CN105792277B - Interference control method and equipment - Google Patents

Interference control method and equipment Download PDF

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Publication number
CN105792277B
CN105792277B CN201610097254.9A CN201610097254A CN105792277B CN 105792277 B CN105792277 B CN 105792277B CN 201610097254 A CN201610097254 A CN 201610097254A CN 105792277 B CN105792277 B CN 105792277B
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cell
base station
interfered cell
crs
interference control
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CN105792277A (en
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柴丽
余政
蔺波
马莎
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201610097254.9A priority Critical patent/CN105792277B/en
Priority claimed from CN201110287939.7A external-priority patent/CN103024751B/en
Publication of CN105792277A publication Critical patent/CN105792277A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0242Determining whether packet losses are due to overload or to deterioration of radio communication conditions

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

Abstract

The present invention relates to interference control method equipment.Interference control method includes: execution nearby region measurement, and signal in tested adjacent area is selected to send at least one adjacent area of intensity greater than the signal transmission intensity of serving cell as interfered cell;The Physical Broadcast Channel PBCH for parsing the interfered cell, obtains the antenna port number of the interfered cell;According to the Physical Cell Identifier PCI of the interfered cell and the antenna port number, the position cell reference signaling CRS of the interfered cell is obtained;According to the CRS location information, interference control is carried out.According to embodiments of the present invention, interference of the neighboring area signal to the user equipment in serving cell is reduced, communication quality of the user equipment in serving cell is improved;Also making some Hot Spot preferably is that macrocell shares traffic load.

Description

Interference control method and equipment
Technical field
The present embodiments relate to wireless communication fields, control more specifically to the interference in wireless communication system Method and apparatus.
Background technique
Wireless communication system can provide the wireless traffics such as speech, data.Common wireless communication system is a multiple access The wireless system of access.In a wireless communication system, base station emits data and/or control to user equipment on the uplink Information processed, and the data and/or control information of user equipment are received on uplink.Similar, user equipment (User Equipment, abbreviation UE) data and/or control information are transmitted for base station on uplink, and base is received on the uplink The data emitted of standing and/or control information.Below will with long term evolution (Long Term Evolution, abbreviation LTE) and/or For senior long term evolution (Long Term Evolution Advanced, abbreviation LTE-A) wireless communication system, this hair is illustrated Bright technical background.
In order to meet or promoted the performance requirement of LTE-A, disposed not in homogeneous network (homogeneous network) The base station (base station of such as low transmitting power or transmitting/receiving node) of same type or different systems, with enhance network covering and Performance, such network structure are referred to as heterogeneous network (Heterogeneous network).Below in the middle part of heterogeneous network Big transmission power base station such as macro base station is affixed one's name to and with macro base station (MeNB) using the still different types of low transmitting of same standard For power base station (abbreviation low power base station, lower power node, LPN), the technical background that the present invention is further explained.
In order to improve the spectrum utilization efficiency of system, uplink and/or down frequency spectrum resources and MeNB that LPN can be made configurable Configurable uplink and/or down frequency spectrum resources carries out complete or partial spectrum reuse.At this point, be configured with due to LPN and MeNB is identical or the identical frequency spectrum resource in part, therefore under LPN (or UE of LPN service) and MeNB (or MeNB service UE) People having a common goal (or with frequency) interference can be generated between row (or uplink) transmission.Interference will affect LPN and MeNB downlink channel transmission And the reliability of up channel (channel includes control channel and data channel) detection.
At present using time division multiplexing minizone (Time Division Multiplexing, abbreviation TDM) in LTE-A standard The method of interference coordination (Inter Cell Interference Coordination, abbreviation ICIC) handles heterogeneous network scene The interference of lower minizone.Interference base station by certain subframes sets low transmission power or without business transmission (i.e. business Transimission power is that zero), above-mentioned subframe can be referred to as approximate empty frame (Almost Blank Subframe, abbreviation ABS).Quilt Interference base station carries out the strongly disturbing UE scheduling in the base station that is interfered in the corresponding subframe of ABS subframe that the interference base station configures Business transmission, to guarantee the transmission performance of the aggrieved UE of interfered base station.But for backwards compatibility, ABS subframe can still be sent out Cell reference signaling (Cell Reference Signaling, abbreviation CRS) and other necessary control information are sent, such as synchronous letter Order and system message.At the edge of cell by strongly disturbing situation, the CRS signaling of the ABS subframe of adjacent area still can to by Physical Downlink Control Channel (Physical Downlink Control Channel, abbreviation of the UE of interfered cell to downlink ) and the signaling on Physical Downlink Shared Channel (Physical Downlink Share Channel, abbreviation PDSCH) PDCCH/ The decoding of data causes very big threat.It is therefore desirable to solve the technical solution of this interference problem.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a kind of method and apparatus that can weaken adjacent area interference.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
Nearby region measurement is executed, the signal that signal transmission intensity is greater than serving cell in tested adjacent area is selected to send intensity extremely A few adjacent area is as interfered cell;
The Physical Broadcast Channel PBCH for parsing the interfered cell, obtains the antenna port number of the interfered cell;
According to the Physical Cell Identifier PCI of the interfered cell and the antenna port number, the interfered cell is obtained The position cell reference signaling CRS;
According to the CRS location information, interference control is carried out.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
Determine interfered cell, and obtain interfered cell PCI and the antenna port number;
Interference control message is sent to UE, wherein the interference control message includes the PCI and antenna of the interfered cell Port number,
PCI and the antenna port number so as to the UE according to the interfered cell, obtain the CRS of the interfered cell Position;
According to the CRS location information, interference control is carried out.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
Measurement report is sent to base station, wherein the measurement report includes the RSRP value of serving cell and the RSRP of adjacent area Value, so that at least one adjacent area that the base station determines that RSRP value is greater than the RSRP value of the serving cell is interfered cell, and So that the base station obtains the PCI and antenna port number of the interfered cell;
The interference control message that the base station is sent is received, wherein the interference control message includes the interfered cell PCI and antenna port number;
