CN104254978A - Interference suppression method, device and system in hierarchical networking of heterogeneous network - Google Patents

Interference suppression method, device and system in hierarchical networking of heterogeneous network Download PDF

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Publication number
CN104254978A
CN104254978A CN201280072729.9A CN201280072729A CN104254978A CN 104254978 A CN104254978 A CN 104254978A CN 201280072729 A CN201280072729 A CN 201280072729A CN 104254978 A CN104254978 A CN 104254978A
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China
Prior art keywords
cell
information
user equipment
base station
relevant parameter
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李宏超
周华
吴建明
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Fujitsu Ltd
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Fujitsu Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • 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
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects
    • 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

Abstract

An interference suppression method, device and system in the hierarchical networking of a heterogeneous network. The method includes: a base station of a serving cell to which user equipment belongs acquiring relevant parameters of an adjacent cell, and/or the serving cell; and informing the user equipment of the relevant parameters, the relevant parameters being used for allowing the user equipment to utilize the relevant parameters to perform corresponding interference suppression. The relevant parameters include system information or include partial parameter information in the system information. The system information includes one or more of the following information corresponding to a cell identification: the number of CRS ports, a system frame number, PHICH configuration information, cyclic prefix type information, downlink bandwidth information, MBSFN configuration information, and relevant parameters in a system information block-1. The embodiments of the present invention solve the problem caused by unbalanced inter-cell handover, selection and offset value reselection in the prior art, and can simplify the signalling transport complexity of the system.

Description

Interference suppression method, device and system in hierarchical networking of heterogeneous network
Disturbance restraining method, device and system technical field in heterogeneous network layering networking
The present invention relates to the communications field, disturbance restraining method, device and system in more particularly to a kind of heterogeneous network layering networking.Background technology
In order to improve enhanced Long Term Evolution（LTE-A:LTE-Advanced) user covers under system, improves the handling capacity of system and the message transmission rate of user, introduces heterogeneous network（HetNet, Heterogeneous Network) node, for example, these heterogeneous network nodes include Home eNodeB（HeNB, Home eNodeB), focus coverage cell (Pico-cell) etc., using relatively low transmission power, is covered, networking mode is relatively flexible to specific region or user.
Fig. 1 is Macro-Pico schematic diagram of a scenario.As shown in figure 1, the user in cell coverage area extension (C E, Cell Range Expansion) region of Pico cells is by by the larger interference of Macro cells.In macrocell and Microcell（Macro-Pico cell) with the scene of deployment frequently, in order to improve resource utilization ratio, make Microcell（Pico cell) the more users of covering, based on Reference Signal Received Power（RSRP, Reference Signal Received Power) cell selecting method in, presently suggested introduce is partial to " the RSRP+ bias " of Microcell, i.e., user equipment (UE) receives Microcell（Pico cell) Reference Signal Received Power (RSRP) be less than macrocell（Macro cell) deviation（When within bias), user equipment (UE) ownership Microcell.Coordinate certain elCIC mechanism again, can the overall handling capacity of lifting system.
In current Standardization, for the handling capacity of lifting system, time domain elCIC mechanism has been written into standard.Specifically, by some sub-frame configurations into almost empty frame（ABS, Almost Blank Subframe), in ABS, in order to reduce the interference to other cells, the control channel of common reference symbol and necessary only a few is only transmitted, other equal skies of resource fall, or are transmitted using the power of reduction.
But found during inventor realizes the present invention, CRE causes the deviant imbalance of cell switching/selection/reselection, and the imbalance of this deviant can introduce problems with, for example, causing come the cell special reference for cell of improving oneself（CRS, Cell-Specification Reference Signal) to disturb, this interference can influence the RRM of user（RRM, Radio Resource Management) measurement, channel condition information（CSI, channel state information) measurement, data demodulation, synchronizing channel demodulation, the demodulation of broadcast channel demodulation control channel etc.； And the imbalance of this deviant can cause the broadcast channel of strong cell（PBCH), primary/secondary synchronizing channel
(PSS/SSS), paging (Paging) and (SIB-1 of system information block -1, System Information Block- 1) etc. transmission strong jamming is produced to adjacent area Pico cell respective channel, so that hydraulic performance decline of the user to reception and the demodulation of Pico cell these channels, influence the stability of user's cell searching and identification, it is embodied in user's start to be initially accessed, mobile management, and situations such as cell broadcast information.
It should be noted that the introduction to technical background is intended merely to the convenient explanation clear, complete to technical scheme progress above, and facilitates the understanding of those skilled in the art and illustrate.Can not be merely because these schemes be set forth in the background section of the present invention and think that above-mentioned technical proposal is known to those skilled in the art.The content of the invention
The purpose of the embodiment of the present invention is to provide disturbance restraining method, the device and system that a kind of heterogeneous network is layered in networking, to suppressing come the interference for cell of improving oneself, the problem of can solving to be caused by unbalanced handover between cells, selection, gravity treatment bias, and the signalling complexity of system can be simplified.
One side according to embodiments of the present invention provides the disturbance restraining method that a kind of heterogeneous network is layered in networking, and this method includes：
The base station of the affiliated serving cell of user equipment obtains the relevant parameter of neighbor cell, and/or serving cell；The relevant parameter is notified into the user equipment, the relevant parameter is used to carry out corresponding AF panel using the relevant parameter for the user equipment；
Wherein, the relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID:CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
A kind of disturbance restraining method being layered another aspect provides heterogeneous network in networking according to embodiments of the present invention, this method includes：
Neighbor cell and/or the relevant parameter of the serving cell that the base station that user equipment receives affiliated serving cell is notified；The relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：
CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1. It is according to embodiments of the present invention another aspect provides a kind of base station, the base station includes：First acquisition unit, the first acquisition unit is arranged to obtain the relevant parameter of neighbor cell, and/or serving cell；
First notification unit, first notification unit is arranged to the relevant parameter notifying the user equipment, the user equipment is carried out corresponding AF panel according to the relevant parameter；
Wherein, the relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID:CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
It is according to embodiments of the present invention another aspect provides a kind of user equipment, the user equipment includes：Second receiving unit, second receiving unit is arranged to receive neighbor cell and/or the relevant parameter of the serving cell of the base station notice of affiliated serving cell；
The relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
It is according to embodiments of the present invention another aspect provides a kind of network system, the network system includes：Macro base station, the macro base station is above-mentioned base station；
One or more micro-base stations, the micro-base station is above-mentioned base station；
One or more user equipmenies, the user equipment is above-mentioned user equipment.
It is according to embodiments of the present invention another aspect provides a kind of computer-readable program, wherein when performing described program in a base station, described program causes computer to perform the disturbance restraining method in above-mentioned heterogeneous network layering networking in the base station.
It is according to embodiments of the present invention another aspect provides a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method in above-mentioned heterogeneous network layering networking in a base station.
It is according to embodiments of the present invention that another aspect provides a kind of computer-readable program, wherein when performing described program in a user device, described program causes computer to perform the disturbance restraining method in above-mentioned heterogeneous network layering networking in the user equipment. It is according to embodiments of the present invention another aspect provides a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method in above-mentioned heterogeneous network layering networking in a user device.
The beneficial effect of the embodiment of the present invention is：By base station to notification of user equipment neighbor cell and/or serving cell the relevant parameter for being used to carry out AF panel, so that user equipment obtains the relevant parameter of the neighbor cell, so the user equipment carries out corresponding AF panel using the relevant parameter, the problem of being caused at present by unbalanced handover between cells, selection, gravity treatment bias is solved, and the signalling complexity of system can be simplified.
With reference to explanation hereinafter and accompanying drawing, only certain exemplary embodiments of this invention is disclose in detail, the principle for specifying the present invention can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.In the range of the spirit and terms of appended claims, embodiments of the present invention include many changes, modifications and equivalent.
Described for a kind of embodiment and/or the feature that shows can be used in same or similar mode in one or more other embodiments, it is combined with feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term " include/include " refers to the presence of feature, one integral piece, step or component when being used herein, but it is not precluded from the presence or additional of one or more further features, one integral piece, step or component.Brief description of the drawings
From the detailed description below in conjunction with accompanying drawing, above-mentioned and other purposes, the feature and advantage of the embodiment of the present invention will become apparent, in the accompanying drawings：
Fig. 1 is Macro-Pico schematic diagram of a scenario；
Fig. 2A is the disturbance restraining method flow chart in the heterogeneous network layering networking of the embodiment of the present invention 1；Fig. 2 B to 2D are the signaling structure schematic diagrames of the embodiment of the present invention 1；
Fig. 3 is the disturbance restraining method flow chart in the heterogeneous network layering networking of the embodiment of the present invention 2；
Fig. 4 A are the schematic diagram of a scenario of the embodiment of the present invention 3；
Fig. 4 B are the disturbance restraining method flow charts of the embodiment of the present invention 3；
Fig. 5 is the disturbance restraining method flow chart of the embodiment of the present invention 4；
Fig. 6 is the disturbance restraining method flow chart of the embodiment of the present invention 5；
Fig. 7 A are the schematic diagram of a scenario of the embodiment of the present invention 6；
Fig. 7 B are the disturbance restraining method flow charts of the embodiment of the present invention 6； Fig. 8 is the disturbance restraining method flow chart of the embodiment of the present invention 7；
Fig. 9 is the disturbance restraining method flow chart of the embodiment of the present invention 7；
Figure 10 is the interference method flow chart of the embodiment of the present invention 9；
Figure 11 A are the schematic diagram of a scenario of the embodiment of the present invention 10；
Figure 11 B are the disturbance restraining method flow charts of the embodiment of the present invention 10；
Figure 12 is the disturbance restraining method flow chart of the embodiment of the present invention 11；
Figure 13 is that the base station of the embodiment of the present invention 12 constitutes schematic diagram；
Figure 14 is that the base station of the embodiment of the present invention 13 constitutes schematic diagram；
Figure 15 is that the user equipment of the embodiment of the present invention 15 constitutes schematic diagram.Embodiment
The various embodiments to the present invention are illustrated below in conjunction with the accompanying drawings.These embodiments are exemplary, are not limitations of the present invention.In order that those skilled in the art can easily understand that the principle and embodiment of the present invention, embodiments of the present invention are illustrated by taking the AF panel in the layering networking of LTE-A heterogeneous networks as an example, it is to be understood that, the present invention is not limited to said system, is applicable for the other systems for being related to AF panel.
