CN102421183A - Method, device and system for realizing interference control and interference avoidance - Google Patents
Method, device and system for realizing interference control and interference avoidance Download PDFInfo
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Abstract
The invention relates to the field of communication and discloses a method, a device and a system for realizing interference control and interference avoidance, and the method, device and system disclosed by the invention can be used for effectively lowering the strong interference on an MUE (MeNB user) in a coverage range caused by a micro base station in a network with different hierarchies. The method comprises: the micro base station and the MeNB obtain same subframe attribute information used for representing the setting modes of a muting subframe and/or protected subframe; the micro base station can effectively dispatch HUEs (Home NodeB users) within a scope of jurisdiction according to the obtained subframe attribute information, and controls the downlink transmission of the HUEs to realize interference control; and the MeNB can effectively dispatch MUE within a scope of jurisdiction according to the obtained subframe attribute information, indicates the MUE to measure and report parameters on the proper measurement position and controls the downlink transmission of the MUE so as to realize interference avoidance, therefore, strong interference on the MUE caused by the micro base station can be effectively avoided, and the throughput of the layered networking is improved.
Description
Technical field
The present invention relates to the communications field, particularly realize method, the Apparatus and system that Interference Control and interference are hidden.
Background technology
Along with data rate and business load require growing; The mode that Traditional use macro base station individual layer covers provides access can not satisfy user demand; Therefore, the mode that at present usually adopts layering to cover provides access, promptly in hot zones or some lower powered little base stations of indoor deployment (as; HeNB, Pico, Femto, Relay etc.), cooperate macro base station to accomplish and insert.So-called little base station is a kind of base station equipment that is applied under family's indoor environment, working environment or the little overlay environment of other focus, and more high data rate, more professional can be provided.
For the ease of statement, following abbreviation of definition or abbreviation: macro base station, MeNB; Home eNodeB, HeNB, grand its station user, MUE; By grand its station user that Home eNodeB disturbs, victim MUE; The Home eNodeB user, HUE; Subframe multicast Single frequency network (MBSFN) subframe) or closely close (almost blank) subframe: close (muting) subframe.
In LTE Rel 8 and Rel 9 agreements, defined the method that the descending Interference Control in the network generally adopts interference coordination, promptly the coordination through time-domain resource, frequency domain resource and power realizes the descending Interference Control of network between the base station.Further; Also the downstream data channel interference coordination has been carried out certain support in Rel 8 and Rel 9 agreements; Promptly defined between the base station RNTP (Relative Narrowband TX Power, Relative Narrowband TX Power) alternately, and taked interference coordination to avoid interference based on RNTP.
In LTE Rel 10 agreements and later protocol version and since introduced lower powered little base station (as, HeNB, Pico, Femto and Relay) formed the layering networking, therefore need rethink the problem of Interference Control.Adopt HeNB to carry out the layering identical networking, HeNB towards the user be CSG (CloseSubscriber Group, encapsulation registration group) user; So, just might receive very strong interference, make these MUE become victim MUE near the MUE of HeNB; Thereby cause network throughput to descend, if serious interference, the control channel performance of these MUE will can not get guaranteeing; Just might produce Radio Link Failure (Radio Link Failure), and then influence the overall performance of system.
For example, consult shown in Figure 1ly, MUE belongs to MeNB, is non-CSG user; HUE belongs to HeNB, is CSG user, therefore can authentication insert HeNB.When MUE is positioned at the coverage of HeNB, because MUE is not the CSG user who authorizes, even the signal strength signal intensity of HeNB is higher than the signal strength signal intensity of MeNB far away, MUE also can't switch to HeNB, and will receive the strong jamming from HeNB; Like this, just might cause the non-constant of channel condition of MUE, be easy to generate call drop, or even can't work, on the other hand, reliable X2 interface is not set between HeNB and the MeNB.The downlink interference collaboration method of existing LTE agreement support is not enough to solve the Interference Control problem under this scene, therefore, need design corresponding interference control method again.
To the problems referred to above, at present, there are two kinds to the interference control method of layering Networking Design: time domain muting method and HeNB circule power control method.
So-called time domain muting method; Promptly be to make HeNB through setting the muting subframe; Do not send information or only send necessary information in these muting subframes, thereby on time domain, alleviate interference for MeNB, make MeNB on these muting subframes, dispatch and receive the strongly disturbing MUE of HeNB.The muting subframe generally has two kinds: MBSFN subframe and almost blank subframe; The configuration of these subframes can be carried out semi-static configuration through the S1 interface; Wherein, the configuration mode of MBSFN subframe is as shown in Figure 2 for example, and the configuration mode of almost blank subframe is as shown in Figure 3 for example.
Yet, adopt time domain muting method, can there be following problem:
At first; HeNB still need send CRS signal (Cell specificreference on the muting subframe; Cell reference signals); Be present in preceding two OFDM symbols for MBSFN subframe CRS, for almost blank subframe, CRS arranges according to the mode of formulating in set Rel 8 agreements and Rel 9 agreements.
Secondly,, still need send information on control channel and/or the data channel in some special subframe, for example, Physical Broadcast Channel (PBCH), synchronizing channel (SCH), promptly the 0th, 4 of the FDD mode the, the 0th, 1,5,6 subframes of 5,9 subframes and TDD mode.
Once more, when adopting time domain muting scheme, MUE and HUE also do not know which kind of mode when HeNB adopt dispose the muting subframe, therefore can't carry out Radio Link measurement adaptably, have influenced the accuracy of measuring.
It is thus clear that for time domain muting method, present protocols limit is many, a lot of information still must be sent, and can not close fully, even if therefore on the muting subframe, disturb still residual and to being influenced very big by interference user; On the other hand, can't be known the configuration mode of muting subframe, therefore, can't carry out accurately Radio Link and measure, thereby influence the muting sub-frame configuration of network side by interference user.
