CN102238582B - A kind of mthods, systems and devices determining that adjacent area is disturbed - Google Patents

A kind of mthods, systems and devices determining that adjacent area is disturbed Download PDF

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Publication number
CN102238582B
CN102238582B CN201010159820.7A CN201010159820A CN102238582B CN 102238582 B CN102238582 B CN 102238582B CN 201010159820 A CN201010159820 A CN 201010159820A CN 102238582 B CN102238582 B CN 102238582B
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parameter value
community
power parameter
value
base station
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CN102238582A (en
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高秋彬
缪德山
孙韶辉
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Abstract

The present embodiments relate to wireless communication technology, particularly to a kind of mthods, systems and devices determining that adjacent area is disturbed, if using RE MUTING scheme in order to solve community present in prior art, the problem that adjacent area interference ratio of precision that user terminal determines is relatively low.The method of the embodiment of the present invention includes: the base station of the first community determines the first jamming power parameter value, and wherein said first jamming power parameter value is for determining the interference that the user terminal in this first community is produced by the second community；Described first jamming power parameter value is sent to described user terminal by the base station of described first community, is used for indicating described user terminal according to described first jamming power parameter value, determines adjacent area interference value.Use the embodiment of the present invention to determine that adjacent area is disturbed due to user terminal according to the first jamming power parameter value, thus improve the precision of Interference Estimation.

Description

A kind of mthods, systems and devices determining that adjacent area is disturbed
Technical field
The present invention relates to wireless communication technology, particularly to a kind of method, system and dress determining and disturbing adjacent area Put.
Background technology
In cellular wireless network system, generally there are a base station and user terminal communication in each community.Data are transmitted Before process starts, base station can send reference signal (pilot signal), user terminal then root to user terminal Channel estimation value is obtained according to these reference signals.Reference signal is to appoint at special time, characteristic frequency The known signal sequence of upper transmission.The factors such as interference and noise all can affect the quality that channel is estimated.
Generally user terminal is in different geographical position, has different received signal strengths and makes an uproar Sound and the intensity of interference.Therefore, some user terminals can be with higher rate communication, as being positioned in community The terminal of the heart, other user terminal then can only be with relatively low rate communication, such as the terminal of cell edge. In order to make full use of the transmission bandwidth of user terminal, be sent to the data form of user terminal preferably with this use The channel condition of family terminal matches.Make the data form being sent to user terminal and its channel condition phase The technology joined is referred to as link circuit self-adapting.
In order to help base station to realize link circuit self-adapting, user terminal needs according to its channel condition reporting channel matter Amount instruction information (CQI).The CQI that user terminal reports correspond to certain running time-frequency resource, say, that The CQI that user terminal reports is to represent the transmittability on these running time-frequency resources.The calculating of CQI needs user Terminal records disturbing of the adjacent cell that self is subject to, including interference I and noise power N0.
As it is shown in figure 1, the pilot tone in a PRB (Physical Resource Block, Physical Resource Block) With data mapping relations.The first two OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol for controlling the transmission of information, be initially data from the 3rd OFDM symbol Region.Pilot tone RE (Resource Element, resource element) and data RE are included in data area. The pilot tone of different districts may map on different RE.This is because the power of usual pilot tone RE can be relatively Height, being mapped to interference between the pilot tone on identical RE strongly can affect the precision that channel is estimated.I.e. Making so, user terminal utilizes pilot tone RE to carry out still to be done by neighbor cell data when channel is estimated Disturb.The terminal experienced interference of cell edge is the strongest.For solving this problem, community can be by adjacent Community is sent out those RE of pilot tone and is available, and i.e. sends data 0, and this scheme is referred to as RE MUTING, tool Body sees Fig. 1.
User terminal feedback CQI needs to estimate the disturbing, at RE MUTING of the adjacent cell that self is subject to Scheme in adjacent cell interference in the position of pilot tone without.Because the interference of neighbor cell is typically The strongest, the interference calculated in pilot frequency locations to be far below actual experienced interference.
In sum, if community uses RE MUTING scheme at present, the adjacent area that user terminal determines is done Disturb ratio of precision relatively low.
Summary of the invention
The embodiment of the present invention provides a kind of mthods, systems and devices determining that adjacent area is disturbed, existing in order to solve If community uses RE MUTING scheme present in technology, the adjacent area interference precision that user terminal determines Than relatively low problem.
The embodiment of the present invention provides a kind of method determining that adjacent area is disturbed, and the method includes:
The base station of the first community determines the first jamming power parameter value, wherein said first jamming power parameter value For determining the interference that the user terminal in this first community is produced by the second community；
Described first jamming power parameter value is sent to described user terminal by the base station of described first community, uses In indicating described user terminal according to described first jamming power parameter value, determine adjacent area interference value.