In embodiments of the present invention, for heterogeneous network（), including macro cell base station, the base station of one or more Microcells HetNet.Wherein, each base station can obtain the relevant parameter of its neighbor cell, and the relevant parameter of the neighbor cell of acquisition and/or this cell is notified to the user equipment of affiliated subdistrict, so that the user equipment of the affiliated cell can receive the relevant parameter, so as to when the user equipment is moved to the neighbor cell, the user equipment can carry out corresponding AF panel using the relevant parameter of the neighbor cell obtained, or the AF panel of this cell is carried out when the user equipment is in this cell according to the relevant parameter of this cell.Wherein, the relevant parameter can be for system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, data area include CRS subframe（Multicast broadcast multimedia service SFN（MBSFN, Multicast Broadcast Single Frequency Network) subframe configuration information）, and the relevant parameter in system information block _ 1 (SIB-1).
The disturbance restraining method of the embodiment of the present invention is illustrated below in conjunction with accompanying drawing.
Fig. 2 is the disturbance restraining method in the heterogeneous network layering networking of the embodiment of the present invention 1.As shown in Fig. 2 this method includes： Step 201, the base station of the affiliated serving cell of user equipment obtains the relevant parameter of neighbor cell, and/or serving cell；
In the present embodiment, the base station can be macro base station, and so, the macro base station can obtain the system information of one or more adjacent Microcells；In addition, the base station is alternatively micro-base station；
In the present embodiment, the base station from the neighbor cell obtained in advance, and/or can select the relevant parameter in the system information of the serving cell；Wherein, the relevant parameter can be whole system informations or be system information subset；Wherein, the system information may include the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number（SFN, System Frame Number), hybrid automatic repeat request indication channel configuration (PHICH configuration) information, cyclic prefix type（Cyclic Prefix type) information, downlink bandwidth（DL bandwidth) information, data area includes CRS subframe（The configuration information of MBSF subframes）, and the relevant parameter in system information block -1 (SIB-1)；But the system information is not limited to above- mentioned information, other information can be included as needed；
The cyclic prefix type information may include circulating prefix-length information, be the cyclic prefix of the length of routine or the length for lengthening.
Step 202, the relevant parameter is notified into the user equipment, the user equipment is carried out corresponding AF panel according to the relevant parameter；
In the present embodiment, the user equipment can be notified by way of broadcast, or issues by way of user's dedicated signaling some or certain user's equipment；
In the present embodiment, the interference is the cell coverage area extension by Microcell（CRE the problem of unbalanced handover between cells, selection, gravity treatment bias cause caused by), the interference may include：Come the cell special reference for cell of improving oneself（CRS interference and the interference of the synchronizing channel come cell of improving oneself, broadcast channel and/or broadcast signaling), wherein synchronizing channel represent master sync signal/auxiliary synchronous signals（（PSS, Primary Synchronization Signal) I (SSS, Secondary Synchronization Signal)), broadcast channel includes Physical Broadcast Channel（PBCH, Physical Broadcast Channel), broadcast signaling illustrates system information block-x (SIB-x, System Information Block-x) and paging（Paging transmission).
So, the user equipment can carry out corresponding AF panel according to the relevant parameter of acquisition, i.e. to carrying out interference mitigation come the CRS for cell of improving oneself interference, so that the demodulation enhancing of data/control channel, and/or enhancing is demodulated to the interference of broadcast channel, broadcast signaling and/or synchronizing channel come cell of improving oneself, to mitigate the interference.
In the present embodiment, the relevant parameter can be represented with the data structure mode of list, such as Fig. 2 B to 2D institutes No.
As shown in Figure 2 B, cell ID（Cell ID) relevant parameter comprising cell ID and each cell ID of correspondence in list, for example, cell ID is from #0 ~ #N, respective cell ID#0 relevant parameter includes：The information such as CRS port number, MBSFN configuration informations, CRS bandwidth, the information and the above-mentioned type of other cell IDs of correspondence, it can be the system information obtained, or a part for system information, and the corresponding relevant parameter of each cell ID can be identical, or it is different, or part is identical, and the content of parameter can be determined according to network actual conditions.In addition, above-mentioned cell ID may include the mark of current home cell, the mark of neighbor cell may also comprise.
, can also be using the list shown in Fig. 2 C and 2D in addition to using the list shown in Fig. 2 B.
From above-described embodiment, the base station of network side can be to notification of user equipment neighbor cell and/or the relevant parameter for being used to carry out AF panel of serving cell, so that user equipment obtains the relevant parameter of the neighbor cell, and carry out corresponding AF panel using the relevant parameter, for example, to carrying out interference mitigation come the CRS for cell of improving oneself interference, so that the demodulation enhancing of data/control channel, and/or to come the broadcast channel for cell of improving oneself, the interference of broadcast signaling and/or synchronizing channel is demodulated enhancing, to mitigate the interference, cell identification and cell detection can be carried out according to the relevant parameter, other control signalings of the cell are demodulated according to the relevant parameter of the cell of acquisition（Such as PDCCH, SIB-1, Paging etc.）And data service, so as to solve the problem of being caused at present by unbalanced handover between cells, selection, gravity treatment bias, interference is suppressed, and the signalling complexity of system can be simplified.
In the present embodiment, in step 201, when the relevant parameter is system information, step 201 can obtain the system information of the neighbor cell in the following manner；But following manner is not limited to, can also be obtained using other modes.
It is strong cell for current home cell, obtains the system information of neighbor cell in the following way：Macro base station collects adjacent Microcell（Pico cell) system information, to obtain the system information of the adjacent Microcell；
For example, the Operations, Administration and Maintenance of network side（OAM, Operation Administration and Maintenance) functional entity actively issues the system information of the Microcell, and the macro base station can receive the system information for the Microcell that the OAM is issued, to obtain the system information of the Microcell；
For example, the macro base station can send the request for the system information for issuing Microcell to the OAM of network side, and receive the system information for the Microcell that the OAM is issued according to the request；
In addition, the macro base station can also obtain the system information of the adjacent Microcell by way of being interacted with the base station of adjacent Microcell, i.e. the macro base station sends the request for the system information for obtaining the Microcell to the base station of adjacent Microcell, the base station of the Microcell is received after the request, and the system information of the Microcell is sent into the macro base station； When current home cell is Microcell, the system information of neighbor cell is obtained in the following way：The mode that micro-base station obtains the system information of neighbor cell is similar with the mode for the system information that the macro base station obtains the neighbor cell, for example, the Operations, Administration and Maintenance of network side（OAM, Operation Administration and Maintenance) functional entity actively issues the system information of the micro-base station neighbor cell, and the micro-base station can receive the system information for the neighbor cell that the OAM is issued；For example, the micro-base station can send the request for issuing the system information for obtaining neighbor cell to the OAM of network side, and receive the system information for the neighbor cell that the OAM is issued according to the request；In addition, the micro-base station can also obtain the system information of the neighbor cell by way of the base station with neighbor cell is interacted, similar with the situation of macro base station, here is omitted.
In addition, for the system information of current home cell, can be obtained by way of receiving the information for the current home cell that OAM(Operation Administration Maintenance) entity is issued.
In the present embodiment, before step 201, this method also includes：Obtain between the serving cell and the neighbor cell, or obtain the mutual interference relationships between the serving cell, the neighbor cell and the user equipment.Also, above-mentioned steps 201 may particularly include：The base station selects the relevant parameter according to the mutual interference relationships of acquisition.
In the present embodiment, the mutual interference relationships refer to：Low power nodes cell in heterogeneous network（Refer generally to Microcell, or cell switching, selection, the relatively large Microcell of gravity treatment bias）In home subscriber can be by high power node（Refer generally to strong cell or cell switching, selection, the relatively small Microcell of gravity treatment bias）Interference, i.e., by strong cell CRS interference or disturbed by strong cell synchronization channels, broadcast channel and/or broadcast signaling.
Specifically, because come cell of improving oneself（Macrocell produces strongly disturbing Microcell）Interference, demodulation of the user belonged in small and weak area to the data channel of serving cell, control channel, broadcast channel, and/or synchronizing channel etc. is detected, channel status measurement RRM measurement also based on reference symbol causes the decline of performance, can not even work；Or because coming from the signal intensity of strong cell, demodulation of the home subscriber to the broadcast channel, broadcast signaling and/or synchronizing channel in small and weak area etc. in strong cell is detected, RRM measurement also based on reference symbol etc. causes the decline of performance, can not even work.
In the above-described embodiments, the strong cell refers to the relatively strong cell of signal, can be macrocell or is " produce strongly disturbing Microcell ".
For example, working as two Microcells A and B adjacent area each other, when the individual character deviant of two Microcells（Switching, cell selection, gravity treatment）Selection, cause Microcell A edge customer can by Microcell B it is strongly disturbing when, then Microcell B is " produce strongly disturbing Microcell ".
