WO2014000244A1 - 公共参考信号的干扰消除方法、装置和系统 - Google Patents

公共参考信号的干扰消除方法、装置和系统 Download PDF

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Publication number
WO2014000244A1
WO2014000244A1 PCT/CN2012/077827 CN2012077827W WO2014000244A1 WO 2014000244 A1 WO2014000244 A1 WO 2014000244A1 CN 2012077827 W CN2012077827 W CN 2012077827W WO 2014000244 A1 WO2014000244 A1 WO 2014000244A1
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WO
WIPO (PCT)
Prior art keywords
cell
interference cancellation
micro
information
base station
Prior art date
Application number
PCT/CN2012/077827
Other languages
English (en)
French (fr)
Inventor
吴联海
常宁娟
徐海博
Original Assignee
富士通株式会社
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 富士通株式会社 filed Critical 富士通株式会社
Priority to PCT/CN2012/077827 priority Critical patent/WO2014000244A1/zh
Priority to EP12880211.3A priority patent/EP2869616A4/en
Priority to JP2015518761A priority patent/JP2015523021A/ja
Priority to KR1020147035821A priority patent/KR20150020587A/ko
Priority to CN201280072706.8A priority patent/CN104272782A/zh
Publication of WO2014000244A1 publication Critical patent/WO2014000244A1/zh
Priority to US14/566,009 priority patent/US20150092666A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W16/10—Dynamic resource partitioning
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2211/00—Orthogonal indexing scheme relating to orthogonal multiplex systems
    • H04J2211/001—Orthogonal indexing scheme relating to orthogonal multiplex systems using small cells within macro cells, e.g. femto, pico or microcells
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, apparatus and system for interference cancellation of a common reference signal. Background technique
  • the system is upgraded by deploying small power base stations, such as a Pico base station, a femto base station, a remote radio head (RRH), and a relay node. Capacity or extended coverage.
  • small power base stations such as a Pico base station, a femto base station, a remote radio head (RRH), and a relay node. Capacity or extended coverage.
  • Figure 1 is a schematic diagram of a heterogeneous network architecture. As shown in Figure 1, if the Pico Cell uses the RE (Range Expansion) technology, the downlink transmission of the macro base station (Macro eNB) will be applied to the micro base station.
  • RE Range Expansion
  • ABS Almost Blank Subframe
  • the common reference signal (CRS, Common Reference Signal) of the macro base station is transmitted at normal power, thereby causing strong interference to the micro cell.
  • the micro base station notifies the related information of the interference source through the RRC (Radio Resource Control) signaling to the user equipment (UE) capable of interference cancellation, and the UE will use the information to demodulate the data. Interference cancellation is performed during measurement.
  • RRC Radio Resource Control
  • the inventors have found that for a CRS collision scenario of a neighboring cell and a micro cell, a UE (ie, a Pico victim UE) that is strongly interfered by a macro base station at a micro cell edge performs a serving cell radio resource management (RRM, Radio Resource).
  • RRM Radio Resource
  • the interference cancellation is performed based on the interference source information notified by the micro cell.
  • the neighboring cell UE there is currently no effective method for CRS interference cancellation.
  • An embodiment of the present invention provides a method, an apparatus, and a system for canceling interference of a common reference signal.
  • the micro cell may notify the neighboring cell of the interference cancellation auxiliary information, and the neighboring cell configures the auxiliary information to the user equipment of the local cell, so that the local device
  • the cell user equipment performs CRS interference cancellation according to the auxiliary information to avoid the problem that the handover is too late.
  • an interference cancellation method for a common reference signal includes:
  • the micro cell notifies the neighboring cell of the interference cancellation assistance information
  • the interference cancellation assistance information includes first related information of a neighboring cell that causes interference to the micro cell, or a neighboring cell that collides with a common reference signal of the micro cell in a neighboring cell that interferes with the micro cell The second relevant information of the cell.
  • an interference cancellation method for a common reference signal comprising:
  • the neighboring cell adjacent to the micro cell receives the interference cancellation assistance information notified by the micro cell;
  • the interference cancellation assistance information includes first related information of a neighboring cell that causes interference to the micro cell, or a neighboring cell that collides with a common reference signal of the micro cell in a neighboring cell that interferes with the micro cell Second relevant information of the cell;
  • the interference cancellation assistance information is notified to the user equipment of the cell that has interference cancellation capability.
  • an interference cancellation method for a common reference signal comprising:
  • the user equipment of the neighboring cell that is adjacent to the micro cell receives the interference cancellation assistance information that is notified by the neighboring cell, where the interference cancellation assistance information includes the first related information of the neighboring cell that interferes with the micro cell, or includes The second related information or the third related information of the neighboring cell colliding with the common reference signal of the micro cell in the neighboring cell that interferes with the micro cell;
  • the user equipment performs interference cancellation of the common reference signal according to the interference cancellation auxiliary information when performing radio resource management measurement on the micro cell.
  • a micro base station includes: a first notification unit, where the first notification unit is configured to notify the neighboring cell of the interference cancellation assistance information, where the interference cancellation
  • the auxiliary information includes first related information of the neighboring cell that interferes with the micro cell, or a second related information of the neighboring cell that collides with the common reference signal of the micro cell in the neighboring cell that interferes with the micro cell Interest.
  • a base station is provided, where the base station is a base station of a neighboring cell adjacent to the micro cell, and the base station includes:
  • the first receiving unit is configured to receive the interference cancellation assistance information of the micro cell notification, where the interference cancellation assistance information includes the first related information of the neighboring cell that generates interference to the micro cell, or includes a second related information of a neighboring cell colliding with a common reference signal of the micro cell in a neighboring cell that interferes with the micro cell;
  • a second notification unit configured to notify the user equipment of the base station that has the interference cancellation capability to the interference cancellation assistance information.
  • a user equipment which has an interference cancellation capability, and the user equipment belongs to a neighboring cell adjacent to a micro cell, and the user equipment includes:
  • the second receiving unit is configured to receive interference cancellation assistance information that is notified by the neighboring cell, where the interference cancellation assistance information includes first related information of a neighboring cell that interferes with the micro cell, or And including, in a neighboring cell that interferes with the micro cell, second related information or third related information of a neighboring cell that collides with a common reference signal of the micro cell;
  • a first processing unit configured to: perform interference cancellation of a common reference signal according to the interference cancellation auxiliary information when performing radio resource management measurement on the micro cell.
  • a heterogeneous network system includes: a micro base station, configured to notify an adjacent cell to the interference cancellation assistance information; where the interference cancellation assistance information includes a small The first related information of the neighboring cell that generates the interference, or the second related information of the neighboring cell that collides with the common reference signal of the micro cell in the neighboring cell that interferes with the micro cell;
  • a macro base station and/or another micro base station adjacent to the micro base station configured to receive interference cancellation assistance information notified by the micro base station, and notify the user equipment with interference cancellation capability in the cell by using the interference cancellation assistance information;
  • a user equipment configured to receive interference cancellation assistance information notified by a macro base station and/or another micro base station adjacent to the micro base station, and perform interference cancellation assistance information according to the interference when performing radio resource management measurement on the micro cell Perform interference cancellation for common reference signals.
  • a computer readable program wherein when the program is executed in a micro base station, the program causes a computer to perform interference of the common reference signal in the micro base station The method of elimination.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference cancellation of the common reference signal in a micro base station.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform a method of interference cancellation of the common reference signal in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference cancellation of the common reference signal in a base station.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform interference cancellation of the common reference signal in the user equipment method.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference cancellation of the common reference signal described above in a user equipment.
  • the micro cell can notify the neighboring cell of the interference cancellation auxiliary information, so that after the neighboring cell receives the interference cancellation auxiliary information, it configures the user equipment with the interference cancellation capability of the cell.
  • the UE performs the RRM measurement, the interference cancellation is performed according to the interference cancellation auxiliary information, and the problem that the handover is too late is avoided.
  • FIG. 1 is a schematic diagram of a heterogeneous network architecture
  • Embodiment 3 is a flowchart of an interference cancellation method according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic diagram showing the structure of a micro base station according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of an information acquiring unit in Embodiment 4 of the present invention.
  • FIG. 6 is a schematic diagram showing the structure of a base station according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention.
  • Figure 8 is a schematic diagram showing the structure of a first processing unit in Embodiment 6;
  • FIG. 9 is a schematic diagram of a heterogeneous network architecture according to Embodiment 7 of the present invention.
  • Figure 10 is a flow chart showing an interference cancellation method according to Embodiment 8 of the present invention. detailed description
  • the UE is subjected to strong interference and is at the edge of the micro cell.
  • the embodiment 1 of the present invention provides a CRS interference cancellation method, where the method includes: the micro cell notifying the neighboring cell of the interference cancellation assistance information; wherein the interference cancellation assistance information includes a first correlation of the neighboring cell that interferes with the micro cell.