The embodiment of the present invention also provides for a kind of method determining that adjacent area is disturbed, and the method includes:
User terminal receives the first jamming power parameter value of base station from the first community, and wherein said first Jamming power parameter value is for determining the interference that this first intra-cell users terminal is produced by the second community；
Described user terminal, according to described first jamming power parameter value, determines adjacent area interference value.
The embodiment of the present invention provides a kind of system determining that adjacent area is disturbed, and this system includes:
The base station of the first community, is used for determining and send the first jamming power parameter value；
User terminal, for according to described first jamming power parameter value, determines adjacent area interference value；
Wherein, described first jamming power parameter value is for determining that the second community is to the user in this first community The interference that terminal produces.
The embodiment of the present invention provides a kind of base station, and this base station includes:
Parameter value determines module, is used for determining the first jamming power parameter value, wherein said first jamming power Parameter value is for determining the interference that the user terminal in this first community is produced by the second community；
Parameter value sending module, for described first jamming power parameter value is sent to described user terminal, For indicating described user terminal according to described first jamming power parameter value, determine adjacent area interference value.
The embodiment of the present invention provides a kind of user terminal, and this user terminal includes:
Parameter value receiver module, for receiving the first jamming power parameter value of the base station from the first community, Wherein said first jamming power parameter value is for determining that the second community is to the user terminal in this first community The interference produced；
Interference value determines module, for according to described first jamming power parameter value, determines adjacent area interference value.
The another kind that the embodiment of the present invention provides determines the method that adjacent area is disturbed, and the method includes:
The base station of the second community determines transmitting power parameter value；
The base station of described second community determines according to described transmitting power parameter value and sends the second jamming power Parameter value, receives the base station of described second jamming power parameter value for instruction, according to described second interference merit Rate parameter value determines the first jamming power parameter value, and this first jamming power parameter value is sent to user eventually End, determines adjacent area interference value for described user terminal；
Wherein said first jamming power parameter value is for determining that the user terminal in adjacent area is produced by the second community Raw interference.
First jamming power parameter value is sent to user terminal by the base station of the embodiment of the present invention the first community, uses In indicating user terminal according to the first jamming power parameter value, determine adjacent area interference value, wherein the first interference merit Rate parameter value is for determining the interference that the user terminal in this first community is produced by the second community.Due to user According to the first jamming power parameter value, terminal determines that adjacent area is disturbed, thus improve the precision of Interference Estimation；
Further, if the adjacent area interference that user terminal utilizes the embodiment of the present invention to determine determines CQI, also The precision of CQI can be improved, and then enable base station preferably to realize link circuit self-adapting, improve data transmission Efficiency.
Accompanying drawing explanation
Fig. 1 is RE MUTING schematic diagram in background technology；
Fig. 2 is that the embodiment of the present invention determines the system structure schematic diagram disturbed adjacent area；
Fig. 3 is the structural representation of embodiment of the present invention base station；
Fig. 4 is the structural representation of embodiment of the present invention user terminal；
Fig. 5 be the embodiment of the present invention the first determine the method flow schematic diagram disturbed adjacent area；
Fig. 6 is that embodiment of the present invention the second determines the method flow schematic diagram disturbed adjacent area；
Fig. 7 be the embodiment of the present invention the third determine the method flow schematic diagram disturbed adjacent area.
Detailed description of the invention
First jamming power parameter value is sent to user terminal by the base station of the embodiment of the present invention the first community, uses In indicating user terminal according to the first jamming power parameter value, determine adjacent area interference value, wherein the first interference merit Rate parameter value is for determining the interference that the user terminal in this first community is produced by the second community.Due to user According to the first jamming power parameter value, terminal determines that adjacent area is disturbed, thus improve the precision of Interference Estimation.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As in figure 2 it is shown, the embodiment of the present invention determines that the system that adjacent area is disturbed includes: the base station 10 of the first community With user terminal 20.
The base station 10 of the first community, is used for determining and sending the first jamming power parameter value, wherein the first interference Power parameter value is used for determining that the second community (i.e. community B) is to the use in this first community (i.e. community A) The interference that family terminal produces.
In specific implementation process, the first community and the second community are adjacent or non-conterminous Liang Ge communities.
User terminal 20, for receiving the first jamming power parameter value, and according to the first jamming power parameter value, Determine adjacent area interference value.
Wherein, the embodiment of the present invention determines that the system that adjacent area is disturbed can further include: the second community Base station 30.
The base station 30 of the second community, is used for determining transmitting power parameter value, determines according to launching power parameter value Second jamming power parameter value, and the second jamming power parameter value is sent to the base station 10 of the first community.
The base station 10 of the first community and the base station 30 of the second community are different base stations, it is also possible to be same base Stand.
If base station 10 and base station 30 are different base stations, then by the interface (such as X2 interface) between base station It is transmitted；If base station 10 and base station 30 are same base stations, then carried out by the interface of inside of base station Transmission.
