WO2024041069A1 - 干扰抑制方法、系统以及终端、基站 - Google Patents

干扰抑制方法、系统以及终端、基站 Download PDF

Info

Publication number
WO2024041069A1
WO2024041069A1 PCT/CN2023/097043 CN2023097043W WO2024041069A1 WO 2024041069 A1 WO2024041069 A1 WO 2024041069A1 CN 2023097043 W CN2023097043 W CN 2023097043W WO 2024041069 A1 WO2024041069 A1 WO 2024041069A1
Authority
WO
WIPO (PCT)
Prior art keywords
crs
standard
information
cell
neighboring cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/097043
Other languages
English (en)
French (fr)
Inventor
吴径舟
杨姗
林佩
佘小明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Telecom Corp Ltd
Original Assignee
China Telecom Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to US18/873,989 priority Critical patent/US20250365752A1/en
Priority to JP2025511485A priority patent/JP2025526980A/ja
Priority to EP23856161.7A priority patent/EP4529331A4/en
Publication of WO2024041069A1 publication Critical patent/WO2024041069A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • 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
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

Definitions

  • This application is based on the application with CN application number 202211019904.
  • the present disclosure relates to the field of communication technology, and in particular to an interference suppression method, system, terminal, and base station.
  • the DSS (Dynamic Spectrum Sharing, dynamic spectrum overlap) technology (also known as LTE-NR coexistence technology) between LTE (Long Term Evolution) and NR (New Radio) is the current 5G (5th Generation Mobile Communication Technology (fifth generation mobile communication technology) is one of the important features introduced in the early stages of network deployment in order to save website construction costs and deployment time.
  • 5G Fifth Generation Mobile Communication Technology (fifth generation mobile communication technology) is one of the important features introduced in the early stages of network deployment in order to save website construction costs and deployment time.
  • the essence of DSS is that LTE and NR share the same spectrum, and the network side dynamically allocates resources to terminals for 4G or 5G transmission based on network load and other conditions.
  • an interference suppression method is provided, which is performed by a terminal, including: reporting cell-specific reference signal CRS interference suppression capability information to a base station, where the CRS interference suppression capability information is used to indicate that in the first In the scenario where the spectrum of the standard and the second standard overlap, whether the terminal located in the cell of the first standard supports interference suppression to the CRS of the neighboring cell of the second standard; receives the CRS auxiliary information of the neighboring cell sent by the base station, where the CRS auxiliary information of the neighboring cell includes : CRS related information of one or more neighboring cells of the second standard; interference suppression is performed based on the CRS auxiliary information of the neighboring cells.
  • the CRS-related information of each second-standard neighboring cell in one or more second-standard neighboring cells includes: at least one of first indication information and a frequency domain offset value, and the first indication information is used for Indicates whether the overlapping spectrum of the second standard neighboring cell and the first standard cell is frequency domain aligned, and the frequency domain deviation value is the frequency domain deviation value of the overlapping spectrum of the second standard neighboring cell and the first standard cell.
  • the CRS-related information of each second-standard neighboring cell includes: the CRS-related information of the second-standard neighboring cell. Physical cell identification.
  • the method further includes: receiving second-standard CRS mode information sent by the base station, wherein the second-standard CRS mode information includes: configuration information of one or more CRSs corresponding to one or more second-standard cells. .
  • the configuration information of the CRS corresponding to each second-standard cell includes: the downlink carrier frequency, the downlink carrier frequency of the second-standard cell Bandwidth, CRS port number and physical cell identity modulo 6 remainder
  • the relevant information of the CRS of each second standard neighboring cell includes: an index identifier, used to identify the configuration information of the CRS corresponding to the CRS of the second standard neighboring cell
  • the CRS related information of each second standard neighboring cell includes: the downlink carrier frequency, downlink carrier bandwidth, CRS port number and modulo 6 remainder of the physical cell identity of the second standard neighboring cell.
  • the configuration information of the CRS corresponding to each second-standard cell includes: the downlink carrier frequency, the downlink carrier frequency of the second-standard cell Bandwidth, multicast broadcast single frequency network MBSFN subframe configuration, CRS port number and physical cell identity modulo 6 remainder.
  • the relevant information of the CRS of each second standard neighbor cell includes: index identifier, used to identify the second standard neighbor cell.
  • the configuration information of the CRS corresponding to the CRS of the cell, or the relevant information of the CRS of each second-standard neighboring cell includes: the downlink carrier frequency, downlink carrier bandwidth, MBSFN subframe configuration, and number of CRS ports of the second-standard neighboring cell. and the modulo 6 remainder of the physical cell identity.
  • the index identifier corresponds to the index sequence of each CRS configuration information in the configuration information of multiple CRSs.
  • the CRS-related information of each second-standard neighboring cell includes: third indication information, used to indicate whether the CRS-related information of the second-standard neighboring cell meets the default configuration information of the network configuration; or,
  • the neighboring cell CRS auxiliary information also includes: fourth indication information, used to indicate whether the CRS related information of one or more second standard neighboring cells meets the default configuration information of the network configuration.
  • the third indication information indicates that the relevant information of the CRS of the second standard neighboring cell does not meet the default configuration information of the network configuration, or the fourth indication information indicates that the CRS of one or more second standard neighboring cells does not meet the default configuration information of the network configuration. If the relevant information does not meet the default configuration information of the network configuration, the third indication information or the fourth indication information is also used to implicitly instruct the terminal to turn off the interference suppression function of the CRS of the second standard neighboring cell.
  • the relevant information of the CRS of each second-standard neighboring cell also includes: the physical cell identity of the second-standard neighboring cell, the modulo-6 remainder of the physical cell identity, the time slot number, the duplex mode indication information, the above Downward subframe allocation, cyclic prefix type indication information, downlink carrier frequency, downlink carrier bandwidth, multicast broadcast single frequency At least one of the network MBSFN subframe configuration, CRS port number, and CRS muting indication information.
  • performing interference suppression based on the CRS auxiliary information of the neighboring cell includes: the terminal turns on the interference suppression function of the CRS of the second standard neighboring cell according to the CRS auxiliary information of the neighboring cell, and performs interference detection and interference suppression, wherein the CRS assistance of the neighboring cell
  • the information or second-standard CRS rate matching signaling implicitly instructs the terminal to enable the interference suppression function of the CRS of the second-standard neighboring cell.
  • the method further includes: receiving fifth indication information sent by the base station, where the fifth indication information is used to instruct the terminal to turn on the interference suppression function of the CRS of the second standard neighboring cell.
  • the fifth indication information is carried through Radio Access Control RRC signaling.
  • the method further includes: receiving neighboring cell CRS auxiliary information release information sent by the base station; and deleting the stored neighboring cell CRS auxiliary information according to the neighboring cell CRS auxiliary information release information.
  • the neighbor cell CRS assistance information is carried through radio access control RRC signaling.
  • the CRS-related information of each second-standard neighboring cell includes: the CRS-related information of the second-standard neighboring cell.
  • an interference suppression method is provided, which is performed by a base station and includes: receiving cell-specific reference signal CRS interference suppression capability information reported by a terminal, where the CRS interference suppression capability information is used to indicate In the spectrum overlap scenario between the first standard and the second standard, whether the terminal located in the first standard cell supports interference suppression for the CRS of the second standard neighboring cell; send the neighboring cell CRS auxiliary information to the terminal, where the neighboring cell CRS auxiliary information It includes: CRS related information of one or more second standard neighboring cells, used to assist the terminal in performing interference suppression on the CRS of the second standard neighboring cell.
  • the CRS-related information of each second-standard neighboring cell in one or more second-standard neighboring cells includes: at least one of first indication information and a frequency domain offset value, and the first indication information is used for Indicates whether the overlapping spectrum of the second standard neighboring cell and the first standard cell is frequency domain aligned, and the frequency domain deviation value is the frequency domain deviation value of the overlapping spectrum of the second standard neighboring cell and the first standard cell.
  • the CRS-related information of each second-standard neighboring cell when the neighboring cell CRS auxiliary information includes CRS-related information of multiple second-standard neighboring cells, the CRS-related information of each second-standard neighboring cell also includes: the second-standard neighboring cell. or the modulo 6 remainder of the physical cell identity of the neighboring cell of the second standard.
  • the method further includes: sending second-standard CRS mode information to the terminal, wherein the second-standard CRS mode information includes: configuration information of one or more CRSs corresponding to one or more second-standard cells. .
  • the configuration information of the CRS corresponding to each second-standard cell includes: the downlink carrier frequency, the downlink carrier frequency of the second-standard cell Bandwidth, CRS port number and physical cell identity modulo 6 remainder