And so-called HeNB circule power control method promptly is to make HeNB according to preset power control principle, reduces the transmitting power to the HUE of its service, has so also just reduced the interference power to MUE.At present common HeNB power control scheme can be divided into two types, and one type is HeNB according to power control is carried out in the measurement of MeNB or the measurement of HUE feedback, another kind of be HeNB need can perception victim MUE existence, carry out preset power control principle on this basis; The difference of these two types of schemes is that second type of scheme needs HeNB can know the existence of victim MUE.
Yet, adopt the HeNB circule power control method, can there be following problem:
No matter whether HeNB has the ability that perception victim MUE exists; All need promptly on all time periods, reduce the transmitting power of self, like this in free enterprising capable power control; The throughput of HUE just can not get good assurance, has reduced the service performance of HeNB to HUE.
The applicant finds, time domain muting method is combined with the HeNB circule power control method, both can effectively control the strong jamming of HeNB to MUE, makes it be able to operate as normal, can guarantee the throughput of HUE again.Yet, how to adopt the scheme of this combination to carry out Interference Control, also there is not relevant programme to propose at present.In view of this, need design in the layering networking method that realizes that Interference Control and interference are hidden again.
Summary of the invention
The embodiment of the invention provides and has realized method, the Apparatus and system that Interference Control and interference are hidden, and in order in the hierarchical net, under the prerequisite of the throughput that guarantees little base station user, reduces the strong jamming of little base station to the macro base station user in the coverage.
The concrete technical scheme that the embodiment of the invention provides is following:
A kind of method that realizes Interference Control is characterized in that, comprising:
Little base station obtains preset sub-frame property information, comprises the set of muting subframe in the said sub-frame property information at least, and/or the set of protected subframe;
Said little base station generates corresponding little base station subframe configuration information based on the sub-frame property information that obtains, and said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
The HUE in the local compass of competency is mail to said little base station subframe configuration information in said little base station, and carries out transfer of data based on said little base station subframe configuration information and HUE, to realize Interference Control.
A kind ofly realize disturbing the method for hiding, comprising:
Macro base station obtains preset sub-frame property information, comprises the muting subframe set of adopting little base station in the said sub-frame property information at least, and/or the set of protected subframe;
Said macro base station generates corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, and said macro base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle;
Said macro base station mails to the MUE in the local compass of competency with said macro base station subframe configuration information, and indicates said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
A kind of device of realizing Interference Control comprises:
Acquiring unit is used to obtain preset sub-frame property information, comprises the set of muting subframe in the said sub-frame property information at least, and/or the set of protected subframe;
Processing unit; Be used for based on the sub-frame property information that obtains; Generate little base station, corresponding little base station subframe configuration information, said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
Communication unit is used for said little base station subframe configuration information is mail to the HUE in the local compass of competency, and carries out transfer of data based on said little base station subframe configuration information and HUE, to realize Interference Control.
A kind ofly realize disturbing the device of hiding, comprising:
Acquiring unit is used to obtain preset sub-frame property information, comprises the muting subframe set of adopting little base station in the said sub-frame property information at least, and/or the set of protected subframe;
Processing unit is used for generating corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, and said macro base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle;
Communication unit is used for said macro base station subframe configuration information is mail to the MUE in the local compass of competency, and indicates said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
A kind of system that realizes that Interference Control and interference are hidden comprises:
Little base station is used to obtain preset sub-frame property information, comprises the set of muting subframe in the said sub-frame property information at least; And/or protected subframe set; And, generating corresponding little base station subframe configuration information based on the sub-frame property information that obtains, said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least; And/or the position of protected subframe and transmitting power; And said little base station subframe configuration information mail to the HUE in the local compass of competency, and carry out transfer of data based on said little base station subframe configuration information and HUE, with the realization Interference Control;
Macro base station is used to obtain preset sub-frame property information, comprises the muting subframe set of adopting little base station in the said sub-frame property information at least; And/or protected subframe set; And, generating corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, said macro base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter; And the measuring position of every group of measurement parameter and report cycle; And said macro base station subframe configuration information mail to the MUE in the local compass of competency, and indicate said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, hide to realize interference.
In the embodiment of the invention; Make little base station obtain the sub-frame property information that identical being used to characterizes muting subframe and/or protected subframe set-up mode with macro base station; Little base station can effectively be dispatched the HUE in the compass of competency according to the sub-frame property information that obtains, and the downlink transfer of control HUE, to realize Interference Control; And macro base station can be dispatched the MUE in the compass of competency according to the sub-frame property information that obtains effectively; Indication MUE carries out parameter measurement in suitable measuring position and reports, and the downlink transfer of control MUE, hides to realize disturbing.Like this, the strong jamming that just can effectively avoid little base station that MUE is caused, and improved the throughput of layering networking, thus promoted the covering performance and the message transmission rate of layering networking.
Description of drawings
Fig. 1 reaches hierarchical dictyosome system structure figure in the embodiment of the invention under the prior art;
Fig. 2 is a MBSFN sub-frame configuration sketch map under the prior art;
Fig. 3 is an almost blank sub-frame configuration sketch map under the prior art;
Fig. 4 hides sketch map for realizing Interference Control and interference in the embodiment of the invention;
Fig. 5 A and Fig. 5 B are that HeNB realizes the Interference Control flow chart in the embodiment of the invention;
Fig. 6 is little base station subframe configuration information sketch map in the embodiment of the invention;
Fig. 7 hides flow chart for MeNB in the embodiment of the invention realizes disturbing;
Fig. 8 is a macro base station subframe configuration information sketch map in the embodiment of the invention;
Fig. 9 is little base station functions structure chart in the embodiment of the invention;
Figure 10 is a macro base station functional structure chart in the embodiment of the invention.
Embodiment
Following examples are that HeNB is that example describes with little base station.
In the embodiment of the invention,, let HeNB realize effective Interference Control, let MeNB realize effectively disturbing hiding through network interaction sub-frame property information; Further, can notify little base station subframe configuration information and macro base station subframe configuration information respectively to HUE and MUE, make HUE and MUE can effectively measure and monitor with Radio Link through eating dishes without rice or wine.Be specially:
HeNB obtains preset sub-frame property information, comprises the set of muting subframe in this sub-frame property information at least, and/or the set of protected subframe; Then, HeNB generates corresponding little base station subframe configuration information based on the sub-frame property information that obtains, and this little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power; At last, little base station subframe configuration information that HeNB will generate mails to the HUE in the local compass of competency, and carries out transfer of data based on this little base station subframe configuration information and HUE, to realize Interference Control.