Wherein, the second jamming power parameter value can also be notified to multiple communities by the base station 30 of the second community, The neighbor cell of the most each community Dou Shi community B, includes community A the most certainly.
Concrete, if the second jamming power parameter value is notified to community A by the base station 30 of the second community, If then the second community does not send signal in pilot tone RE of the first community (i.e. community B has been RE MUTTING), the average emitted power of pilot tone RE in Measurement bandwidth is removed by the base station 30 of the second community With the average emitted power of data RE in Measurement bandwidth, the value obtained is as launching power parameter value；As Really the second community sends signal in pilot tone RE of the first community (i.e. community B is not RE MUTTING), the base station 30 of the second community determines that transmitting power parameter value is infinitely great.
If the second jamming power parameter value is notified that, to multiple communities, second is little by the base station 30 of the second community The base station 30 in district by the average emitted power of pilot tone RE in Measurement bandwidth divided by the data in Measurement bandwidth The average emitted power of RE, the value obtained is as launching power parameter value.
For ensureing the orthogonality of pilot tone between antenna, every antenna all can not sent out in some specific pilot tones RE Send any signal.The base station 30 of the second community, when calculating the average emitted power of this root antenna, has two kinds Mode:
Pilot tone RE not sending any signal is not counted by the base station 30 of mode the one, second community；
Pilot tone RE not sending any signal is counted by the base station 30 of mode the two, second community, but Make the average emitted power of these pilot tones RE equal to 0.
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth When all launching power, the base station 30 of the second community can calculate in a period of time, in Measurement bandwidth W1 The average emitted power of pilot tone RE and the average emitted power of data RE.
If not dispatching any terminal in a Resource Block, the base station 30 of the second community is by this Resource Block The transmitting power of interior data RE is designated as 0.
If there are many transmitting antennas the base station 30 of the second community, then average emitted power can be wherein one Root launches the mean power of antenna；Can also be mean power sum or the average of all transmitting antennas, than If the mean power sum of all transmitting antennas is exactly that then the mean power first determining every transmitting antenna is asked With, the average of all transmitting antennas is exactly to sue for peace the mean power of all transmitting antennas then divided by antenna number Amount.
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth The transmitting power parameter value that all transmitting power obtains can be the statistical value in the past period, it is also possible to be Predictive value to a period of time in future.
The base station 30 of the second community determines when transmitting power parameter value is infinitely great (∞), can directly make It is infinitely great for launching power parameter value, it is also possible to the average emitted power making data RE in Measurement bandwidth is 0, then by the average emitted power of pilot tone RE in Measurement bandwidth divided by data RE in Measurement bandwidth Average emitted power, the value obtained must be infinitely great.
When the base station 30 of the second community determines the second jamming power parameter value according to transmitting power parameter value, real Border is exactly to be quantified by the transmitting power parameter value determined, and numerical value quantization obtained is as the second interference Power parameter value, do so can be saved the bit number of the base station 10 being sent to the first community, thus be saved Resource.
The mode that transmitting power parameter value carries out quantifying is had a lot.Such as: from numerical value set, select one With the immediate numerical value of transmitting power parameter value determined, and using this numerical value as the second jamming power parameter Value；
Such as the transmitting power parameter value determined is carried out log-domain conversion, from numerical value set select one with Carry out the immediate numerical value of value that log-domain is converted to, and using this numerical value as the second jamming power parameter Value.Assume that launching power parameter value is ρB, quantify being first transformed into log-domain again.I.e.Then look in {-4 ,-3 ,-2 ,-1,0,1,2,3,4,5,6,7,8,9,10, ∞ } set With ρB dBImmediate numerical value, and using this numerical value as the second jamming power parameter value.
If there being multiple immediate numerical value in numerical value set, such as launching power parameter value is 3.5, numerical value Set has 3 and 4, then can randomly choose one, it is also possible to select big or little numerical value as required.
It is not limited to it should be noted that the embodiment of the present invention carries out quantification manner to transmitting power parameter value Above two, the mode that transmitting power parameter value carries out quantifying can be all suitable for the embodiment of the present invention by other.
Accordingly, the base station 10 of the first community the signal determining neighbor cell be interference signal after, according to The the second jamming power parameter value received, determines the first jamming power parameter value；
After the signal determining neighbor cell is not interference signal, determine that the first jamming power parameter value is infinite Greatly.
The base station 10 of the first community judges whether the signal of neighbor cell is that the mode disturbing signal has a variety of, Such as specific transmission plan, the signal of neighbor cell is not the most interference, but useful signal.Such as Multi-point cooperative transmission scheme, the base station of multiple communities is simultaneously to user terminal transmission data, now, to The signal that the community of user terminal transmission data sends is exactly useful signal rather than interference signal.
