中，传输控制模块，用于采用以下方式在所述目标小区和邻小区之间交互所述干扰情况：
目标小区和/或邻小区的基站之间通过如下方式交互测量量：回传链路和/或空口信令。
其中，所述回传链路包括：X2接口或私有接口。
在本实施例中，在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE；
实施例3
如图6所示，本公开实施例提供了一种消除干扰的方法，包括：
S610，基站获取用于测量跨链路干扰水平的测量量；
S620，基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
在本实施例中，所述测量量包括以下测量量的至少一种：
用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
在本实施例中，在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
在本实施例中，基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量，包括：
基站与邻小区基站之间通过如下方式交互测量量：回传链路和/或空口信令。
其中，所述回传链路包括：X2接口或私有接口。
本实施中采取基站获取测量量的测量结果、以及与邻基站交互测量量的测量结果，一方面所述基站可以根据测量量的测量结果，调整自身的发送策略(例如增加/降低功率、或更换发送子带等)，来降低本小区受到邻小区跨链路干扰的影响、或降低本小区对邻小区的跨链路干扰。另一方面，邻基站可以根据获取的所述基站对测量量的测量结果，调整邻基站的发送策略(例如增加/降低功率、或调度、或更换发送子带等)，同样可以降低邻小区对所述小区的跨链路干扰、或降低邻小区受到所述小区的干扰的影响。也即，基站对所述测量量的测量以及在基站间的交互有效地降低了跨链路干扰对系统性能的影响，提高了动态TDD系统或类似系统的性能。
如图7所示，本公开实施例提供了一种消除干扰的装置，应用于基站，包括：
测量量获取模块701，用于获取用于测量跨链路干扰水平的测量量；
测量量交互模块702，用于与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
在本实施例中，所述测量量包括以下测量量的至少一种：
用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
在本实施例中，在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
在本实施例中，测量量交互模块，用于采用以下方式与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量：
与邻小区基站之间通过如下方式交互测量量：回传链路和/或空口信令。
其中，所述回传链路包括：X2接口或私有接口。
本公开的实施例还提供了一种存储介质，上述存储介质可以被设置为存储用于执行以上各步骤的程序代码。
通过以上的实施方式的描述，本领域的技术人员可以了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，或者也可以通过硬件来实现。基于这样的理解，本发明的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
需要说明的是，本公开还可有其他多种实施例，在不背离本公开精神及其实质的情况下，熟悉本领域的技术人员可根据本公开作出各种相应的改变和变形，但这些相应的改变和变形都应属于本公开所附的权利要求的保护范围。
工业实用性
本公开适用于无线通信技术领域，用以解决跨链路干扰问题。

Claims (30)

  1. 一种消除干扰的方法，包括：
    确定小区的主子带和辅子带，所述小区的主子带与所述小区的邻小区的主子带占用不同的频带资源；
    在所述小区的主子带和/或辅子带上发送信号，在所述小区的主子带上接收信号。
  2. 如权利要求1所述的方法，其中：所述辅子带为一个或多个；
    所述主子带和各辅子带分别占用一部分系统带宽，任意两个子带之间互不交叉。
  3. 如权利要求1或2所述的方法，其中：
    所述在所述小区的主子带和/或辅子带上发送信号，包括：
    基站使用主子带向小区边缘用户设备UE发送信号，发送功率大于或等于高功率门限；
    基站使用主子带和/或辅子带向小区中心UE发送信号；当基站使用辅子带向小区中心UE发送信号时，发送功率小于或等于低功率门限。
  4. 如权利要求1或2所述的方法，其中：
    在所述小区的主子带和/或辅子带上发送信号，在所述小区的主子带上接收信号，包括：
    根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率。
  5. 如权利要求4所述的方法，其中：
    所述根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的上行方向所受到的邻小区的下行干扰超过第一门限时，执行下述处理中的至少一种：
    所述目标小区提高上行发送功率；
    所述目标小区的邻小区降低下行发送功率；
    所述目标小区上行使用主子带进行发送；
    所述目标小区的邻小区下行使用主子带进行发送；
    所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
  6. 如权利要求4所述的方法，其中：