Correspondingly, MeNB also obtains preset sub-frame property information, comprises the muting subframe set that HeNB adopts in this sub-frame property information at least, and/or the set of protected subframe; Then, MeNB generates corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, and this macro base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle; At last, MeNB mails to the MUE in the local compass of competency with the macro base station subframe configuration information that generates, and indication MUE carries out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
Sub-frame property information is in transmission through network; Major function is: make MeNB and HeNB have identical reference information; Through this reference information, MeNB and HeNB can dispatch and control its affiliated user's's (being MUE and HUE) downlink transfer effectively, with the interference between avoiding mutually.
The main contents of sub-frame property information comprise:
Close the set of (muting) subframe, be used to indicate HeNB which subframe to need muting, i.e. the position of muting subframe in;
By the set of protection (protected) subframe, be used to indicate HeNB which subframe need consider to reduce power in protection MeNB downlink transfer, the i.e. position of protected subframe.
Consult shown in Figure 4; HeNB makes a strategic decision based on this sub-frame property information after receiving the above-mentioned sub-frame property information of network management system configuration, and more detailed little base station subframe configuration information is set; Comprise according to sub-frame property information, present load and existing HUE reporting information; Confirm the transmitted power of each sub-frame that HUE adopts, further, can also set and notify and measure and/or feedback starting point and cycle and scheduling decision; Then, HeNB is transferred to HUE through eating dishes without rice or wine with little base station subframe configuration information, the position and the transmitted power of each sub-frame of notice HUE; On the other hand; MeNB also can be provided with more detailed macro base station subframe configuration information based on this sub-frame property information after receiving the above-mentioned sub-frame property information of network management system configuration; Comprise according to sub-frame property information and existing MUE reporting information, set and notice measurement and/or feedback starting point and cycle and scheduling decision; Then, MeNB is sent to MUE through eating dishes without rice or wine with macro base station subframe configuration information 2, and notice MUE measures and/or report etc. control information.Further; If be provided with X2 interface between HeNB and the MeNB; Then HeNB little base station subframe configuration information that can self be provided with mail to MeNB, uses when for MeNB the macro base station subframe configuration information being set, thereby makes MUE can realize that more efficiently interference hides.
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
In the embodiment of the invention, the configuration of sub-frame property information can be triggered by network management system, HeNB or the MeNB of network side, and parameter configuration can be static or semi-static.Triggering the principle of sub-frame property information configuration, can be that network management system is provided with according to system performance, for example, broadcast channel and/or control channel place subframe are set at the protected subframe, and/or certain or some subframes is set to the muting subframe.Can also be by HeNB or MeNB based on perception to victimMUE; Through coordinating need to confirm protected subframe and muting subframe; Coordination mode can be accomplished by the X2 interface between the two, perhaps report network management system after, by network management system decision and notice HeNB and MeNB.
After the sub-frame property information configuration finishes, HeNB and MeNB just can be further based on this sub-frame property information setting corresponding little base station subframe configuration information and macro base station subframe configuration information.Consult shown in Fig. 5 A, in the embodiment of the invention, HeNB is based on the preset corresponding little base station of sub-frame property information setting subframe configuration information, and is following with the detailed process of realizing Interference Control:
Step 500:HeNB obtains preset sub-frame property information, and this sub-frame property information comprises the set of muting subframe at least, and/or the set of protected subframe.
When HeNB obtains preset sub-frame property information, can receive the preset sub-frame property information that issues from network management system, also can be directly after this locality obtain through X2 interface or network management system and MeNB coordination, preset sub-frame property information.
In the present embodiment, above-mentioned sub-frame property information can be provided with sub-frame property information through the mode of bit mapping (bitmap), also can sub-frame property information be set through side-play amount (offset) mode.Wherein,
So-called mode through bitmap is provided with sub-frame property information; Promptly be definition information element (IE) subframePara; With each descending sub frame attribute of 2bit information representation, 00 this subframe of indication is normal attribute, and 01 this subframe of indication is by the protection attribute; 10 these subframes of indication are the muting attribute, and 11 reservations are done to expand and used.For example, { 01,00,00,10,01,01,00,00,00,01} representes that the 0th, 4,5,9 subframes are the protected subframe to information, and HeNB can consider to reduce transmitting power on these subframes, with the descending reception of protection MUE; And the 3rd subframe is the muting subframe, and MeNB can be at this subframe scheduling victimMUE; Other subframes are normal attribute, and HeNB carries out descending transmission from self-demand.Its concrete set-up mode is as shown in Figure 6 for example.
And what is called is provided with sub-frame property information through the offset mode, promptly defines information element (IE), with the position of offset indication protected subframe and muting subframe.Its concrete set-up mode is also as shown in Figure 6.
For example:
subframePara{
MutingOffset：{3}；
ProtectOffset：{0，4，5，9}；
}
Step 510:HeNB is based on the sub-frame property information that receives; Generate corresponding little base station subframe configuration information; At least the position and the transmitting power that comprise the muting subframe in this little base station subframe configuration information, and/or the position of protected subframe and transmitting power.
The principle that HeNB generates little base station subframe configuration information is not cause interference to MeNB is descending as far as possible, but also will guarantee the performance of HUE.So when execution in step 510; HeNB need be according to sub-frame property information; And down load of estimating and existing HUE feedback; Confirm the muting subframe of HUE employing and/or the transmitted power of protected subframe, further, can also set HeNB measurement and/or feedback starting point and cycle and scheduling decision.Transmitted power to generate muting subframe and protected subframe simultaneously is an example, consults shown in Fig. 5 B, and the concrete executive mode of step 510 is:
Step 5100: the position of muting subframe is confirmed based on the sub-frame property information of obtaining in little base station, and based on the demodulation threshold of confirming according to the measurement feedback of HUE, calculates the transmitting power of muting subframe.