In the above-described embodiments, the small and weak area refers to the Microcell by strong area interference. For example, working as two Microcells A and B adjacent area each other, when the individual character deviant of two Microcells（Switching, cell selection, gravity treatment）Selection, cause user equipment when detection comes from Microcell A signal, by the strong jamming from Microcell B, we claim Microcell A to be a small and weak area.
In the present embodiment, the base station can obtain the mutual interference relationships by receiving the mutual interference relationships between serving cell and neighbor cell that network side 0AM issues；
In addition, can also obtain the mutual interference relationships between the serving cell, the neighbor cell and the user equipment by base station information interaction or according to the measurement result of the user equipment to report, so in the case of the mutual interference relationships that obtain it is more accurate.
Wherein, the measurement result of the reported by user equipment UE may include Reference Signal Received Power (RSRP, ReferenCE Signal Receiving Power) and Reference Signal Received Quality（RSRQ, Reference Signal Receiving Quality) etc. RRM（RRM, Radio Resource Management) measured value.
So, interference type is can determine that by the mutual interference relationships of acquisition, is the cell special reference by strong cell（CRS interference), and/or disturbed by the synchronizing channel of strong cell, broadcast channel, and/or broadcast signaling, so as to select corresponding relevant parameter according to the mutual interference relationships.
In one embodiment of the invention, the base station can indicate interference type by explicit mode.
In this case, obtained in the base station after the mutual interference relationships, this method also includes：The configured information for indicating interference type is added in the relevant parameter；And the base station notifies the relevant parameter for including the configured information.
In the present embodiment, the configured information can be the cell special reference for indicating the neighbor cell and/or serving cell by strong cell（CRS interference) still being disturbed or being disturbed simultaneously by above two by the synchronizing channel of strong cell, broadcast channel, and/or broadcast signaling.Specifically, the configured information can be to indicate that the neighbor cell and/or serving cell are strong jamming cell and/or the information in small and weak area that is disturbed.Wherein, " strong jamming cell " represents that interference type is the CRS interference come cell of improving oneself, correspondence " carries out CRS interference mitigations ", " the small and weak area being disturbed " represents the interference that interference type is the synchronizing channel come cell of improving oneself, broadcast channel, and/or broadcast signaling, correspondence " carries out cell identification and cell detection ", that is, is demodulated enhancing.If two kinds of interference are present simultaneously, interference mitigation and demodulation are carried out simultaneously to be strengthened.So, the user equipment is received after the relevant parameter, can determine which kind of AF panel carried out according to the configured information.
In the present embodiment, the configured information can be indicated with lbit parameter, for example, when the lbit is " 0 ", representing that interference type disturbs for the CRS of strong cell；When the lbit is " 1 ", interference of the interference type for the synchronizing channel of strong cell, broadcast channel, and/or broadcast signaling is represented.Vice versa. In the present embodiment, the quantity of the configured information is consistent with the quantity of cell ID, is respectively used to indicate the interference type of each cell, if Fig. 2 B are into the list shown in 2D, a configured information can be added for each cell ID, indicate the interference type of each cell ID respective cell；Or, the configured information is one, the unified interference type for indicating all cells, in this case, when the interference type of the corresponding cell of each cell ID in cell list is the same, interference type can be indicated by a configured information, so can saving signaling expense.
In another embodiment of the present invention, the base station can indicate interference type by implicit mode.
In this case, after the mutual interference relationships are obtained, this method also includes：According to the mutual interference relationships, the predetermined information for being used to indicate interference type is included in the relevant parameter of selection so that the user equipment carries out corresponding AF panel according to the predetermined information.
For example, if it is determined that interference type for strong cell CRS disturb, then according to predetermined rule, by parameter
MBSFN configuration informations are included in the relevant parameter, indicate that interference type disturbs for CRS using the MBSFN configuration informations, correspondingly, user equipment can determine to belong to CRS interference according to the MBSFN configuration informations, so as to carry out corresponding CRS AF panels, i.e. interference mitigation, so that the demodulation enhancing of control channel/data channel, above-mentioned parameter is certainly not limited to, also interference type can be indicated using other specification.
For example, if it is determined that interference type be strong cell synchronizing channel, broadcast channel, and/or the interference of broadcast signaling, then according to predetermined rule, parameter CP types are included in the relevant parameter, interference type is indicated using the CP types, correspondingly, the user equipment can determine interference type according to the CP type informations, so as to carry out corresponding AF panel, that is demodulation enhancing, strengthen the cell identification and cell detection to small and weak area, it is certainly not limited to indicate using above-mentioned parameter, other specification can also be used, such as raiCH configuration informations indicate interference type.
In embodiments of the present invention, base station also can without mutual interference relationships judgement, also do not indicate interference type, but voluntarily judged by user side.
In the present embodiment, when the base station is macro base station, this method also includes：The user equipment is switched to target neighbor cell by the measurement result decision reported according to the neighbor cell, also the identification information of the target neighbor cell can be notified into the user equipment (UE);
Wherein, the measurement result may include the Reference Signal Received Power that neighbor cell is reported（RSRP, Reference
Signal Receiving Power) and Reference Signal Received Quality（RSRQ, Reference Signal Receiving Quality) etc. RRM（RRM, Radio Resource Management) measured value.
So, when the UE obtains the identification information of the target neighbor cell, other control signalings and corresponding business datum of the target neighbor cell can be demodulated according to the system information of cell corresponding to the identification information, or carry out CRS AF panels.
In the present embodiment, in the case of the system information change of one or more neighbor cells, the system information for the change that the base station that the base station can also receive the neighbor cell is reported；The system information of change is notified into the user equipment, so that user equipment (UE) obtains the system information of the Microcell of change in time, it is ensured that to other control signalings of the cell（Such as PDCCH, SIB-1, Paging etc.）With the correct demodulation of business datum；And when the user equipment is disturbed by the CRS of strong cell, it is ensured that the user equipment carries out AF panel.
Fig. 3 is the disturbance restraining method flow chart in the heterogeneous network layering networking of the embodiment of the present invention 2.As shown in figure 3, this method includes：
Step 301, user equipment receives neighbor cell and/or the relevant parameter of the serving cell of the base station notice of affiliated serving cell；
In the present embodiment, the relevant parameter is similar with embodiment 1, and here is omitted.
In the present embodiment, in step 301, when the current affiliated serving cell of the user equipment (UE) is macrocell, the UE equipment can receive the neighbor cell of macro base station notice and/or the relevant parameter of the macrocell；When the user equipment (UE) current home cell is Microcell, the user equipment (UE) can receive the neighbor cell of micro-base station notice and/or the relevant parameter of the Microcell.
In the present embodiment, the data structure of the relevant parameter can use any one of Fig. 2 B to 2D.
In the present embodiment, this method may also include：The user equipment (UE) is stored the relevant parameter received.Wherein can by the identification information of neighbor cell identification information and/or serving cell, it is corresponding with the relevant parameter of the cell storage.In addition, when the system information change of neighbor cell, the relevant parameter that the UE is received also includes the system information that the neighbor cell changes.
In the present embodiment, when the base station of affiliated serving cell is macro base station in this prior, before step 301, this method also includes：The user equipment is synchronized to the current affiliated serving cell, sets up and is connected with the base station of the current affiliated serving cell（See step 300).The step 300 is optional step.
For example, in the present embodiment, when the user equipment (UE) is moved to some adjacent Microcell（Such as some adjacent Microcell is represented using Cel l-B）When, and the user equipment (UE) is not previously received the relevant parameter of the Cel l-B.In this case, the user equipment (UE) is synchronized to the strong cell of signal first（Such as macrocell or the strongly disturbing Microcell of generation）, the base station of the cell strong with the signal, which is set up, to be connected, and the relevant parameter of the Cel l-B is obtained from the base station of the cell.
In this case, before step 301 perform step 300, the i.e. user equipment be synchronized to signal by force Cell, the base station of the cell strong with the signal, which is set up, to be connected；Receive the relevant parameter of the base station including the Cel l-B of the base station notice of the strong cell of the signal.So, after the user equipment (UE) is switched to the Cel l-B, the user equipment (UE) can carry out corresponding AF panel according to the relevant parameter of the Cel l-B is obtained.
In the present embodiment, after step 301, this method also includes：Corresponding AF panel is carried out using the relevant parameter received（See step 302).So, because the user equipment (UE) is previously received the system information of the neighbor cell, therefore, problems of the prior art are solved.The step 302 is optional step, and the step 302 is just performed in the case where there occurs above-mentioned interference.
In the present embodiment, when base station side display indicates interference type, the relevant parameter also includes the configured information for being used to indicate interference type；And before step 302, this method also includes：The user equipment determines interference type according to the configured information.
In the present embodiment, when base station side implicit instruction interference type, the predetermined information for being used to indicate interference type is included in the relevant parameter；And before step 302, this method also includes：The user equipment determines interference type according to the predetermined information for indicating interference type.
In the present embodiment, when base station side does not indicate interference type, before step 302, this method also includes：Relevant parameter and the measurement to the serving cell and/or the CRS of neighbor cell or other signals that the user equipment can be notified according to base station；Or interference type is decided in its sole discretion according to the measurement to the serving cell and/or the CRS of neighbor cell or other signals.
In the present embodiment, this method also includes：The user equipment reports the measurement result of the serving cell and neighbor cell to the base station so that the base station obtains the mutual interference relationships between the serving cell, neighbor cell and user equipment according to the measurement result reported.