  • the neighboring cell After the neighboring cell receives the interference cancellation assistance information, it configures the interference cancellation to the local cell.
  • the UE performs interference cancellation according to the interference cancellation auxiliary information when performing RRM measurement, thereby avoiding the problem that the handover is too late.
  • the first related information and the second related information include: a cell identifier, a number of antenna ports, and a multicast broadcast single frequency network (MBSFN) frame configuration information.
  • MSSFN multicast broadcast single frequency network
  • the first related information is referred to as interference source neighbor cell set information; and the second related information is referred to as CRS collision neighbor cell set information.
  • the interference cancellation assistance information may be notified to the neighboring cell through the X2 interface of the micro cell base station.
  • the method before the micro cell transmits the interference cancellation assistance information to the neighboring cell, the method further includes: acquiring the interference cancellation assistance information.
  • the acquiring the first related information includes: determining, by the micro cell, the neighboring cell that interferes with the micro cell, that is, the neighboring cell of the interference source, according to the measurement result reported by the user equipment of the cell, to obtain the first related information; And the micro cell notifying the neighboring cell of the interference cancellation auxiliary information is: notifying the neighboring cell of the determined first related information of the neighboring cell, and notifying the neighboring cell of the interference source neighboring cell set information.
  • the neighboring cell may be a macro cell in a heterogeneous network, or may be another micro cell in a heterogeneous network.
  • the acquiring the second related information includes: determining, by the micro cell, a neighboring cell that interferes with the micro cell according to the measurement result reported by the user equipment of the cell, that is, an interference source neighboring cell; and selecting, in the neighboring cell of the interference source a neighboring cell that collides with a common reference signal of the micro cell, that is, a CRS collides with a neighboring cell set to obtain the second related information;
  • micro cell notifies the neighboring cell of the interference cancellation assistance information to: notify the neighboring cell of the second related information of the neighboring cell that collides with the common reference signal of the micro cell, that is, notify the neighboring cell by the CRS collision neighbor cell set information.
  • the micro cell not only notifies the neighboring cell of the interference cancellation assistance information, but also notifies the UE that the cell has interference cancellation capability.
  • Step 201 A neighboring cell adjacent to a micro cell receives interference cancellation assistance information notified by a micro cell; the interference cancellation assistance information includes a first correlation of a neighboring cell that interferes with the micro cell. Information, or package a second related information of a neighboring cell colliding with a common reference signal of the micro cell in a neighboring cell that interferes with the micro cell;
  • Step 202 The interference cancellation assistance information is notified to the user equipment that has the interference cancellation capability in the local cell.
  • the interference cancellation assistance information may be included in the CellsToAddMod (IE, Information Element) cell. Sending by UE with interference cancellation capability;
  • the neighboring cell adjacent to the micro cell directly informs the UE of the local cell of the first related information or the second related information to perform the UE of the local cell.
  • the neighboring cell adjacent to the micro cell may first select a neighbor cell that collides with the common reference signal of the micro cell according to the first related information;
  • the third related information of the neighboring cell colliding with the common reference signal of the micro cell informs the local cell that the interference cancellation capability is
  • the interference cancellation assistance information is as described in Embodiment 1, and details are not described herein again.
  • the neighboring cell adjacent to the micro cell may be a macro cell or other micro cells.
  • FIG. 3 is a flow chart of a method for canceling interference of a common reference signal according to Embodiment 3 of the present invention. As shown in FIG. 3, for a user equipment with interference cancellation capability, the method includes:
  • Step 301 The user equipment of the neighboring cell adjacent to the micro cell receives the interference cancellation assistance information notified by the neighbor cell, where the interference cancellation assistance information includes first related information of the neighbor cell that interferes with the micro cell, or includes In the neighboring cell that interferes with the micro cell, the second related information or the third related information of the neighboring cell that collides with the common reference signal of the micro cell;
  • Step 302 The user equipment performs interference cancellation of the common reference signal according to the interference cancellation auxiliary information when performing radio resource management measurement on the micro cell.
  • step 301 when the interference cancellation assistance information includes the first related information, in step 302, the UE first selects a cell that collides with the common reference signal of the micro cell according to the first related information; and then removes the selected one. The cell interferes with the common reference signal of the micro cell.
  • step 301 when the interference cancellation assistance information includes the second related information or the third related information, in step 302, the UE cancels all cells in the second related information or the third related information to the micro cell. interference.
  • the interference source neighbor cell set information or the CRS collision neighbor cell set information that the micro cell will acquire is known. And notifying the neighboring cell adjacent to the micro cell, and the neighboring cell adjacent to the micro cell may receive the information to the interference of the cell after receiving the interference source neighbor cell set information or the CRS collision neighbor cell set information.
  • the user equipment of the capability is eliminated, so that when the user equipment performs RRM measurement on the micro cell, the CRS interference cancellation can be performed according to the information, and the problem that the handover is too late can be avoided.
  • the embodiment of the invention further provides a micro base station, a base station and a user equipment, as described in the following embodiments.
  • the method for solving the problem is similar to the foregoing method for eliminating interference based on the above-mentioned micro base station, base station, and user equipment. Therefore, the implementation of the micro base station, the base station, and the user equipment can be referred to the implementation of the method. No longer.
  • the micro base station 400 includes: a first notification unit 401, where the first notification unit 401 is configured to notify the neighboring cell of the interference cancellation assistance information;
  • the interference cancellation assistance information includes first related information of a neighboring cell that interferes with the micro cell, or a second correlation of the neighboring cell that collides with the common reference signal of the micro cell in the neighboring cell that interferes with the micro cell. information.
  • the micro-base station 400 notifies the neighboring cell of the interference cancellation assistance information by the first notification unit 401, so that the neighboring cell configures the interference cancellation assistance information to the user equipment with the interference cancellation capability in the local cell, so that the cell has interference.
  • the user equipment that eliminates the capability performs RRM measurement on the micro cell, the interference is eliminated according to the related information, and the existing problems are solved, and the problem that the handover is too late can be avoided.
  • the first related information and the second related information include: a cell identifier, an antenna port number, and a multicast/broadcast single frequency network (MBSFN) frame configuration information.
  • MBSFN multicast/broadcast single frequency network
  • the micro base station 400 may further include: an information acquiring unit 402, where the information acquiring unit 402 is configured to acquire the interference cancellation auxiliary information.
  • the information acquiring unit 402 is specifically configured to determine, according to the measurement result reported by the user equipment of the micro-base station, the neighboring cell that interferes with the micro cell, so that the first related information is obtained;
  • the first notification unit 401 is further configured to notify the neighboring cell of the first related information of the neighboring cell determined by the information acquiring unit 402.
  • the information obtaining unit 402 is configured to acquire the second related information, which is configured as shown in FIG. 5.
  • Figure 5 is a block diagram showing the structure of an information acquisition unit in Embodiment 4 of the present invention.
  • the information obtaining unit 402 includes: a first determining unit 501 and a first selecting unit 502;
  • the first determining unit 501 is configured to determine, according to the measurement result reported by the user equipment of the micro-base station, the neighboring cell that generates interference to the micro cell, to obtain the first related information.
  • a first selecting unit 502 configured to select, in a neighboring cell that interferes with the micro cell determined by the first determining unit 501, a neighboring cell that collides with a common reference signal of the micro cell to obtain the second related information
  • the first notification unit 401 is further configured to notify the neighboring cell of the second related information of the neighboring cell that collides with the common reference signal of the micro cell.
  • the first related information may be referred to as the interference source neighboring cell set information
  • the second related information is referred to as the CRS collision neighboring cell set information, and details are not described herein again.
  • the micro base station 400 acquires the interference cancellation assistance information by using the information acquisition unit 402, and notifies the neighboring cell of the interference cancellation related information, so that the neighboring cell configures the interference cancellation assistance information to the cell with interference cancellation capability.
  • the user equipment enables the user equipment with interference cancellation capability in the cell to perform interference cancellation according to the interference cancellation auxiliary information when performing RRM measurement on the micro cell, and solves the existing problem, and avoids the problem that the handover is too late.
  • Fig. 6 is a block diagram showing the configuration of a base station according to a fifth embodiment of the present invention.
  • the base station 600 is a base station of a neighboring cell adjacent to the micro cell, and may be a macro base station or a micro base station. As shown in FIG. 6, the base station 600 includes: a first receiving unit 601 and a second notifying unit 602;
  • the first receiving unit 601 is configured to receive the interference cancellation assistance information of the micro cell notification, where the interference cancellation assistance information includes the first related information of the neighboring cell that interferes with the micro cell, or includes interference in the micro cell.
  • the second related information of the neighboring cell that collides with the common reference signal of the micro cell the second notifying unit 602 is configured to notify the user equipment of the neighboring cell with the interference cancellation capability of the interference cancellation assistance information.