If it is determined that after the signal of neighbor cell is interference signal, the base station 10 of the first community is dry according to second Disturb power parameter value, determine that the mode of the first jamming power parameter value includes but not limited in following manner Kind:
Using the second jamming power parameter value of receiving as the first jamming power parameter value；
The second jamming power parameter value of log-domain conversion will be carried out, carry out the conversion of linear territory (i.e.The numerical value obtained is as the first jamming power parameter value.
The base station 10 of the first community, when sending the first jamming power parameter value to user terminal, can be passed through A kind of mode in system broadcasts, high-level signaling, physical layer signaling sends.
Concrete, the base station 10 of the first community can be after determining satisfied transmission condition, by the first interference merit Rate parameter value is sent to user terminal 20.
Meet transmission condition and include but not limited to one or more in following condition:
The transmission time set arrives, and the such as cycle sends；
The the second jamming power parameter value being currently received and last the second jamming power parameter value received it Between the absolute value of difference more than threshold value；
When there being the user terminal of new access, the first power parameter value is sent to this user terminal；
Receive the acquisition request that user terminal sends.
In specific implementation process, the base station 10 of the first community can also be by neighbor cell (i.e. community B) Cell ID send jointly to user terminal 20 with the first jamming power parameter value, make user terminal 20 know This first jamming power parameter value of road which community corresponding, thus may determine that when needs adjust interference value It it is which community.
Wherein, user terminal 20, after receiving the first jamming power parameter value, averagely connects according to neighbor cell Receive performance number and the first jamming power parameter value received, determine interference adjusted value, according to interference adjusted value pair Initial interference value is adjusted, and the numerical value after adjusting is as adjacent area interference value.
Concrete, if user terminal 20 is infinitely great at the first jamming power parameter value received, then may be used With directly order interference adjusted value equal to 0；
If user terminal 20 is not infinitely great at the first jamming power parameter value received, then can basis The neighbor cell mean receiving power value determined and the first jamming power parameter value, determine interference adjusted value.
Further, initial interference value, after determining interference adjusted value, is adjusted by user terminal 20 Whole, the numerical value after adjusting is as adjacent area interference value.
If the first jamming power parameter value that user terminal 20 receives is changed through log-domain, then need First to be converted to linear value (i.e. )。
Wherein, user terminal 20 can determine initial interference value according to following manner:
User terminal 20 is according to being subject in pilot tone RE in Measurement bandwidth W2 in the first community estimated Other area interference and noise power, determine initial interference value.
If the neighbor cell B of user terminal community A send pilot tone RE on do not send any data and Pilot tone (i.e. community B has been RE MUTTING), then the interference that user terminal records does not includes community B's Interference.
Wherein, user terminal 20 can determine neighbor cell mean receiving power value according to following manner:
User terminal 20 measures the flat of the neighbor cell (i.e. community B) pilot tone RE in Measurement bandwidth W3 All receive power (can be such as the meansigma methods in certain time), be designated as I1.This reception power can be with 1 Root is launched pilot tone RE of antenna and is calculated, it is also possible to calculate by pilot tone RE of many transmitting antennas.This reception Power calculates according to the channel information of the base station 30 of the second community belonging to the B of community to user terminal 20 Arrive, say, that user terminal 20 channel information to be estimated, then calculate mean power.
In specific implementation process, if the base station 30 of the second community is at the average emitted power calculating antenna Shi Caiyong mode one, then user terminal 20 can use formula one to calculate the mean receiving power of the second community Value.
I 1 = 1 N Σ k = 1 N Σ p = 1 P | h k p | 2 ... ... ... ... .. formula one.
Wherein hk pIt is in community B kth pilot tone RE in the range of setting time and Measurement bandwidth W2 Pth root antenna is to the channel transmission coefficients of terminal；N is the sum of pilot tone RE, and P is antenna sum.
Or, the channel estimation value making pilot tone RE not sending any signal of antenna p is 0, then second The base station 30 of community can use formula two to calculate the second community mean receiving power value.
I 1 = P N Σ k = 1 N Σ p = 1 P | h k p | 2 ... ... ... ... .. formula two.
The implication that in formula two, physical parameter is concrete is identical with formula one, does not repeats them here.
Accordingly, user terminal 20 can determine adjacent area interference value according to formula three.
X=I0+N0+I1/ρB... ... ... formula three.
Wherein, X is adjacent area interference value, I0+N0It is initial interference value, I1It is the second community (community B) Mean receiving power value, ρBIt it is the first jamming power parameter value.
Can be seen that if ρ from formula threeBDuring=∞, then be equivalent to be not counted in neighbor cell (i.e. community B) Interference.
In specific implementation process, if the base station 30 of the second community is at the average emitted power calculating antenna Shi Caiyong mode two, then user terminal 20 can use formula one to calculate the second community mean receiving power value；
Accordingly, user terminal 20 can determine adjacent area interference value according to formula four.
X=I0+N0+I1/(PρB) ... ... ... formula four.