The disturbance restraining method of the embodiment of the present invention is described in detail with reference to specific scene.In this example, it is assumed that in the heterogeneous network the strong cell of signal be strong cell, and by system information of the relevant parameter, macrocell broadcast the neighbor cell（Microcell）System information exemplified by illustrate.
Fig. 4 A are the schematic diagram of a scenario of the embodiment of the present invention 3, and Fig. 4 B are the disturbance restraining method flow charts of the embodiment of the present invention 3.Macrocell is belonged to the user equipment (UE) of connection status（Macro cel l) scene, and be moved to exemplified by the CRE regions of Microcell and illustrate.
As shown in Figure 4 B, this method includes：
Step 401, macro base station obtains the system information of adjacent Microcell；
In the present embodiment, the system information of the Microcell is as described in embodiment 1 to 2, and here is omitted；This Sunset is foretold, and the macro base station collects the method for the system information of Microcell as described in embodiment 1 to 2, and here is omitted.Step 402, the macro base station is by the system information notifying user equipment of the Microcell of acquisition；
In the present embodiment, the system information can be included in the SIB4 of macrocell and be broadcasted by the macro base station, can so simplify the complexity of the signalling of system；Further, it is also possible to which other modes send the system information of the Microcell, such as paging mode is determined by concrete condition；
In addition, can also notify some user or certain user by the way of user's dedicated signaling；
In the present embodiment, the relevant parameter can use Fig. 2 B to 2D data structure.
Step 403, the user equipment (UE) for belonging to the macrocell receives the system information of macro base station notice, and obtains the system information of the Microcell；
In the present embodiment, the UE receives the SIB4 of macro base station broadcast, therefrom reads the system information of the Microcell.Step 404, the system information of the Microcell is stored；
In the present embodiment, can be by the storage corresponding with the system information of the Microcell of the cell identity information of the Microcell；So, when the user equipment (UE) is switched to the CRE of the Microcell from the macrocell, because the user equipment has been obtained for the relevant parameter of the Microcell of macro base station notice, therefore, the user equipment (UE) can find the system information of the corresponding Microcell according to the cell identity information of the Microcell, and using the Microcell system information to from macrocell CRS carry out interference mitigation, control signaling and corresponding business datum i.e. to the Microcell are demodulated, or suppress the synchronizing channel of macrocell, the interference of synchronous signaling and/or broadcast message, i.e. to cell detection and cell identification.
Step 405, when the UE is moved to the CRE regions of the mutually cell, the UE is switched to the Microcell by the measurement result that the macro base station is reported according to the user equipment (UE), decision, and notifies the corresponding cell identity informations of the UE；In the present embodiment, the measurement result of the reported by user equipment UE may include the RRM measured values such as RSRP and RSRQ, and similarly to the prior art, here is omitted for the mode of the Target cell of decision switching.
Step 406, the user equipment (UE) receives the identification information of the Microcell, and the system information of the Microcell is searched from the system information of acquisition.
Step 407, the user equipment (UE) determines the interference type of the Microcell；
In the present embodiment, the user equipment can voluntarily determine the method for the interference type of the Microcell as described in embodiment 2, here is omitted, determine the interference type in the present embodiment to be disturbed by macrocell synchronizing channel, broadcast channel and/or broadcast message, i.e., the Microcell is the small and weak area being disturbed.
Step 408, the user equipment utilizes the system information of the Microcell to being believed by macrocell synchronizing channel, broadcast The interference of road and/or broadcast message is suppressed, i.e., the Microcell carries out cell identification and cell detection；Wherein, using one or several in following parameter in the system information, such as CRS port numbers, System Frame Number（SFN, System Frame Number), hybrid automatic repeat request indication channel configuration（PHICH configuration) information, cyclic prefix type（Cyclic Prefix type) information, downlink bandwidth（DL bandwidth) relevant parameter in information, and system information block -1 (SIB-1).
In the above-described embodiments, if the user equipment voluntarily determines that the interference type is to be disturbed by the CRS of macrocell, using the parameter in the system information, such as CRS port numbers, MBSFN configuration informations carry out CRS AF panels.
From above-described embodiment, when the user equipment (UE) in connection status belongs to macrocell, the system information of adjacent Microcell can be obtained from macro base station, after the UE is switched to the CRE regions of the Microcell, it can determine that the interference type of the cell, and the interference that the Microcell is subject to is suppressed using the system information of the Microcell of acquisition according to interference type, cell detection and cell identification are carried out using the system information of the Microcell, the problem of quality of reception is not good in the prior art causes is solved to the cell identification in small and weak area and detection so as to strengthen, and the signalling degree of load of system can be simplified.
Above-described embodiment 3 is voluntarily to determine interference type with user equipment, and base station side does not indicate interference type.Illustrated below with reference to Fig. 4 A so that base station side indicates interference type in manner shown as an example.
Fig. 5 is the disturbance restraining method flow chart of the embodiment of the present invention 4.Macrocell is belonged to the user equipment (UE) of connection status（Macro cel l) scene, and be moved to exemplified by the CRE regions of Microcell and illustrate.
As shown in figure 5, this method includes：
Step 501, macro base station obtains the system information of adjacent Microcell；
In the present embodiment, the system information of the adjacent Microcell is as described in embodiment 1 to 2, and here is omitted；In addition, the macro base station collects the method for the system information of the adjacent Microcell as described in embodiment 1 to 2, here is omitted；
The quantity of the adjacent Microcell is 1 or more than 1.
Step 502, the macro base station is obtained between the macrocell and adjacent Microcell, or the mutual interference relationships between the macrocell, adjacent Microcell and the user equipment；
In the present embodiment, the methods of the mutual interference relationships is obtained as described in Example 1, here is omitted.Step 503, the macro base station selects the relevant parameter according to the mutual interference relationships of acquisition；
In the present embodiment, if the macro base station determines that the interference type of the Microcell is " the small and weak area being disturbed " according to the mutual interference relationships, the macro base station can be Microcell selection relevant parameter from system information, in such as following parameter It is one or several, such as CRS port numbers, System Frame Number（SFN, System Frame Number), hybrid automatic repeat request indication channel configuration（PHICH configuration) information, cyclic prefix type（Cycl ic Prefix type) information, downlink bandwidth（DL bandwidth) relevant parameter in information, and system information block _ 1 (SIB-1).
Step 504, the configured information for indicating interference type is added in the relevant parameter by the macro base station；In the present embodiment, if lbit signalings " 1 " expression " the small and weak area being disturbed ", " 1 " is added in relevant parameter.
Step 505, the macro base station is by the relevant parameter notifying user equipment of the Microcell of acquisition；
In the present embodiment, the relevant parameter can be included in the SIB4 of macrocell and be broadcasted by the macro base station, can so simplify the complexity of the signalling of system；Further, it is also possible to which other modes broadcast the system information of the Microcell, mode is such as individually broadcasted, is determined by concrete condition；
In addition, can also notify some user or certain user by the way of user's dedicated signaling.
Step 506, the user equipment (UE) for belonging to the macrocell receives the relevant parameter of macro base station notice, and obtains the relevant parameter of the adjacent Microcell.
Step 507, the relevant parameter of the adjacent Microcell is stored；
In the present embodiment, can be by the storage corresponding with the relevant parameter and configured information of the Microcell of the cell identity information of the adjacent Microcell；
So, when the user equipment (UE) is switched to some target Microcell, the user equipment (UE) can find the relevant parameter and configured information of the corresponding target Microcell according to the cell identity information of the target Microcell, and carry out corresponding AF panel to the target Microcell using the configured information and relevant parameter of the target Microcell.
Step 508, when the UE is moved to the CRE regions of adjacent Microcell, the macro base station is according to the measurement result of the reported by user equipment UE, and the UE is switched to the adjacent Microcell by decision, and notifies the corresponding Target Cell Identifier information of the UE；
In the present embodiment, the measurement result of the reported by user equipment UE may include the RRM measured values such as RSRP and RSRQ, and similarly to the prior art, here is omitted for the mode of the Target cell of decision switching.
Step 509, the user equipment (UE) receives the identification information of the Target cell, and the relevant parameter of the target Microcell is found from the system information of the Microcell of acquisition.
Step 510, the user equipment (UE) determines the interference type of the Microcell；
In the present embodiment, the user equipment can determine the Microcell according to the configured information in the relevant parameter " 1 " Interference type to be disturbed by the synchronizing channel of macrocell, broadcast channel and/or broadcast signaling, i.e., the Microcell is the small and weak area being disturbed.
Step 511, the user equipment is suppressed using the system information of the target Microcell to the interference that the target Microcell is subject to；
In the present embodiment, to being suppressed by the interference of macrocell synchronizing channel, broadcast channel and/or broadcast message, i.e., cell detection and cell identification are carried out to the Microcell using the system information, to strengthen cell identification and cell detection to small and weak area.
From above-described embodiment, when the user equipment (UE) in connection status belongs to macrocell, the relevant information of adjacent Microcell can be obtained from macro base station, the relevant information includes the information for indicating interference type；After the UE is switched to target Microcell, the interference type of the cell can be determined according to the configured information, and the interference that the Microcell is subject to is suppressed using the relevant parameter of the target Microcell of acquisition according to interference type, the problem of quality of reception in the prior art is not good to be caused is solved, and the signalling degree of load of system can be simplified.
Based on above-described embodiment 4, illustrated below with reference to Fig. 4 A by base station side so that implicit mode indicates interference type as an example.
Fig. 6 is the disturbance restraining method flow chart of the embodiment of the present invention 5.Strong cell is belonged to the user equipment (UE) of connection status（Macro cel l) scene, and be moved to exemplified by the CRE regions of Microcell and illustrate.