HeNB only sends CRS and the control information that must send in this muting subframe in the muting subframe; Because CRS and control information do not have the QoS demand; Therefore HeNB can be according to the measurement feedback of the HUE that has received; The transmitting power of demodulation threshold is satisfied in setting, for example, adopts formula one that the transmitting power of muting subframe is set.
Wherein, Pmax is the specified maximum transmission power of HeNB, and Pmin is the specified minimum emissive power of HeNB, P
HUE_receivedThe interference plus noise power that expression HUE measures; X is the target Signal to Interference plus Noise Ratio (being demodulation threshold) of HUE; PL is the path loss that Reference Signal Received Power (RSRP) that HeNB reports according to HUE calculates; If there are a plurality of HUE to exist, then use minimum RSRP to guarantee the performance of corresponding HUE, median is for getting median operation.The implication of above-mentioned each parameter in following formula is all identical, will repeat no more.
Step 5101: the position of protected subframe is confirmed in little base station based on the sub-frame property information of obtaining.
After the position of muting subframe and/or protected subframe was confirmed, the position of other normal subframe had also just been confirmed.
Step 5102:HeNB estimates the down load in the following fixed time section (T_p); And between protected subframe and normal subframe balanced down load; Wherein, down load comprise downstream data traffic and/or control signaling etc. can be between subframe the information of flexible allocation.
For example, HeNB can adopt formula two to realize the equilibrium of down load:
Wherein, M representes the protected number of sub-frames, and N representes the normal number of sub-frames.
The average load of expression protected subframe,
The average load of expression normal subframe, R
LoadBe preset proportional value (can join).
Step 5103: confirm that protected subframe and normal subframe are behind the down load that carries; HeNB calculates the transmitting power of protected subframe based on the down load of demodulation threshold of confirming according to Home eNodeB user's measurement feedback and the carrying of protected subframe.
For example, HeNB can adopt formula three to confirm the transmitting power of protected subframe:
Snr (L) is the needed signal to noise ratio of bearing downlink load, can be confirmed by link prediction data or other empirical data matches.
Adopting above-mentioned steps 5100-step 5103 to calculate in the process of transmitting power of muting subframe and/or protected subframe, HeNB can carry out capability correction further.For the important system information or the scheduling of control information; HeNB will not be must be at the system information of protected subframe scheduling or control signaling scheduling when specifying the normal subframe; Can proofread and correct the transmitting power of specifying the normal subframe again; To specify the normal subframe is that subframe_n is an example, and at this moment, HeNB can adopt formula four to come to proofread and correct again the transmitting power of subframe_n:
Ptx_subframe_n＝median(Pmax，Pmin，P
HUE_received+max(snr(L)，x+delta)+PL)
Formula four
Wherein, delta can be by algorithm simulating for increasing the snr gain of system information reliability, and actual measurement is confirmed.
On the other hand, if HeNB only need calculate the transmitting power of muting subframe, then can an execution in step 5100, if HeNB only need calculate the transmitting power of protected subframe, then can an execution in step 5101-step 5103, repeat no more at this.
Little base station subframe configuration information that step 520:HeNB will generate mails to the HUE in the local compass of competency, and carries out transfer of data based on said little base station subframe configuration information and HUE, to realize Interference Control
After HUE obtains little base station subframe configuration information; Can be according to the position and the transmitting power of muting subframe, and/or the position of protected subframe and transmitting power, carry out path loss and measure; And demodulation high order modulation; If HUE can not carry out path loss measurement accurately then can't carry out uplink power control accurately,, just can not carry out 16QAM and 64QAM demodulation if HUE does not have reference symbol power information accurately.
In the present embodiment; When execution in step 520; HeNB need promptly be position and the transmitting power with the muting subframe with little base station subframe configuration information notice HUE, and/or the position of protected subframe and transmitting power mail to HUE; The transmitting power of subframe promptly is the transmitting power of the reference symbol of subframe use, is called referenceSignalPower in following examples.In the practical application, HeNB sends little base station subframe configuration information has multiple implementation, comprises but is not limited to following three kinds:
First kind of mode is: define the information element (IE) in the new system information block (SIB), be called subframePower, HeNB adopts subframePower to carry little base station subframe configuration information.Wherein, subframePower comprises following information:
1, referenceSignalPower set { CRSPower1; CRSPower2; ... CRSPowerX}, the corresponding performance number that quantized of CRSPowerX is used to characterize the referenceSignalPower of muting subframe and/or protected subframe; The referenceSignalPower that also can comprise further, the normal subframe;
2, the subframe set of referenceSignalPower set correspondence subframeSet1}, and subframeSet2} ... subframeSetX ' } }; Be used to characterize the position (further also can characterize the position of normal subframe) of muting subframe and/or protected subframe; A performance number CRSPowerX in the set of this subframe any one { subframeSetX ' } corresponding referenceSignalPower set, for example, subframeSetX ' } be { 0; 4; 5,9}, its corresponding performance number CRSPowerX is 16dBm.
Adopt first kind of mode when HUE notifies little base station subframe configuration information; HUE need not clearly to know that which part is the muting subframe; Which part is the protected subframe; Even need not to know that which part is the normal subframe, only need to know based on little base station subframe configuration information which kind of referenceSignalPower is the subframe of which position adopt get final product.
The second way is that HeNB adopts the second type systematic block of information (SIB2) of expansion to carry little base station subframe configuration information.
In the present embodiment, the above-mentioned second way comprises but is not limited to following three kinds of implementations:
Mode A: at present, MBSFN sub-frame configuration ratio (MBSFN-SubframeConfiguratio) among the 36.331 agreement SIB2 of LTE has defined the relevant configuration of MBSFN subframe.ReferenceSignalPower information disposes (RadioResourceConfigCommon) by common radio resources among the SIB2:: DSCH Downlink Shared Channel configuration (pdsch-Configuration):: common downlink shared channel configuration (PDSCH-ConfigCommon) definition.Can obtain little base station subframe configuration information through these two information elements (IE) among the expansion SIB2, like MB SFN-SubframeConfiguratio and PDSCH-ConfigCommon; Be specially:
Adopt the IE that expands among the SIB2 to carry the position and the referenceSignalPowe of protected subframe, original IE carries the position and the referenceSignalPowe of muting subframe among the employing SIB2.