  • the base station 600 when the interference cancellation assistance information includes the first related information, the base station 600 further includes: a second selection unit (not shown), the second selection unit is configured to perform interference cancellation on receiving the micro cell notification After the auxiliary information, selecting a neighboring cell that collides with the common reference signal of the micro cell according to the first related information, to obtain third related information;
  • the second notification unit 602 is further configured to notify the selected user equipment of the neighboring cell that collides with the common reference signal of the micro cell to the user equipment that has the interference cancellation capability in the local cell.
  • the third related information obtained by the base station 600 in the above case may also be referred to as CRS collision neighbor cell set information, and the third related information is the same as the second related information determined by the micro cell.
  • the interference cancellation assistance information may be included in a Cel lsToAddMod cell.
  • the base station 600 of the cell adjacent to the micro base station 400 receives the interference cancellation assistance information notified by the micro base station by using the first receiving unit 601, and the second notification unit 602 of the base station 600 configures the interference cancellation assistance information to
  • the user equipment with interference cancellation capability in the cell enables the user equipment with interference cancellation capability in the cell to perform interference elimination according to the related information when performing RRM measurement on the micro area, and solves the existing problems, and avoids switching too late. The problem.
  • the base station may be a macro base station or other micro base station adjacent to the micro base station.
  • FIG. 7 is a block diagram showing the structure of a user equipment according to Embodiment 6 of the present invention.
  • the user equipment has interference cancellation capability, and is a user equipment of a neighboring cell adjacent to the micro cell, that is, a macro cell UE or other micro cell UE.
  • the user equipment 700 includes: a second receiving unit 701 and a first processing unit 702;
  • the second receiving unit 701 is configured to receive the interference cancellation assistance information that is notified by the neighboring cell, where the interference cancellation assistance information includes the first related information of the neighboring cell that interferes with the micro cell, or is included in the micro cell.
  • the first processing unit 702 is configured to perform interference cancellation of the common reference signal according to the interference cancellation auxiliary information when performing radio resource management measurement on the micro cell.
  • the first processing unit 702 is further configured to cancel all the cells in the second related information and the third related information to the micro District interference.
  • the first processing unit 702 may include: a third selection unit 801 and a first cancellation unit 802;
  • the third selecting unit 801 is configured to select, according to the first related information, a cell that collides with the common reference signal of the micro cell, and the first canceling unit 802 is configured to cancel the cell selected by the third selecting unit 801 to the micro cell. interference.
  • the standby 700 receives the interference cancellation assistance information notified by the base station of the local cell, and performs interference cancellation according to the related information when the user equipment 700 performs RRM measurement on the micro cell, thereby solving the existing problem and avoiding the handover. Too late.
  • Figure 9 is a block diagram showing the structure of a heterogeneous network system according to Embodiment 7 of the present invention. As shown in FIG. 9, the system includes: a micro base station 901; a base station adjacent to the micro base station 901, and a user equipment of a cell adjacent to the micro base station 901.
  • the micro base station 901 is configured to notify the neighboring cell of the interference cancellation assistance information, where the interference cancellation assistance information includes first related information of the neighboring cell that interferes with the micro cell, or includes a neighboring cell that interferes with the micro cell. a second related information of the neighboring cell colliding with the common reference signal of the micro cell;
  • the base station adjacent to the micro base station 901 is configured to receive the interference cancellation assistance information notified by the micro base station 901, and notify the user equipment with interference cancellation capability in the cell according to the interference cancellation assistance information;
  • a user equipment configured to receive interference cancellation assistance information notified by the base station adjacent to the micro base station, and perform interference cancellation of the common reference signal according to the interference cancellation assistance information when performing radio resource management measurement on the micro cell.
  • the base station adjacent to the micro base station 901 may be a macro base station, as shown in FIG. 9, such as the macro base station 902', or as shown in FIG. 9, other micro base stations, such as 902", may also be included.
  • the number of micro base stations 902" may be one or more.
  • the user equipment UE of the cell adjacent to the micro base station may include the macro cell UE 903 ', or the user equipment of the cell adjacent to the micro base station may include the macro cell UE 903 'and other micro cell UE 903 ′′.
  • micro base station 901 the base station adjacent to the micro base station, and the user equipment are configured as described in Embodiments 4, 5, and 6, and details are not described herein again.
  • the micro cell is 901, the UE 903 of the micro cell; the cell adjacent to the micro cell may include a macro cell and other micro cells, and only one other micro cell is drawn in the figure, but the number thereof Not limited to one, there may be more than one, correspondingly including macro base station 902 ', macro cell UE 903 '; other micro base stations, such as 902", other micro base station UE, such as 903".
  • the first related information is referred to as an interference source neighbor cell set information
  • the second related information is referred to as a first CRS collision neighbor cell set information
  • the third related information is referred to as a second CRS collision. Neighbor cell set information.
  • FIG. 10 is a flowchart of an interference cancellation method according to Embodiment 8 of the present invention.
  • the small area 901 is notified to the neighboring small The area interferes with the neighbor cell set information, and the cell adjacent to the micro cell informs the UE of the UE interference source neighbor cell set information as an example for description.
  • the method includes:
  • Step 1001 The user equipment UE reports to the base station of the cell to which it has the CRS interference cancellation capability.
  • the UE 903, 903 of the micro cell, and the UE of the macro cell report to the respective micro base station 901/902 and the macro base station 902 ' Whether it has CRS interference cancellation capability.
  • Step 1002 The micro cell 901 acquires interference cancellation assistance information.
  • the micro cell 901 determines, according to the measurement result reported by the user equipment 903 of the cell, the neighboring cell that interferes with the micro cell 901, that is, the interference source neighbor cell;
  • the neighboring cell of the interference source may include one or more neighboring cells, which is called an "interference source neighboring cell set”. After determining the neighboring cell of the interference source, information about the neighboring cell of the interference source may be obtained, which is called “interference source”. Neighbor cell set information";
  • the micro base station 901 uses the "interference source neighbor cell set information" as the interference cancellation auxiliary information, and the information contained in the interference source neighbor cell set information is as described in the foregoing embodiment, and details are not described herein again.
  • Step 1003 The micro base station 901 notifies the neighboring cell of the interference cancellation assistance information, where the interference cancellation assistance information is “interference source neighbor cell set information”;
  • the micro base station 901 may notify the interference cancellation assistance information through the X2 interface, where the neighboring cell may be a macro cell or other micro cell;
  • the micro base station 901 can also configure the interference cancellation assistance information to the UE having the interference cancellation capability in the current cell, so that the UE having the interference cancellation capability in the current cell performs interference cancellation according to the interference cancellation assistance information.
  • Step 1004 The base station of the neighboring cell receives the interference cancellation assistance information notified by the micro cell 901.
  • the macro base station 902' and the other micro base stations 902 "receive the interference cancellation assistance information.
  • Step 1005 The base station of the neighboring cell notifies the local cell UE of the interference cancellation assistance information
  • the UE in the local cell has interference cancellation capability, and may be a macro cell UE 903 ' or other micro cell UE 903 ";
  • the neighboring cell base station may perform the neighboring cell measurement configuration on the UE of the local cell, and configure the interference cancellation assistance information to the UE of the local cell, and then send the information to the UE of the local cell;
  • the interference cancellation auxiliary information is included in Cel lsToAddMod IE or other IE;
  • the neighboring cell base station may also send the interference cancellation assistance information through other signaling.
  • Step 1006 The user equipment UE of the neighboring cell receives the interference cancellation assistance information notified by the neighboring cell; for example, the macro cell UE 903 'receives the interference cancellation assistance information notified by the macro base station 902', and the other micro cell UE 903 "receives the micro base station 902. "Notification of interference cancellation assistance information.
  • Step 1007 The user equipment UE of the neighboring cell performs interference cancellation according to the interference cancellation auxiliary information when performing RRM measurement on the micro cell.
  • the user equipment UE of the neighboring cell first selects a cell that collides with the CRS of the micro cell according to the interference cancellation assistance information; and then cancels the selected interference of the cell to the micro cell.
  • Step 1008 The user equipment UE of the neighboring cell reports the measurement result.
  • this step is an optional step.
  • the micro base station 901 can obtain the interference source neighbor cell set information, and notify the cell adjacent to the micro cell where the micro base station 901 is located as the interference cancellation assistance information (the macro cell or other micro cells).
  • the cell adjacent to the micro cell informs the user equipment with the interference cancellation capability of the interference cancellation assistance information, and when the user equipment performs RRM measurement on the micro cell, the interference cancellation can be performed according to the related information, and the interference is solved.
  • the existing problems can avoid the problem of switching too late.
  • Embodiment 9 of the present invention further provides an interference cancellation method, which is the same as that of Embodiment 8, and is omitted here, and only the differences between the present embodiment and Embodiment 8 will be described in detail.