As shown in fig. 6, this method includes：
Step 601, macro base station obtains the system information of adjacent Microcell；
In the present embodiment, the system information of the adjacent Microcell is as described in embodiment 1 to 2, and here is omitted；In addition, the macro base station collects the method for the system information of the adjacent Microcell as described in embodiment 1 to 2, here is omitted；
The quantity of the adjacent Microcell is 1 or more than 1.
Step 602, the macro base station is obtained between the macrocell and adjacent Microcell, or the mutual interference relationships between the macrocell, adjacent Microcell and the user equipment；
In the present embodiment, the methods of the mutual interference relationships is obtained as described in Example 1, here is omitted.Step 603, the macro base station selects the relevant parameter according to the mutual interference relationships of acquisition；
In the present embodiment, if the macro base station determines that the interference type of the Microcell is " the small and weak area being disturbed " according to the mutual interference relationships, then the macro base station can be Microcell selection relevant parameter from system information, it is one or several in such as following parameter, such as CRS port numbers, System Frame Number (SFN, System Frame Number), mixing is automatic Repeat requests indicate channel configuration（PHICH configuration) information, cyclic prefix type（Cycl ic Prefix type) information, downlink bandwidth（DL bandwidth) relevant parameter in information, and system information block _ 1 (SIB-1)；
And in the present embodiment, in the relevant parameter of selection, the information of predetermined instruction interference type should be included, such as downlink bandwidth represents interference type for " the small and weak area being disturbed ".
Step 604, the macro base station is by the relevant parameter notifying user equipment of the Microcell of acquisition.
Step 605, the user equipment (UE) for belonging to the macrocell receives the relevant parameter of macro base station notice, and obtains the relevant parameter of the adjacent Microcell.
Step 606, the relevant parameter of the adjacent Microcell is stored；
In the present embodiment, can be by the storage corresponding with the relevant parameter and configured information of the Microcell of the cell identity information of the adjacent Microcell；
So, when the user equipment (UE) is switched to some target Microcell, the user equipment (UE) can find the relevant information and configured information of the corresponding target Microcell according to the cell identity information of the target Microcell, and utilize the configured information and relevant information of the target Microcell to the control signaling and corresponding AF panel of the target Microcell.
Step 607, when the UE is moved to the CRE regions of adjacent Microcell, the macro base station is according to the user equipment
The UE is switched to the adjacent Microcell by the measurement result that UE is reported, decision, and notifies the corresponding Target Cell Identifier information of the UE；
In the present embodiment, the measurement result of the reported by user equipment UE may include the RRM measured values such as RSRP and RSRQ, and similarly to the prior art, here is omitted for the mode of the Target cell of decision switching.
Step 608, the user equipment (UE) receives the identification information of the Target cell, and the relevant parameter of the target Microcell is found from the system information of the Microcell of acquisition.
Step 609, the user equipment (UE) determines the interference type of the Microcell；
In the present embodiment, the user equipment can be in the relevant parameter instruction interference type information, such as " downlink bandwidth " determines the interference type of the Microcell to be disturbed by the synchronizing channel of macrocell, broadcast channel and/or broadcast signaling, i.e., the Microcell is the small and weak area being disturbed.
Step 610, the user equipment is suppressed using the relevant parameter of the target Microcell to the interference that the target Microcell is subject to.
From above-described embodiment, when the user equipment (UE) in connection status belongs to macrocell, the relevant information of adjacent Microcell can be obtained from macro base station, the relevant information includes the information for indicating interference type；In UE switchings To after target Microcell, the interference type of the cell can be determined according to the information, and the interference that the target Microcell is subject to is suppressed using the relevant parameter of the target Microcell of acquisition according to interference type, carry out cell identification and cell detection, problems of the prior art are solved, and the signalling degree of load of system can be simplified.
Above-mentioned is the explanation carried out so that the interference type of the adjacent Microcell is " the small and weak area being disturbed " as an example, in this case, unified lbit can be used to indicate for the configured information, can also be indicated respectively using 1 lbit signaling for each Microcell.It is " strongly disturbing cell " for interference type, similar to the above, here is omitted.
In addition, above-mentioned is the explanation carried out so that strong cell is macrocell as an example, strong cell is alternatively the strongly disturbing Microcell of generation in addition.Similar with macrocell in this case, here is omitted.
In addition, it is more than one situation for the adjacent Microcell, the interference type of the adjacent Microcell of some of which can be " the small and weak area being disturbed ", and some are " strongly disturbing cell ", in this case, interference type need to be indicated using lbit signaling respectively for each Microcell.
In addition, the interference type can be also more than in base station side, and in user equipment side, the user equipment voluntarily judges its interference type, similar to Example 3, here is omitted.
Fig. 7 A are the schematic diagram of a scenario of the embodiment of the present invention 6, and Fig. 7 B are the disturbance restraining method flow charts of the embodiment of the present invention 6.Microcell is belonged to the user equipment (UE) of connection status（Macro cell) scene, and illustrated exemplified by the CRE regions of the Microcell and the interference by the CRS from macrocell, wherein the UE judges interference type.
As shown in Figure 7 B, this method includes：
Step 701, the base station of the user equipment affiliated subdistrict obtains the system information of adjacent cell；
In the present embodiment, the user equipment affiliated subdistrict is Microcell, and the system information of the neighbor cell may include the system information of macrocell, may also comprise the system information of other Microcells, the method of acquisition is as described in embodiment 1 to 2, and here is omitted；
As shown in Figure 7 A, the neighbor cell includes macrocell in the present embodiment.
Step 702, the micro-base station is by the system information notifying user equipment of the neighbor cell of acquisition；
In addition, can also notify some user or certain user by the way of user's dedicated signaling.
Step 703, the user equipment (UE) for belonging to the Microcell receives the system information that the base station of the Microcell is notified, and obtains the system information of the neighbor cell.
Step 704, the system information of the neighbor cell is stored；
In the present embodiment, can be by the storage corresponding with the system information of the neighbor cell of the cell identity information of the neighbor cell Deposit.
Step 705, the user equipment judges interference type；
In the present embodiment, when the user equipment is moved to the CRE regions of the Microcell, the UE is in data demodulation, control channel demodulation, RRM measurements, CSI measurement process, it may be disturbed by the CRS from macrocell, so, the user equipment can voluntarily judge its interference type, be not required to network side instruction, similar to the above embodiments, here is omitted.
Step 706, the user equipment carries out AF panel using the system information of the macrocell to the CRS interference from macrocell；
Wherein, AF panel is carried out to the CRS interference from macrocell to refer to carry out interference mitigation to the CRS interference from macrocell, the control information and corresponding business datum of the target Microcell are demodulated using the system information of acquisition, to strengthen the demodulation of data/control channel；
In the present embodiment, using one or several, such as the CRS port numbers and MBSFN configuration informations in following parameter in the system information.
From above-described embodiment, when the user equipment (UE) in connection status belongs to Microcell, the system information of adjacent macro cell and/or adjacent Microcell can be obtained from micro-base station, the user equipment determines that the interference type of the cell is that when being disturbed by the CRS of macrocell, can carry out CRS AF panels according to the system information of the macrocell.
Above-described embodiment 6 is the explanation carried out so that user equipment voluntarily determines interference type as an example.Illustrated below with reference to Fig. 7 A so that base station side indicates interference type in manner shown as an example.
Fig. 8 is the disturbance restraining method flow chart of the embodiment of the present invention 7.Microcell is belonged to the user equipment (UE) of connection status（Macro cel l), and illustrated exemplified by the CRE regions in Microcell and the scene by the CRS interference from macrocell, micro-base station display indicates interference type.
As shown in figure 8, this method includes：
Step 801, micro-base station obtains the system information of neighbor cell；
In the present embodiment, the system information of the neighbor cell may include the system information of macrocell and other Microcells, and the mode of acquisition is as described in embodiment 1 to 2, and here is omitted；
Scene as shown in Figure 7 A, the neighbor cell is macrocell.
Step 802, the micro-base station is obtained between the Microcell and neighbor cell, or the mutual interference relationships between the Microcell, neighbor cell and the user equipment；
In the present embodiment, the methods of the mutual interference relationships is obtained as described in Example 1, here is omitted. Step 803, the micro-base station selects the relevant parameter according to the mutual interference relationships of acquisition；In the present embodiment, for the macrocell adjacent with the Microcell, if the micro-base station determines that the Microcell is disturbed by the CRS of macrocell according to the mutual interference relationships, it is " strongly disturbing cell " to determine interference type, then the micro-base station can be macrocell selection relevant parameter from system information, such as one or several in following parameter, such as CRS port numbers and MBSFN configuration informations, but be not limited to above-mentioned parameter；
If also there are other Microcells adjacent with the Microcell, interference type equally can be also determined according to the mutual interference relationships, and corresponding relevant parameter is selected for these Microcells from system information.
Step 804, the configured information for indicating interference type is added in the relevant parameter by the micro-base station；In the present embodiment, if lbit signalings " 0 " expression " strongly disturbing cell ", " 0 " is added in relevant parameter corresponding with the cell ID of macrocell；In addition, the configured information is also added in relevant parameter corresponding with the cell ID of other Microcells.
Step 805, the micro-base station is by the relevant parameter notifying user equipment of the neighbor cell of acquisition.
Step 806, the user equipment (UE) for belonging to the Microcell receives the relevant parameter for the neighbor cell that the micro-base station is notified, and obtains the relevant parameter of the adjacent Microcell.
Step 807, the relevant parameter of the adjacent Microcell is stored；
In the present embodiment, can be by the storage corresponding with relevant parameter and configured information of the cell identity information of the adjacent Microcell.