    所述根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的上行方向对邻小区的下行方向的干扰超过第二门限时，执行下述处理中的至少一种：
    所述目标小区降低上行发送功率；
    所述目标小区的邻小区提高下行发送功率；
    所述目标小区上行使用主子带进行发送；
    所述目标小区的邻小区下行使用主子带进行发送；
    所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
  7. 如权利要求4所述的方法，其中：
    所述根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的下行方向所受到的邻小区的上行干扰超过第三门限时，执行下述处理中的至少一种：
    所述目标小区提高下行发送功率；
    所述目标小区的邻小区降低上行发送功率；
    所述目标小区下行使用主子带进行发送；
    所述目标小区的边缘区域下行使用主子带进行发送；
    所述目标小区的邻小区上行使用主子带进行发送。
  8. 如权利要求4所述的方法，其中：
    所述根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的下行方向对邻小区的上行方向的干扰超过第四门限时，执行下述处理中的至少一种：
    所述目标小区降低下行发送功率；
    所述目标小区的邻小区提高上行发送功率；
    所述目标小区下行使用主子带进行发送；
    所述目标小区的边缘区域下行使用主子带进行发送；
    所述目标小区的邻小区上行使用主子带进行发送。
  9. 如权利要求4所述的方法，其中：
    所述目标小区和邻小区之间的跨链路干扰的干扰情况通过如下步骤确定：目标小区和/或邻小区的基站获取用于表征跨链路干扰水平的测量量，所述测量量包括以下测量量的至少一种：
    用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
    用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
    用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  10. 如权利要求9所述的方法，还包括：
    在所述目标小区和邻小区之间交互所述干扰情况，包括：
    目标小区和/或邻小区的基站之间通过如下方式交互测量量：回传链路和/或空口信令。
  11. 一种消除干扰的装置，包括：
    子带设置模块，设置为确定小区的主子带和辅子带，所述小区的主子带与所述小区的邻小区的主子带占用不同的频带资源；
    传输控制模块，设置为在所述小区的主子带和/或辅子带上发送信号，在所述小区的主子带上接收信号。
  12. 如权利要求11所述的装置，其中：所述辅子带为一个或多个；
    所述主子带和各辅子带分别占用一部分系统带宽，任意两个子带之间互不交叉。
  13. 如权利要求11或12所述的装置，其中：
    传输控制模块，设置为采用以下方式在所述小区的主子带和/或辅子带上发送信号：
    基站使用主子带向小区边缘用户设备UE发送信号，发送功率大于或等于高功率门限；
    基站使用主子带和/或辅子带向小区中心UE发送信号；当基站使用辅子带向小区中心UE发送信号时，发送功率小于或等于低功率门限。
  14. 如权利要求11或12所述的装置，其中：
    传输控制模块，设置为采用以下方式在所述小区的主子带和/或辅子带上发送信号，在所述小区的主子带上接收信号：
    根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率。
  15. 如权利要求14所述的装置，其中：
    传输控制模块，设置为采用以下方式根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率：
    在目标小区的上行方向所受到的邻小区的下行干扰超过第一门限时，执行下述处理中的至少一种：
    所述目标小区提高上行发送功率；
    所述目标小区的邻小区降低下行发送功率；
    所述目标小区上行使用主子带进行发送；
    所述目标小区的邻小区下行使用主子带进行发送；
    所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
  16. 如权利要求14所述的装置，其中：
    传输控制模块，设置为采用以下方式根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的上行方向对邻小区的下行方向的干扰超过第二门限时，执行下述处理中的至少一种：
    所述目标小区降低上行发送功率；
    所述目标小区的邻小区提高下行发送功率；
    所述目标小区上行使用主子带进行发送；
    所述目标小区的邻小区下行使用主子带进行发送；
    所述目标小区的邻小区的边缘区域下行使用主子带进行发送。
  17. 如权利要求14所述的装置，其中：
    传输控制模块，设置为采用以下方式根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的下行方向所受到的邻小区的上行干扰超过第三门限时，执行下述处理中的至少一种：
    所述目标小区提高下行发送功率；
    所述目标小区的邻小区降低上行发送功率；
    所述目标小区下行使用主子带进行发送；
    所述目标小区的边缘区域下行使用主子带进行发送；
    所述目标小区的邻小区上行使用主子带进行发送。