According to the PCI of the interfered cell and the antenna port number, the position CRS of the interfered cell is obtained;
It is subtracted in the signal of the CRS position acquisition from the interfered cell received signal, alternatively, being discarded in described The signal of CRS position acquisition.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
Nearby region measurement is executed, the signal that signal transmission intensity is greater than serving cell in tested adjacent area is selected to send intensity extremely A few adjacent area is as interfered cell;
Request message is sent to base station, for obtaining the antenna port number of the interfered cell, wherein the request message Carry the PCI of the interfered cell;
The response message for the request message that the base station is sent is received, wherein described in response message carrying The antenna port number of the PCI of interfered cell and the interfered cell;
According to the antenna port number of the PCI of the interfered cell and the interfered cell, the CRS of the interfered cell is obtained Position;
It is subtracted in the signal of the CRS position acquisition from the interfered cell received signal, alternatively, being discarded in described The signal of CRS position acquisition.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
First base station sends X2 to the second base station and establishes request message, wherein the X2 is established and carried first in request message The PCI and antenna port number of the serving cell of base station, and/or, the CSI-RS information of the first base station is carried,
So that second base station obtains institute according to the PCI and antenna port number of the serving cell of the first base station The position CRS of first base station is stated, and is judged under second base station with the presence or absence of the position CRS of serving cell and first base The position CRS stood conflicts, and/or judges whether CSI-RS and the institute of second base station according to the CSI-RS of the first base station State the CSI-RS conflict of first base station;
When the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS, the first base station changes The PCI of its serving cell and/or CSI-RS for changing the first base station.
According to embodiments of the present invention, a kind of interference control method is proposed, which comprises
Second base station, which receives first base station and sends X2, establishes request message, wherein the X2, which is established in request message, carries the The PCI and antenna port number of the serving cell of one base station, and/or, carry the CSI-RS information of the first base station;
Second base station obtains described the according to the PCI and antenna port number of the serving cell of the first base station The position CRS of one base station, and judge under second base station with the presence or absence of the position CRS of serving cell and the first base station The conflict of the position CRS, and/or judge whether according to the CSI-RS of the first base station CSI-RS and described the of second base station The CSI-RS of one base station conflicts;
When the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS, second base station changes The PCI of its serving cell and/or CSI-RS for changing second base station.
According to embodiments of the present invention, a kind of user equipment is proposed, the user equipment includes:
Measuring unit selects signal in tested adjacent area to send the letter that intensity is greater than serving cell for executing nearby region measurement Number send intensity at least one adjacent area as interfered cell;
Resolution unit obtains the day of the interfered cell for parsing the Physical Broadcast Channel PBCH of the interfered cell Line port number;
CRS position acquisition unit, for the Physical Cell Identifier PCI and the antenna port according to the interfered cell Number, obtains the position cell reference signaling CRS of the interfered cell;
Control unit is interfered, for being subtracted in the signal of the CRS position acquisition from the received letter in the interfered cell Number, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, a kind of base station is proposed, the base station includes:
Determination unit, for determining interfered cell, and obtain interfered cell PCI and the antenna port number;
Transmission unit, for sending interference control message to UE, wherein the interference control message includes that the interference is small The PCI and antenna port number in area,
PCI and the antenna port number so as to the UE according to the interfered cell, obtain the CRS of the interfered cell Position,
It is subtracted in the signal of the CRS position acquisition from the interfered cell received signal, alternatively, being discarded in described The signal of CRS position acquisition.
According to embodiments of the present invention, a kind of user equipment is proposed, the user equipment includes:
Transmission unit, for sending measurement report to base station, wherein the measurement report includes the RSRP value of serving cell And the RSRP value of adjacent area, so that the base station determines that RSRP value is greater than at least one adjacent area of the RSRP value of the serving cell For interfered cell, and the base station is made to obtain the PCI and antenna port number of the interfered cell;
Receiving unit, the interference control message sent for receiving the base station, wherein the interference control message includes The PCI and antenna port number of the interfered cell;
CRS position acquisition unit, for according to the interfered cell PCI and the antenna port number, obtain described dry Disturb the position CRS of cell;
Control unit is interfered, for being subtracted in the signal of the CRS position acquisition from the received letter in the interfered cell Number, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, a kind of user equipment is proposed, the user equipment includes:
Measuring unit selects signal in tested adjacent area to send the letter that intensity is greater than serving cell for executing nearby region measurement Number send intensity at least one adjacent area as interfered cell;
Transmission unit, for sending request message, to obtain the antenna port number of the interfered cell, wherein institute to base station State the PCI that request message carries the interfered cell;
Receiving unit, the response message for the request message sent for receiving the base station, wherein the sound Message is answered to carry the PCI of the interfered cell and the antenna port number of the interfered cell;
CRS position acquisition unit, for according to the PCI of the interfered cell and the antenna port number of the interfered cell, Obtain the position cell reference signaling CRS of the interfered cell;
Control unit is interfered, for being subtracted in the signal of the CRS position acquisition from the received letter in the interfered cell Number, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, a kind of base station is proposed, the base station includes:
X2 request unit establishes request message for sending X2 to the second base station, wherein the X2 is established in request message The PCI and antenna port number of the serving cell of the base station are carried, and/or, the CSI-RS information of the base station is carried,
So that second base station obtains the base according to the PCI and antenna port number of the serving cell of the base station The position CRS stood, and judge the position CRS under second base station with the presence or absence of the position CRS of serving cell and the base station Conflict, and/or judge whether the CSI-RS of second base station and the CSI-RS of the base station according to the CSI-RS of the base station Conflict;
Control unit, for changing when the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS Become the PCI of the serving cell of the base station and/or changes the CSI-RS of the base station.