  • the relevant information of the CRS of each second standard neighboring cell includes: an index identifier, used to identify the configuration information of the CRS corresponding to the CRS of the second standard neighboring cell
  • the relevant information of the CRS of each second-standard neighboring cell includes: an index identifier used to identify the configuration information of the CRS corresponding to the CRS of the second-standard neighboring cell, or the CRS corresponding to each second-standard neighboring cell.
  • the set of related information also includes: the downlink carrier frequency, downlink carrier bandwidth, CRS port number and modulo 6 remainder of the physical cell identity of the second standard neighboring cell.
  • the configuration information of the CRS corresponding to each second-standard cell includes: the downlink carrier frequency, the downlink carrier frequency of the second-standard cell Bandwidth, multicast broadcast single frequency network MBSFN subframe configuration, CRS port number and physical cell identity modulo 6 remainder.
  • the relevant information of the CRS of each second standard neighbor cell includes: index identifier, used to identify the second standard neighbor cell.
  • the configuration information of the CRS corresponding to the CRS of the cell, or the relevant information of the CRS of each second-standard neighboring cell includes: an index identifier used to identify the configuration information of the CRS corresponding to the CRS of the second-standard neighboring cell, or A set of relevant information corresponding to the CRS of each second-standard neighboring cell also includes: the downlink carrier frequency, downlink carrier bandwidth, MBSFN subframe configuration, number of CRS ports, and modulo-6 remainder of the physical cell identity of the second-standard neighboring cell.
  • the relevant information of the CRS of each second-standard neighboring cell includes: third indication information, used to indicate whether a set of relevant information corresponding to the CRS of the second-standard neighboring cell satisfies the default configuration information of the network configuration.
  • the neighboring cell CRS auxiliary information also includes: fourth indication information, used to indicate whether one or more sets of related information corresponding to the CRS of one or more second standard neighboring cells satisfies the default configuration information of the network configuration.
  • the third indication information indicates that a set of relevant information corresponding to the CRS of the second standard neighboring cell does not meet the default configuration information of the network configuration, or the fourth indication information indicates that one or more second standard neighboring cells If one or more sets of related information corresponding to the CRS do not meet the default configuration information of the network configuration, the third indication information or the fourth indication information is also used to implicitly instruct the terminal to turn off the interference suppression function of the CRS of the second standard neighboring cell.
  • the method further includes: sending fifth instruction information to the terminal, where the fifth instruction information is used to instruct the terminal to turn on the interference suppression function of the CRS of the second standard neighboring cell.
  • a terminal including: a sending module configured to report cell-specific reference signal CRS interference suppression capability information to a base station, where the CRS interference suppression capability information is used to indicate that in the first In the scenario where the spectrum of the standard and the second standard overlap, whether the terminal located in the cell of the first standard supports Interference suppression for CRS of neighboring cells of the second standard; a receiving module configured to receive CRS auxiliary information of neighboring cells sent by the base station, where the CRS auxiliary information of neighboring cells includes: CRS-related information of one or more neighboring cells of the second standard ; The interference suppression module is used to perform interference suppression based on the CRS auxiliary information of neighboring cells.
  • a base station including: a receiving module configured to receive cell-specific reference signal CRS interference suppression capability information reported by a terminal, where the CRS interference suppression capability information is used to indicate that in the first In the scenario where the spectrum of the first standard and the second standard overlap, whether the terminal located in the first standard cell supports interference suppression to the CRS of the second standard neighboring cell; the sending module is used to send the neighboring cell CRS auxiliary information to the terminal, where the neighboring cell
  • the cell CRS auxiliary information includes: CRS-related information of one or more second-standard neighboring cells, and is used to assist the terminal in performing interference suppression on the CRS of the second-standard neighboring cells.
  • an interference suppression system including: a terminal according to any of the foregoing embodiments and a base station according to any of the foregoing embodiments.
  • a communication device including: a processor; and a memory coupled to the processor for storing instructions.
  • the processor causes the processor to perform any of the foregoing implementations.
  • a non-transitory computer-readable storage medium on which a computer program is stored, wherein when the program is executed by a processor, the interference suppression method of any of the foregoing embodiments is implemented.
  • Figure 1 shows a schematic flowchart of an interference suppression method according to some embodiments of the present disclosure.
  • Figure 2 shows a schematic structural diagram of a terminal according to some embodiments of the present disclosure.
  • Figure 3 shows a schematic structural diagram of a base station according to some embodiments of the present disclosure.
  • Figure 4 shows a schematic structural diagram of a communication device according to some embodiments of the present disclosure.
  • Figure 5 shows a schematic structural diagram of a communication device according to other embodiments of the present disclosure.
  • Figure 6 shows a schematic structural diagram of an interference suppression system according to some embodiments of the present disclosure.
  • CRS Cell-specific Reference Signal
  • a technical problem to be solved by this disclosure is: in a DSS scenario, how to improve the reliability and accuracy of terminal reception in an NR cell.
  • the present disclosure proposes an interference suppression method, which is described below with reference to Figure 1 .
  • Figure 1 is a flow chart of some embodiments of the disclosed method. As shown in Figure 1, the method in this embodiment includes: steps S102 to S106.
  • step S102 the terminal reports CRS interference suppression capability information to the base station.
  • the base station receives the CRS interference suppression capability information sent by the terminal.
  • the terminal (may also be called UE) is located in the cell of the first standard, and the base station is the base station to which the cell of the first standard belongs.
  • the first standard is, for example, NR
  • the second standard is, for example, LTE.
  • the method of the present disclosure can also be applied to a scenario where the first standard and the second standard are other standards and the spectrum overlaps.
  • the CRS interference suppression capability information is used to indicate whether a terminal located in a first-standard cell supports interference suppression for CRS of a second-standard neighboring cell in a spectrum overlap scenario between the first standard and the second standard.
  • the CRS interference suppression capability information is supportedCRS-InterMitigation-r17 to indicate whether the terminal supports CRS interference suppression in DSS and non-DSS scenarios where LTE and NR spectrum overlap.
  • CRS interference suppression capability information includes crs-IM-DSS-15kHz SCS-r17, which is used to indicate whether the terminal supports CRS-IM of adjacent LTE cells in the DSS scenario of NR 15kHz SCS (Subercarrier Space).
  • the base station sends capability query information to the terminal, and the terminal reports CRS interference suppression capability information to the base station.
  • step S104 the base station sends the neighboring cell CRS auxiliary information to the terminal.
  • the terminal receives the base station CRS auxiliary information sent by neighboring cells.
  • the base station may send the neighboring cell CRS auxiliary information to the terminal when the terminal supports interference suppression for the CRS of the neighboring cell of the second standard. It may also send the neighboring cell regardless of whether the terminal supports interference suppression for the CRS of the neighboring cell of the second standard.
  • CRS auxiliary information of neighboring cells can be carried through RRC (Radio Resource Control, Radio Access Control) signaling.
  • the CRS auxiliary information of the neighboring cell is used to assist the terminal in performing interference suppression for the CRS of the neighboring cell of the second standard.
  • the neighboring cell CRS auxiliary information includes, for example: CRS related information of one or more second standard neighboring cells.
  • the CRS assistance information of the neighboring cell is, for example, LTE-NeighCellsCRS-AssistInfoList IE (Information Element, information element), which is used to provide the configuration information of the LTE neighboring cell.
  • the auxiliary terminal overlaps the LET and NR spectrum. Perform interference suppression in scenarios.
  • the neighboring cell CRS auxiliary information may be a List (list) containing at most N arrays. Each array in the List indicates the CRS of a neighboring cell that is known to the network side and may have spectrum overlap with the first standard cell where the terminal is located. Related Information.
  • the CRS-related information of each second-standard neighboring cell in one or more second-standard neighboring cells includes: at least one of first indication information and a frequency domain offset value, and the first indication information is used for Indicates whether the overlapping spectrum of the second standard neighboring cell and the first standard cell is frequency domain aligned, and the frequency domain deviation value is the frequency domain deviation value of the overlapping spectrum of the second standard neighboring cell and the first standard cell.
  • the first indication information is used to indicate whether the frequency band shared by NR and LTE is frequency domain alignment information and/or frequency domain offset value.
  • the CRS-related information of each second-standard neighboring cell includes: the CRS-related information of the second-standard neighboring cell.
  • Physical Cell Identity PCI
  • the CRS auxiliary information of the neighboring cell only includes CRS-related information of a neighboring cell of the second standard, it may also include the physical cell identifier of the neighboring cell of the second standard.
  • the base station When the base station needs to send CRS-related information of multiple second-standard neighboring cells to the terminal, it is mandatory to include the physical cell identifier in the CRS-related information of each neighboring cell to avoid when the CRS-related information of different neighboring cells is included in the information.