In formula four, P is antenna sum, and the implication that other physical parameters are concrete is identical with formula three, at this Repeat no more.
Or user terminal 20 is when calculating with formula one, respective antenna do not sent leading of any signal Frequently the channel estimation value on RE is set to 0；
Accordingly, user terminal 20 can determine adjacent area interference value according to formula three.
In specific implementation process, Measurement bandwidth W1 above-mentioned, Measurement bandwidth W2 and Measurement bandwidth W3 can be whole bandwidth can also be a subband.
If Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are whole bandwidth, user terminal 20 carry out when determining initial interference value is bandwidth measurement, and the base station 30 of the second community has only to determine every time One the second jamming power parameter value；
If Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are subbands, user terminal 20 carry out when determining initial interference value is that subband is measured, and the base station 30 of the second community needs to determine many every time Individual second jamming power parameter value, the corresponding subband of the most each second jamming power parameter value, and will be many Individual second jamming power parameter value is sent to the base station 10 of the first community, and user terminal 20 is determining that community is done When disturbing, the interference of each subband needs to be adjusted with the first jamming power parameter value of respective sub-bands.
In specific implementation process, if Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are One subband, the base station 10 of the first community can notify according to sub-band sequence one_to_one corresponding notice when First jamming power parameter value；Accordingly, user terminal 20 is according to the first jamming power parameter value received Order be assured that correspondence subband.
The base station 10 of the first community can also be disturbed first according to subband and the corresponding relation of subband identities The subband identities of power parameter value and corresponding subband sends jointly to user terminal 20；Accordingly, user is eventually End 20 is assured that and this son according to subband and the corresponding relation of subband identities and the subband identities that receives The subband that the first jamming power parameter value that tape identification receives together is corresponding.
It should be noted that the embodiment of the present invention determines the mode of the subband that the first jamming power parameter value is corresponding Be not limited to above two, other can determine the mode of subband that the first jamming power parameter value is corresponding with Sample is suitable for the embodiment of the present invention.
Wherein, if the base station of multiple neighbor cells of the first community all delivers to the base station of the first community Two jamming power parameter values, it is right that the base station needs of the first community determine according to each second jamming power parameter value The the first jamming power parameter value (i.e. determining multiple first jamming power parameter value) answered, each is second dry Disturb the corresponding neighbor cell of power parameter value (or subband corresponding to neighbor cell).First is little These the first jamming power parameter values are notified to user terminal 20 by the base station 10 in district.It is right that user terminal 20 needs Each neighbor cell calculates mean receiving power, can calculate each neighbor cell flat in the way of using above All receive power, it would however also be possible to employ formula five or formula six calculate interference value:
X=I0+N0+I1/ρB1+I2/ρB2+...+IM/ρBM... ... ... formula five.
X=I0+N0+I1/(P1ρB1)+I2/(P2ρB2)+...+IM/(PMρBM) ... ... formula six.
Wherein ImIt is the mean receiving power of m-th neighbor cell, PmIt it is the antenna of m-th neighbor cell Number, ρBmCorresponding to the first jamming power parameter value of m-th community, other physical parameters are concrete Implication is identical with formula three, does not repeats them here.
The base station 10 of the first community, can be by when notifying the first jamming power parameter value to user terminal 20 Multiple first jamming power parameter values notify simultaneously, or notify respectively.The cell ID of each community is permissible Notify or notify respectively together with the first jamming power parameter value, or user terminal can be according to the most about Fixed rule implies the corresponding relation obtained between first jamming power parameter value and cell ID.
In specific implementation process, user terminal 20, can be according to determining after determine adjacent area interference value Adjacent area interference value calculates CQI, and CQI reports the base station 10 of the first community.
Further, user terminal 20, can be (the least according to the first community when determining initial interference value District A) pilot tone estimate base station 10 channel information to user terminal 20 of the first community, for Pre-coding matrix etc. is selected when CQI calculates.
Due to user terminal 20 calculate CQI according to the adjacent area interference value determined so as to get the precision of CQI It is significantly increased, and then makes the base station 10 of the first community can preferably realize link circuit self-adapting, improve number Efficiency according to transmission.
As it is shown on figure 3, the base station of the embodiment of the present invention includes: parameter value determines that module 100 and parameter value are sent out Send module 110.
Parameter value determines module 100, is used for determining the first jamming power parameter value, wherein the first jamming power Parameter value is for determining the interference that the user terminal in this first community is produced by the second community.
Parameter value sending module 110, for determining the first jamming power ginseng that module 100 determines by parameter value Numerical value is sent to user terminal, for indicating user terminal according to the first jamming power parameter value, determines adjacent area Interference value.
Wherein, parameter value determine module 100 the signal determining the second community be interference signal after, according to receipts The the second jamming power parameter value from the base station belonging to the second community arrived, determines the first jamming power parameter Value；After the signal determining neighbor cell is not interference signal, determine that the first jamming power parameter value is infinite Greatly.