For example, carry the referenceSignalPower of protected subframe in the IE that in PDSCH-ConfigCommon, expands, and the position of protected subframe; In MBSFN-SubframeConfigurati, carry the position of muting subframe in original IE, in PDSCH-ConfigCommon, carry the referenceSignalPower of muting subframe in original IE; Further, can also in PDSCH-ConfigCommon, carry the referenceSignalPower of normal subframe in original IE.
For example, the little base station subframe configuration information that adopts mode A to be provided with is following:
PROTECEDframeAllocationOffset INTEGER(0..9)；
PDSCH-ConfigCommon::＝ SEQUENCE{
referenceSignalPower INTEGER(-60..50)，
protectedframereferenceSignalPower INTEGER(-60..50)，
p-b ENUMERATED{pb0，pb?1，pb2，pb3}
Mode B: adopt the information element IE that expands among the SIB2 carry the muting subframe (as, MBSFN subframe or almost blank subframe) position and referenceSignalPower, and the position of protected subframe and referenceSignalPower.The referenceSignalPower that can also comprise further, the normal subframe.
It is thus clear that when adopting mode B, HeNB sets according to the attribute of three kinds of subframes, can notify the referenceSignalPower of three kinds of subframes, and notifies the wherein position of two kinds of subframes.
For example, the little base station subframe configuration information that adopts mode B to be provided with is following:
PROTECEDframeAllocationOffset INTEGER(0..9)；
MUTINGframeAllocationOffset?INTEGER(0..9)；
PDSCH-ConfigCommon::＝ SEQUENCE{
referenceSignalPower INTEGER(-60..50)，
protectedframereferenceSignalPower INTEGER(-60..50)，
mutingframereferenceSignalPower INTEGER(-60..50)，
p-b ENUMERATED{pb0，pb?1，pb2，pb3}
Mode C: adopt the information element IE that expands among the SIB2 to carry muting subframe (position and the referenceSignalPower of MBSFN subframe or almost blank subframe; The indicating bit whether transmitting power of sign protected subframe exists, and the referenceSignalPower of protected subframe; The referenceSignalPower that can also comprise further, the normal subframe.
It is thus clear that when adopting mode C, HeNB sets according to the attribute of three kinds of subframes; Can notify the referenceSignalPower of three kinds of subframes; The position of the notice muting subframe that shows, the latent notice of showing (as, adopt the indicating bit of 1bit) existence of protected subframe.If the value of 1bit indicating bit is true; Then HUE is corresponding with the referenceSignalPower and the predefined protected subframe set of system of protected subframe; Thereby can reduce signaling consumption; It is thus clear that the indicating bit of 1bit also can be regarded as the position of implicitly having notified the protected subframe; If the value of 1bit indicating bit is 0, then expression does not have the protected subframe, and the value of the referenceSignalPower of protected subframe is also just nonsensical so, can not use.
For example; HeNB sends expansion SIB2 signaling to HUE; HUE confirms to exist the referenceSignalPower of protected subframe according to the indicating bit of 1bit, supposes that then HeNB ReferenceSignalPower with the protected subframe in the protected subframe set that configures sends data; The set of protected subframe can preestablish (for example, broadcast message and/or synchronizing information place channel) perhaps by other signalings.
For example, adopt little base station subframe configuration information of mode C configuration following:
ProtectedframeOn＝BOOLEAN；
Third Way is: HeNB adopts the descending control signaling of expansion to carry little base station subframe configuration information; For example; Expand the form format of the Downlink Control Information (DCI) in Rel 8 agreements and Rel 9 agreements, and send to HUE through Physical Downlink Control Channel (PDCCH).
Wherein, little base station subframe configuration information, as, the DCI after the expansion comprises:
1, referenceSignalPowerOffset set { CRSPowerOffset1; CRSPowerOffset2; ... CRSPowerOffsetX}; The corresponding power offset values that quantized of CRSPowerOffsetX, the referenceSignalPower that notifies with PDSCH-ConfigCommon in the broadcast message is a benchmark.
2, corresponding subframe Offset the set { { subframeOffset1} of referenceSignalPowerOffset set; SubframeOffset2} ... { subframeOffsetX ' } is used to characterize the position (further also can characterize the position of normal subframe) of muting subframe and/or protected subframe; With the 0th subframe is benchmark; A power excursion value CRSPowerOffsetX in the set of this sub-frame offset any one { subframeSetOffsetX ' } corresponding referenceSignalPowerOffset set, for example, subframeSetOffsetX ' } be { 0; 4; 5,9}, its corresponding performance number CRSPowerOffseX is 16dBm.
Adopt the third mode when HUE notifies little base station subframe configuration information; HUE need not equally clearly to know that which part is the muting subframe; Which part is the protected subframe; Even need not to know that which part is the normal subframe, only need to know based on little base station subframe configuration information which kind of referenceSignalPowerOffset is the subframe of which position adopt get final product.
For example; HeNB sends expansion DCI to HUE; HUE is a benchmark with the referenceSignalPower of PDSCH-ConfigCommon notice in the broadcast message; According to power offset among the DCI (CRSPowerOffset X) and corresponding sub-frame offset (subframeOffset x '), calculate the referenceSignalPower of each subframe.
In the above-described embodiments, after HeNB generates little base station subframe configuration information, connect if exist between HeNB and the MeNB; As, there is X2 interface, then further; HeNB also needs and should mail to MeNB by little base station subframe configuration information, indicates this MeNB with reference to little base station subframe configuration information that HeNB sends, and generates corresponding macro base station subframe configuration information; So that MUE measures more accurately and reports, hide thereby realize disturbing.
On the other hand, HeNB can add the 1bit indicating bit in the little base station subframe configuration information that generates, and the notice HUE of implicit expression carries out parameter measurement according to the power difference in the subframe configuration information of little base station to given sub-frame and reports; Perhaps, the explicit notice HUE subframe set to be measured of HeNB.