According to embodiments of the present invention, a kind of base station is proposed, the base station includes:
Receiving unit establishes request message for receiving first base station transmission X2, wherein the X2 is established in request message The PCI and antenna port number of the serving cell of first base station are carried, and/or, carry the CSI-RS information of the first base station;
Conflict determination unit, for being obtained according to the PCI and antenna port number of the serving cell of the first base station The position CRS of the first base station, and judge under the base station with the presence or absence of the position CRS of serving cell and the first base station The conflict of the position CRS, and/or judge whether according to the CSI-RS of the first base station CSI-RS and described first of the base station The CSI-RS of base station conflicts;
Control unit, for changing when the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS Become the PCI of the serving cell of the base station and/or changes the CSI-RS of the base station.
According to embodiments of the present invention, interference of the neighboring area signal to the user equipment in serving cell is reduced, use is improved Communication quality of the family equipment in serving cell;Also making some Hot Spot preferably is that macrocell shares traffic load.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the flow chart of interference control method according to an embodiment of the present invention;
Fig. 2 is the flow chart of the interference control method of another embodiment according to the present invention;
Fig. 3 is the flow chart of the interference control method of another embodiment according to the present invention;
Fig. 4 is the flow chart of the interference control method of another embodiment according to the present invention;
Fig. 5 is the schematic configuration diagram of user equipment according to an embodiment of the present invention;
Fig. 6 is the schematic configuration diagram of the user equipment of further embodiment according to the present invention;
Fig. 7 is the schematic configuration diagram of base station according to an embodiment of the present invention;
Fig. 8 is the schematic configuration diagram of the user equipment of another embodiment according to the present invention;
Fig. 9 is the schematic configuration diagram of the user equipment of another embodiment according to the present invention;
Figure 10 is the schematic configuration diagram of the base station of another embodiment according to the present invention;
Figure 11 is the schematic configuration diagram of the base station of further embodiment according to the present invention;
Figure 12 is the schematic configuration diagram of the base station of further embodiment according to the present invention;With
Figure 13 is the schematic configuration diagram of the base station of another embodiment according to the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
Technical solution of the present invention can be applied to various communication systems, such as: GSM, CDMA (CDMA, Code Division Multiple Access) system, wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS, General Packet Radio Service), long term evolution (LTE, Long Term Evolution) etc..
User equipment (UE, User Equipment), also referred to as mobile terminal (Mobile Terminal), movement User equipment etc., can be through wireless access network (for example, RAN, Radio Access Network) and one or more core nets It is communicated, user equipment can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and with mobile terminal Computer, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they with Wireless access network exchanges language and/or data.
Base station can be the base station (BTS, Base Transceiver Station) in GSM or CDMA, be also possible to Base station (NodeB) in WCDMA can also be evolved base station (eNB or e-NodeB, evolutional Node in LTE B), the present invention does not limit, but for convenience of description, and following embodiments are illustrated by taking eNB as an example.
Fig. 1 is the flow chart of interference control method 100 according to an embodiment of the present invention.As shown in Figure 1, interference control method 100 include:
110: executing nearby region measurement, the signal that signal transmission intensity is greater than serving cell in tested adjacent area is selected to send intensity At least one adjacent area as interfered cell.According to embodiments of the present invention, it is, for example, that reference signal connects that the signal, which sends intensity, Receive power (Reference Signal Receiving Power, abbreviation RSRP) and/or Reference Signal Received Quality (Reference Signal Received Quality, abbreviation RSRQ).
120: parsing Physical Broadcast Channel (Physical Broadcasting Channel, the abbreviation of the interfered cell PBCH), the antenna port number of the interfered cell is obtained;
130: according to the Physical Cell Identifier (Physical Cell Indicator, abbreviation PCI) of the interfered cell and The antenna port number obtains cell reference signaling (Cell Reference Signaling, the abbreviation of the interfered cell CRS) position;
140: according to the CRS location information, carrying out interference control, such as subtracted in the signal of the CRS position acquisition From the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, UE can measure the wireless signal of serving cell, and thus monitoring service is small The quality of the radio resource signal in area.For example, UE can be indicated by channel quality (Channel Quality Indictor, Abbreviation CQI) measurement come obtain Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, Abbreviation SINR) value or UE can survey by wireless resource management (Radio Resources Management, abbreviation RRM) Amount is to obtain RSRQ value.SINR value or RSRQ value can be compared by UE with the thresholding Thic that serving BS is sent to UE.Such as Fruit SINR or RSRQ are lower than thresholding Thic, then it represents that UE is caused signal quality to be deteriorated by the interference of neighboring community, needs Implement interference control.If SINR or RSRQ is higher than thresholding Thic, then it represents that the interference for the neighboring community that UE is subject to is not Seriously, it can be controlled without interference.
According to embodiments of the present invention, when executing nearby region measurement in step 110, it can choose RSRP/ in tested adjacent area The adjacent area that amount RSRQ big compared with the RSRP/RSRQ of serving cell equals or exceeds thresholding Thag (for example, 6dB) is small as interfering Area.Here interfered cell is indicated to the stronger adjacent area of UE signal interference in serving cell.The quantity of interfered cell can be selected Select one or more.For example, being sorted according to the RSRP/RSRQ of adjacent area height, select RSRP/RSRQ than serving cell RSRP/RSRQ big amount is more than several adjacent areas of Thag as interfered cell.