  • the difference from the embodiment 8 is that, in the step 1002, when the micro-region acquires the interference cancellation assistance information, the method specifically includes:
  • the micro cell determines, according to the measurement result reported by the user equipment of the local cell, the neighboring cell that interferes with the micro cell, that is, the neighboring cell of the interference source; and selects the neighboring cell that collides with the CRS of the micro cell in the neighboring cell of the interference source, that is, the CRS collision
  • the neighboring cell set refers to the information as "first CRS collision neighbor cell set information", and the first CRS collision neighbor cell set information is used as the interference cancellation auxiliary information.
  • steps 1005 and 1006 what is notified in steps 1005 and 1006 is "first CRS collision neighbor cell set information".
  • Embodiment 9 the difference from Embodiment 8 is that, when interference cancellation is performed in step 1007, the UE cancels interference of all cells in the first CRS collision neighbor cell set information to the micro cell.
  • the micro cell notifies the neighboring cell adjacent to the micro cell with the acquired second CRS collision neighbor cell set information, and the neighbor cell adjacent to the micro cell receives the second CRS collision neighbor cell set information.
  • the foregoing information may be configured to the user equipment of the local cell with interference cancellation capability, so that the user equipment is in the micro
  • CRS interference cancellation can be performed based on the information, and the problem of switching too late can be avoided.
  • Embodiment 10 of the present invention further provides an interference cancellation method, which is the same as that of Embodiment 8, and the description thereof is omitted. Only the different indications of the present embodiment and Embodiment 8 will be described in detail.
  • the base station of the neighboring cell selects the neighboring cell that collides with the CRS of the micro cell in the "interference source neighbor cell set information" after receiving the interference cancellation auxiliary information notified by the micro cell.
  • the neighboring cell that collides the CRS is referred to as a "second CRS collision neighboring cell set", and the corresponding information is "second CRS collision neighboring cell set information”.
  • the neighboring cell base station informs the user equipment UE with the interference cancellation capability of the current CRS collision neighbor cell set information.
  • Embodiment 10 the difference from Embodiment 8 is that, when interference cancellation is performed in step 1007, the UE cancels interference of all cells in the first CRS collision neighbor cell set information to the micro cell.
  • the micro cell notifies the neighbor cell adjacent to the micro cell, and the neighbor cell adjacent to the micro cell receives the information about the neighbor cell of the interference source.
  • the CRS collides with the neighboring cell set, and configures the second CRS collision neighbor cell set information to the user equipment of the local cell with interference cancellation capability, so that the user equipment can perform CRS interference cancellation according to the information when performing RRM measurement on the micro cell. , to avoid switching too late.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a micro base station, the program causes a computer to perform the method in the micro base station as described in Embodiment 1, Embodiment 8-10 A method of interference cancellation of a common reference signal.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference of a common reference signal as described in Embodiment 1, Embodiment 8-10 in a micro base station The method of elimination.
  • Embodiments of the present invention also provide a computer readable program, wherein when the program is executed in a base station, the program causes a computer to perform a common reference in the base station as described in Embodiment 2, Embodiment 8-10 A method of signal interference cancellation.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference cancellation of a common reference signal as described in Embodiment 2 and Embodiment 8-10 in a base station Methods.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment The program causes the computer to perform a method of interference cancellation of the common reference signal of Embodiment 3, Embodiments 8-10 in the user equipment.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform interference cancellation of a common reference signal as in Embodiment 3 and Embodiment 8-10 in a user equipment. method.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