Corresponding with the foregoing description, MeNB also need obtain preset sub-frame property information, and generates corresponding macro base station subframe configuration information based on this sub-frame property information, is used to indicate MUE to carry out parameter measurement accurately and reports.Consult shown in Figure 7ly, in the embodiment of the invention, MeNB generates corresponding macro base station subframe configuration information based on the sub-frame property information of obtaining, and is following to realize the disturbing detailed process of hiding:
Step 700:MeNB obtains preset sub-frame property information.At least the muting subframe of closing that comprises the HeNB employing in this sub-frame property information is gathered, and/or by the set of protection protected subframe.
With step 500 in like manner; When macro base station obtains preset sub-frame property information; Can receive the preset sub-frame property information that issues from network management system, also can be directly after this locality obtain through X2 interface or network management system and the coordination of little base station, preset sub-frame property information.
Step 710:MeNB is based on the sub-frame property information that obtains; Generate corresponding macro base station subframe configuration information; At least comprise in this macro base station subframe configuration information: the group measurement parameter that MUE need report, and measuring position and report cycle during every group of measurement parameter.
MeNB can dispose MUE at most and carry out reporting of three groups of measurement parameters, comprises muting subframe measurement and report, protected subframe measurement and report, and normal subframe measurement and report.The measuring position of various subframes promptly is to confirm according to muting subframe set of carrying in the sub-frame property information and/or the set of protected subframe.
In the present embodiment, can define information element (IE), with offset indication measurement position (being the position of muting subframe and/or protected subframe).For example:
measureSetConfig{
MeasureSet：{3}
SetOffset：{
Set1{3}；
Set2{0，4，5，9}；
Set3{...}；
}
}
MeasureSetConfig can pass through control channel or broadcast channel, notifies whole MUE or part MUE, and MUE carries out parameter measurement on this basis and reports.Its concrete set-up mode is as shown in Figure 8 for example.
Step 720:MeNB mails to MUE with the macro base station subframe configuration information that generates, and indication MUE carries out parameter measurement based on the macro base station subframe configuration information that receives and reports, and hides to realize disturbing.
In the present embodiment; After MUE carries out parameter measurement according to the macro base station subframe configuration information that receives and reports; MeNB can will receive the strongly disturbing MUE of HeNB according to the metrical information that MUE reports as far as possible and be dispatched to muting subframe and/or the enterprising data transfer of protected subframe that disposes in the sub-frame property information, reach with this and disturb the purpose of hiding.Further, because HeNB can farthest reduce transmission in the muting subframe, therefore preferable, the principle of MeNB is to carry out transfer of data at muting subframe scheduling MUE as far as possible, guarantees the performance of MUE with this.
In the present embodiment, MeNB mails to MUE through eating dishes without rice or wine with the macro base station subframe configuration information.Further, if be provided with X2 interface between MeNB and the HeNB, then MeNB can obtain HeNB through X2 interface the little base station subframe configuration information that finishes is set; And based on the sub-frame property information that obtains; With reference to little base station subframe configuration information, generate corresponding macro base station subframe configuration information, because little base station subframe configuration information is compared sub-frame property information; The muting subframe that comprises and/or the set-up mode of protected subframe are more detailed; Therefore, more accurate with reference to the macro base station subframe configuration information that little base station subframe configuration information generates, more help MUE realization interference and hide.
In the present embodiment; Make HeNB obtain the sub-frame property information that identical being used to characterizes muting subframe and/or protected subframe set-up mode with MeNB; HeNB can effectively dispatch the HUE in the compass of competency according to the sub-frame property information that obtains, and the downlink transfer of control HUE, to realize Interference Control; And MeNB can dispatch the MUE in the compass of competency according to the sub-frame property information that obtains effectively; Indication MUE carries out parameter measurement in suitable measuring position and reports, and the downlink transfer of control MUE, hides to realize disturbing.Like this, the strong jamming that just can effectively avoid HeNB that MUE is caused, and improved the throughput of layering networking, thus promoted the covering performance and the message transmission rate of layering networking.The embodiment of the invention is applicable to the descending Interference Control with layer network too, repeats no more at this.
Based on the foregoing description, consult shown in Figure 1ly, in the embodiment of the invention, comprise some HeNB and MeNB in the layering networking, wherein,
HeNB, (also can be other little base stations, be merely for example here); Be used to obtain preset sub-frame property information, comprise the set of muting subframe in this sub-frame property information at least, and/or the set of protected subframe; And, generating corresponding little base station subframe configuration information based on the sub-frame property information that obtains, this little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least; And/or the position of protected subframe and transmitting power; And little base station subframe configuration information that will generate mails to the HUE in the local compass of competency, and carries out transfer of data based on this little base station subframe configuration information and HUE, with the realization Interference Control.
MeNB is used to obtain preset sub-frame property information, comprises the muting subframe set that HeNB adopts in this sub-frame property information at least; And/or protected subframe set; And, generating corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, this macro base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter; And the measuring position of every group of measurement parameter and report cycle; And the macro base station subframe configuration information that generates mail to the MUE in the local compass of competency, and indication MUE carries out parameter measurement according to the macro base station subframe configuration information that receives and reports, and hides to realize interference.
Consult shown in Figure 9ly, in the embodiment of the invention, HeNB comprises acquiring unit 90, processing unit 91 and communication unit 92, wherein,
Acquiring unit 90 is used to obtain preset sub-frame property information, comprises the set of muting subframe in this sub-frame property information at least, and/or the set of protected subframe;
Processing unit 91; Be used for based on the sub-frame property information that obtains; Generate little base station, corresponding little base station subframe configuration information, this little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
Communication unit 92 is used for the little base station subframe configuration information that generates is mail to the HUE in the local compass of competency, and carries out transfer of data based on this little base station subframe configuration information and HUE, to realize Interference Control.
Consult shown in Figure 10ly, in the embodiment of the invention, MeNB comprises acquiring unit 100, processing unit 101 and communication unit 102, wherein,
Acquiring unit 100 is used to obtain preset sub-frame property information, comprises the muting subframe set that HeNB adopts in this sub-frame property information at least, and/or the set of protected subframe;
Processing unit 101; Be used for based on the sub-frame property information that obtains; Generate corresponding macro base station subframe configuration information, this little base station subframe configuration information comprises at least that MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle.