  18. 如权利要求14所述的装置，其中：
    传输控制模块，设置为采用以下方式根据目标小区和邻小区之间的跨链路干扰的干扰情况，确定所述目标小区和邻小区的发送或接收子带和/或发送或接收功率，包括：
    在目标小区的下行方向对邻小区的上行方向的干扰超过第四门限时，执行下述处理中的至少一种：
    所述目标小区降低下行发送功率；
    所述目标小区的邻小区提高上行发送功率；
    所述目标小区下行使用主子带进行发送；
    所述目标小区的边缘区域下行使用主子带进行发送；
    所述目标小区的邻小区上行使用主子带进行发送。
  19. 如权利要求14所述的装置，其中：
    传输控制模块，设置为采用以下方式确定目标小区和邻小区之间的跨链路干扰的干扰情况：
    目标小区和/或邻小区的基站获取用于表征跨链路干扰水平的测量量，所述测量量包 括以下测量量的至少一种：
    用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
    用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
    用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  20. 如权利要求19所述的装置，其中：
    传输控制模块，设置为采用以下方式在所述目标小区和邻小区之间交互所述干扰情况：
    目标小区和/或邻小区的基站之间通过如下方式交互测量量：回传链路和/或空口信令。
  21. 一种消除干扰的方法，包括：
    基站获取用于测量跨链路干扰水平的测量量；
    基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
  22. 如权利要求21所述的方法，其中：
    所述测量量包括以下测量量的至少一种：
    用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
    用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
    用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  23. 如权利要求22所述的方法，其中：
    在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  24. 如权利要求21或22或23所述的方法，其中：
    基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量，包括：
    基站与邻小区基站之间通过如下方式交互测量量：回传链路和/或空口信令。
  25. 一种消除干扰的装置，应用于基站，包括：
    测量量获取模块，设置为获取用于测量跨链路干扰水平的测量量；
    测量量交互模块，设置为与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
  26. 如权利要求25所述的装置，其中：
    所述测量量包括以下测量量的至少一种：
    用于表征小区上行所受到的邻小区下行干扰的测量量：跨链路干扰-上行-过载指示CLI-UL-OI；
    用于表征小区上行可能对邻小区下行所造成的干扰的测量量：跨链路干扰-上行-高干扰指示CLI-UL-HII；
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区下行可能对邻小区上行所造成的干扰的测量量：跨链路干扰-下行-高干扰指示CLI-DL-HII；
    用于表征小区基站与邻小区基站之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-基站CLI-RSRP-gNB；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  27. 如权利要求26所述的装置，其中：
    在所述基站获取的测量量中，由用户设备UE测量得到并反馈给基站的测量量包括以下至少一种：
    用于表征小区下行所受到的邻小区上行干扰的测量量：跨链路干扰-下行-过载指示CLI-DL-OI；
    用于表征小区用户设备UE与邻小区UE之间的参考信号接收功率水平的测量量：跨链路干扰-参考信号接收功率-用户设备CLI-RSRP-UE。
  28. 如权利要求25或26或27所述的装置，其中：
    测量量交互模块，设置为采用以下方式与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量：
    与邻小区基站之间通过如下方式交互测量量：回传链路和/或空口信令。
  29. 一种存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现以下步骤：
    确定小区的主子带和辅子带，所述小区的主子带与所述小区的邻小区的主子带占用不同的频带资源；
    在所述小区的主子带和/或辅子带上发送信号，在所述小区的主子带上接收信号。
  30. 一种存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现以下步骤：
    基站获取用于测量跨链路干扰水平的测量量；
    基站与邻小区基站之间交互所述用于测量跨链路干扰水平的测量量。
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