  • the parameters When the parameters are different, it is difficult for the terminal to determine the corresponding relationship between the parameters and the cell, causing the interference cancellation algorithm to fail.
  • the relevant information of the CRS of each second-standard neighboring cell also includes: the physical cell identity of the second-standard neighboring cell, the modulo-6 remainder of the physical cell identity, the time slot number, the duplex mode indication information, the above Downward subframe allocation, cyclic prefix type indication information, downlink carrier frequency, downlink carrier bandwidth, MBSFN (Multicast Broadcast Single Frequency Network, multicast broadcast single frequency network) subframe configuration, CRS port number, CRS silence indication information, first At least one of indication information and frequency domain deviation value.
  • MBSFN Multicast Broadcast Single Frequency Network, multicast broadcast single frequency network
  • the CRS assistance information of neighboring cells is LTE-NeighCellsCRS-AssistInfoList
  • the CRS related information of each second standard neighboring cell includes a description of various information (all optional) as follows:
  • the physical cell identifier (which may be called neighCellId-r17) is, for example, EUTRA-PhysCellId;
  • the physical cell identifier modulo 6 remainder (can be called neighV-Shift-r17) is used to indicate the V-Shift of the LTE neighboring cell, for example, it is an enumeration value (ENUMERATED), including: n0, n1, n2, n3, n4, n5;
  • the time slot number is, for example, the slot number of the LTE neighboring cell
  • Duplex mode indication information is used to instruct LTE neighboring cells to use FDD or TDD duplex mode. If it is TDD, it can also include the uplink and downlink subframe ratio of LTE neighboring cells;
  • Cyclic prefix type indication information used to instruct LTE neighboring cells to use normal CP (normal cyclic prefix) or extended CP (extended cyclic prefix);
  • Downlink carrier frequency can be called neighCarrierFreqDL-r17
  • neighCarrierFreqDL-r17 used to indicate the downlink center frequency of the LTE neighboring cell, for example, an integer value (INTEGER) including 0..16838;
  • Downlink carrier bandwidth can be called neighCarrierBandwidthDL-r17
  • PRB Physical Resource Block
  • enumeration value ENUMERATED
  • MBSFN subframe configuration (can be called neighborMBSFN-SubframeConfigList-r17), used to indicate the MBSFN subframe configuration of LTE neighboring cells, such as EUTRA-MBSFN-SubframeConfigList;
  • the number of CRS ports (can be called neighNrofCRS-Ports-r17) is used to indicate the number of CRS antenna ports of LTE neighboring cells, such as an enumeration value (ENUMERATED), including: n1, n2, n4;
  • CRS muting indication information (can be called neighCRS-muting-r17) is used to indicate whether to activate network-based CRS interference mitigation (Network-based CRS interference mitigation) in the LTE neighboring cell, such as an enumeration value (ENUMERATED), including :enabled.
  • the base station sends second-standard CRS mode information to the terminal.
  • the terminal also receives the second-standard CRS mode information sent by the base station, where the second-standard CRS mode information includes: one or more second-standard CRS mode information. Configuration information of one or more CRS corresponding to the cell. This step and step S104 may not be in any order.
  • the second standard CRS pattern information is, for example, RateMatchPatternLTE-CRS (LTE-CRS rate matching pattern), which can be sent through R16DSS signaling (protocol existing signaling LTE-CRS-PatternList-r16) , which can be sent by the serving cell (for the serving cell).
  • RateMatchPatternLTE-CRS LTE-CRS rate matching pattern
  • R16DSS signaling protocol existing signaling LTE-CRS-PatternList-r16
  • the configuration information of the CRS corresponding to each second standard cell includes: the downlink carrier frequency, downlink carrier bandwidth, CRS port number and physical cell identity modulo 6 remainder of the second standard cell; or, each second standard cell
  • the configuration information of the CRS corresponding to the second-standard cell includes: the downlink carrier frequency, downlink carrier bandwidth, MBSFN subframe configuration, number of CRS ports, and modulo-6 remainder of the physical cell identity of the second-standard cell.
  • the information included in the CRS configuration information corresponding to each second standard cell is described as follows:
  • the downlink carrier frequency (can be called carrierFreqDL) is, for example, an integer value (INTEGER), with values including 0..16838;
  • the downlink carrier bandwidth (can be called carrierBandwidthDL) is, for example, an enumerated value (ENUMERATED), including: n6, n15, n25, n50, n75, n100, spare2, spare1;
  • MBSFN subframe configuration (can be called mbsfn-SubframeConfigList), for example EUTRA-MBSFN-SubframeConfigList;
  • the number of CRS ports (can be called nrofCRS-Ports) is, for example, an enumeration value (ENUMERATED), including: n1, n2, n4;
  • the physical cell identifier modulo 6 remainder (can be called v-Shift), for example, is an enumerated value (ENUMERATED), including: n0, n1, n2, n3, n4, n5.
  • Some information in the neighboring cell CRS auxiliary information and the second standard CRS mode information are similar.
  • one or more items of information related to the CRS of each second-standard neighboring cell may be missing, and the missing one or more pieces of information may be determined based on the second-standard CRS mode information.
  • the terminal applies the value in the downlink carrier bandwidth (can be called carrierBandwidthDL) in the second standard CRS pattern information (for example, RateMatchPatternLTE-CRS) ;
  • the terminal applies the value in the second standard CRS pattern information (for example, RateMatchPatternLTE-CRS) downlink carrier frequency (can be called carrierFreqDL);
  • the terminal applies the second standard CRS mode information (for example, RateMatchPatternLTE-CRS) in the MBSFN subframe configuration, otherwise, the terminal assumes that MBSFN is not configured in the LTE neighboring cell;
  • the terminal applies the value in the CRS port number (can be called nrofCRS-Ports) in the second standard CRS pattern information (for example, RateMatchPatternLTE-CRS), otherwise the terminal applies the default value n4.
  • the terminal may adopt a default network configuration for each second standard neighboring cell.
  • scenario 1 scenario 1
  • the number of CRS ports in the second standard neighboring cell is consistent with the number of CRS ports (can be called nrofCRS-Ports) in the second standard CRS mode information (for example, RateMatchPatternLTE-CRS); for the scenario 2.
  • the number of CRS ports in the neighboring cell of the second standard is 4.
  • the MBSFN subframe configuration of the second-standard neighboring cell is consistent with the MBSFN subframe configuration in the second-standard CRS mode information (for example, RateMatchPatternLTE-CRS).
  • MBSFN is not configured.
  • Network-based CRS interference mitigation (Network-based CRS interference mitigation) is turned off (not enabled) in Scenario 1 and Scenario 2.
  • the above scenario 1 is a DSS scenario.
  • the serving cell will send the second standard CRS mode information (for example, RateMatchPatternLTE-CRS) to the terminal.
  • Scenario 2 is a non-DSS (nonDSS) scenario.
  • the serving cell will not send the second standard CRS mode information to the terminal. (For example, RateMatchPatternLTE-CRS).
  • one or more pieces of information missing from the CRS-related information of each second-standard neighboring cell can be determined based on the relevant content determined by the second-standard CRS mode information, and the terminal's information for each second-standard neighboring cell.
  • the relevant content that can be used in the default network configuration belongs to the default configuration information of the network configuration.
  • the CRS-related information of each second-standard neighbor cell includes: an index identifier used to identify the neighbor cell of the second standard.
  • the configuration information of the CRS corresponding to the CRS of the cell; the index identifier corresponds to the index sequence of each CRS configuration information in the configuration information of multiple CRSs.
  • the second-standard CRS mode information includes the configuration information of two CRSs
  • the neighboring cell CRS auxiliary information includes the CRS-related information of four second-standard neighboring cells. It is necessary to indicate which CRSs of the second-standard neighboring cells are the same as those of the first.
  • the CRS configuration information corresponds to which CRS of the neighboring cells of the second standard corresponds to the configuration information of the second CRS.
  • each second-standard cell includes: the downlink carrier frequency, downlink carrier bandwidth, number of CRS ports, and modulo 6 remainder of the physical cell identity of the second-standard cell
  • each second-standard cell includes: the downlink carrier frequency, the downlink carrier bandwidth, the number of CRS ports and the modulo 6 remainder of the physical cell identity of the second standard neighboring cell.
  • the configuration information of the CRS corresponding to each second standard cell includes: the downlink carrier frequency, downlink carrier bandwidth, MBSFN subframe configuration, CRS port number and modulo 6 remainder of the physical cell identity of the second standard cell
  • the relevant information of the CRS of each second-standard neighboring cell includes: the downlink carrier frequency, downlink carrier bandwidth, MBSFN subframe configuration, number of CRS ports, and modulo-6 remainder of the physical cell identity of the second-standard neighboring cell.
  • the terminal can be prevented from being unable to accurately determine the CRS-related information of the second-standard neighboring cell, resulting in Problem that interference suppression cannot be performed.
  • the CRS-related information of each second-standard neighboring cell includes: third indication information, used to indicate whether the CRS-related information of the second-standard neighboring cell meets the default configuration information of the network configuration, or,
  • the neighboring cell CRS auxiliary information also includes: fourth indication information, used to indicate whether the CRS related information of one or more second standard neighboring cells meets the default configuration information of the network configuration.
  • the fourth indication information is, for example, the lte-NeighCellsCRS-Assumptions field. If this field is not configured, the default network configuration is valid for all LTE neighboring cells.
  • LTE-neightcellscrs-AssistInfoList- is configured, r17
  • the configuration provided in LTE-neightcellscrs-AssistInfoList-r17 will override the default network configuration.
  • the third indication information indicates that the relevant information of the CRS of the second standard neighboring cell does not meet the default configuration information of the network configuration
  • the fourth indication information indicates that the relevant information of the CRS of one or more second standard neighboring cells does not meet the default configuration information of the network configuration