Step 808, the user equipment (UE) determines the interference type；
In the present embodiment, when the UE is moved to the CRE regions of the Microcell, the UE makees RRM measurements, CSI measurements, when being demodulated to data channel, control channel, broadcast channel etc., it may be disturbed by from adjacent macro cell, the user equipment can determine that the interference type of the Microcell is to be disturbed by the CRS of macrocell according to the configured information " 0 " in the relevant parameter of the macrocell.
Step 809, the user equipment is suppressed using the relevant parameter of the macrocell to the CRS interference from the macrocell.
From above-described embodiment, when the user equipment (UE) in connection status belongs to Microcell, the relevant information of adjacent macro cell and adjacent Microcell can be obtained from micro-base station, the relevant information includes the information for indicating interference type；The UE can determine the interference type of the cell according to the configured information, and carry out CRS AF panels using the relevant parameter obtained according to interference type.
Based on above-described embodiment 7, entered below with reference to Fig. 7 A by base station side so that implicit mode indicates interference type as an example Row explanation.
Fig. 9 is the disturbance restraining method flow chart of the embodiment of the present invention 7.Microcell is belonged to the user equipment (UE) of connection status（Macro cel l) scene, and Microcell CRE regions by macrocell CRS interference exemplified by illustrate.
Step 901, micro-base station obtains the system information of neighbor cell（MIB);
In the present embodiment, the system information of the neighbor cell（MIB it) may include the system information of macrocell and other Microcells, the mode of acquisition is as described in embodiment 1 to 2, and here is omitted；
Under the scene shown in Fig. 7 A, the neighbor cell is macrocell.
Step 902, the micro-base station is obtained between the Microcell and neighbor cell, or the mutual interference relationships between the Microcell, neighbor cell and the user equipment；
In the present embodiment, the methods of the mutual interference relationships is obtained as described in Example 1, here is omitted.Step 903, the micro-base station selects the relevant parameter according to the mutual interference relationships of acquisition；
In the present embodiment, for the macrocell adjacent with the Microcell, if the micro-base station determines that the Microcell is disturbed by the CRS of macrocell according to the mutual interference relationships, it is " strongly disturbing cell " to determine interference type, then the micro-base station can be macrocell selection relevant parameter from system information, such as one or several in following parameter, such as CRS port numbers and MBSFN configuration informations, but be not limited to above-mentioned parameter；
For other Microcells adjacent with the Microcell, interference type equally can be also determined according to the mutual interference relationships, and corresponding relevant parameter is selected for these Microcells from system information；
In addition, the micro-base station is when selecting relevant parameter, the predetermined information for indicating the interference type is included in the relevant parameter, for example, if interference type is " strongly disturbing cell ", the predetermined information is MBSFN configuration informations, other specification is alternatively certainly, here is omitted；If interference type is " the small and weak area being disturbed ", the predetermined information can be CP information, or other specification, and here is omitted.
Step 904, the micro-base station is by the relevant parameter notifying user equipment of the neighbor cell of acquisition.
Step 905, the user equipment (UE) for belonging to the Microcell receives the relevant parameter for the neighbor cell that the micro-base station is notified, and obtains the relevant parameter of the adjacent Microcell.
Step 906, the relevant parameter of the adjacent Microcell is stored；
In the present embodiment, can be by the storage corresponding with relevant parameter and configured information of the cell identity information of the adjacent Microcell.
Step 907, the user equipment (UE) determines interference type； In the present embodiment, when the UE is moved to the CRE regions of the Microcell, the UE makees RRM measurements, CSI measurements, when being demodulated to data channel, control channel, broadcast channel etc., may be disturbed by from adjacent macro cell;The user equipment can determine that the interference type of the Microcell is to be disturbed by the CRS of macrocell according to the information " MBSFN configuration informations " in the relevant parameter of the macrocell.
Step 908, the user equipment carries out AF panel using the relevant parameter of the macrocell to the CRS interference from the macrocell.
From above-described embodiment, when the user equipment (UE) in connection status belongs to Microcell, the relevant information of adjacent macro cell and adjacent Microcell can be obtained from micro-base station, the relevant information includes the information of predetermined instruction interference type；The UE can determine the interference type of the cell according to the information, and carry out CRS AF panels using the relevant parameter obtained according to interference type.
Under above-mentioned scene, the explanation carried out so that the interference type of the Microcell is " strong jamming cell ", strong cell is macrocell as an example, in this case, unified lbit can be used to indicate for the configured information, can also be indicated respectively using 1 lbit signaling for each Microcell.Similar with macrocell when strong cell is produces strongly disturbing Microcell, here is omitted.
Figure 10 is the interference method flow chart of the embodiment of the present invention 9.With user equipment (UE) current home in Microcell
Exemplified by 1 (Pico cell -1), and in the CRE regions of the Microcell 1 (Pico cell -1), and the scene that changes of system information of the Microcell 1.As shown in Figure 10, this method includes：
Step 1001, when the system information of Microcell changes, the base station of the Microcell notifies the system information of renewal the macro base station of macrocell.So macro base station can upgrade in time the system information of the Microcell；
In the present embodiment, other micro-base stations can also be notified so that other micro-base stations also upgrade in time the system information of the Microcell；
In the present embodiment, if the system information of the Microcell changes at the to moment, before the to moment, the Microcell issues the system information of the change；
Because the system information of the Microcell changes, and due to master sync signal/auxiliary synchronous signals/broadcast channel（PSS/SSS/PBCH) all by macrocell（Macro cell) strong jamming, corresponding system information can not be demodulated correctly, so as to can not also demodulate remaining control signaling（Such as PDCCH, DL-SCH, SIB-1, Paging etc.）And business datum.Therefore, the UE is synchronous by again and most strong macrocell, sets up and is connected with macro base station, receives the system information of the system information comprising adjacent Microcell of macro base station broadcast, such as SIB4, and read the system information of adjacent Microcell therein.So, this method is further comprising the steps of： Step 1002, the user equipment (UE) is synchronized to macrocell, sets up and is connected with macro base station.
Step 1003, the user equipment (UE) receives the system information of macro base station notice, and obtains the system information for the Microcell being included in the system information；
Wherein, the system information of the Microcell in the system information can be read in the user equipment (UE), and the system information of the Microcell 1 is the system information updated.
Step 1004, the macro base station is according to the measurement result of the reported by user equipment UE, and the UE is switched to target Microcell by decision, and notifies the corresponding Target Cell Identifier information of the UE；
In the present embodiment, the measurement result of the reported by user equipment UE may include the RRM measured values such as RSRP and RSRQ, and similarly to the prior art, here is omitted for the mode of the Target cell of decision switching；The target Microcell is Pico cel l -1 herein.
Step 1005, the user equipment (UE) receives the identification information of the Target cell, and the system information of the target Microcell is found from the system information of the Microcell of acquisition.
Step 1006, the user equipment (UE) is suppressed using the system information of the target Microcell to the interference that the target Microcell is subject to.
Above example is when being changed with the system information of Microcell, in the case of there is no the system information of the change due to the user equipment (UE), the UE is synchronized to macrocell first, the system information of Microcell change is obtained from the macrocell, then when the user equipment is switched to the Microcell, the user equipment (UE) can be suppressed using the system information of change to the interference that the Microcell is subject to, it is ensured that the UE normally works in the Microcell.
Figure 11 A are the schematic diagram of a scenario of the embodiment of the present invention 10, and Figure 11 B are the disturbance restraining method flow charts of the embodiment of the present invention 10.With the user equipment (UE) current home of connection status in Microcell 1 (Pico cel l -1), and positioned at the CRE regions of the Microcell 1, to exemplified by the mobile scene in another Microcell 2 (Pico cel l -2), target Microcell is Pico cel l -2 herein, there are two kinds of interference simultaneously in this case.
As shown in Figure 11 B, this method includes：
Step 1101, the base station of Microcell 1 obtains the system information of neighbor cell；
In the present embodiment, the system information of the neighbor cell may include the system information of macrocell and Microcell 2, and the mode of acquisition is as described in embodiment 1 to 2, and here is omitted.
Step 1102, the micro-base station is by the system information notifying user equipment of the neighbor cell of acquisition.
Step 1103, belong to the Microcell 1 user equipment (UE) receive the Microcell 1 base station broadcast the neighbor cell system information. Step 1104, the system information of the neighbor cell is stored；
In the present embodiment, can be by the storage corresponding with system information of the cell identity information of the neighbor cell.
Step 1105, the user equipment (UE) determines the interference type；
In the present embodiment, when the UE is moved to the CRE regions of Microcell 2 from Microcell 1, the user equipment can voluntarily judge its type being interfered, in this case by the CRS interference and the interference of the synchronizing channel of macrocell, broadcast channel and/or broadcast message of two kinds of interference, i.e. macrocell.
Step 1106, the user equipment is suppressed using the system information of the macrocell and to the CRS interference from the macrocell, i.e. the demodulation to data/control channel strengthens；And the interference to the synchronizing channel from macrocell, broadcast channel and/or broadcast signaling suppresses, i.e. the cell detection to Microcell 2 and identification strengthens the demodulation to synchronizing channel, broadcast channel and/or broadcast signaling.
Above-described embodiment is with the sending system information of Microcell 1, and user equipment side judges the explanation that is carried out exemplified by interference type, in addition, above-mentioned judgement can also be carried out in the base station side of Microcell 1, and it is similar to the above embodiments come situation about indicating with display or implicit mode, here is omitted.