According to embodiments of the present invention, in step 130 according to the Physical Cell Identifier PCI of the interfered cell and the day Line port number obtains the position cell reference signaling CRS of the interfered cell, needs to synchronize adjacent area, to obtain neighbour The PCI in area, while also having obtained the PCI of interfered cell.It, can be in step 140 after obtaining the position CRS of interfered cell In to from interfered cell received signal carry out interference elimination processing.
According to embodiments of the present invention, in step 140, when on the radio resource of the position CRS that UE receives interfered cell Data or signaling when, UE will implement interference coordination.For example, UE will be received at the position CRS from the interfered cell Signal resolution come out, and it is received from the position CRS whole signals (including from serving cell signal and The signal of all adjacent areas) in eliminate, or interfered cell interference strongly when, UE can be by the CRS Whole signals that the place of setting receives abandon.
In present invention described above embodiment, interfered cell is distinguished in interference coordination, i.e. the work of strong jamming adjacent area is main It is completed by the side UE, in a preferred embodiment, base station can first pass through dedicated message in advance or other notice signalings will Above-mentioned thresholding Thag and Thic is sent to UE, carries out interference coordination for UE.Concrete mode by system broadcast message, and/ Or RRC dedicated signaling or MAC (Medium Access Control media access control) control signaling or PDCCH (Physical Downlink Control Channel control signaling).
Other embodiments according to the present invention, distinguish in interference coordination interfered cell work can also mainly by base station side Lai It completes.
Fig. 2 is the flow chart of the interference control method 200 of another embodiment of the invention, in such an embodiment, first Interfered cell is identified by base station side, then UE is notified to carry out interference coordination.As shown in Fig. 2, interference control method 200 includes:
210: base station determines interfered cell, and obtains the PCI and antenna port number of interfered cell.
According to embodiments of the present invention, base station can determine interfered cell using various ways.A kind of determining interfered cell Mode are as follows: base station receive UE send measurement report, wherein the measurement report includes RSRP value and the neighbour of serving cell The RSRP value in area;At least one adjacent area that base station determines that RSRP value is greater than the RSRP value of the serving cell is interfered cell.Such as Upper described, base station can also determine interfered cell by RSRQ value.Similar to above-described embodiment, can also be sent by UE Serving cell and adjacent area RSRQ value in measurement report determine interfered cell.
Another kind determine interfered cell mode are as follows: base station by operation management maintainance entity (Operation, Administration and Maintenance, abbreviation OAM) configuration serving cell and other adjacent areas infringement and it is aggrieved Relationship (being victim cell by the strongly disturbing cell of downlink, interfering the cell of other cells is infringement cell) determines at least one Infringement adjacent area is interfered cell.
Another kind determines the mode of interfered cell are as follows: base station passes through the load instruction (Load Indication) received The related narrow emission power (Relative Narrowband TX Power, abbreviation RNTP) of acquisition is more than that thresholding knows adjacent area There is downlink interference to the UE of this serving cell, so that it is determined that interfered cell.
220: to UE send interference control message, wherein it is described interference control message include the interfered cell PCI and Antenna port number, PCI and the antenna port number so as to the UE according to the interfered cell, obtains the interfered cell The position CRS carries out interference control according to the CRS location information, as subtracted in the signal of the CRS position acquisition from institute Interfered cell received signal is stated, alternatively, being discarded in the signal of the CRS position acquisition.
This embodiment according to the present invention determines interfered cell by RSRP/RSRQ value or RNTP value in step 210 When, base station can be by RSRP/RSRQ the RNTP value of adjacent area according to being just ranked up, so that it is determined that one or more is dry Disturb cell.It is identical with the interference control method 100 of above-described embodiment, base station can choose in tested adjacent area RSRP/RSRQ or The person RNTP value amount big compared with RSRP/RSRQ the RNTP value of serving cell equals or exceeds thresholding Thag's (for example, 6dB) Adjacent area is as interfered cell.
After base station identifies interfered cell, then interfered cell can be notified into UE in a step 220, so as to UE progress Interference coordination.Specific interference coordination mechanism is similar to the step 140 in above-mentioned interference control method 100, i.e., when UE is received When data or signaling on the radio resource of the position CRS of interfered cell, UE will implement interference coordination.For example, UE is by the CRS The signal resolution from the interfered cell that the place of setting receives comes out, and whole letters that it is received from the position CRS It is eliminated in number (including the signal from the signal of serving cell and all adjacent areas), or the interference in interfered cell is non- When Chang Qianglie, UE can be abandoned the whole signals received at the position CRS.
In the present embodiment, if determining interfered cell by RSRP/RSRQ value, from the point of view of the side UE, UE is mainly complete At work are as follows:
UE sends measurement report to base station, wherein the measurement report includes RSRP/RSRQ value and the neighbour of serving cell The RSRP/RSRQ value in area, so that the base station determines that RSRP/RSRQ value is greater than the RSRP/RSRQ value of the serving cell extremely A few adjacent area is interfered cell, and the base station is made to obtain the PCI and antenna port number of the interfered cell;
UE receives the interference control message that the base station is sent, wherein the interference control message includes the interfered cell PCI and antenna port number;
PCI and the antenna port number of the UE according to the interfered cell, obtain the position CRS of the interfered cell;
UE carries out interference control according to the CRS location information, such as subtracted in the signal of the CRS position acquisition from The interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
Other embodiments according to the present invention, interference coordination can be by base stations and UE cooperative achievement.