  • the default configuration information of the network configuration, the third indication information or the fourth indication information are also used to implicitly instruct the terminal to turn off the interference suppression function of the CRS of the second standard neighboring cell.
  • the terminal can be implicitly instructed to turn off the CRS interference suppression function of the neighboring cell to avoid performance degradation caused by the terminal's incorrect assumptions (it may not be turned off, and the terminal will automatically detect the CRS information of the second standard neighboring cell).
  • step S106 the terminal performs interference suppression according to the CRS auxiliary information of the neighboring cell.
  • the terminal enables the interference suppression function of the CRS of the neighboring cell of the second standard according to the CRS auxiliary information of the neighboring cell to perform interference detection and interference suppression.
  • the CRS auxiliary information of the neighboring cell can implicitly instruct the terminal to turn on the interference suppression function of the CRS of the second standard neighboring cell, or, the second standard CRS rate matching (LTE-CRS-ToMatchAround) signaling implicitly instructs the terminal to turn on the second standard neighbor cell.
  • the interference suppression function of the CRS of the cell, or the base station sends the fifth instruction information to the terminal.
  • the terminal receives the fifth instruction information sent by the base station, where the fifth instruction information is used to instruct the terminal to turn on the CRS of the neighboring cell of the second standard. interference suppression function.
  • the fifth indication information is carried, for example, through RRC signaling.
  • the base station may instruct the terminal to enable the interference suppression function of the CRS of the neighboring cell of the second standard in the above manner when the terminal supports interference suppression of the CRS of the neighboring cell of the second standard.
  • the base station may also instruct the terminal to turn off the interference suppression function of the CRS of the second standard neighboring cell through the fifth instruction information.
  • the base station also sends the neighboring cell CRS auxiliary information release information to the terminal.
  • the terminal receives the neighboring cell CRS auxiliary information release information sent by the base station; the terminal performs the stored neighboring cell according to the neighboring cell CRS auxiliary information release information.
  • CRS auxiliary information is deleted.
  • the first standard and the second standard can be NR and LTE respectively, which is suitable for DSS scenarios, that is, the spectrums of the first standard and the second standard overlap.
  • the terminal is located in a cell of the first standard and asks the base station whether it supports interference suppression for the CRS of the neighboring cell of the second standard.
  • the terminal receives the CRS auxiliary information of the neighboring cell sent by the base station including the relevant information of one or more CRSs of the neighboring cells of the second standard.
  • the terminal performs interference suppression based on the CRS auxiliary information of the neighboring cells, which can reduce the energy consumption of the terminal in performing interference detection on the CRS of one or more second-standard neighboring cells, and improve the reliability and accuracy of the terminal's downlink reception through interference suppression.
  • the base station determines whether it is necessary to configure relevant RRC indication signaling for the terminal based on the "whether it supports interference suppression of CRS of the second standard neighboring cell" capability reported by the terminal and based on the deployment situation of the neighboring cell.
  • This RRC indication signaling enables the terminal to enable the interference suppression function of the neighboring cell CRS when receiving downlink data.
  • the base station can also additionally send the neighboring cell CRS configuration information to the terminal through RRC signaling (neighboring cell CRS auxiliary information) to assist the terminal in detecting neighboring cell interference at the corresponding location and thereby performing interference suppression.
  • the present disclosure also provides a terminal, which is described below with reference to FIG. 2 .
  • Figure 2 is a structural diagram of some embodiments of a terminal of the present disclosure.
  • the terminal 20 of this embodiment includes: a sending module 210, a receiving module 220, and an interference suppression module 230.
  • the sending module 210 is configured to report the cell-specific reference signal CRS interference suppression capability information to the base station, where the CRS interference suppression capability information is used to indicate that in the spectrum overlap scenario of the first standard and the second standard, the CRS interference suppression capability information is located in the first standard cell. Whether the terminal supports interference suppression for CRS of neighboring cells of the second standard.
  • the sending module can be implemented using the transmitter of the terminal.
  • the receiving module 220 is configured to receive adjacent cell CRS auxiliary information sent by the base station, where the adjacent cell CRS auxiliary information includes: CRS related information of one or more second standard adjacent cells.
  • the receiving module can be implemented using the receiver of the terminal.
  • the interference suppression module 230 is configured to perform interference suppression based on CRS auxiliary information of neighboring cells.
  • the interference suppression module can be implemented using the terminal's controller.
  • the interference suppression module 230 is configured to enable the interference suppression function of the CRS of the neighboring cell of the second standard according to the CRS auxiliary information of the neighboring cell, and perform interference detection and interference suppression.
  • the receiving module 220 is also configured to receive second-standard CRS mode information sent by the base station, wherein the second-standard CRS mode information includes: the configuration of one or more CRSs corresponding to one or more second-standard cells. information.
  • the receiving module 220 is further configured to receive fifth indication information sent by the base station, where the fifth indication information is used to instruct the terminal to enable the interference suppression function of the CRS of the neighboring cell of the second standard.
  • the receiving module 220 is also used to receive the neighboring cell CRS auxiliary information release information sent by the base station; the terminal 20 also includes a deletion module, used to modify the stored neighboring cell CRS auxiliary information according to the neighboring cell CRS auxiliary information release information. Information is deleted.
  • the present disclosure also provides a base station, which will be described below in conjunction with Figure 3 .
  • FIG 3 is a structural diagram of some embodiments of a base station of the present disclosure.
  • the base station 30 in this embodiment includes: a receiving module 310 and a sending module 320.
  • the receiving module 310 is configured to receive the cell-specific reference signal CRS interference suppression capability information reported by the terminal, where the CRS interference suppression capability information is used to indicate that the cell is located in the first standard cell in a spectrum overlap scenario between the first standard and the second standard. Whether the terminal supports interference suppression for the CRS of the neighboring cell of the second standard.
  • the receiving module can be implemented using the receiver of the base station.
  • the sending module 320 is configured to send neighboring cell CRS auxiliary information to the terminal, where the neighboring cell CRS auxiliary information includes: CRS related information of one or more second standard neighboring cells, used to assist the terminal in targeting the CRS of the second standard neighboring cell. Perform interference suppression.
  • the sending module can be implemented using the transmitter of the base station.
  • the sending module 320 is also used to send second-standard CRS mode information to the terminal, where the second-standard CRS mode information includes: the configuration of one or more CRSs corresponding to one or more second-standard cells. information.
  • the sending module 320 is further configured to send fifth indication information to the terminal, where the fifth indication information is used to instruct the terminal to enable the interference suppression function of the CRS of the neighboring cell of the second standard.
  • the communication devices may each be implemented by various computing devices or computer systems, which will be described below in conjunction with FIG. 4 and FIG. 5 .
  • Figure 4 is a structural diagram of some embodiments of the communication device of the present disclosure.
  • the device 40 of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410.
  • the processor 420 is configured to execute any implementation of the present disclosure based on instructions stored in the memory 410. Interference suppression method in the example.
  • the memory 410 may include, for example, system memory, fixed non-volatile storage media, etc.
  • System memory stores, for example, operating systems, applications, boot loaders, databases, and other programs.
  • Figure 5 is a structural diagram of other embodiments of the communication device of the present disclosure.
  • the device 50 of this embodiment includes: a memory 510 and a processor 520, which are similar to the memory 410 and the processor 420 respectively. It may also include an input/output interface 530, a network interface 540, a storage interface 550, etc. These interfaces 530, 540, 550, the memory 510 and the processor 520 may be connected through a bus 560, for example.
  • the input and output interface 530 provides a connection interface for input and output devices such as a monitor, mouse, keyboard, and touch screen.
  • the network interface 540 provides a connection interface for various networked devices, such as a database server or a cloud storage server.
  • the storage interface 550 provides a connection interface for external storage devices such as SD cards and USB disks.
  • the present disclosure also provides an interference suppression system, which is described below in conjunction with FIG. 6 .
  • Figure 6 is a structural diagram of some embodiments of the interference suppression system of the present disclosure. As shown in Figure 6, the system of this embodiment includes: the terminal 20 of any of the foregoing embodiments and the terminal 30 of any of the foregoing embodiments.
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may be implemented using one or more computer-usable programs embodied therein The computer program code may be in the form of a computer program product implemented on a non-transitory storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.).
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions
  • the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
  • Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开涉及一种干扰抑制方法、系统以及终端、基站，涉及通信技术领域。本公开的方法由终端执行，包括：向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制；接收基站发送的邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息；根据邻小区CRS辅助信息进行干扰抑制。