一种公共参考信号的干扰消除方法、基站和系统。该方法包括：微小区将干扰消除辅助信息通知邻小区；所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻小区的第二相关信息。通过本发明实施例，可使得邻小区基站接收该干扰消除辅助信息，并将其配置给本小区的用户设备，使得本小区的具有干扰消除能力的用户设备可根据该干扰消除辅助信息进行干扰消除，以避免切换过晚的问题。

Description

公共参考信号的干扰消除方法、 装置和系统 技术领域
本发明涉及一种通信领域， 特别涉及一种公共参考信号的干扰消除方法、装置和 系统。 背景技术
在异构网络中， 通过布署小功率基站， 如微 （Pico) 基站、 毫微微蜂 （Femto) 基站、 远端无线头 （RRH， Remote Radio Head )、 中继 （Relay)节点等来提升系统容 量或者扩展覆盖。
图 1是异构网网络架构示意图。 如图 1所示， 如果微小区 （Pico Cell) 运用了覆 盖扩展 （RE， Range Expansion) 技术， 宏基站 （Macro eNB) 的下行传输将对微基站
(Pico eNB) 的下行传输产生强干扰。 通过在宏基站侧配置下行几乎空子帧 （ABS， Almost Blank Subframe), 微小区用户设备 （Pico UE) 被调度在几乎空子帧上进行下 行接收， 这样可避免宏基站对 Pico UE的下行强干扰。 ABS是指以降低功率发送信号 的子帧。
在几乎空子帧方案中， 宏基站的公共参考信号（CRS， Common Reference Signal) 会以正常功率发送， 从而会对微小区产生强干扰。 在此场景下， 微基站会将干扰源的 相关信息通过无线资源控制 （RRC， Radio Resource Control) 信令通知有能力进行干 扰消除的用户设备（UE)，该 UE将利用这些信息在数据解调和测量时进行干扰消除。
在实现本发明的过程中发明人发现， 对于邻小区和微小区的 CRS碰撞场景， 处 于微小区边缘受宏基站强干扰的 UE (即 Pico victim UE)进行服务小区无线资源管理 (RRM, Radio Resource Management)测量时， 会根据微小区通知的干扰源信息进行 干扰消除。 但对于邻小区 UE， 目前没有有效进行 CRS干扰消除的方法。
应该注意， 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明， 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容 本发明实施例的目的在于提供一种公共参考信号的干扰消除方法、 装置和系统， 微小区可将干扰消除辅助信息通知邻小区，并且邻小区将该辅助信息配置给本小区用 户设备， 使得本小区用户设备根据该辅助信息进行 CRS干扰消除， 以避免出现切换太 晚的问题。
根据本发明实施例的一个方面提供了一种公共参考信号的干扰消除方法， 所述方 法包括：
微小区将干扰消除辅助信息通知邻小区；
所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息。
根据本发明实施例的另一个方面提供了一种公共参考信号的干扰消除方法， 所述 方法包括：
与微小区相邻的邻小区接收微小区通知的干扰消除辅助信息；
所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息；
将所述干扰消除辅助信息通知本小区具有干扰消除能力的用户设备。
根据本发明实施例的另一个方面提供了一种公共参考信号的干扰消除方法， 所述 方法包括：
与微小区相邻的邻小区的用户设备接收所述邻小区通知的干扰消除辅助信息；其 中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息或者第三相关信息；
所述用户设备在对所述微小区进行无线资源管理测量时，根据所述干扰消除辅助 信息进行公共参考信号的干扰消除。
根据本发明实施例的另一个方面提供了一种微基站， 所述微基站包括： 第一通知单元， 所述第一通知单元用于将干扰消除辅助信息通知邻小区； 其中， 所述干扰消除辅助信息包括对微小区产生干扰的邻小区的第一相关信息、或者包括在 对微小区产生干扰的邻小区中，与微小区的公共参考信号碰撞的邻小区的第二相关信 息。
根据本发明实施例的另一个方面提供了一种基站， 所述基站为与微小区相邻的邻 小区的基站， 所述基站包括：
第一接收单元， 所述第一接收单元用于接收微小区通知的干扰消除辅助信息； 其 中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息；
第二通知单元，所述第二通知单元用于将所述干扰消除辅助信息通知所属基站的 具有干扰消除能力的用户设备。
根据本发明实施例的另一个方面提供了一种用户设备， 具有干扰消除能力， 所述 用户设备归属于与微小区相邻的邻小区， 所述用户设备包括：
第二接收单元， 所述第二接收单元用于接收所属邻小区通知的干扰消除辅助信 息； 其中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信 息、或者包括在对所述微小区产生干扰的邻小区中， 与所述微小区的公共参考信号碰 撞的邻小区的第二相关信息或者第三相关信息；
第一处理单元， 所述第一处理单元用于在对所述微小区进行无线资源管理测量 时， 根据所述干扰消除辅助信息进行公共参考信号的干扰消除。
根据本发明实施例的另一个方面提供了一种异构网系统， 所述系统包括： 微基站， 所述用于将干扰消除辅助信息通知邻小区； 其中， 所述干扰消除辅助信 息包括对微小区产生干扰的邻小区的第一相关信息、或者包括在对微小区产生干扰的 邻小区中， 与微小区的公共参考信号碰撞的邻小区的第二相关信息；
与所述微基站相邻的宏基站和 /或其他微基站， 用于接收所述微基站通知的干扰 消除辅助信息， 并将所述干扰消除辅助信息通知本小区具有干扰消除能力的用户设 备；
用户设备， 用于接收与所述微基站相邻的宏基站和 /或其他微基站通知的干扰消 除辅助信息， 并在对所述微小区进行无线资源管理测量时， 根据所述干扰消除辅助信 息进行公共参考信号的干扰消除。
根据本发明实施例的另一个方面提供了一种计算机可读程序， 其中当在微基站中 执行所述程序时，所述程序使得计算机在所述微基站中执行上述公共参考信号的干扰 消除的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算机在微基站中执行上述公共参考信号的干扰消除 的方法。
根据本发明实施例的另一个方面提供了一种计算机可读程序， 其中当在基站中执 行所述程序时，所述程序使得计算机在所述基站中执行上述公共参考信号的干扰消除 的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算机在基站中执行上述公共参考信号的干扰消除的 方法。
根据本发明实施例的另一个方面提供了一种计算机可读程序， 其中当在用户设备 中执行所述程序时，所述程序使得计算机在所述用户设备中执行上述公共参考信号的 干扰消除的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算机在用户设备中执行上述公共参考信号的干扰消 除的方法。
本发明实施例的有益效果在于：微小区可将干扰消除辅助信息通知邻小区，这样， 在邻小区接收到该干扰消除辅助信息后，将其配置给本小区的具有干扰消除能力的用 户设备， 使得该 UE在进行 RRM测量时， 根据该干扰消除辅助信息进行干扰消除， 避 免了切换太晚的问题。
参照后文的说明和附图， 详细公开了本发明的特定实施方式， 指明了本发明的原 理可以被采用的方式。应该理解， 本发明的实施方式在范围上并不因而受到限制。在 所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用， 与其它实施方式中的特征相组合， 或替代其它实施方式中的 特征。
应该强调， 术语 "包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在， 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
从以下结合附图的详细描述中， 本发明实施例的上述以及其他目的、特征和优点 将变得更加显而易见， 在附图中：
图 1是异构网网络架构示意图；
图 2是本发明实施例 2的干扰消除方法流程图；
图 3是本发明实施例 3的干扰消除方法流程图；
图 4是本发明实施例 4的微基站构成示意图；
图 5是本发明实施例 4中信息获取单元的构成示意；
图 6是本发明实施例 5的基站构成示意图；
图 7是本发明实施例 6的用户设备构成示意图；
图 8是实施例 6中第一处理单元的构成示意图；
图 9是本发明实施例 7的异构网构架示意图；
图 10是本发明实施例 8的干扰消除方法流程图。 具体实施方式
下面结合附图对本发明的各种实施方式进行说明。 这些实施方式只是示例性的， 不是对本发明的限制。为了使本领域的技术人员能够容易地理解本发明的原理和实施 方式， 本发明的实施方式以异构网的 CRS干扰消除为例进行说明， 但可以理解， 本发 明并不限于上述系统， 对于涉及 CRS干扰消除的其他系统均适用。
目前对于邻基站和微基站的 CRS碰撞场景， 受到强干扰、 处于微小区边缘的 UE