Further, parameter value sending module 110 is after determining satisfied transmission condition, by the first jamming power Parameter value is sent to user terminal.
Wherein, the base station of the embodiment of the present invention can further include: power determination module 120.
Power determination module 120, is used for determining transmitting power parameter value, determines according to launching power parameter value Second jamming power parameter value, and the second jamming power parameter value is sent to the adjacent area of the community of self-management.
Wherein, power determination module 120 by the average emitted power of pilot tone RE in Measurement bandwidth divided by survey The average emitted power of data RE in amount bandwidth, the value obtained is as launching power parameter value；Or
If neighbor cell sends signal in pilot tone RE of the first community, power determination module 120 determines It is infinitely great for launching power parameter value.
It is also preferred that the left the transmitting power parameter value determined is quantified by power determination module 120, and will quantify The numerical value obtained is as the second jamming power parameter value.
Concrete, power determination module 120 select from numerical value set one with the transmitting power parameter determined It is worth immediate numerical value, and using this numerical value as the second jamming power parameter value；Or
The transmitting power parameter value determined is carried out log-domain conversion, from numerical value set select one with carry out The immediate numerical value of value that log-domain is converted to, and using this numerical value as the second jamming power parameter value.
In specific implementation process, power determination module 120 can determine module 100 and parameter with parameter value Value sending module 110 is in an entity, it is also possible to determine that module 100 and parameter value send mould with parameter value Block 110 is in different entities.
As shown in Figure 4, the user terminal of the embodiment of the present invention includes: parameter value receiver module 200 and interference Value determines module 210.
Parameter value receiver module 200, for receiving the first jamming power parameter of the base station from the first community Value, wherein the first jamming power parameter value is for determining that the user terminal in this first community is produced by the second community Raw interference；
Interference value determines module 210, for the first jamming power determined according to parameter value receiver module 200 Parameter value, determines adjacent area interference value.
Concrete, interference value determines that module 210 is according to neighbor cell mean receiving power value and first received Jamming power parameter value, determines interference adjusted value, is adjusted initial interference value according to interference adjusted value, Numerical value after adjusting is as adjacent area interference value.
As it is shown in figure 5, the embodiment of the present invention the first determine that the method that adjacent area is disturbed comprises the following steps:
Step 501, the base station of the first community determine the first jamming power parameter value, wherein the first jamming power Parameter value is used for determining that the second community (i.e. community B) is to the user in this first community (i.e. community A) eventually The interference that end produces.
In specific implementation process, the first community and the second community are adjacent or non-conterminous Liang Ge communities.
First jamming power parameter value is sent to user terminal by step 502, the base station of the first community, is used for Indicating user terminal, according to the first jamming power parameter value, determines adjacent area interference value.
Wherein, can further include after step 502:
Step 503, user terminal receive the first jamming power parameter value of the base station from the first community.
Step 504, user terminal, according to the first jamming power parameter value, determine adjacent area interference value.
Wherein, can further include before step 501:
Step a500, the base station of the second community determine transmitting power parameter value, and according to launching, power parameter value is true Fixed second jamming power parameter value, and the second jamming power parameter value is sent to the base station of the first community.
Step b500, the base station of the first community receive the second jamming power parameter that the base station of the second community sends Value.
The base station of the first community and the base station of the second community are different base stations, it is also possible to be same base station.
If base station and base station are different base stations, then carried out by the interface (such as X2 interface) between base station Transmission；If base station and base station are same base stations, then it is transmitted by the interface of inside of base station.
In step a500, the second jamming power parameter value can also be notified to many by the base station of the second community Individual community, the neighbor cell of the most each community Dou Shi community B, the most certainly include community A.
Concrete, if the second jamming power parameter value is notified to community A, step by the base station of the second community In a500, if the second community does not send signal in pilot tone RE of the first community, (i.e. community B does RE MUTTING), the average emitted power of pilot tone RE in Measurement bandwidth is removed by the base station of the second community With the average emitted power of data RE in Measurement bandwidth, the value obtained is as launching power parameter value；As Really the second community sends signal in pilot tone RE of the first community (i.e. community B is not RE MUTTING), the base station of the second community determines that transmitting power parameter value is infinitely great.
If the second jamming power parameter value is notified to multiple communities by the base station of the second community, in step 500, The base station of the second community by the average emitted power of pilot tone RE in Measurement bandwidth divided by the number in Measurement bandwidth According to the average emitted power of RE, the value obtained is as launching power parameter value.
For ensureing the orthogonality of pilot tone between antenna, every antenna all can not sent out in some specific pilot tones RE Send any signal.In step a500, the base station of the second community is calculating the average emitted power of this root antenna Time, there is a two ways:
Pilot tone RE not sending any signal is not counted by the base station of mode the one, second community；
Pilot tone RE not sending any signal is counted by the base station of mode the two, second community, but order The average emitted power of these pilot tones RE is equal to 0.