Fig. 3 is the flow chart of another exemplary interference control method 300 according to the present invention, in such an embodiment, first Interfered cell is first determined by the side UE, then base station side obtains the PCI and antenna port number of interfered cell, is then done by the side UE Disturb coordination.As shown in figure 3, interference control method 300 includes:
310: executing nearby region measurement, the signal that signal transmission intensity is greater than serving cell in tested adjacent area is selected to send intensity At least one adjacent area as interfered cell;
320: request message is sent to base station, for obtaining the antenna port number of the interfered cell, wherein the request Message carries the PCI of the interfered cell;
330: the response message that the interfered cell that base station is sent is directed to the request message is received, wherein the response message Carry the PCI of the interfered cell and the antenna port number of the interfered cell;
340: according to the antenna port number of the PCI of the interfered cell and the interfered cell, obtaining the interfered cell The position CRS;
350: according to the CRS location information, carrying out interference control, such as subtracted in the signal of the CRS position acquisition From the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
Identical as embodiment illustrated in fig. 1, the signal, which sends intensity, can use RSRP RSRQ value to indicate.
Identical as embodiment described in Fig. 1, the embodiment of the present invention according to Fig.3, UE can be to the wireless of serving cell Signal measures, and thus monitors the quality of the radio resource signal of serving cell.For example, UE can by CQI measurement come RSRQ value can be obtained by RRM measurement by obtaining SINR value or UE.UE can be by SINR value or RSRQ value and serving BS The thresholding Thic for being sent to UE is compared.If SINR or RSRQ is lower than thresholding Thic, then it represents that UE is by adjacent small The interference in area causes signal quality to be deteriorated, and needs to implement to interfere control.If SINR or RSRQ is higher than thresholding Thic, table Show that the interference for the neighboring community that UE is subject to is not serious, can be controlled without interference.
According to embodiments of the present invention, when executing nearby region measurement in the step 310, it can choose RSRP/ in tested adjacent area The adjacent area that amount RSRQ big compared with the RSRP/RSRQ of serving cell equals or exceeds thresholding Thag (for example, 6dB) is small as interfering Area.Here interfered cell is indicated to the stronger adjacent area of UE signal interference in serving cell.The quantity of interfered cell can be selected Select one or more.For example, being sorted according to the RSRP/RSRQ of adjacent area height, select RSRP/RSRQ than serving cell RSRP/RSRQ big amount is more than several adjacent areas of Thag as interfered cell.
Unlike embodiment illustrated in fig. 1, embodiment according to Fig.3, in step 320, UE is according to the interference The PCI of cell sends request message to base station, to obtain the antenna port number of the interfered cell.Then in a step 330, UE The response message for the request message that base station is sent is received, the antenna port number of the interfered cell is sent to UE. After obtaining the position CRS of interfered cell, UE can be in step 340 according to the PCI and antenna of the interfered cell Port number obtains the position CRS of the interfered cell.Then it is done in step 350 to from interfered cell received signal Disturb exclusion processing.
According to embodiments of the present invention, in step 350, when on the radio resource of the position CRS that UE receives interfered cell Data or signaling when, UE will implement interference coordination.For example, UE will be received at the position CRS from the interfered cell Signal resolution come out, and it is received from the position CRS whole signals (including from serving cell signal and The signal of all adjacent areas) in eliminate, or interfered cell interference strongly when, UE can be by the CRS Whole signals that the place of setting receives abandon.
In the embodiment of the present invention shown in Fig. 3, interfered cell is distinguished in interference coordination, i.e., the work of strong jamming adjacent area is by UE Side and base station side collaboration are to complete, and in a preferred embodiment, base station can first pass through dedicated message in advance or other are logical Know that above-mentioned thresholding Thag and Thic are sent to UE by signaling, carries out interference coordination for UE.Concrete mode passes through system broadcasts Message and/or RRC dedicated signaling or MAC (Medium Access Control media access control) control signaling, or PDCCH (Physical Downlink Control Channel control signaling).
Interference of the UE by the signal from adjacent area, the mainly position CRS due to the position CRS of serving cell and adjacent area Caused by clashing.There are channel state information reference signaling (Channel Status Information Reference Signaling, abbreviation CSI-RS) in the case where, the CSI-RS configuration information of serving cell and the CSI- of adjacent area RS configuration information, which clashes, also will generate interference to the UE in serving cell.Therefore, another embodiment according to the present invention, can To consider to be coordinated between the base station eNB 2 in the base station eNB 1 in serving cell and adjacent area, the CRS/ of eNB1 and eNB2 are avoided CSI-RS is clashed, and thus weakens the interference even being eliminated to the UE in serving cell.
Fig. 4 is the flow chart of the interference control method 400 of another embodiment of the invention.As described in Figure 4, controlling party is interfered Method 400 includes:
410: first base station eNB1, which sends X2 to the second base station eNB 2, establishes request message, disappears wherein the X2 establishes request The PCI and antenna port number of the serving cell of first base station eNB1 are carried in breath, and/or, carry the CSI- of the first base station RS information,
So that PCI and antenna port of second base station eNB 2 according to the serving cell of the first base station eNB1 Number obtains the position CRS of the first base station, and judges the position CRS that whether there is serving cell under second base station eNB 2 Conflict with the position CRS of the first base station eNB1, and/or is judged whether according to the CSI-RS of the first base station eNB1 described The CSI-RS of second base station eNB 2 conflicts with the CSI-RS of the first base station eNB1;
420: when the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS, the first base station ENB1 changes the PCI of its serving cell and/or changes the CSI-RS of the first base station eNB1.
The PCI that eNB1 changes its serving cell can make its position CRS change, thus no longer with the CRS of eNB2 Position clashes.
According to embodiments of the present invention, eNB1 change its PCI and/or change its CSI-RS configuration information can by eNB1 with ENB2 holds consultation to realize.Specific implementation process are as follows:
First base station eNB1 receives the X2 that second base station eNB 2 is sent and establishes response message, rings wherein the X2 is established Carrying in message is answered to request the first base station eNB1 to change the PCI of its serving cell and/or change the first base station The solicited message of CSI-RS;
First base station eNB1 is according to the PCI for changing serving cell and/or changes the CSI- of the first base station eNB1 The solicited message of RS changes the PCI of the serving cell of first base station eNB1 and/or changes the CSI-RS of the first base station;
First base station eNB1 sends configuration update message to the second base station eNB 2, wherein configuration update message carrying changes The CSI-RS of the PCI of the serving cell of the first base station eNB1 after change and/or the first base station eNB2 after change.