Description

干扰抑制方法、系统以及终端、基站
相关申请的交叉引用
本申请是以CN申请号为202211019904.X，申请日为2022年8月24日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及通信技术领域，特别涉及一种干扰抑制方法、系统以及终端、基站。
背景技术
LTE(Long Term Evolution，长期演进)和NR(New Radio，新空口)之间的DSS(Dynamic Spectrum Sharing，动态频谱重叠)技术(也称为LTE-NR共存技术)是目前5G(5th Generation Mobile Communication Technology，第五代移动通信技术)网络部署初期，为了节省建站成本和部署时间，所引入的重要特性之一。DSS的本质是LTE与NR共用相同的频谱，并由网络侧根据网络负载等情况动态的为终端分配资源进行4G或5G的传输。
发明内容
根据本公开的一些实施例，提供的一种干扰抑制方法，由终端执行，包括：向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制；接收基站发送的邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息；根据邻小区CRS辅助信息进行干扰抑制。
在一些实施例中，一个或多个第二制式邻小区中每个第二制式邻小区的CRS的相关信息包括：第一指示信息和频域偏差值中至少一项，第一指示信息用于指示该第二制式邻小区与第一制式小区重叠的频谱是否频域对齐，频域偏差值为该第二制式邻小区与第一制式小区重叠的频谱的频域偏差值。
在一些实施例中，在邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的 物理小区标识。
在一些实施例中，该方法还包括：接收基站发送的第二制式CRS模式信息，其中，第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
在一些实施例中，在第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数。
在一些实施例中，在第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、多播广播单频网络MBSFN子帧配置、CRS端口数和物理小区标识模6余数，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
在一些实施例中，索引标识与多个CRS的配置信息中各个CRS配置信息的索引顺序相对应。
在一些实施例中，每个第二制式邻小区的CRS的相关信息包括：第三指示信息，用于指示该第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息；或者，邻小区CRS辅助信息还包括：第四指示信息，用于指示一个或多个第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息。
在一些实施例中，在第三指示信息指示该第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，或第四指示信息指示一个或多个第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，第三指示信息或第四指示信息还用于隐式指示终端关闭第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，每个第二制式邻小区的CRS的相关信息还包括：该第二制式邻小区的物理小区标识、物理小区标识模6余数、时隙编号、双工方式指示信息、上向下子帧配比、循环前缀类型指示信息、下行载波频率、下行载波带宽、多播广播单频 网络MBSFN子帧配置、CRS端口数、CRS静默指示信息中至少一项。
在一些实施例中，根据邻小区CRS辅助信息进行干扰抑制包括：终端根据邻小区CRS辅助信息开启第二制式邻小区的CRS的干扰抑制功能，进行干扰检测和干扰抑制，其中，邻小区CRS辅助信息或第二制式CRS速率匹配信令隐式指示终端开启第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，该方法还包括：接收基站发送的第五指示信息，其中，第五指示信息用于指示终端开启第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，第五指示信息通过无线接入控制RRC信令携带。
在一些实施例中，该方法还包括：接收基站发送的邻小区CRS辅助信息释放信息；根据邻小区CRS辅助信息释放信息对已存储的邻小区CRS辅助信息进行删除。
在一些实施例中，邻小区CRS辅助信息通过无线接入控制RRC信令携带。
在一些实施例中，在邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的物理小区标识或该第二制式邻小区的物理小区标识模6余数。
根据本公开的另一些实施例，提供的一种干扰抑制方法，由基站执行，包括：接收终端上报的小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制；向终端发送邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息，用于辅助终端针对第二制式邻小区的CRS进行干扰抑制。
在一些实施例中，一个或多个第二制式邻小区中每个第二制式邻小区的CRS的相关信息包括：第一指示信息和频域偏差值中至少一项，第一指示信息用于指示该第二制式邻小区与第一制式小区重叠的频谱是否频域对齐，频域偏差值为该第二制式邻小区与第一制式小区重叠的频谱的频域偏差值。
在一些实施例中，在邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息还包括：该第二制式邻小区的物理小区标识或该第二制式邻小区的物理小区标识模6余数。
在一些实施例中，该方法还包括：向终端发送的第二制式CRS模式信息，其中，第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
在一些实施例中，在第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与第二制式邻小区的CRS相对应的CRS的配置信息，或者每个第二制式邻小区的CRS对应的一组相关信息还包括：该第二制式邻小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数。
在一些实施例中，在第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、多播广播单频网络MBSFN子帧配置、CRS端口数和物理小区标识模6余数，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与第二制式邻小区的CRS相对应的CRS的配置信息，或者每个第二制式邻小区的CRS对应的一组相关信息还包括：该第二制式邻小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
在一些实施例中，每个第二制式邻小区的CRS的相关信息包括：第三指示信息，用于指示该第二制式邻小区的CRS对应的一组相关信息是否满足网络配置的默认配置信息，或者，邻小区CRS辅助信息还包括：第四指示信息，用于指示一个或多个第二制式邻小区的CRS对应的一组或多组相关信息是否满足网络配置的默认配置信息。
在一些实施例中，在第三指示信息指示该第二制式邻小区的CRS对应的一组相关信息不满足网络配置的默认配置信息，或第四指示信息指示一个或多个第二制式邻小区的CRS对应的一组或多组相关信息不满足网络配置的默认配置信息，第三指示信息或第四指示信息还用于隐式指示终端关闭第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，该方法还包括：向终端发送第五指示信息，其中，第五指示信息用于指示终端开启第二制式邻小区的CRS的干扰抑制功能。
根据本公开的又一些实施例，提供的一种终端，包括：发送模块，用于向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持 对第二制式邻小区的CRS的干扰抑制；接收模块，用于接收基站发送的邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息；干扰抑制模块，用于根据邻小区CRS辅助信息进行干扰抑制。
根据本公开的再一些实施例，提供的一种基站，包括：接收模块，用于接收终端上报的小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制；发送模块，用于向终端发送邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息，用于辅助终端针对第二制式邻小区的CRS进行干扰抑制。
根据本公开的又一些实施例，提供的一种干扰抑制系统，包括：前述任意实施例的终端和前述任意实施例的基站。
根据本公开的再一些实施例，提供的一种通信装置，包括：处理器；以及耦接至处理器的存储器，用于存储指令，指令被处理器执行时，使处理器执行如前述任意实施例的干扰抑制方法。
根据本公开的又一些实施例，提供的一种非瞬时性计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现前述任意实施例的干扰抑制方法。
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出本公开的一些实施例的干扰抑制方法的流程示意图。
图2示出本公开的一些实施例的终端的结构示意图。
图3示出本公开的一些实施例的基站的结构示意图。
图4示出本公开的一些实施例的通信装置的结构示意图。
图5示出本公开的另一些实施例的通信装置的结构示意图。
图6示出本公开的一些实施例的干扰抑制系统的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本公开及其应用或使用的任何限制。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
发明人发现：在DSS场景中，4G LTE邻小区对NR小区数据传输存在较大干扰。随着LTE的逐渐退网，邻区下行数据的发生量在逐渐减少，但LTE中常开且占用固定资源的下行CRS(Cell-specific Reference Signal，小区特定参考信号)，仍会在未来相当长的一段时间内，对NR小区中的5G NR终端造成较大的干扰。
本公开所要解决的一个技术问题是：在DSS场景中，如何提高NR小区中终端接收的可靠性和准确性。
本公开提出一种干扰抑制方法，下面结合图1进行描述。
图1为本公开方法一些实施例的流程图。如图1所示，该实施例的方法包括：步骤S102～S106。
在步骤S102中，终端向基站上报CRS干扰抑制的能力信息，相应的，基站接收终端发送的CRS干扰抑制的能力信息。
终端(也可以称为UE)位于第一制式小区内，基站为第一制式小区所属的基站。第一制式例如为NR，第二制式例如为LTE。当然本公开的方法也可以应用于第一制式和第二制式为其他制式并且频谱重叠的场景。
在一些实施例中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制。例如，CRS干扰抑制的能力信息为supportedCRS-InterMitigation-r17指示终端在LTE和NR频谱重叠的DSS和非DSS场景是否支持CRS干扰抑制。例如，CRS干扰抑制的能力信息包括crs-IM-DSS-15k Hz SCS-r17，用于指示终端是否支持NR 15kHz SCS(Subercarrier Space)的DSS场景下的相邻LTE小区CRS-IM。
在一些实施例中，基站向终端发送能力查询信息，终端向基站上报CRS干扰抑制的能力信息。
在步骤S104中，基站向终端发送邻小区CRS辅助信息，相应的，终端接收基站 发送的邻小区CRS辅助信息。
基站可以在终端支持对第二制式邻小区的CRS的干扰抑制的情况下，向终端发送邻小区CRS辅助信息，也可以无论终端是否支持对第二制式邻小区的CRS的干扰抑制都发送邻小区CRS辅助信息。邻小区CRS辅助信息可以通过RRC(Radio Resource Control，无线接入控制)信令携带。邻小区CRS辅助信息用于辅助终端针对第二制式邻小区的CRS进行干扰抑制。
邻小区CRS辅助信息例如包括：一个或多个第二制式邻小区的CRS的相关信息。在邻小区为LTE邻小区的情况下，邻小区CRS辅助信息例如为LTE-NeighCellsCRS-AssistInfoList IE(Information Element，信元)，用于提供LTE邻小区的配置信息，辅助终端在LET和NR频谱重叠的场景中执行干扰抑制。邻小区CRS辅助信息可以是一个最多包含N个数组的List(列表)，该List中的每个数组指示一个网络侧已知的与终端所在第一制式小区可能存在频谱重叠的邻小区的CRS的相关信息。
在一些实施例中，一个或多个第二制式邻小区中每个第二制式邻小区的CRS的相关信息包括：第一指示信息和频域偏差值中至少一项，第一指示信息用于指示该第二制式邻小区与第一制式小区重叠的频谱是否频域对齐，频域偏差值为该第二制式邻小区与第一制式小区重叠的频谱的频域偏差值。例如，第一指示信息用于指示NR与LTE共享频段是否频域对齐信息和/或频域偏差值。
在一些实施例中，在邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的物理小区标识(PCI)。在邻小区CRS辅助信息只包括一个第二制式邻小区的CRS的相关信息的情况下，也可以包括该第二制式邻小区的物理小区标识。当基站需要向终端发送多个第二制式邻小区的CRS的相关信息时，强制必须在每个邻小区的CRS的相关信息中包含物理小区标识，以避免当不同邻小区的CRS的相关信息中的参数各不相同时，终端难以判断参数与小区的对应关系，导致干扰消除算法无法进行。
在一些实施例中，每个第二制式邻小区的CRS的相关信息还包括：该第二制式邻小区的物理小区标识、物理小区标识模6余数、时隙编号、双工方式指示信息、上向下子帧配比、循环前缀类型指示信息、下行载波频率、下行载波带宽、MBSFN(Multicast Broadcast Single Frequency Network，多播广播单频网络)子帧配置、CRS端口数、CRS静默指示信息、第一指示信息和频域偏差值中至少一项。
例如，在第二制式为LTE的情况下，邻小区CRS辅助信息为LTE-NeighCellsCRS-AssistInfoList，每个第二制式邻小区的CRS的相关信息包括的各项信息(都是可选的)的描述如下：
物理小区标识(可以称为neighCellId-r17)例如为EUTRA-PhysCellId；
物理小区标识模6余数(可以称为neighV-Shift-r17)用于指示LTE邻小区的V-Shift，例如为枚举值(ENUMERATED)，包括：n0,n1,n2,n3,n4,n5；
时隙(slot)编号例如为LTE邻小区的slot编号；
双工方式指示信息，用于指示LTE邻小区使用FDD或TDD双工方式，若为TDD，还可以包括LTE邻小区的上下行子帧配比；
循环前缀类型指示信息，用于指示LTE邻小区使用normal CP(普通循环前缀)或extended CP(扩展循环前缀)；
下行载波频率(可以称为neighCarrierFreqDL-r17)，用于指示LTE邻小区的下行中心频率，例如为整数值(INTEGER)取值包括0..16838；
下行载波带宽(可以称为neighCarrierBandwidthDL-r17)，用于指示LTE邻小区的信道带宽占用的PRB(Physical Resource Block)数，例如为枚举值(ENUMERATED)，包括：n6,n15,n25,n50,n75,n100,spare2,spare1；