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth When all launching power, the base station of the second community can calculate the pilot tone in a period of time, in Measurement bandwidth W1 The average emitted power of RE and the average emitted power of data RE.
If not dispatching any terminal in a Resource Block, the base station of the second community is by this Resource Block The transmitting power of data RE is designated as 0.
If there are many transmitting antennas the base station of the second community, then average emitted power can be wherein one Penetrate the mean power of antenna；Can also be mean power sum or the average of all transmitting antennas, such as institute Having the mean power sum launching antenna is exactly that then the mean power first determining every transmitting antenna sues for peace, institute Having the average launching antenna is exactly to sue for peace the mean power of all transmitting antennas then divided by antenna amount.
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth The transmitting power parameter value that all transmitting power obtains can be the statistical value in the past period, it is also possible to be Predictive value to a period of time in future.
The base station of the second community determines when transmitting power parameter value is infinitely great (∞), can directly make transmitting Power parameter value is infinitely great, it is also possible to the average emitted power making data RE in Measurement bandwidth is 0, Then by the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth All launching power, the value obtained must be infinitely great.
In step a500, the base station of the second community determines the second jamming power ginseng according to launching power parameter value During numerical value, actual is exactly to be quantified by the transmitting power parameter value determined, and numerical value quantization obtained is made Being the second jamming power parameter value, do so can save the bit number of the base station being sent to the first community, from And save resource.
The mode that transmitting power parameter value carries out quantifying is had a lot.Such as: from numerical value set, select one With the immediate numerical value of transmitting power parameter value determined, and using this numerical value as the second jamming power parameter Value；
Such as the transmitting power parameter value determined is carried out log-domain conversion, from numerical value set select one with Carry out the immediate numerical value of value that log-domain is converted to, and using this numerical value as the second jamming power parameter Value.
If there being multiple immediate numerical value in numerical value set, such as launching power parameter value is 3.5, numerical value Set has 3 and 4, then can randomly choose one, it is also possible to select big or little numerical value as required.
It is not limited to it should be noted that the embodiment of the present invention carries out quantification manner to transmitting power parameter value Above two, the mode that transmitting power parameter value carries out quantifying can be all suitable for the embodiment of the present invention by other.
Accordingly, in step 501, the base station of the first community is interference signal at the signal determining neighbor cell After, according to the second jamming power parameter value received, determine the first jamming power parameter value；
After the signal determining neighbor cell is not interference signal, determine that the first jamming power parameter value is infinite Greatly.
The base station of the first community judges whether the signal of neighbor cell is that the mode disturbing signal has a variety of, than As for specific transmission plan, the signal of neighbor cell is not the most interference, but useful signal.
If it is determined that after the signal of neighbor cell is interference signal, the base station of the first community is according to the second interference merit Rate parameter value, determines the one that the mode of the first jamming power parameter value includes but not limited in following manner:
Using the second jamming power parameter value of receiving as the first jamming power parameter value；
The second jamming power parameter value of log-domain conversion will be carried out, carry out the conversion of linear territory (i.e.The numerical value obtained is as the first jamming power parameter value.
In step 502, the base station of the first community when sending the first jamming power parameter value to user terminal, Can be sent by a kind of mode in system broadcasts, high-level signaling, physical layer signaling.
Concrete, the base station of the first community can be after determining satisfied transmission condition, by the first jamming power ginseng Numerical value is sent to user terminal.
Meet transmission condition and include but not limited to one or more in following condition:
The transmission time set arrives, and the such as cycle sends；
The the second jamming power parameter value being currently received and last the second jamming power parameter value received it Between the absolute value of difference more than threshold value；
When there being the user terminal of new access, the first power parameter value is sent to this user terminal；
Receive the acquisition request that user terminal sends.
In specific implementation process, the base station of the first community can also little by the second community (i.e. community B) District's mark sends jointly to user terminal with the first jamming power parameter value, make user terminal know this first Jamming power parameter value which community corresponding, thus can be determined which is little when needs adjust interference value District.
In step 504, user terminal is after receiving the first jamming power parameter value, average according to the second community Received power value and the first jamming power parameter value received, determine interference adjusted value, according to interference adjusted value Being adjusted initial interference value, the numerical value after adjusting is as adjacent area interference value.
Concrete, if user terminal is infinitely great at the first jamming power parameter value received, then can be straight Connect order interference adjusted value equal to 0；
If user terminal is not infinitely great at the first jamming power parameter value received, then can be according to determining Neighbor cell mean receiving power value and the first jamming power parameter value, determine interference adjusted value.
Further, initial interference value, after determining interference adjusted value, is adjusted by user terminal, Numerical value after adjusting is as adjacent area interference value.