Figure 12 is the disturbance restraining method flow chart of the embodiment of the present invention 11.With user equipment (UE) current home in Microcell 1 (Pico cel l -1), and exemplified by the scene restarted or started shooting in the CRE regions of the Microcell 1 (Pico cel l -1).As shown in figure 12, this method includes：
Step 1201, when user equipment (UE) is restarted or started shooting in the CRE regions of Microcell 1, during relevant information without memory neighbor cell, the user equipment (UE) is synchronized to macrocell, sets up and is connected with macro base station；
Wherein, macrocell is synchronized to, the process being connected is set up similarly to the prior art with macro base station, here is omitted.
Step 1202, the user equipment (UE) receives the system information of macro base station notice, and obtains the system information of the Microcell.
Step 1203, the macro base station is according to the measurement result of the reported by user equipment UE, and the UE is switched to target Microcell by decision, and notifies the corresponding Target Cell Identifier information of the UE；
In the present embodiment, the measurement result of the reported by user equipment UE may include the RRM measured values such as RSRP and RSRQ, and similarly to the prior art, here is omitted for the mode of the Target cell of decision switching；The target Microcell is Pico cel l -1 herein.
Step 1204, the user equipment (UE) receives the Target Cell Identifier information, and the system information of the target Microcell is found from the system information of the Microcell of acquisition. Step 1205, the user equipment (UE) carries out corresponding AF panel using the system information of the target Microcell.From above-described embodiment, the system information of macro base station or micro-base station collection neighbor cell, and notifying user equipment so that user equipment can utilize above- mentioned information to carry out AF panel.
Pass through the embodiment of the present invention, it is ensured that the stability of user's cell searching and cell identification, and the CRS interference of the strong cell of macrocell can be mitigated, the signalling complexity of system can be simplified, it is adaptable to the problem of due to being disturbed caused by the bias of balance.
The embodiment of the present invention additionally provides a kind of base station and user equipment, as described in the following examples.Because the principle that base station and user equipment solve problem is similar to the above-mentioned information acquisition method based on the base station and user equipment, therefore implementations of the base station and user equipment may refer to the implementation of method, repeatedly in place of repeat no more.
Figure 13 is that the base station of the embodiment of the present invention 12 constitutes schematic diagram.As shown in figure 13, the base station 1300 includes：The notification unit 1302 of first acquisition unit 1301 and first;Wherein, first acquisition unit 1301 is arranged to obtain the relevant parameter of neighbor cell, and/or serving cell；First notification unit 1302 is arranged to relevant parameter notifying user equipment, and the wherein relevant parameter is used for user equipment according to the corresponding AF panel of relevant parameter progress；Wherein, the relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID:Relevant parameter in CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and system information block -1 (SIB-1).
In the present embodiment, the base station can be macro base station, or micro-base station.
In the present embodiment, the mode of the system information of the acquisition of first acquisition unit 1301 neighbor cell is as described in embodiment 1, and here is omitted.
From the above, first acquisition unit 1301 obtains the relevant parameter of one or more adjacent cells, the relevant information of the neighbor cell of acquisition and/or this cell is notified the user equipment by the first notification unit 1302, so, the neighbor cell and/or the system information of this cell can be acquired by belonging to the user equipment of the macrocell or Microcell, so, when the user equipment (UE) is switched to the neighbor cell and is in the CRE regions of the neighbor cell, the user equipment (UE) can carry out corresponding AF panel using the relevant parameter of the neighbor cell obtained.
In the present embodiment, when the relevant parameter includes the partial parameters information of system information, first acquisition unit 1301 is arranged to obtain the system information of neighbor cell and/or serving cell, and selects relevant parameter from the system information of neighbor cell, and/or serving cell.Specifically chosen mode is as described in above-mentioned embodiment, and here is omitted. Figure 14 is that the base station of the embodiment of the present invention 13 constitutes schematic diagram.As shown in figure 14, the base station 1400 includes：The notification unit 1402 of first acquisition unit 1401 and first, its effect is similar to Example 12, and here is omitted.
As shown in figure 14, the base station 1400 also includes：Second acquisition unit 1403, is arranged to obtain between serving cell and neighbor cell, or the mutual interference relationships between serving cell, neighbor cell and user equipment；Also, first acquisition unit 1401 is arranged to the mutual interference relationships according to acquisition to select relevant parameter.In the present embodiment, if base station side indicates interference in manner shown, base station 1400 also includes：First processing units 1404, first processing units 1404 are arranged to add the configured information for indicating interference type in relevant parameter；And the first notification unit 1402 notifies the relevant parameter for including configured information.
From the above, first acquisition unit 1401 obtains the relevant parameter of one or more adjacent cells, second acquisition unit 1403 determines mutual interference relationships, and first processing units 1404 add configured information in the relevant parameter according to the mutual interference relationships；The relevant parameter of the neighbor cell and/or this cell is notified the user equipment by the first notification unit 1402, so, the neighbor cell and/or the system information of this cell can be acquired by belonging to the user equipment of the macrocell or Microcell, so, when the user equipment (UE) is switched to the neighbor cell and is in the CRE regions of the neighbor cell, the user equipment (UE) can carry out corresponding AF panel using the relevant parameter of the neighbor cell obtained.
The embodiment of the present invention 14 also provides a kind of base station, is with the difference of embodiment 12, indicates that interference is similar by base station side in implicit mode.Wherein, first acquisition unit 1401 be arranged to according to mutual interference relationships and it is predetermined be used to indicate the information of interference type obtaining relevant parameter, wherein, include the predetermined information for being used to indicate interference type in the relevant parameter of acquisition.The effect of other units is similar to Example 2, and here is omitted.
In the base station described in above-described embodiment 12-14, the base station also includes：
First receiving unit, the first receiving unit is arranged to receive the system information for the change that neighbor cell is reported；Second notification unit, the second notification unit is arranged to the system information notifying user equipment of change.Pass through the embodiment of the present invention, it is ensured that the stability of user's cell searching and cell identification, and can also carry out CRS AF panels, solve problems of the prior art.
Figure 15 is that the user equipment of the embodiment of the present invention 15 constitutes schematic diagram.As shown in figure 15, user equipment 1500 includes：Second receiving unit 1501, the second receiving unit 1501 is arranged to receive neighbor cell and/or the relevant parameter of serving cell of the base station notice of affiliated serving cell；
The relevant parameter includes system information or including the partial parameters information in system information；System information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and system information block-l (SIB-l) In relevant parameter.
As shown in figure 15, user equipment 1500 also includes：Second processing unit 1502, second processing unit 1502 is arranged to carry out corresponding AF panel according to the relevant parameter of reception.
As shown in figure 15, user equipment 1500 also includes the first determining unit 1503, and the first determining unit 1503 is arranged to determine the interference type that the user equipment is interfered
In the present embodiment, the relevant parameter also includes the configured information for being used to indicate interference type.
So, the first determining unit 1503 is arranged to before second processing unit 1502 carries out AF panel, and interference type is determined according to configured information.
In the present embodiment, the predetermined information for being used to indicate interference type is included in the relevant parameter；
So, the first determining unit 1503 is arranged to before second processing unit 1502 carries out AF panel, and interference type is determined according to the predetermined information for indicating interference type.
In addition, the first determining unit 1503, which is configured to measurement, voluntarily determines the interference type, as described in Example 2, here is omitted.
In the present embodiment, user equipment 1500 also includes：Reporting unit（It is not shown）, reporting unit is arranged to report the measurement result of serving cell and neighbor cell to base station so that base station obtains the mutual interference relationships between serving cell, neighbor cell and user equipment according to the measurement result reported.
From above-described embodiment, user equipment (UE) can receive the system information of the base station notice of current affiliated Microcell or macrocell, to obtain the corresponding system information of neighbor cell.Therefore, when the user equipment is switched or cell reselection is to Target cell, the interference that the user equipment can be received by the system information of the Microcell obtained to the Target cell suppresses, interference to the cell special reference by strong cell carries out interference mitigation, and/or to being demodulated enhancing by the interference of the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling, ensure the stability of user's cell searching and cell identification, and interference can be mitigated, solve problems of the prior art.
The embodiment of the present invention also provides a kind of CoMP network systems, and the network system includes macro base station, and the macro base station can be the base station described in above-described embodiment；One or more micro-base stations, the micro-base station can be the base station described in above-described embodiment；One or more user equipmenies, the user equipment is the user equipment described in above-described embodiment.Wherein, the effect of the macro base station and micro-base station and user equipment is as described in above-mentioned embodiment, and here is omitted.
Pass through above-mentioned CoMP network systems so that user equipment (UE) can receive the system information that the base station of current affiliated subdistrict is notified, to obtain the system information of neighbor cell.And when the user equipment is switched to or cell reselection is to the neighbor cell, the interference that the user equipment can be subject to by the system information of the neighbor cell obtained to the Target cell Suppressed, interference i.e. to the cell special reference by strong cell carries out interference mitigation, and/or to being demodulated enhancing by the interference of the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling, ensure the stability of user's cell searching and cell identification, and mitigate interference, solve problems of the prior art.
The embodiment of the present invention also provides a kind of computer-readable program, wherein when performing described program in a base station, described program causes computer to perform the disturbance restraining method as described in embodiment 1, embodiment 3 to 11 in the base station.
The embodiment of the present invention also provides a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method as described in embodiment 1, embodiment 3 to 11 in a base station.
The embodiment of the present invention also provides a kind of computer-readable program, wherein when performing described program in a user device, described program causes computer to perform the disturbance restraining method as described in embodiment 2, embodiment 3 to 11 in the user equipment.
The embodiment of the present invention also provides a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method as described in embodiment 2, embodiment 3 to 11 in a user device.