Another embodiment according to the present invention, eNB1 according to the request of eNB2, can also deviate eNB1 CRS and/or The position of CSI-RS.Specific implementation process are as follows:
First base station eNB1 receives the time migration message that the second base station eNB 2 is sent, wherein the time migration message is taken Band time symbol offset value or sub-frame offset value;
First base station eNB1 deviates described the according to the time symbol offset value in the time symbol offset message The CSI-RS of the CRS and/or the offset first base station eNB1 of one base station.
Another embodiment, the PCI and/or CSI-RS that eNB2 also can change the serving cell of oneself match according to the present invention It sets, collides to avoid CRS and/or CSI-RS with eNB1.From coming from the side eNB2, the groundwork of eNB2 completion are as follows:
Second base station eNB 2 receives first base station eNB1 transmission X2 and establishes request message, wherein the X2 establishes request message The PCI and antenna port number of the middle serving cell for carrying first base station eNB1, and/or, carry the first base station eNB1's CSI-RS information;
Second base station eNB 2 obtains the first base according to the PCI and antenna port number of the serving cell of first base station eNB1 It stands the position CRS of eNB1, and judges under the second base station eNB 2 with the presence or absence of the position CRS of serving cell and first base station eNB1 The position CRS conflicts, and/or judges whether the CSI-RS of second base station eNB 2 according to the CSI-RS of the first base station eNB1 Conflict with the CSI-RS of the first base station eNB1;
When the judging result is to conflict there are the conflict of the position CRS and/or the CSI-RS, second base station eNB 2 Change the PCI of its serving cell and/or changes the CSI-RS of second base station.
Another embodiment according to the present invention, when conflicting there are the conflict of the position CRS and/or the position CSI-RS, the Two base station eNB2 oneself can also deviate CRS and/or the CSI-RS configuration of its serving cell, and the offset is time symbol offset Or sub-frame offset, and notify first base station eNB1, to avoid CRS/CSI-RS conflict.
According to embodiments of the present invention, interference of the neighboring area signal to the user equipment in serving cell is reduced, use is improved Communication quality of the family equipment in serving cell;Also making some Hot Spot preferably is that macrocell shares traffic load.
According to embodiments of the present invention, it is also proposed that for realize the embodiment of the present invention interference control method user equipment The base station and.It should be noted that the user that the feature in the method for the embodiment of the present invention is equally applicable to the embodiment of the present invention sets Standby and base station.
Fig. 5 is the schematic configuration diagram of the user equipment 500 of the embodiment of the present invention.As shown in figure 5, user equipment 500 includes:
Measuring unit 510 selects signal in tested adjacent area to send intensity greater than serving cell for executing nearby region measurement Signal sends at least one adjacent area of intensity as interfered cell;
Resolution unit 520 obtains the interfered cell for parsing the Physical Broadcast Channel PBCH of the interfered cell Antenna port number;
CRS position acquisition unit 530, for according to the interfered cell Physical Cell Identifier PCI and the antenna end Mouth number, obtains the position cell reference signaling CRS of the interfered cell;
Control unit 540 is interfered to carry out interference control according to the CRS location information, such as in the position CRS It is subtracted in the signal of acquisition from the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, the signal transmission intensity, which can be, utilizes RSRP RSRQ value to indicate.
According to embodiments of the present invention, before the execution nearby region measurement, the measuring unit 510 is also used to execute service It is cell signal quality measured, indicate the measured value of serving cell signal quality to obtain, measured value drop to the first thresholding with When lower, the execution nearby region measurement is carried out.
According to embodiments of the present invention, the serving cell signal quality measurement that the measuring unit 510 executes includes channel matter Figureofmerit CQI measurement, the measured value are signal and interference-to-noise ratio SINR value, or
The execution serving cell signal quality measurement that the measuring unit 510 executes includes wireless resource management RRM Measurement, the measured value are Reference Signal Received Quality RSRQ value.
According to embodiments of the present invention, in the execution nearby region measurement, the measuring unit 510 is selected in tested adjacent area Amount RSRP bigger than the RSRP of serving cell is the second thresholding, i.e. at least one adjacent area of Thag (for example, 6dB) is as described dry Disturb cell.
According to embodiments of the present invention, in the execution nearby region measurement, the measuring unit 510 is selected in tested adjacent area Amount RSRQ bigger than the RSRQ of serving cell is the second thresholding, i.e. at least one adjacent area of Thag (for example, 6dB) is as described dry Disturb cell.
According to embodiments of the present invention, as shown in fig. 6, the user equipment 500 further includes receiving unit 550, for receiving The interference control message that base station is sent, wherein including first thresholding and second thresholding in the interference control message.
Fig. 7 is the schematic configuration diagram of the base station 700 of the embodiment of the present invention.As shown in fig. 7, base station 700 includes:
Determination unit 710, for determining interfered cell, and obtain interfered cell PCI and the antenna port number;
Transmission unit 730, for sending interference control message to UE, wherein the interference control message includes the interference The PCI and antenna port number of cell, PCI and the antenna port number so as to the UE according to the interfered cell obtain institute The position CRS for stating interfered cell carries out interference control, such as letter in the CRS position acquisition according to the CRS location information It is subtracted in number from the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, the determination unit 710 is used to receive the measurement report of user equipment (UE) transmission, wherein The measurement report includes the RSRP value of serving cell and the RSRP value of adjacent area, and for determining that RSRP value is greater than the clothes At least one adjacent area of the RSRP value for cell of being engaged in is interfered cell, and obtains the PCI and antenna port number of the interfered cell.