MBSFN子帧配置(可以称为neighMBSFN-SubframeConfigList-r17)，用于指示LTE邻小区的MBSFN子帧配置，例如为EUTRA-MBSFN-SubframeConfigList；
CRS端口数(可以称为neighNrofCRS-Ports-r17)，用于指示LTE邻小区的CRS天线端口数，例如为枚举值(ENUMERATED)，包括：n1,n2,n4；
CRS静默指示信息(可以称为neighCRS-muting-r17)，用于指示在LTE邻小区内是否启动基于网络的CRS干扰抑制(Network-based CRS interference mitigation)，例如为枚举值(ENUMERATED)，包括：enabled。
在一些实施例中，基站向终端发送第二制式CRS模式信息，相应的，终端还接收基站发送的第二制式CRS模式信息，其中，第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。该步骤和步骤S104可以不分先后顺序。
在第二制式为LTE的情况下，第二制式CRS模式信息例如为RateMatchPatternLTE-CRS(LTE-CRS速率匹配模式)，可以通过R16DSS信令(协议既有信令LTE-CRS-PatternList-r16)发送，可以是由服务小区发送的(for the serving  cell)。
在一些实施例中，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数；或者，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
例如，在第二制式为LTE的情况下，每个第二制式小区对应的CRS的配置信息包括的各项信息的描述如下：
下行载波频率(可以称为carrierFreqDL)例如为整数值(INTEGER)取值包括0..16838；
下行载波带宽(可以称为carrierBandwidthDL)例如为枚举值(ENUMERATED)，包括：n6,n15,n25,n50,n75,n100,spare2,spare1；
MBSFN子帧配置(可以称为mbsfn-SubframeConfigList)，例如为EUTRA-MBSFN-SubframeConfigList；
CRS端口数(可以称为nrofCRS-Ports)例如为枚举值(ENUMERATED)，包括：n1,n2,n4；
物理小区标识模6余数(可以称为v-Shift)，例如为枚举值(ENUMERATED)，包括：n0,n1,n2,n3,n4,n5。
邻小区CRS辅助信息和第二制式CRS模式信息中有一些信息是类似的。在一些实施例中，每个第二制式邻小区的CRS的相关信息中的一项或多项信息可以缺少，缺少的一项或多项信息可以根据第二制式CRS模式信息确定。
例如，第二制式邻小区的下行载波带宽(可以称为neighCarrierBandwidthDL-r17)缺少时，终端应用第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中下行载波带宽(可以称为carrierBandwidthDL)中的值；
第二制式邻小区的下行载波频率(可以称为neighCarrierFreqDL-r17)缺少时，终端应用第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)下行载波频率(可以称为carrierFreqDL)中的值；
第二制式邻小区的MBSFN子帧配置(可以称为neighMBSFN-SubframeConfigList-r17)缺少时，如果第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中MBSFN子帧配置(可以称为mbsfn-SubframeConfigList)被配置了，则终端应用第二制式CRS模式信息(例如为 RateMatchPatternLTE-CRS)中MBSFN子帧配置中的值，否则，终端假设在LTE邻小区中MBSFN没有配置；
第二制式邻小区的CRS端口数(可以称为neighNrofCRS-Ports-r17)缺少时，如果第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中CRS端口数(可以称为nrofCRS-Ports)被配置了，则终端应用第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中CRS端口数(可以称为nrofCRS-Ports)中的值，否则终端应用默认值n4。
在一些实施例中，终端针对每个第二制式邻小区可以采用默认网络配置。例如，针对场景1(senario 1)，第二制式邻小区的CRS端口数和第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中的CRS端口数(可以称为nrofCRS-Ports)一致；针对场景2，第二制式邻小区的CRS端口数为4。
又例如，针对场景1，第二制式邻小区的信道带宽(下行载波带宽，可以称为neighCarrierBandwidthDL-r17)和中心频率(下行载波频率，可以称为neighCarrierFreqDL-r17)和第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中的下行载波带宽和下行载波频率一致。
又例如，针对场景1，第二制式邻小区的MBSFN子帧配置和第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)中MBSFN子帧配置一致，针对场景2，MBSFN未配置。
又例如，基于网络的CRS干扰抑制(Network-based CRS interference mitigation)在场景1和场景2是关闭的(not enabled)。
上述场景1为DSS场景，服务小区会向终端发送第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)，场景2为非DSS(nonDSS)场景，服务小区不会向终端发送第二制式CRS模式信息(例如为RateMatchPatternLTE-CRS)。
上述各个实施例中，每个第二制式邻小区的CRS的相关信息中缺少的一项或多项信息可以根据第二制式CRS模式信息确定的相关内容，以及终端针对每个第二制式邻小区可以采用默认网络配置的相关内容，都属于网络配置的默认配置信息。
在一些实施例中，在第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息；索引标识与多个CRS的配置信息中各个CRS配置信息的索引顺序相对应。
例如，第二制式CRS模式信息包括2个CRS的配置信息，邻小区CRS辅助信息包括4个第二制式邻小区的CRS的相关信息，则需要指示哪些第二制式邻小区的CRS与第1个CRS的配置信息相对应，哪些第二制式邻小区的CRS与第2个CRS的配置信息相对应。
或者，在每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数。
或者，在每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
通过设置索引标识或者使每个第二制式邻小区的CRS的相关信息强制包含与对应的的CRS的配置信息一致的信息，可以避免终端无法准确确定第二制式邻小区的CRS的相关信息，导致干扰抑制无法执行的问题。
在一些实施例中，每个第二制式邻小区的CRS的相关信息包括：第三指示信息，用于指示该第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息，或者，邻小区CRS辅助信息还包括：第四指示信息，用于指示一个或多个第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息。第四指示信息例如为lte-NeighCellsCRS-Assumptions字段，如果未配置该字段，则默认网络配置对所有LTE相邻小区都有效，如果该字段已配置(即false)并且配置了LTE-neightcellscrs-AssistInfoList-r17，则LTE-neightcellscrs-AssistInfoList-r17中提供的配置将覆盖默认网络配置。
进一步，在第三指示信息指示该第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，或第四指示信息指示一个或多个第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，第三指示信息或第四指示信息还用于隐式指示终端关闭第二制式邻小区的CRS的干扰抑制功能。
通过上述信息可以隐式指示终端关闭邻区CRS干扰抑制功能，避免终端错误假设造成性能退降(也可以不关闭，不关闭时终端将自行检测第二制式邻小区的CRS的信息)。
在步骤S106中，终端根据邻小区CRS辅助信息进行干扰抑制。
在一些实施例中，终端根据邻小区CRS辅助信息开启第二制式邻小区的CRS的干扰抑制功能，进行干扰检测和干扰抑制。
邻小区CRS辅助信息可以隐式指示终端开启第二制式邻小区的CRS的干扰抑制功能，或者，或第二制式CRS速率匹配(LTE-CRS-ToMatchAround)信令隐式指示终端开启第二制式邻小区的CRS的干扰抑制功能，或者，基站向终端发送第五指示信息，相应的，终端接收基站发送的第五指示信息，其中，第五指示信息用于指示终端开启第二制式邻小区的CRS的干扰抑制功能。
第五指示信息例如通过RRC信令携带。基站可以针对终端支持对第二制式邻小区的CRS的干扰抑制的情况，通过上述方式指示终端开启第二制式邻小区的CRS的干扰抑制功能。基站还可以通过第五指示信息指示终端关闭第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，基站还向终端发送邻小区CRS辅助信息释放信息，相应的，终端接收基站发送的邻小区CRS辅助信息释放信息；终端根据邻小区CRS辅助信息释放信息对已存储的邻小区CRS辅助信息进行删除。
上述实施例中第一制式和第二制式可以分别为NR和LTE，适用于DSS场景，即第一制式和第二制式频谱重叠。终端位于第一制式小区内，向基站是否支持对第二制式邻小区的CRS的干扰抑制，终端接收基站发送的邻小区CRS辅助信息中包括一个或多个第二制式邻小区的CRS的相关信息，进而终端根据邻小区CRS辅助信息进行干扰抑制，可以减少终端对一个或多个第二制式邻小区的CRS进行干扰检测的能耗，并且通过干扰抑制可以提高终端下行接收的可靠性和准确性。
上述实施例的方法中，基站根据终端所上报的“是否支持第二制式邻小区的CRS的干扰抑制”能力，并根据邻小区部署情况，决定是否需要为终端配置相关RRC指示信令。该RRC指示信令，可以使终端在接收下行数据时，开启邻小区CRS的干扰抑制功能。基站还可以额外将邻区CRS配置信息通过RRC信令(邻小区CRS辅助信息)发送给终端，辅助其在对应的位置进行邻区干扰检测，进而进行干扰抑制。为避免终端侧对信令可能的解读错误，当存在多个邻小区的信息需要下发时，额外定义了RRC信令的发送规则。同时考虑了当NR与LTE共享频段并不是频域对齐时，发送频域偏差值，辅助进行干扰消除。上述实施例的方法有助于工作在NR和LTE共存场景下，支持邻小区CRS的干扰抑制的终端，大幅提升下行数据接收的可靠性。
本公开还提供一种终端，下面结合图2进行描述。
图2为本公开终端的一些实施例的结构图。如图2所示，该实施例的终端20包括：发送模块210，接收模块220，干扰抑制模块230。
发送模块210用于向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制。发送模块可以采用终端的发射器实现。
接收模块220用于接收基站发送的邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息。接收模块可以采用终端的接收器实现。
干扰抑制模块230用于根据邻小区CRS辅助信息进行干扰抑制。干扰抑制模块可以采用终端的控制器实现。
在一些实施例中，干扰抑制模块230用于根据邻小区CRS辅助信息开启第二制式邻小区的CRS的干扰抑制功能，进行干扰检测和干扰抑制。
在一些实施例中，接收模块220还用于接收基站发送的第二制式CRS模式信息，其中，第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
在一些实施例中，接收模块220还用于接收基站发送的第五指示信息，其中，第五指示信息用于指示终端开启第二制式邻小区的CRS的干扰抑制功能。
在一些实施例中，接收模块220还用于接收基站发送的邻小区CRS辅助信息释放信息；该终端20还包括删除模块，用于根据邻小区CRS辅助信息释放信息对已存储的邻小区CRS辅助信息进行删除。
具体各种信息的内容和形式可以参考前述干扰方法的实施例，在此不再赘述。
本公开还提供一种基站，下面结合图3进行描述。
图3为本公开基站的一些实施例的结构图。如图3所示，该实施例的基站30包括：接收模块310，发送模块320。
接收模块310用于接收终端上报的小区特定参考信号CRS干扰抑制的能力信息，其中，CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的终端是否支持对第二制式邻小区的CRS的干扰抑制。接收模块可以采用基站的接收器实现。
发送模块320用于向终端发送邻小区CRS辅助信息，其中，邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息，用于辅助终端针对第二制式邻小区的CRS进行干扰抑制。发送模块可以采用基站的发射器实现。
在一些实施例中，发送模块320还用于向终端发送的第二制式CRS模式信息，其中，第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
在一些实施例中，发送模块320还用于向终端发送第五指示信息，其中，第五指示信息用于指示终端开启第二制式邻小区的CRS的干扰抑制功能。
具体各种信息的内容和形式可以参考前述干扰方法的实施例，在此不再赘述。
本公开的实施例中的通信装置(终端和/或基站)可各由各种计算设备或计算机系统来实现，下面结合图4以及图5进行描述。
图4为本公开通信装置的一些实施例的结构图。如图4所示，该实施例的装置40包括：存储器410以及耦接至该存储器410的处理器420，处理器420被配置为基于存储在存储器410中的指令，执行本公开中任意一些实施例中的干扰抑制方法。
其中，存储器410例如可以包括系统存储器、固定非易失性存储介质等。系统存储器例如存储有操作系统、应用程序、引导装载程序(Boot Loader)、数据库以及其他程序等。
图5为本公开通信装置的另一些实施例的结构图。如图5所示，该实施例的装置50包括：存储器510以及处理器520，分别与存储器410以及处理器420类似。还可以包括输入输出接口530、网络接口540、存储接口550等。这些接口530，540，550以及存储器510和处理器520之间例如可以通过总线560连接。其中，输入输出接口530为显示器、鼠标、键盘、触摸屏等输入输出设备提供连接接口。网络接口540为各种联网设备提供连接接口，例如可以连接到数据库服务器或者云端存储服务器等。存储接口550为SD卡、U盘等外置存储设备提供连接接口。
本公开还提供一种干扰抑制系统，下面结合图6进行描述。
图6为本公开干扰抑制系统的一些实施例的结构图。如图6所示，该实施例的系统包括：前述任意实施例的终端20和前述任意实施例的终端30。
本领域内的技术人员应当明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程 序代码的计算机可用非瞬时性存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解为可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅为本公开的较佳实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (30)