(即 Pico victim UE) 进行服务小区的 RRM测量时， 该 UE会根据该 Pico小区通知 的相关信息进行干扰消除， 但目前对于与该微基站相邻的邻小区的 UE， 在对该微小 区进行 RRM测量时， 还没有有效的方法消除 CRS干扰， 这样不可避免会产生切换太晚 的问题。
本发明实施例 1提供一种 CRS的干扰消除方法， 该方法包括： 微小区将干扰消除 辅助信息通知邻小区； 其中， 该干扰消除辅助信息包括对该微小区产生干扰的邻小区 的第一相关信息、或者包括在对该微小区产生干扰的邻小区中， 且与该微小区的公共 参考信号碰撞的邻小区的第二相关信息。
这样， 在邻小区接收到该干扰消除辅助信息后， 将其配置给本小区的具有干扰消 除能力的用户设备， 使得该 UE在进行 RRM测量时， 根据该干扰消除辅助信息进行干 扰消除， 避免了切换太晚的问题。 以下结合附图对本发明实施例进行详细说明。
在本实施例中， 该第一相关信息和第二相关信息包括： 小区标识、 天线端口数量 禾口多播 /广播单频网 (MBSFN ， Multicast Broadcast Single Frequency Network) 帧配置信息。
在本实施例中， 将该第一相关信息称为干扰源邻小区集信息； 将该第二相关信息 称为 CRS碰撞邻小区集信息。
在本实施例中， 可将该干扰消除辅助信息通过该微小区基站的 X2接口通知该邻 小区。
在本实施例中，在该微小区将干扰消除辅助信息通知邻小区之前，该方法还包括： 获取该干扰消除辅助信息。
在本实施例中， 获取第一相关信息， 包括： 该微小区根据本小区用户设备上报的 测量结果确定对微小区产生干扰的邻小区，即干扰源邻小区，以获取该第一相关信息； 并且该微小区将干扰消除辅助信息通知邻小区具体为：将确定的该邻小区的第一 相关信息通知邻小区， 即将干扰源邻小区集信息通知邻小区。其中， 该邻小区可以为 异构网中的宏小区， 也可为异构网中的其他微小区。
在本实施例中， 获取第二相关信息， 包括： 该微小区根据本小区用户设备上报的 测量结果确定对微小区产生干扰的邻小区， 即干扰源邻小区； 在该干扰源邻小区中选 择与该微小区的公共参考信号碰撞的邻小区， 即 CRS碰撞邻小区集， 以获取该第二相 关信息；
并且该微小区将干扰消除辅助信息通知邻小区具体为：将与该微小区的公共参考 信号碰撞的邻小区的第二相关信息通知邻小区，即将该 CRS碰撞邻小区集信息通知邻 小区。
此外， 在本实施例中， 该微小区不仅将该干扰消除辅助信息通知邻小区， 还将该 辅助信息通知本小区具有干扰消除能力的 UE。
图 2是本发明实施例 2的公共参考信号的干扰消除方法流程图。针对与一个微小 区相邻的邻小区， 该邻小区可为宏小区或其他微小区。 如图 2所示， 该方法包括： 步骤 201， 与微小区相邻的邻小区接收微小区通知的干扰消除辅助信息； 该干扰消除辅助信息包括对该微小区产生干扰的邻小区的第一相关信息、或者包 括在对该微小区产生干扰的邻小区中，与该微小区的公共参考信号碰撞的邻小区的第 二相关信息；
步骤 202， 将该干扰消除辅助信息通知本小区具有干扰消除能力的用户设备； 其中， 可将该干扰消除辅助信息包含在 CellsToAddMod (小区的添加和修改） 信 元 （IE， Information Element ) 中向该具有干扰消除能力的 UE发送；
当该微小区通知该第一相关信息或第二相关信息时，该与微小区相邻的邻小区将 该第一相关信息或者第二相关信息直接通知本小区的 UE, 以对本小区的 UE进行邻小 区测量配置；
此外， 当该微小区通知该第一相关信息时， 该与微小区相邻的邻小区还可先根据 该第一相关信息选择与该微小区的公共参考信号碰撞的邻小区；然后将选择的与该微 小区的公共参考信号碰撞的邻小区的第三相关信息通知本小区具有干扰消除能力的
UE。
在本实施例中， 该干扰消除辅助信息如实施例 1所述， 此处不再赘述。 该与微小 区相邻的邻小区可为宏小区， 也可为其他微小区。
图 3是本发明实施例 3的公共参考信号的干扰消除方法流程图。如图 3所示， 针 对具有干扰消除能力的用户设备， 该方法包括：
步骤 301， 与微小区相邻的邻小区的用户设备接收该邻小区通知的干扰消除辅助 信息；其中，该干扰消除辅助信息包括对该微小区产生干扰的邻小区的第一相关信息、 或者包括在对该微小区产生干扰的邻小区中，与该微小区的公共参考信号碰撞的邻小 区的第二相关信息或者第三相关信息；
步骤 302， 该用户设备在对该微小区进行无线资源管理测量时， 根据该干扰消除 辅助信息进行公共参考信号的干扰消除；
在步骤 301中， 在该干扰消除辅助信息包括第一相关信息时， 在步骤 302中， 该 UE 首先根据该第一相关信息选择与该微小区的公共参考信号碰撞的小区； 然后消除 选择的该小区对该微小区的公共参考信号干扰。
在步骤 301中， 在该干扰消除辅助信息包括第二相关信息或者第三相关信息时， 在步骤 302中， 该 UE消除该第二相关信息或第三相关信息中的所有小区对该微小区 的干扰。
由上述实施例可知，微小区将获取的干扰源邻小区集信息或 CRS碰撞邻小区集信 息通知与该微小区相邻的邻小区，该与微小区相邻的邻小区接收到该干扰源邻小区集 信息或 CRS碰撞邻小区集信息后，可将上述信息配置给本小区的具有干扰消除能力的 用户设备， 使得用户设备在对该微小区进行 RRM测量时， 可根据该信息进行 CRS干扰 消除， 可避免切换太晚的问题。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以 通过程序来指令相关的硬件完成， 所述的程序可以存储于一计算机可读取存储介质 中， 该程序在执行时， 可以包括上述实施例方法中的全部或部分步骤， 所述的存储介 质可以包括： R0M、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种微基站、 基站和用户设备， 如下面的实施例所述。 由于该微基站、基站和用户设备解决问题的原理与上述基于上述微基站、基站和用户 设备的干扰消除方法相似， 因此该微基站、基站和用户设备的实施可以参见方法的实 施， 重复之处不再赘述。
图 4是本发明实施例 4的微基站的结构示意图。如图 4所示，该微基站 400包括： 第一通知单元 401， 第一通知单元 401用于将干扰消除辅助信息通知邻小区；
其中， 该干扰消除辅助信息包括对微小区产生干扰的邻小区的第一相关信息、或 者包括在对微小区产生干扰的邻小区中，与微小区的公共参考信号碰撞的邻小区的第 二相关信息。
由上述实施例可知，微基站 400通过第一通知单元 401将干扰消除辅助信息通知 邻小区，使得邻小区将该干扰消除辅助信息配置给本小区具有干扰消除能力的用户设 备， 使得本小区具有干扰消除能力的用户设备在对该微小区进行 RRM测量时， 根据该 相关信息进行干扰消除， 解决了目前存在的问题， 可避免切换过晚的问题。
在本实施例中， 该第一相关信息和第二相关信息包括： 小区标识、 天线端口数量 和多播 /广播单频网 （MBSFN) 帧配置信息。
如图 4所示， 微基站 400还可包括： 信息获取单元 402， 信息获取单元 402用于 获取该干扰消除辅助信息。
在本实施例中，信息获取单元 402具体用于根据所属微基站的用户设备上报的测 量结果确定对微小区产生干扰的邻小区， 这样， 可获得该第一相关信息；
并且在这种情况下，第一通知单元 401进一步用于将信息获取单元 402确定的该 邻小区的第一相关信息通知邻小区。 在另一个实施例中， 信息获取单元 402用于获取该第二相关信息， 其构成如图 5 所示。
图 5是本发明实施例 4中信息获取单元的构成示意图。如图 5所示， 信息获取单 元 402包括： 第一确定单元 501和第一选择单元 502; 其中，
第一确定单元 501， 用于根据所属微基站的用户设备上报的测量结果确定对微小 区产生干扰的邻小区， 以获得该第一相关信息；
第一选择单元 502， 用于在第一确定单元 501确定的对微小区产生干扰的邻小区 中选择与微小区的公共参考信号碰撞的邻小区， 以获得该第二相关信息；
并且第一通知单元 401 进一步用于将与微小区的公共参考信号碰撞的邻小区的 第二相关信息通知邻小区。
在本实施例中，与实施例 1类似，可将该第一相关信息称为干扰源邻小区集信息， 将该第二相关信息称为 CRS碰撞邻小区集信息， 此处不再赘述。
由上述实施例可知，微基站 400通过信息获取单元 402获取该干扰消除辅助信息， 并将该干扰消除相关信息通知邻小区，使得邻小区将该干扰消除辅助信息配置给本小 区具有干扰消除能力的用户设备，使得本小区具有干扰消除能力的用户设备在对该微 小区进行 RRM测量时， 根据该干扰消除辅助信息进行干扰消除， 解决了目前存在的问 题， 可避免切换过晚的问题。
图 6是本发明实施例 5的基站构成示意图。该基站 600为与微小区相邻的邻小区 的基站， 可为宏基站也可为微基站。 如图 6所示， 基站 600包括： 第一接收单元 601 和第二通知单元 602; 其中，
第一接收单元 601， 用于接收微小区通知的干扰消除辅助信息； 其中， 该干扰消 除辅助信息包括对该微小区产生干扰的邻小区的第一相关信息、或者包括在对该微小 区产生干扰的邻小区中， 与该微小区的公共参考信号碰撞的邻小区的第二相关信息； 第二通知单元 602， 用于将该干扰消除辅助信息通知所属基站的具有干扰消除能 力的用户设备。
在本发明实施例中， 在该干扰消除辅助信息包括第一相关信息时， 基站 600还包 括： 第二选择单元 （未示出）， 该第二选择单元用于在接收微小区通知的干扰消除辅 助信息后， 根据该第一相关信息选择与该微小区的公共参考信号碰撞的邻小区， 以获 得第三相关信息； 该第二通知单元 602 进一步用于将选择的与该微小区的公共参考信号碰撞的邻 小区的第三相关信息通知本小区具有干扰消除能力的用户设备。
在本实施例中，基站 600在上述情况下获得的第三相关信息也可称为 CRS碰撞邻 小区集信息， 该第三相关信息与微小区确定的第二相关信息相同。
在本实施例中， 该干扰消除辅助信息可包含在 Cel lsToAddMod信元中。
由上述实施例可知， 与微基站 400相邻的小区的基站 600通过第一接收单元 601 接收微基站通知的干扰消除辅助信息，且基站 600的第二通知单元 602将该干扰消除 辅助信息配置给本小区具有干扰消除能力的用户设备，使得本小区具有干扰消除能力 的用户设备在对该微小区进行 RRM测量时， 根据该相关信息进行干扰消除， 解决了目 前存在的问题， 可避免切换过晚的问题。
在实施例 5中， 该基站可为与微基站相邻的宏基站或其他微基站。