Communication unit 102 is used for the macro base station subframe configuration information that generates is mail to the MUE in the local compass of competency, and indication MUE carries out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
Obviously, those skilled in the art can carry out kind of change and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (25)
1. a method that realizes Interference Control is characterized in that, comprising:
Little base station obtains preset sub-frame property information, comprises at least in the said sub-frame property information to close the set of muting subframe, and/or by the set of protection protected subframe;
Said little base station generates corresponding little base station subframe configuration information based on the sub-frame property information that obtains, and said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
The Home eNodeB user HUE in the local compass of competency is mail to said little base station subframe configuration information in said little base station, and carries out transfer of data based on said little base station subframe configuration information and HUE, to realize Interference Control.
2. the method for claim 1 is characterized in that, said little base station obtains preset sub-frame property information, comprising:
The preset sub-frame property information that reception issues from network management system, perhaps, directly this locality obtain coordinate with macro base station through X2 interface or network management system after, the sub-frame property information of presetting.
3. according to claim 1 or claim 2 method; It is characterized in that; Said little base station generates corresponding little base station subframe configuration information based on the sub-frame property information that obtains, and said little base station subframe configuration information is used to indicate the position and the transmitting power of muting subframe; And/or the position of protected subframe and transmitting power, comprising:
The position of muting subframe is confirmed based on the sub-frame property information of obtaining in little base station, and based on the demodulation threshold of confirming according to the measurement feedback of HUE, calculates the transmitting power of muting subframe;
And/or
The position of protected subframe is confirmed in little base station based on the sub-frame property information of obtaining; And estimate the down load in the following fixed time section; Balanced said down load between protected subframe and common normal subframe; And, calculate the transmitting power of protected subframe based on feed back the down load that definite demodulation threshold and protected subframe are carried according to the measurement of HUE.
4. method as claimed in claim 3; It is characterized in that; Said little base station obtains the position and the transmitting power of muting subframe; And/or in the process of the position of protected subframe and transmitting power, further will control signaling or message scheduling to specifying the normal subframe, and proofread and correct the transmitting power that this specifies the normal subframe according to down load of specifying the normal subframe to carry and preset snr gain.
5. according to claim 1 or claim 2 method is characterized in that, when the HUE in the local compass of competency is mail to said little base station subframe configuration information in said little base station, adopts the system information block SIB of redetermination to carry said little base station subframe configuration information, comprising:
Adopt the information element IE of redetermination among the SIB to carry the transmitting power set of muting subframe and/or protected subframe, and gather corresponding subframe with this transmitting power and gather.
6. according to claim 1 or claim 2 method; It is characterized in that; When the HUE in the local compass of competency is mail to said little base station subframe configuration information in said little base station, adopt the second type systematic block of information SIB2 of expansion to carry said little base station subframe configuration information, comprising:
Adopt the information element IE that expands among the SIB2 to carry the position and the transmitting power of protected subframe, original IE carries the position and the transmitting power of muting subframe among the employing SIB2; Perhaps,
The information element IE that expands among the employing SIB2 carries the position and the transmitting power of muting subframe, and the position of protected subframe and transmitting power; Perhaps,
The information element IE that expands among the employing SIB2 carries the position and the transmitting power of muting subframe, the indicating bit whether transmitting power of sign protected subframe exists, and the transmitting power of protected subframe.
7. according to claim 1 or claim 2 method is characterized in that, when the HUE in the local compass of competency is mail to said little base station subframe configuration information in said little base station, adopts the descending control signaling of expansion to carry said little base station subframe configuration information, comprising:
Adopt the descending control signaling of expansion to carry the transmit power offset duration set of muting subframe and/or protected subframe, and gather with the corresponding sub-frame offset of this transmit power offset duration set.
8. according to claim 1 or claim 2 method; It is characterized in that; After said little base station generates said little base station subframe configuration information; Said little base station subframe configuration information is mail to macro base station, indicate this macro base station, generate corresponding macro base station subframe configuration information with reference to said little base station subframe configuration information.
9. realize disturbing the method for hiding for one kind, it is characterized in that, comprising:
Macro base station obtains preset sub-frame property information, and comprise the muting subframe of closing that adopts little base station in the said sub-frame property information at least and gather, and/or by the set of protection protected subframe;
Said macro base station is based on the sub-frame property information that obtains; Generate corresponding macro base station subframe configuration information; Said macro base station subframe configuration information comprises at least that macro base station user MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle;
Said macro base station mails to the MUE in the local compass of competency with said macro base station subframe configuration information, and indicates said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
10. method as claimed in claim 9 is characterized in that, said macro base station obtains preset sub-frame property information, comprising:
The preset sub-frame property information that reception issues from network management system, perhaps, directly this locality obtain coordinate with little base station through X2 interface or network management system after, the sub-frame property information of presetting.
11. method as claimed in claim 9 is characterized in that, said macro base station adopts control channel or broadcast channel with said macro base station subframe configuration information, mails to all or part of MUE in the local compass of competency.
12., it is characterized in that said macro base station generates corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, and comprising like claim 9,10 or 11 described methods:
Said macro base station receives little base station subframe configuration information that send little base station, and said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
Said macro base station with reference to said little base station subframe configuration information, generates corresponding macro base station subframe configuration information based on the subframe configuration information that obtains.
13. a device of realizing Interference Control is characterized in that, comprising:
Acquiring unit is used to obtain preset sub-frame property information, comprises at least in the said sub-frame property information to close the set of muting subframe, and/or by the set of protection protected subframe;
Processing unit; Be used for based on the sub-frame property information that obtains; Generate little base station, corresponding little base station subframe configuration information, said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
Communication unit is used for said little base station subframe configuration information is mail to the Home eNodeB user HUE in the local compass of competency, and carries out transfer of data based on said little base station subframe configuration information and HUE, to realize Interference Control.