According to embodiments of the present invention, the determination unit 710 is used to receive the measurement report of user equipment (UE) transmission, wherein The measurement report includes the RSRQ value of serving cell and the RSRQ value of adjacent area, and for determining that RSRQ value is greater than the clothes At least one adjacent area of the RSRQ value for cell of being engaged in is interfered cell, and obtains the PCI and antenna port number of the interfered cell.
According to embodiments of the present invention, the determination unit 710 is used for through the OAM serving cell configured and other adjacent areas Infringement and aggrieved relationship determine that at least one infringement adjacent area is interfered cell.
According to embodiments of the present invention, the RNTP that the determination unit 710 is used to obtain by the load instruction received is super It crosses thresholding and knows that there is downlink interference in adjacent area to the UE of this serving cell, so that it is determined that interfered cell.
According to embodiments of the present invention, the determination unit 710 is for determining RSRP value of the RSRP value than the serving cell Big amount is the second thresholding, i.e. the adjacent area of Thag (for example, 6dB) is the interfered cell.
According to embodiments of the present invention, the determination unit 710 can be used for determining RSRQ value than the serving cell The big amount of RSRQ value is the second thresholding, i.e. the adjacent area of Thag (for example, 6dB) is the interfered cell.
Fig. 8 is the schematic configuration diagram of another user equipment 800 according to an embodiment of the present invention.As shown in figure 8, user sets Standby 800 include:
Transmission unit 810, for sending measurement report to base station, wherein the measurement report includes the RSRP of serving cell Value and the RSRP value of adjacent area, so that the base station determines that RSRP value is greater than at least one neighbour of the RSRP value of the serving cell Area is interfered cell, and the base station is made to obtain the PCI and antenna port number of the interfered cell;
Receiving unit 820, the interference control message sent for receiving the base station, wherein the interference control message packet Include the PCI and antenna port number of the interfered cell;
CRS position acquisition unit 830, for according to the interfered cell PCI and the antenna port number, described in acquisition The position CRS of interfered cell;
Control unit 840 is interfered to carry out interference control according to the CRS location information, such as in the position CRS It is subtracted in the signal of acquisition from the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
It according to embodiments of the present invention, also may include serving cell in the measurement report that transmission unit 810 is sent to base station RSRQ value and adjacent area RSRQ value so that the base station determine RSRQ value be greater than the serving cell RSRQ value at least One adjacent area is interfered cell, and the base station is made to obtain the PCI and antenna port number of the interfered cell.
According to embodiments of the present invention, the transmission unit 810 is used to send measurement report to the base station, so that the base It stands and determines that the RSRP value amount bigger than the RSRP value of the serving cell is the second thresholding, is i.e. the adjacent area of Thag (for example, 6dB) is institute State interfered cell.
According to embodiments of the present invention, the transmission unit 810 is used to send measurement report to the base station, so that the base It stands and determines that the RSRQ value amount bigger than the RSRQ value of the serving cell is the second thresholding, is i.e. the adjacent area of Thag (for example, 6dB) is institute State interfered cell.
Fig. 9 is the schematic configuration diagram of another user equipment according to an embodiment of the present invention.As shown in figure 9, user equipment 900 include:
Measuring unit 910 selects signal in tested adjacent area to send intensity greater than serving cell for executing nearby region measurement Signal sends at least one adjacent area of intensity as interfered cell;
Transmission unit 920, for sending request message to base station, to obtain the antenna port number of the interfered cell, Described in request message carry the PCI of the interfered cell;
Receiving unit 930, the response message for the request message sent for receiving the base station, wherein described Response message carries the PCI of the interfered cell and the antenna port number of the interfered cell;
CRS position acquisition unit 940, for according to the PCI of the interfered cell and the antenna port of the interfered cell Number, obtains the position cell reference signaling CRS of the interfered cell;
Control unit 950 is interfered, for interference control being carried out, e.g., in the position CRS according to the CRS location information It is subtracted in the signal of acquisition from the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
According to embodiments of the present invention, signal receiving strength can be indicated with RSRP or RSRQ.
It is according to embodiments of the present invention, described before the execution nearby region measurement similar to user equipment 500 shown in Fig. 5 Measuring unit 910 is also used to execute serving cell signal quality measurement, to obtain the measured value for indicating serving cell signal quality, When measured value drops to the first thresholding or less, the execution nearby region measurement is carried out.
Similar to user equipment 500 shown in Fig. 5, according to embodiments of the present invention, the service that the measuring unit 910 executes is small Signal quality measured area includes that channel quality indicator CQI is measured, and the measured value is signal and interference-to-noise ratio SINR value, or
The execution serving cell signal quality measurement that the measuring unit executes includes that wireless resource management RRM is surveyed Amount, the measured value are Reference Signal Received Quality RSRQ value.
Similar to user equipment 500 shown in Fig. 5, according to embodiments of the present invention, in the execution nearby region measurement, the survey Amount unit 910 selects the amount that RSRP is bigger than the RSRP of serving cell in tested adjacent area at least one adjacent area conduct of the second thresholding The interfered cell.
Similar to user equipment 500 shown in Fig. 5, according to embodiments of the present invention, in the execution nearby region measurement, the survey Amount unit 910 selects the amount that RSRQ is bigger than the RSRQ of serving cell in tested adjacent area at least one adjacent area conduct of the second thresholding The interfered cell.
According to embodiments of the present invention, the receiving unit 930 is also used to receive the interference control message of base station transmission, wherein It include first thresholding and second thresholding in the interference control message.