图 7是本发明实施例 6的用户设备构成示意图。 该用户设备具备干扰消除能力， 为与微小区相邻的邻小区的用户设备，即为宏小区 UE或其他微小区 UE。如图 7所示， 用户设备 700包括： 第二接收单元 701和第一处理单元 702; 其中，
第二接收单元 701， 用于接收所属邻小区通知的干扰消除辅助信息； 其中， 该干 扰消除辅助信息包括对该微小区产生干扰的邻小区的第一相关信息、或者包括在对该 微小区产生干扰的邻小区中，与该微小区的公共参考信号碰撞的邻小区的第二相关信 息或者第三相关信息；
第一处理单元 702， 用于在对该微小区进行无线资源管理测量时， 根据该干扰消 除辅助信息进行公共参考信号的干扰消除。
在本实施例中， 在该干扰消除辅助信息包括第二相关信息或者第三相关信息时， 第一处理单元 702 进一步用于消除该第二相关信息和第三相关信息中的所有小区对 该微小区的干扰。
在另一个实施例中， 在该干扰消除辅助信息包括第一相关信息时， 如图 8所示， 第一处理单元 702可包括： 第三选择单元 801和第一消除单元 802; 其中，
第三选择单元 801， 用于根据该第一相关信息选择与该微小区的公共参考信号发 生碰撞的小区； 第一消除单元 802， 用于消除第三选择单元 801选择的小区对该微小 区的干扰。
由上述实施例可知，与微基站 400相邻的小区的具有 CRS干扰消除能力的用户设 备 700通过第二接收单元 701接收本小区基站通知的干扰消除辅助信息，在用户设备 700对该微小区进行 RRM测量时， 根据该相关信息进行干扰消除， 解决了目前存在的 问题， 可避免切换过晚的问题。
图 9是本发明实施例 7的异构网系统结构示意图。 如图 9所示， 该系统包括： 微 基站 901 ; 与微基站 901相邻的基站、 以及与微基站 901相邻的小区的用户设备。
其中， 微基站 901， 用于将干扰消除辅助信息通知邻小区； 其中， 该干扰消除辅 助信息包括对微小区产生干扰的邻小区的第一相关信息、或者包括在对微小区产生干 扰的邻小区中， 与微小区的公共参考信号碰撞的邻小区的第二相关信息；
与微基站 901相邻的基站， 用于接收微基站 901通知的干扰消除辅助信息， 并将 该干扰消除辅助信息通知本小区具有干扰消除能力的用户设备；
用户设备， 用于接收与该微基站相邻的基站通知的干扰消除辅助信息， 并在对该 微小区进行无线资源管理测量时，根据该干扰消除辅助信息进行公共参考信号的干扰 消除。
在本实施例中， 与微基站 901相邻的基站可为宏基站， 如图 9所示， 如宏基站 902 ' ， 或者如图 9所示， 还可包括其他微基站， 如 902 " ， 该微基站 902 "的数量可 为一个或一个以上。 相应地， 与该微基站相邻的小区的用户设备 UE 可包括宏小区 UE903 ' ， 或者与该微基站相邻的小区的用户设备可包括宏小区 UE903 ' 和其他微小 区 UE903 " 。
在本实施例中， 微基站 901、 与该微基站相邻的基站、 以及该用户设备的构成如 实施例 4、 5和 6所述， 此处不再赘述。
以下结合图 9所示的异构网对本发明的干扰消除方法进行详细说明。图 9所示的 网络系统中， 微小区为 901， 该微小区的 UE 903; 与微小区相邻的小区可包括宏小区 和其他微小区， 图中只画出一个其他微小区，但其数量不限于一个，还可为一个以上， 相应的包括宏基站 902 ' ， 宏小区 UE 903 ' ； 其他微基站， 如 902 " ， 其他微基站 UE， 如 903 " 。
在下述实施例中， 将该第一相关信息称为干扰源邻小区集信息， 将该第二相关信 息称为第一 CRS碰撞邻小区集信息，将该第三相关信息称为第二 CRS碰撞邻小区集信 息。
图 10是本发明实施例 8的干扰消除方法流程图。 其中， 以微小区 901通知邻小 区干扰源邻小区集信息， 且与微小区相邻的小区通知本小区 UE干扰源邻小区集信息 为例进行说明。
如图 10所示， 该方法包括：
步骤 1001， 用户设备 UE向所属小区的基站上报其是否具有 CRS干扰消除能力； 其中， 微小区的 UE903、 903 " 、 宏小区的 UE向各自所属微基站 901/902 " ， 宏 基站 902 ' 上报其是否具有 CRS干扰消除能力。
步骤 1002， 微小区 901获取干扰消除辅助信息；
在本实施例中，微小区 901根据本小区用户设备 903上报的测量结果确定对微小 区 901产生干扰的邻小区， 即干扰源邻小区；
其中， 该干扰源邻小区可包括一个或一个以上邻小区， 称为 "干扰源邻小区集"; 在确定该干扰源邻小区后， 即可获得干扰源邻小区的信息， 称为 "干扰源邻小区集信 息"；
在本实施例中， 微基站 901将 "干扰源邻小区集信息"作为干扰消除辅助信息， 该干扰源邻小区集信息包含的信息如上述实施例所述， 此处不再赘述。
步骤 1003， 微基站 901将该干扰消除辅助信息通知邻小区； 其中， 该干扰消除 辅助信息为 "干扰源邻小区集信息"；
在本实施例中， 微基站 901可通过 X2接口通知该干扰消除辅助信息； 其中， 邻小区可为宏小区或其他微小区；
此外，微基站 901还可将该干扰消除辅助信息配置给本小区具有干扰消除能力的 UE， 使得本小区具有干扰消除能力的 UE根据该干扰消除辅助信息进行干扰消除。
步骤 1004， 该邻小区的基站接收微小区 901通知的该干扰消除辅助信息； 在本实施例中， 如图 9所示， 例如宏基站 902 ' 和其他微基站 902 "接收该干扰 消除辅助信息。
步骤 1005， 该邻小区的基站将该干扰消除辅助信息通知本小区 UE;
在本实施例中， 该本小区 UE具有干扰消除能力， 可为宏小区 UE 903 ' 或其他微 小区 UE 903 " ；
其中， 该邻小区基站在收到该干扰消除辅助信息后， 可在对本小区 UE进行邻小 区测量配置时， 将该干扰消除辅助信息配置给本小区 UE， 然后发送给本小区 UE; 其 中， 可将该干扰消除辅助信息包含在 Cel lsToAddMod IE或其他 IE中； 此外， 该邻小区基站还可通过其他信令发送该干扰消除辅助信息。
步骤 1006， 该邻小区的用户设备 UE接收该邻小区通知的干扰消除辅助信息； 例如， 宏小区 UE 903 ' 接收宏基站 902 ' 通知的干扰消除辅助信息， 其他微小区 UE 903 "接收微基站 902 "通知的干扰消除辅助信息。
步骤 1007， 该邻小区的用户设备 UE在对该微小区进行 RRM测量时， 根据该干扰 消除辅助信息进行干扰消除；
在本实施例中， 该邻小区的用户设备 UE首先根据该干扰消除辅助信息选择与该 微小区的 CRS碰撞的小区； 然后消除选择的该小区对该微小区的干扰。
步骤 1008， 该邻小区的用户设备 UE上报测量结果；
其中， 此步骤为可选步骤。
由上述实施例可知， 微基站 901可获取干扰源邻小区集信息， 并将该信息作为干 扰消除辅助信息通知与微基站 901所在微小区相邻的小区（宏小区、或者还包括其他 微小区）； 与该微小区相邻的小区将该干扰消除辅助信息通知本小区具有干扰消除能 力的用户设备， 在该用户设备对该微小区进行 RRM测量时， 可根据该相关信息进行干 扰消除， 解决了目前存在的问题， 可避免切换过晚的问题。
本发明实施例 9还提供一种干扰消除方法，其与实施例 8的相同之处此处省略说 明， 仅对本实施例与实施例 8的不同指出进行详细说明。
在实施例 9中， 与实施例 8的不同之处在于， 在步骤 1002中， 该微小区获取该 干扰消除辅助信息时， 具体包括：
该微小区根据本小区用户设备上报的测量结果确定对微小区产生干扰的邻小区， 即干扰源邻小区； 在该干扰源邻小区中选择与该微小区的 CRS碰撞的邻小区， 即 CRS 碰撞邻小区集， 将其信息称为 "第一 CRS碰撞邻小区集信息"， 该第一 CRS碰撞邻小 区集信息作为该干扰消除辅助信息。
此外， 在步骤 1005和 1006中通知的是 "第一 CRS碰撞邻小区集信息"。
在实施例 9中， 与实施例 8的不同之处还在于， 在步骤 1007中进行干扰消除时， 该 UE消除该第一 CRS碰撞邻小区集信息中的所有小区对该微小区的干扰。
由上述实施例可知，微小区将获取的第二 CRS碰撞邻小区集信息通知与该微小区 相邻的邻小区， 该与微小区相邻的邻小区接收到该第二 CRS碰撞邻小区集信息后， 可 将上述信息配置给本小区的具有干扰消除能力的用户设备，使得用户设备在对该微小 区进行 RRM测量时， 可根据该信息进行 CRS干扰消除， 可避免切换太晚的问题。 本发明实施例 10还提供一种干扰消除方法， 其与实施例 8的相同之处此处省略 说明， 仅对本实施例与实施例 8的不同指出进行详细说明。
在实施例 10中， 在步骤 1004之后， 该邻小区的基站在接收微小区通知的干扰消 除辅助信息后，在该"干扰源邻小区集信息"中选择与该微小区的 CRS碰撞的邻小区， 将该 CRS碰撞的邻小区称为 "第二 CRS碰撞邻小区集"， 对应的信息为 "第二 CRS碰 撞邻小区集信息"。
这样， 在步骤 1005和 1006中， 该邻小区基站将该第二 CRS碰撞邻小区集信息通 知本小区具有干扰消除能力的用户设备 UE。
在实施例 10中，与实施例 8的不同之处还在于，在步骤 1007中进行干扰消除时， 该 UE消除该第一 CRS碰撞邻小区集信息中的所有小区对该微小区的干扰。
由上述实施例可知，微小区将获取的干扰源邻小区集信息通知与该微小区相邻的 邻小区， 该与微小区相邻的邻小区接收到该干扰源邻小区集信息后， 可从中选择第二
CRS碰撞邻小区集， 将该第二 CRS碰撞邻小区集信息配置给本小区的具有干扰消除能 力的用户设备， 使得用户设备在对该微小区进行 RRM测量时， 可根据该信息进行 CRS 干扰消除， 可避免切换太晚的问题。
本发明实施例还提供一种计算机可读程序， 其中当在微基站中执行所述程序时， 所述程序使得计算机在所述微基站中执行如实施例 1、 实施例 8-10所述的公共参考 信号的干扰消除的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可 读程序使得计算机在微基站中执行如实施例 1、 实施例 8-10所述的公共参考信号的 干扰消除的方法。
本发明实施例还提供一种计算机可读程序， 其中当在基站中执行所述程序时， 所 述程序使得计算机在所述基站中执行如实施例 2、 实施例 8-10所述的公共参考信号 的干扰消除的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可 读程序使得计算机在基站中执行如实施例 2、 实施例 8-10所述的公共参考信号的干 扰消除的方法。