14. device as claimed in claim 13 is characterized in that, said acquiring unit obtains preset sub-frame property information, comprising:
The preset sub-frame property information that reception issues from network management system, perhaps, directly this locality obtain coordinate with macro base station through X2 interface or network management system after, the sub-frame property information of presetting.
15. like claim 13 or 14 described devices; It is characterized in that; Said processing unit generates corresponding little base station subframe configuration information based on the sub-frame property information that obtains, and said little base station subframe configuration information is used to indicate the position and the transmitting power of muting subframe; And/or the position of protected subframe and transmitting power, comprising:
Said processing unit is confirmed the position of muting subframe based on the sub-frame property information of obtaining, and based on the demodulation threshold of confirming according to the measurement feedback of HUE, calculates the transmitting power of muting subframe;
And/or
Said processing unit is confirmed the position of protected subframe based on the sub-frame property information of obtaining; And estimate the down load in the following fixed time section; Balanced said down load between protected subframe and common normal subframe; And, calculate the transmitting power of protected subframe based on feed back the down load that definite demodulation threshold and protected subframe are carried according to the measurement of HUE.
16. device as claimed in claim 15; It is characterized in that; Said processing unit generates in the process of said little base station subframe configuration information; Further will control signaling or message scheduling to specifying the normal subframe, and proofread and correct the transmitting power that this specifies the normal subframe according to down load of specifying the normal subframe to carry and preset snr gain.
17. like claim 13 or 14 described devices; It is characterized in that; When said communication unit mails to the HUE in the local compass of competency with said little base station subframe configuration information, adopt the system information block SIB of redetermination to carry said little base station subframe configuration information, comprising:
Adopt the information element IE of redetermination among the SIB to carry the transmitting power set of muting subframe and/or protected subframe, and gather corresponding subframe with this transmitting power and gather.
18. like claim 13 or 14 described devices; It is characterized in that; When said communication unit mails to the HUE in the local compass of competency with said little base station subframe configuration information, adopt the second type systematic block of information SIB2 of expansion to carry said little base station subframe configuration information, comprising:
Adopt the information element IE that expands among the SIB2 to carry the position and the transmitting power of protected subframe, original IE carries the position and the transmitting power of muting subframe among the employing SIB2; Perhaps,
The information element IE that expands among the employing SIB2 carries the position and the transmitting power of muting subframe, and the position of protected subframe and transmitting power; Perhaps,
The information element IE that expands among the employing SIB2 carries the position and the transmitting power of muting subframe, the indicating bit whether transmitting power of sign protected subframe exists, and the transmitting power of protected subframe.
19., it is characterized in that like claim 13 or 14 described devices, when said communication unit mails to the HUE in the local compass of competency with said little base station subframe configuration information, adopt the descending control signaling of expansion to carry said little base station subframe configuration information, comprising:
Adopt the descending control signaling of expansion to carry the transmit power offset duration set of muting subframe and/or protected subframe, and gather with the corresponding sub-frame offset of this transmit power offset duration set.
20. like claim 13 or 14 described devices; It is characterized in that; After said processing unit generates said little base station subframe configuration information; Said communication unit mails to macro base station with said little base station subframe configuration information, indicates this macro base station with reference to said little base station subframe configuration information, generates corresponding macro base station subframe configuration information.
21. realize disturbing the device of hiding for one kind, it is characterized in that, comprising:
Acquiring unit is used to obtain preset sub-frame property information, and comprise the muting subframe of closing that adopts little base station in the said sub-frame property information at least and gather, and/or by the set of protection protected subframe;
Processing unit; Be used for based on the sub-frame property information that obtains; Generate corresponding macro base station subframe configuration information, said macro base station subframe configuration information comprises at least that macro base station user MUE need report respectively organizes measurement parameter and the measuring position of every group of measurement parameter and report cycle;
Communication unit is used for said macro base station subframe configuration information is mail to the MUE in the local compass of competency, and indicates said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, and hides to realize interference.
22. device as claimed in claim 21 is characterized in that, said acquiring unit obtains preset sub-frame property information, comprising:
The preset sub-frame property information that reception issues from network management system, perhaps, directly this locality obtain coordinate with little base station through X2 interface or network management system after, the sub-frame property information of presetting.
23. device as claimed in claim 21 is characterized in that, said communication unit adopts control channel or broadcast channel with said macro base station subframe configuration information, mails to all or part of MUE in the local compass of competency.
24., it is characterized in that said processing unit generates corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, and comprising like claim 21,22 or 23 described devices:
Said processing unit receives little base station subframe configuration information that send little base station through said communication unit, and said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least, and/or the position of protected subframe and transmitting power;
Said processing unit with reference to said little base station subframe configuration information, generates corresponding macro base station subframe configuration information based on the subframe configuration information that obtains.
25. a system that realizes that Interference Control and interference are hidden is characterized in that, comprising:
Little base station is used to obtain preset sub-frame property information, comprises at least in the said sub-frame property information to close the set of muting subframe; And/or by the set of protection protected subframe; And, generating corresponding little base station subframe configuration information based on the sub-frame property information that obtains, said little base station subframe configuration information comprises the position and the transmitting power of muting subframe at least; And/or the position of protected subframe and transmitting power; And said little base station subframe configuration information mail to the Home eNodeB user HUE in the local compass of competency, and carry out transfer of data based on said little base station subframe configuration information and HUE, with the realization Interference Control;
Macro base station is used to obtain preset sub-frame property information, comprises the muting subframe set of adopting little base station in the said sub-frame property information at least; And/or protected subframe set; And, generating corresponding macro base station subframe configuration information based on the sub-frame property information that obtains, said macro base station subframe configuration information comprises at least that macro base station user MUE need report respectively organizes measurement parameter; And the measuring position of every group of measurement parameter and report cycle; And said macro base station subframe configuration information mail to the MUE in the local compass of competency, and indicate said MUE to carry out parameter measurement according to the macro base station subframe configuration information that receives and report, hide to realize interference.
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| CN106716863B (en) * | 2014-12-22 | 2020-04-03 | 华为技术有限公司 | Interference signal avoiding method and communication equipment |
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