Figure 10 is the schematic configuration diagram of another base station 1000 according to an embodiment of the present invention.Base station 1000 can be used as reality The eNB1 in method in existing the above embodiment of the present invention.As shown in Figure 10, base station 1000 includes:
X2 request unit 1010 establishes request message for sending X2 to the second base station, disappears wherein the X2 establishes request The PCI and antenna port number of the serving cell of the base station 1000 are carried in breath, and/or, carry the CSI- of the base station 1000 RS information,
So that second base station obtains institute according to the PCI and antenna port number of the serving cell of the base station 1000 The position CRS of base station 1000 is stated, and is judged under second base station with the presence or absence of the position CRS of serving cell and the base station 800 position CRS conflicts, and/or judges whether CSI-RS and the institute of second base station according to the CSI-RS of the base station 800 State the CSI-RS conflict of base station 1000;
Control unit 1020, for being that there are the conflict of the position CRS and/or CSI-RS conflicts in the judging result When, change the PCI of the serving cell of the base station 1000 and/or changes the CSI-RS of the base station.
According to embodiments of the present invention, as shown in figure 11, the base station 1000 can also include:
X2 response unit 1030 establishes response message for receiving the X2 that second base station is sent, wherein the X2 is built The PCI for requesting the base station 800 to change its serving cell is carried in vertical response message and/or changes the CSI- of the base station 1000 The solicited message of RS,
Described control unit 1020 is according to the PCI for the changing serving cell and/or CSI- of the change base station 1000 The solicited message of RS changes the PCI of the serving cell of the base station 1000 and/or changes the CSI-RS of the base station 800;
Transmission unit 1040, for sending configuration update message to second base station, wherein the configuration update message Carry the PCI of the serving cell of the base station 800 after the changing and/or CSI-RS of the base station 1000 after change.
Another embodiment according to the present invention, as shown in figure 12, unlike embodiment illustrated in fig. 11, the base station 1000 may include:
Offset units 1050, the time symbol offset message sent for receiving second base station, wherein the time accords with Number offset message carries time symbol offset value;
Described control unit 1020 deviates institute according to the time symbol offset value in the time symbol offset message State the PCI of the serving cell of the base station 1000 and/or CSI-RS of the offset base station 800.
Figure 13 is the schematic configuration diagram of another base station 1300 according to an embodiment of the present invention.Base station 1300 can be used as reality The eNB2 in method in existing the above embodiment of the present invention.As shown in figure 11, base station 1300 includes:
Receiving unit 1310 establishes request message for receiving first base station transmission X2, disappears wherein the X2 establishes request The PCI and antenna port number of the serving cell of first base station are carried in breath, and/or, carry the CSI-RS letter of the first base station Breath;
Conflict determination unit 1320, for the PCI and antenna port number according to the serving cell of the first base station Obtain the position CRS of the first base station, and judge under the base station 1300 with the presence or absence of serving cell the position CRS with it is described The position CRS of first base station conflicts, and/or judges whether the CSI- of the base station 1300 according to the CSI-RS of the first base station RS conflicts with the CSI-RS of the first base station;
Control unit 1330, for being that there are the conflict of the position CRS and/or CSI-RS conflicts in the judging result When, change the PCI of the serving cell of the base station 1300 and/or changes the CSI-RS of the base station.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. a kind of interference control method, which is characterized in that
Determine that at least one adjacent area is dry by the infringement and aggrieved relationship of the minizone of operation management maintainance entity OAM configuration Disturb cell;
Obtain the PCI and antenna port number of interfered cell;
Interference control message is sent to UE, wherein the interference control message includes the PCI and antenna port of the interfered cell Number, the interference control message obtain institute for notifying PCI and the antenna port number of the UE according to the interfered cell The position CRS of interfered cell is stated, and according to the CRS location information, carries out interference control.
2. the method as described in claim 1, which is characterized in that strongly disturbing small by downlink in infringement and aggrieved relationship Area is victim cell, and interfering the cell of other cells is infringement cell.
3. a kind of interference control method characterized by comprising
The interference control message that base station is sent is received, wherein the interference control message includes the PCI and antenna end of interfered cell Mouth number;
According to the PCI of the interfered cell and the antenna port number, the position CRS of the interfered cell is obtained;
According to the CRS location information, interference control is carried out.
4. method as claimed in claim 3, which is characterized in that it is described according to the CRS location information, carry out interference control packet It includes: is subtracted from the signal of acquisition from the interfered cell received signal, alternatively, being discarded in the letter of the CRS position acquisition Number.
5. a kind of base station, which is characterized in that the base station includes:
Determination unit, for determining that the infringement by the OAM serving cell configured and other adjacent areas determines extremely with aggrieved relationship A few infringement adjacent area is interfered cell, and obtains the PCI and antenna port number of interfered cell;
Transmission unit, for sending interference control message to UE, wherein the interference control message includes the interfered cell PCI and antenna port number, the interference control message is for notifying the UE according to the PCI and the antenna of the interfered cell Port number obtains the position CRS of the interfered cell, and according to the CRS location information, carries out interference control.
6. base station as claimed in claim 5, which is characterized in that strongly disturbing small by downlink in infringement and aggrieved relationship Area is victim cell, and interfering the cell of other cells is infringement cell.
7. a kind of user equipment characterized by comprising
Receiving unit, for receiving the interference control message of base station transmission, wherein the interference control message includes interfered cell PCI and antenna port number;
CRS position acquisition unit, for according to the interfered cell PCI and the antenna port number, obtain it is described interference it is small The position CRS in area;
Control unit is interfered, for carrying out interference control according to the CRS location information.
8. user equipment as claimed in claim 7, which is characterized in that the interference control unit, for the signal from acquisition In subtract from the interfered cell received signal, alternatively, being discarded in the signal of the CRS position acquisition.
9. a kind of computer readable storage medium is stored with instruction, described instruction can be executed by computer, so that computer executes Method as described in claim 1-4 any one.
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