Apparatus and method more than of the invention can be realized by hardware, can also be realized by combination of hardware software.The present invention relates to such computer-readable program, when the program is performed by logical block, the logical block can be made to realize devices described above or component parts, or the logical block is realized various methods or step described above.Logical block is such as the processor used in field programmable logic part, microprocessor, computer.The invention further relates to the storage medium for storing procedure above, such as hard disk, disk, CD, DVD, flash memory.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these descriptions are all exemplary, it is not limiting the scope of the invention.Those skilled in the art can make various variants and modifications to the present invention according to spirit and principles of the present invention, and these variants and modifications are also within the scope of the invention.

Claims (1)

  1. Claims
    1st, a kind of disturbance restraining method in heterogeneous network layering networking, methods described includes：
    The base station of the affiliated serving cell of user equipment obtains the relevant parameter of neighbor cell, and/or serving cell；The relevant parameter is notified into the user equipment, the user equipment is carried out corresponding AF panel using the relevant parameter；
    Wherein, the relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
    2nd, according to the method described in claim 1, wherein, in the partial parameters information of the relevant parameter including system information, the base station, which obtains neighbor cell and/or the relevant parameter of serving cell, to be included：
    The base station selects the relevant parameter from the system information of the neighbor cell, and/or the serving cell.
    3rd, method according to claim 2, wherein, before the relevant parameter for obtaining neighbor cell and/or serving cell in the base station of the affiliated serving cell of the user equipment, methods described also includes：
    Obtain between the serving cell and the neighbor cell, or the mutual interference relationships between the serving cell, the neighbor cell and the user equipment；
    And the base station selects the relevant parameter according to the mutual interference relationships of acquisition.
    4th, according to the method described in claim 1, wherein, methods described also includes：
    The base station is by receiving system information that the Operations, Administration and Maintenance functional entity of network side is issued or the system information of the neighbor cell and/or serving cell being obtained by base station information interaction.
    5th, according to the method described in claim 1, wherein, the base station by broadcast or user's dedicated signaling in the way of the relevant parameter notified into the user equipment.
    6th, method according to claim 3, wherein, the base station is by receiving mutual interference relationships that the Operations, Administration and Maintenance functional entity of network side is issued or obtaining the mutual interference relationships by base station information interaction or according to the measurement result of the user equipment to report.
    7th, method according to claim 3, wherein, in the base station according to the mutual interference relationships of acquisition come after selecting the relevant parameter, methods described also includes：
    The configured information for indicating interference type is added in the relevant parameter；
    And the base station notifies the relevant parameter for including the configured information. 8th, method according to claim 7, wherein, the quantity of the configured information is consistent with the quantity of cell ID, is respectively used to indicate the interference type of each cell；Or, for the consistent neighbor cell of interference type and/or serving cell, the configured information is one, the unified interference type for indicating all cells.
    9th, method according to claim 3, wherein, in the base station according to the mutual interference relationships of acquisition come after selecting the relevant parameter, methods described also includes：
    The predetermined information for being used to indicate interference type is included in the relevant parameter of selection according to the mutual interference relationships so that the user equipment carries out corresponding AF panel according to the predetermined information.
    10th, the method according to claim 7 or 9, wherein, the interference type is to be disturbed by the interference of the cell special reference of strong cell, and/or by the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling.
    11st, according to the method described in claim 1, wherein, methods described also includes：
    Receive the system information for the change that the neighbor cell is reported；
    The system information of change is notified into the user equipment.
    12nd, a kind of disturbance restraining method in heterogeneous network layering networking, methods described includes：
    Neighbor cell and/or the relevant parameter of the serving cell that the base station that user equipment receives affiliated serving cell is notified；The relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：
    CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
    13rd, method according to claim 12, wherein, methods described also includes：
    Corresponding AF panel is carried out according to the relevant parameter of reception.
    14th, method according to claim 13, wherein, before corresponding AF panel is carried out according to the relevant parameter of reception, methods described also includes：Determine the interference type that the user equipment is interfered.
    15th, method according to claim 14, wherein, the user equipment determines interference type by measuring；Or,
    When the relevant parameter also includes being used to indicate the configured information of interference type, the user equipment determines interference type according to the configured information；Or,
    In the relevant parameter comprising predetermined when being used to indicate the information of interference type, the user equipment determines interference type according to the predetermined information for indicating interference type.
    16th, method according to claim 14, wherein, the interference type is the cell-specific by strong cell The interference of reference signal, and/or disturbed by the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling；And it is described that corresponding AF panel is carried out according to the relevant parameter of reception, including：
    Interference to the cell special reference by strong cell carries out interference mitigation, and/or to being demodulated enhancing by the interference of the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling.
    17th, method according to claim 13, wherein, methods described also includes：
    The user equipment reports the measurement result of the serving cell and neighbor cell to the base station so that the base station obtains the mutual interference relationships between the serving cell, neighbor cell and user equipment according to the measurement result reported.
    18th, a kind of base station, the base station includes：
    First acquisition unit, the first acquisition unit is arranged to obtain the relevant parameter of neighbor cell, and/or serving cell；
    First notification unit, first notification unit is arranged to the relevant parameter notifying the user equipment, the user equipment is carried out corresponding AF panel using the relevant parameter；
    Wherein, the relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
    19th, base station according to claim 18, wherein, when the relevant parameter includes the partial parameters information of system information, the first acquisition unit is arranged to obtain the system information of neighbor cell and/or serving cell, and selects from the system information of the neighbor cell, and/or the serving cell relevant parameter.
    20th, base station according to claim 18, wherein, the base station also includes：
    Second acquisition unit, the second acquisition unit is arranged to obtain between the serving cell and the neighbor cell, or the mutual interference relationships between the serving cell, the neighbor cell and the user equipment；Also, the first acquisition unit is arranged to the mutual interference relationships according to acquisition to select the relevant parameter.
    21st, base station according to claim 20, wherein, the base station also includes：
    First processing units, the first processing units are arranged to add the configured information for indicating interference type in the relevant parameter according to the mutual interference relationships；
    And first notification unit notifies the relevant parameter for including the configured information.
    22nd, base station according to claim 20, wherein, The first acquisition unit be arranged to according to the mutual interference relationships and it is predetermined be used to indicate the information of interference type obtaining the relevant parameter, wherein, include the predetermined information for being used to indicate interference type in the relevant parameter of acquisition.
    23rd, base station according to claim 18, wherein, the base station also includes：
    First receiving unit, first receiving unit is arranged to receive the system information for the change that the neighbor cell is reported；
    Second notification unit, second notification unit is arranged to the system information of change notifying the user equipment.
    24th, a kind of user equipment, the user equipment includes：
    Second receiving unit, second receiving unit is arranged to receive neighbor cell and/or the relevant parameter of the serving cell of the base station notice of affiliated serving cell；
    The relevant parameter includes system information or including the partial parameters information in system information；The system information includes the one or more in following information corresponding with cell ID：CRS port numbers, System Frame Number, PHICH configuration informations, cyclic prefix type information, downlink bandwidth information, MBSFN configuration informations, and the relevant parameter in system information block -1.
    25th, user equipment according to claim 24, wherein, the user equipment also includes：Second processing unit, the second processing unit is arranged to carry out corresponding AF panel according to the relevant parameter of reception.
    26th, user equipment according to claim 25, wherein, the user equipment also includes the first determining unit, and first determining unit is arranged to determine the interference type that the user equipment is interfered.
    27th, user equipment according to claim 26, wherein, first determining unit is configured to measurement to determine the interference type；Or,
    First determining unit is arranged to, when the relevant parameter also includes being used to indicate the configured information of interference type, interference type be determined according to the configured information；Or,
    First determining unit is arranged in the relevant parameter comprising predetermined when being used to indicate the information of interference type, and interference type is determined according to the predetermined information for indicating interference type.
    28th, user equipment according to claim 26, wherein, the interference type is to be disturbed by the interference of the cell special reference of strong cell, and/or by the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling；Also, the second processing unit is arranged to the progress of the interference to the cell special reference by strong cell Interference mitigation, and/or to being demodulated enhancing by the interference of the synchronizing channel of strong cell, broadcast channel and/or broadcast signaling.
    29th, user equipment according to claim 24, wherein, the user equipment also includes：Reporting unit, the reporting unit is arranged to report the measurement result of the serving cell and neighbor cell to the base station so that the base station obtains the mutual interference relationships between the serving cell, neighbor cell and user equipment according to the measurement result reported.
    30th, a kind of network system, the network system includes：
    Macro base station, the macro base station is the base station described in any one claim of claim 18 to 23；One or more micro-base stations, the micro-base station is the base station described in any one claim of claim 18 to 23；
    One or more user equipmenies, the user equipment is the user equipment described in any one claim of claim 24 to 29.
    31st, a kind of computer-readable program, wherein when performing described program in a base station, described program causes computer to perform the disturbance restraining method in the heterogeneous network layering networking as described in any one claim of claim 1 to 12 in the base station.
    32nd, a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method in the heterogeneous network layering networking as described in any one claim of claim 1 to 12 in a base station.
    33rd, a kind of computer-readable program, wherein when performing described program in a user device, described program causes computer to perform the disturbance restraining method in the heterogeneous network layering networking as described in any one claim of claim 13 to 17 in the user equipment.
    34th, a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform the disturbance restraining method in the heterogeneous network layering networking as described in any one claim of claim 13 to 17 in a user device.
CN201280072729.9A 2012-05-11 2012-05-11 Interference suppression method, device and system in hierarchical networking of heterogeneous network Pending CN104254978A (en)

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Application publication date: 20141231