本发明实施例还提供一种计算机可读程序， 其中当在用户设备中执行所述程序 时， 所述程序使得计算机在所述用户设备中执行如实施例 3、 实施例 8-10 的公共参 考信号的干扰消除的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可 读程序使得计算机在用户设备中执行如实施例 3、 实施例 8-10的公共参考信号的干 扰消除的方法。
本发明以上的装置和方法可以由硬件实现， 也可以由硬件结合软件实现。 本发 明涉及这样的计算机可读程序， 当该程序被逻辑部件所执行时， 能够使该逻辑部件实 现上文所述的装置或构成部件， 或使该逻辑部件实现上文所述的各种方法或步骤。本 发明还涉及用于存储以上程序的存储介质， 如硬盘、 磁盘、 光盘、 DVD、 flash 存储 器等。
以上结合具体的实施方式对本发明进行了描述， 但本领域技术人员应该清楚， 这 些描述都是示例性的， 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围 内。

Claims

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1、 一种公共参考信号的干扰消除方法， 所述方法包括：
微小区将干扰消除辅助信息通知邻小区；
所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息。
2、 根据权利要求 1所述的方法， 其中， 所述第一相关信息和第二相关信息包括: 小区标识、 天线端口数量和多播 /广播单频网帧配置信息。
3、 根据权利要求 1或 2所述的方法， 其中， 在所述微小区将干扰消除辅助信息 通知邻小区之前， 所述方法还包括： 获取所述干扰消除辅助信息。
4、 根据权利要求 3所述的方法， 其中， 所述获取干扰消除辅助信息， 包括： 所述微小区根据本小区用户设备上报的测量结果确定对微小区产生干扰的邻小 区；
并且所述微小区将干扰消除辅助信息通知邻小区， 包括： 将确定的所述邻小区的 第一相关信息通知邻小区。
5、 根据权利要求 3所述的方法其中， 所述获取所述干扰消除辅助信息， 包括： 所述微小区根据本小区用户设备上报的测量结果确定对微小区产生干扰的邻小 区；
在确定的对微小区产生干扰的邻小区中选择与所述微小区的公共参考信号碰撞 的邻小区；
并且所述微小区将干扰消除辅助信息通知邻小区， 包括： 将与所述微小区的公共 参考信号碰撞的邻小区的第二相关信息通知邻小区。
6、 一种公共参考信号的干扰消除方法， 所述方法包括：
与微小区相邻的邻小区接收微小区通知的干扰消除辅助信息；
所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息；
将所述干扰消除辅助信息通知本小区具有干扰消除能力的用户设备。
7、 根据权利要求 6所述的方法， 其中， 当所述干扰消除辅助信息包括第一相关 信息时， 在接收微小区通知的干扰消除辅助信息之后， 所述方法还包括：
根据所述第一相关信息选择与所述微小区的公共参考信号碰撞的邻小区； 并且将所述干扰消除辅助信息通知本小区的用户设备， 包括：
将选择的与所述微小区的公共参考信号碰撞的邻小区的第三相关信息通知本小 区具有干扰消除能力的用户设备。
8、 根据权利要求 6 所述的方法， 其中， 所述干扰消除辅助信息包含在 CellsToAddMod信元。
9、 一种公共参考信号的干扰消除方法， 所述方法包括：
与微小区相邻的邻小区的用户设备接收所述邻小区通知的干扰消除辅助信息；其 中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息或者第三相关信息；
所述用户设备在对所述微小区进行无线资源管理测量时，根据所述干扰消除辅助 信息进行公共参考信号的干扰消除。
10、 根据权利要求 9所述的方法， 其中， 在所述干扰消除辅助信息包括第一相关 信息时， 根据所述干扰消除辅助信息进行公共参考信号的干扰消除， 包括：
根据所述第一相关信息选择与所述微小区的公共参考信号碰撞的小区； 消除选择的所述小区对所述微小区的干扰；
在所述干扰消除辅助信息包括第二相关信息或者第三相关信息时，根据所述干扰 消除辅助信息进行公共参考信号的干扰消除， 包括：
消除所述第二相关信息和第三相关信息中的所有小区对所述微小区的干扰。
11、 一种微基站， 所述微基站包括：
第一通知单元， 所述第一通知单元用于将干扰消除辅助信息通知邻小区； 其中， 所述干扰消除辅助信息包括对微小区产生干扰的邻小区的第一相关信息、或者包括在 对微小区产生干扰的邻小区中，与微小区的公共参考信号碰撞的邻小区的第二相关信 息。
12、 根据权利要求 11所述的微基站， 其中， 所述微基站还包括： 信息获取单元， 所述信息获取单元用于获取所述干扰消除辅助信息。
13、 根据权利要求 11或 12所述的微基站， 其中， 所述信息获取单元用于根据所 属微基站的用户设备上报的测量结果确定对微小区产生干扰的邻小区；
并且所述第一通知单元进一步用于将确定的所述邻小区的第一相关信息通知邻 小区。
14、 根据权利要求 11或 12所述的微基站， 其中， 所述信息获取单元包括： 第一确定单元，所述第一确定单元用于根据所属微基站的用户设备上报的测量结 果确定对微小区产生干扰的邻小区；
第一选择单元，所述第一选择单元用于在第一确定单元确定的对微小区产生干扰 的邻小区中选择与微小区的公共参考信号碰撞的邻小区；
并且所述第一通知单元进一步用于将与微小区的公共参考信号碰撞的邻小区的 第二相关信息通知邻小区。
15、 一种基站， 所述基站为与微小区相邻的邻小区的基站， 所述基站包括： 第一接收单元， 所述第一接收单元用于接收微小区通知的干扰消除辅助信息； 其 中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信息、或 者包括在对所述微小区产生干扰的邻小区中，与所述微小区的公共参考信号碰撞的邻 小区的第二相关信息；
第二通知单元，所述第二通知单元用于将所述干扰消除辅助信息通知所属基站的 具有干扰消除能力的用户设备。
16、 根据权利要求 15所述的基站， 其中， 所述基站还包括：
第二选择单元，所述第二选择单元用于在所述干扰消除辅助信息包括第一相关信 息， 在接收微小区通知的干扰消除辅助信息后， 根据所述第一相关信息选择与所述微 小区的公共参考信号碰撞的邻小区；
所述第二通知单元进一步用于将选择的与所述微小区的公共参考信号碰撞的邻 小区的第三相关信息通知本小区具有干扰消除能力的用户设备。
17、 根据权利要求 15 所述的方法， 其中， 所述干扰消除辅助信息包含在
CellsToAddMod信元。
18、 一种用户设备， 具有干扰消除能力， 所述用户设备归属于与微小区相邻的邻 小区， 所述用户设备包括：
第二接收单元， 所述第二接收单元用于接收所属邻小区通知的干扰消除辅助信 息； 其中， 所述干扰消除辅助信息包括对所述微小区产生干扰的邻小区的第一相关信 息、或者包括在对所述微小区产生干扰的邻小区中， 与所述微小区的公共参考信号碰 撞的邻小区的第二相关信息或者第三相关信息；
第一处理单元， 所述第一处理单元用于在对所述微小区进行无线资源管理测量 时， 根据所述干扰消除辅助信息进行公共参考信号的干扰消除。
19、 根据权利要求 18所述的用户设备， 其中， 在所述干扰消除辅助信息包括第 一相关信息时， 所述第一处理单元包括：
第三选择单元，所述第三选择单元用于根据所述第一相关信息选择与所述微小区 的公共参考信号发生的小区；
第一消除单元，所述第一消除单元用于消除所述第三选择单元选择的所述小区对 所述微小区的干扰。
20、 根据权利要求 18所述的用户设备， 其中， 在所述干扰消除辅助信息包括第 二相关信息或者第三相关信息时，所述第一处理单元进一步用于消除所述第二相关信 息和第三相关信息中的所有小区对所述微小区的干扰。
21、 一种异构网系统， 所述系统包括：
微基站， 所述用于将干扰消除辅助信息通知邻小区； 其中， 所述干扰消除辅助信 息包括对微小区产生干扰的邻小区的第一相关信息、或者包括在对微小区产生干扰的 邻小区中， 与微小区的公共参考信号碰撞的邻小区的第二相关信息；
与所述微基站相邻的宏基站和 /或其他微基站， 用于接收所述微基站通知的干扰 消除辅助信息， 并将所述干扰消除辅助信息通知本小区具有干扰消除能力的用户设 备；
用户设备， 用于接收与所述微基站相邻的宏基站和 /或其他微基站通知的干扰消 除辅助信息， 并在对所述微小区进行无线资源管理测量时， 根据所述干扰消除辅助信 息进行公共参考信号的干扰消除。
22、 根据权利要求 21所述的系统， 其中， 所述微基站为权利要求 11至 14的任 一项权利要求所述的微基站；
与所述微基站相邻的宏基站和 /或其他微基站为权利要求 15至 17的任一项权利 要求所述的基站；
所述用户设备为权利要求 18至 20的任一项权利要求所述的用户设备。
23、 一种计算机可读程序， 其中当在微基站中执行所述程序时， 所述程序使得计 算机在所述微基站中执行如权利要求 1至 5的任一项权利要求所述的公共参考信号的 干扰消除的方法。
24、一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算 机在微基站中执行如权利要求 1至 5的任一项权利要求所述的公共参考信号的干扰消 除的方法。
25、 一种计算机可读程序， 其中当在基站中执行所述程序时， 所述程序使得计算 机在所述基站中执行如权利要求 6至 8的任一项权利要求所述的公共参考信号的干扰 消除的方法。
26、一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算 机在基站中执行如权利要求 6至 8的任一项权利要求所述的公共参考信号的干扰消除 的方法。
27、 一种计算机可读程序， 其中当在用户设备中执行所述程序时， 所述程序使得 计算机在所述用户设备中执行如权利要求 9或 10所述的公共参考信号的干扰消除的 方法。
28、一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算 机在用户设备中执行如权利要求 9或 10所述的公共参考信号的干扰消除的方法。
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