  1. 一种干扰抑制方法，由终端执行，包括：
    向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，所述CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的所述终端是否支持对第二制式邻小区的CRS的干扰抑制；
    接收所述基站发送的邻小区CRS辅助信息，其中，所述邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息；
    根据所述邻小区CRS辅助信息进行干扰抑制。
  2. 根据权利要求1所述的干扰抑制方法，其中，
    所述一个或多个第二制式邻小区中每个第二制式邻小区的CRS的相关信息包括：第一指示信息和频域偏差值中至少一项，所述第一指示信息用于指示该第二制式邻小区与所述第一制式小区重叠的频谱是否频域对齐，所述频域偏差值为该第二制式邻小区与所述第一制式小区重叠的频谱的频域偏差值。
  3. 根据权利要求1或2所述的干扰抑制方法，其中，
    在所述邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的物理小区标识。
  4. 根据权利要求1-3任一项所述的干扰抑制方法，还包括：
    接收所述基站发送的第二制式CRS模式信息，其中，所述第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
  5. 根据权利要求4所述的干扰抑制方法，其中：
    在所述第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数，
    每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，所述每个第二制式邻小区的CRS 的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数。
  6. 根据权利要求4或5所述的干扰抑制方法，其中：
    在所述第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、多播广播单频网络MBSFN子帧配置、CRS端口数和物理小区标识模6余数，
    每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，所述每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
  7. 根据权利要求5或6所述的干扰抑制方法，其中，
    所述索引标识与所述多个CRS的配置信息中各个CRS配置信息的索引顺序相对应。
  8. 根据权利要求1-7任一项所述的干扰抑制方法，其中，
    每个第二制式邻小区的CRS的相关信息包括：第三指示信息，用于指示该第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息；或者，
    所述邻小区CRS辅助信息还包括：第四指示信息，用于指示一个或多个第二制式邻小区的CRS的相关信息是否满足网络配置的默认配置信息。
  9. 根据权利要求8所述的干扰抑制方法，其中，
    在所述第三指示信息指示该第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，或所述第四指示信息指示一个或多个第二制式邻小区的CRS的相关信息不满足网络配置的默认配置信息，所述第三指示信息或所述第四指示信息还用于隐式指示所述终端关闭第二制式邻小区的CRS的干扰抑制功能。
  10. 根据权利要求2-9任一项所述的干扰抑制方法，其中，
    所述每个第二制式邻小区的CRS的相关信息还包括：该第二制式邻小区的物理小 区标识、物理小区标识模6余数、时隙编号、双工方式指示信息、上向下子帧配比、循环前缀类型指示信息、下行载波频率、下行载波带宽、多播广播单频网络MBSFN子帧配置、CRS端口数、CRS静默指示信息中至少一项。
  11. 根据权利要求1-10任一项所述的干扰抑制方法，其中，所述根据所述邻小区CRS辅助信息进行干扰抑制包括：
    根据所述邻小区CRS辅助信息开启第二制式邻小区的CRS的干扰抑制功能，进行干扰检测和干扰抑制，其中，所述邻小区CRS辅助信息或第二制式CRS速率匹配信令隐式指示所述终端开启第二制式邻小区的CRS的干扰抑制功能。
  12. 根据权利要求1-11任一项所述的干扰抑制方法，还包括：
    接收所述基站发送的第五指示信息，其中，所述第五指示信息用于指示所述终端开启第二制式邻小区的CRS的干扰抑制功能。
  13. 根据权利要求12所述的干扰抑制方法，其中，
    所述第五指示信息通过无线接入控制RRC信令携带。
  14. 根据权利要求1-13任一项所述的干扰抑制方法，还包括：
    接收所述基站发送的邻小区CRS辅助信息释放信息；
    根据所述邻小区CRS辅助信息释放信息对已存储的所述邻小区CRS辅助信息进行删除。
  15. 根据权利要求1-14任一项所述的干扰抑制方法，其中，
    所述邻小区CRS辅助信息通过无线接入控制RRC信令携带。
  16. 根据权利要求1-15任一项所述的干扰抑制方法，其中，在所述邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的物理小区标识或该第二制式邻小区的物理小区标识模6余数。
  17. 一种干扰抑制方法，由基站执行，包括：
    接收终端上报的小区特定参考信号CRS干扰抑制的能力信息，其中，所述CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的所述终端是否支持对第二制式邻小区的CRS的干扰抑制；
    向所述终端发送邻小区CRS辅助信息，其中，所述邻小区CRS辅助信息包括：所述一个或多个第二制式邻小区的CRS的相关信息，用于辅助所述终端针对第二制式邻小区的CRS进行干扰抑制。
  18. 根据权利要求17所述的干扰抑制方法，其中，
    所述一个或多个第二制式邻小区中每个第二制式邻小区的CRS的相关信息包括：第一指示信息和频域偏差值中至少一项，所述第一指示信息用于指示该第二制式邻小区与所述第一制式小区重叠的频谱是否频域对齐，所述频域偏差值为该第二制式邻小区与所述第一制式小区重叠的频谱的频域偏差值。
  19. 根据权利要求17或18所述的干扰抑制方法，其中，
    在所述邻小区CRS辅助信息包括多个第二制式邻小区的CRS的相关信息的情况下，每个第二制式邻小区的CRS的相关信息包括：该第二制式邻小区的物理小区标识或该第二制式邻小区的物理小区标识模6余数。
  20. 根据权利要求17-19任一项所述的干扰抑制方法，还包括：
    向所述终端发送的第二制式CRS模式信息，其中，所述第二制式CRS模式信息包括：一个或多个第二制式小区对应的一个或多个CRS的配置信息。
  21. 根据权利要求20所述的干扰抑制方法，其中：
    在所述第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数，
    每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，所述每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与第二制式邻小区的CRS相对应的CRS的配 置信息，或者所述每个第二制式邻小区的CRS对应的一组相关信息还包括：该第二制式邻小区的下行载波频率、下行载波带宽、CRS端口数和物理小区标识模6余数。
  22. 根据权利要求20所述的干扰抑制方法，其中：
    在所述第二制式CRS模式信息包括多个CRS的配置信息的情况下，每个第二制式小区对应的CRS的配置信息包括：该第二制式小区的下行载波频率、下行载波带宽、多播广播单频网络MBSFN子帧配置、CRS端口数和物理小区标识模6余数，
    每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与该第二制式邻小区的CRS相对应的CRS的配置信息，或者，所述每个第二制式邻小区的CRS的相关信息包括：索引标识，用于标识与第二制式邻小区的CRS相对应的CRS的配置信息，或者所述每个第二制式邻小区的CRS对应的一组相关信息还包括：该第二制式邻小区的下行载波频率、下行载波带宽、MBSFN子帧配置、CRS端口数和物理小区标识模6余数。
  23. 根据权利要求17-22任一项所述的干扰抑制方法，其中，
    每个第二制式邻小区的CRS的相关信息包括：第三指示信息，用于指示该第二制式邻小区的CRS对应的一组相关信息是否满足网络配置的默认配置信息，或者，
    所述邻小区CRS辅助信息还包括：第四指示信息，用于指示一个或多个第二制式邻小区的CRS对应的一组或多组相关信息是否满足网络配置的默认配置信息。
  24. 根据权利要求23所述的干扰抑制方法，其中，
    在所述第三指示信息指示该第二制式邻小区的CRS对应的一组相关信息不满足网络配置的默认配置信息，或所述第四指示信息指示一个或多个第二制式邻小区的CRS对应的一组或多组相关信息不满足网络配置的默认配置信息，所述第三指示信息或所述第四指示信息还用于隐式指示所述终端关闭第二制式邻小区的CRS的干扰抑制功能。
  25. 根据权利要求17-24任一项所述的干扰抑制方法，还包括：
    向所述终端发送第五指示信息，其中，所述第五指示信息用于指示所述终端开启第二制式邻小区的CRS的干扰抑制功能。
  26. 一种终端，包括：
    发送模块，用于向基站上报小区特定参考信号CRS干扰抑制的能力信息，其中，所述CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的所述终端是否支持对第二制式邻小区的CRS的干扰抑制；
    接收模块，用于接收所述基站发送的邻小区CRS辅助信息，其中，所述邻小区CRS辅助信息包括：一个或多个第二制式邻小区的CRS的相关信息；
    干扰抑制模块，用于根据所述邻小区CRS辅助信息进行干扰抑制。
  27. 一种基站，包括：
    接收模块，用于接收终端上报的小区特定参考信号CRS干扰抑制的能力信息，其中，所述CRS干扰抑制的能力信息用于指示在第一制式与第二制式频谱重叠场景下，位于第一制式小区内的所述终端是否支持对第二制式邻小区的CRS的干扰抑制；
    发送模块，用于向所述终端发送邻小区CRS辅助信息，其中，所述邻小区CRS辅助信息包括：所述一个或多个第二制式邻小区的CRS的相关信息，用于辅助所述终端针对第二制式邻小区的CRS进行干扰抑制。
  28. 一种干扰抑制系统，包括：权利要求26所述的终端和权利要求27所述的基站。
  29. 一种通信装置，包括：
    处理器；以及
    耦接至所述处理器的存储器，用于存储指令，所述指令被所述处理器执行时，使所述处理器执行如权利要求1-25任一项所述的干扰抑制方法。
  30. 一种非瞬时性计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现权利要求1-25任一项所述方法的步骤。
PCT/CN2023/097043 2022-08-24 2023-05-30 干扰抑制方法、系统以及终端、基站 Ceased WO2024041069A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US18/873,989 US20250365752A1 (en) 2022-08-24 2023-05-30 Interference mitigation method and system, and terminal, base station
JP2025511485A JP2025526980A (ja) 2022-08-24 2023-05-30 干渉緩和の方法及びシステム、並びに端末、基地局
EP23856161.7A EP4529331A4 (en) 2022-08-24 2023-05-30 INTERFERENCE SUPPRESSION METHOD AND SYSTEM, AND TERMINAL AND BASE STATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211019904.XA CN116261222B (zh) 2022-08-24 2022-08-24 干扰抑制方法、系统以及终端、基站
CN202211019904.X 2022-08-24

Publications (1)

Publication Number Publication Date
WO2024041069A1 true WO2024041069A1 (zh) 2024-02-29

Family

ID=86679825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/097043 Ceased WO2024041069A1 (zh) 2022-08-24 2023-05-30 干扰抑制方法、系统以及终端、基站

Country Status (5)

Country Link
US (1) US20250365752A1 (zh)
EP (1) EP4529331A4 (zh)
JP (1) JP2025526980A (zh)
CN (1) CN116261222B (zh)
WO (1) WO2024041069A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015115828A1 (en) * 2014-01-29 2015-08-06 Samsung Electronics Co., Ltd. Method and equipment for processing interference signals
WO2022047747A1 (en) * 2020-09-04 2022-03-10 Qualcomm Incorporated Methods and apparatus for handling crs interference in dynamic spectrum sharing
CN114599049A (zh) * 2020-12-07 2022-06-07 中国电信股份有限公司 同频干扰的消除方法、装置、系统、新空口基站和终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9838906B2 (en) * 2013-01-18 2017-12-05 Lg Electronics Inc. Method for performing measurement through eliminating interference and terminal
WO2020034250A1 (en) * 2018-08-27 2020-02-20 Zte Corporation Method and apparatus for obtaining information from neighboring cells
EP4009551A1 (en) * 2020-12-04 2022-06-08 Samsung Electronics Co., Ltd. Electronic device performing interference cancellation and operating method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015115828A1 (en) * 2014-01-29 2015-08-06 Samsung Electronics Co., Ltd. Method and equipment for processing interference signals
WO2022047747A1 (en) * 2020-09-04 2022-03-10 Qualcomm Incorporated Methods and apparatus for handling crs interference in dynamic spectrum sharing
CN114599049A (zh) * 2020-12-07 2022-06-07 中国电信股份有限公司 同频干扰的消除方法、装置、系统、新空口基站和终端

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NOKIA, NOKIA SHANGHAI BELL: "On Necessity of Network Assistant Signalling for CRS-IM", 3GPP DRAFT; R4-2200503, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Electronic Meeting; 20220117 - 20220125, 10 January 2022 (2022-01-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052091419 *
See also references of EP4529331A4 *

Also Published As

Publication number Publication date
US20250365752A1 (en) 2025-11-27
JP2025526980A (ja) 2025-08-15
CN116261222A (zh) 2023-06-13
EP4529331A1 (en) 2025-03-26
CN116261222B (zh) 2024-03-19
EP4529331A4 (en) 2025-10-08

Similar Documents

Publication Publication Date Title
US9391743B2 (en) Method and apparatus for defining HARQ functionality for cells having different time division duplex subframe configurations
US11013026B2 (en) Data transmission method, terminal and network-side device
US20240196388A1 (en) Transmission processing method and apparatus, and device
US11102745B2 (en) Method and apparatus for downlink synchronization of broadcast signals in a wireless communication system
CN108282895A (zh) 一种随机接入方法及终端
CN111970726A (zh) 数据传输方法、装置、相关设备及存储介质
CN110278563A (zh) 确定频谱资源的方法及装置
US10708943B2 (en) Methods for configuring and receiving scheduling signaling and related devices
KR102833766B1 (ko) 보조 정보 전송 방법, 단말 장비 및 네트워크 장비
US20200260424A1 (en) Communication method and apparatus
WO2021259132A1 (zh) 测量指示方法、终端及网络侧设备
WO2019196066A1 (en) Random access response for bwp
WO2021155591A1 (zh) 随机接入方法、装置、终端、网络设备和存储介质
EP4040904B1 (en) Random access method and terminal device
KR20240065308A (ko) 가용 슬롯의 결정 방법, 장치 및 단말
WO2021073708A1 (en) Wireless communication system
JP7486611B2 (ja) 上り信号伝送方法、装置、通信ノードおよび記憶媒体
WO2020237510A1 (zh) 控制信令的检测方法、装置、设备及存储介质
WO2024041069A1 (zh) 干扰抑制方法、系统以及终端、基站
EP3637899A1 (en) Scheduling method, device and system for transmitting resources
KR102105302B1 (ko) 5g를 지원하는 이동통신 시스템 및 그 제어방법
EP4518431A1 (en) Terminal transmitter state determination method, system, base station and terminal
WO2022017466A1 (zh) 消息发送、消息接收方法、装置及通信设备
CN115189804B (zh) 一种检测接收pdcch的方法及装置
CN113365325B (zh) 数据传输方法、装置、存储介质及电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23856161

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 18873989

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2023856161

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2023856161

Country of ref document: EP

Effective date: 20241219

WWE Wipo information: entry into national phase

Ref document number: 2025511485

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 18873989

Country of ref document: US