If the first jamming power parameter value that user terminal receives is changed through log-domain, then need elder generation Be converted to linear value (i.e. )。
Wherein, user terminal can determine initial interference value according to following manner:
User terminal according to be subject in pilot tone RE in Measurement bandwidth W2 in the first community estimated its His area interference and noise power, determines initial interference value.
If the neighbor cell B of user terminal community A send pilot tone RE on do not send any data and Pilot tone (i.e. community B has been RE MUTTING), then the interference that user terminal records does not includes community B's Interference.
Wherein, user terminal can determine neighbor cell mean receiving power value according to following manner:
The user terminal measurement neighbor cell (i.e. community B) pilot tone RE in Measurement bandwidth W3 average Receive power (can be such as certain time), be designated as I1.This reception power can be with 1 transmitting antenna Pilot tone RE calculate, it is also possible to the calculating of pilot tone RE of many transmitting antennas.This reception power is according to little The base station of the second community belonging to district B is calculated to the channel information of user terminal, say, that user Terminal 20 channel information to be estimated, then calculate mean power.
In specific implementation process, if in step a500, the base station of the second community is calculating the flat of antenna Use mode one when all launching power, then user terminal can use formula one to calculate the second community average received Performance number；Or, the channel estimation value making pilot tone RE not sending any signal of antenna p is 0, then User terminal can use formula two to calculate the second community mean receiving power value.
Accordingly, user terminal can determine adjacent area interference value according to formula two.
In specific implementation process, if in step a500, the base station of the second community is calculating the flat of antenna Use mode two when all launching power, then user terminal can use formula one to calculate the second community average received Performance number；Accordingly, user terminal 20 can determine adjacent area interference value according to formula four.
Or user terminal is when calculating with formula one, by the pilot tone not sending any signal of respective antenna Channel estimation value on RE is set to 0；
Accordingly, user terminal can determine adjacent area interference value according to formula three.
In specific implementation process, Measurement bandwidth W1 above-mentioned, Measurement bandwidth W2 and Measurement bandwidth W3 can be whole bandwidth can also be a subband.
If Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are whole bandwidth, user terminal Carry out when determining initial interference value is bandwidth measurement, and the base station of the second community has only to determine one every time Two jamming power parameter values；
If Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are subbands, user terminal Carry out when determining initial interference value is that subband is measured, and the base station of the second community needs to determine multiple second every time Jamming power parameter value, the corresponding subband of the most each second jamming power parameter value, and by multiple second Jamming power parameter value is sent to the base station of the first community, user terminal when determining area interference, every height The interference of band needs to be adjusted with the first jamming power parameter value of respective sub-bands.
In specific implementation process, if Measurement bandwidth W1, Measurement bandwidth W2 and Measurement bandwidth W3 are One subband, in step 502, the base station of the first community can notice when according to sub-band sequence one by one Correspondence notifies the first jamming power parameter value；Accordingly, in step 504, user terminal is according to received The order of one jamming power parameter value is assured that the subband of correspondence.
In step 502, the base station of the first community can also be according to subband and the corresponding relation of subband identities, will The subband identities of the first jamming power parameter value and corresponding subband sends jointly to user terminal；Accordingly, In step 504, user terminal is according to subband and the corresponding relation of subband identities and the subband identities that receives just May determine that the subband that the first jamming power parameter value received together with this subband identities is corresponding.
It should be noted that the embodiment of the present invention determines the mode of the subband that the first jamming power parameter value is corresponding Be not limited to above two, other can determine the mode of subband that the first jamming power parameter value is corresponding with Sample is suitable for the embodiment of the present invention.
Wherein, if the base station of multiple neighbor cells of the first community all delivers to the base station of the first community Two jamming power parameter values, it is right that the base station needs of the first community determine according to each second jamming power parameter value The the first jamming power parameter value (i.e. determining multiple first jamming power parameter value) answered, each is second dry Disturb the corresponding neighbor cell of power parameter value (or subband corresponding to neighbor cell).First is little These the first jamming power parameter values are notified to user terminal by the base station in district.User terminal need to be to each adjacent Community calculates mean receiving power, in the way of using above, each neighbor cell can be calculated average received merit Rate, it would however also be possible to employ formula five or formula six calculate interference value:
The base station of the first community, can be by multiple when notifying the first jamming power parameter value to user terminal One jamming power parameter value notifies simultaneously, or notifies respectively.The cell ID of each community can be with first Jamming power parameter value notifies together or notifies respectively, or user terminal can be according to the rule of agreement in advance The then implicit corresponding relation obtained between first jamming power parameter value and cell ID.
In step 504, user terminal, can be according to the adjacent area interference value determined after determining adjacent area interference value Calculate CQI, and CQI is reported the base station of the first community.
Further, user terminal, can be according to the first community (i.e. community A) when determining initial interference value Pilot tone estimate the base station channel information to user terminal of the first community, for the selection when CQI calculates Pre-coding matrix etc..
Due to user terminal calculate CQI according to the adjacent area interference value determined so as to get the precision of CQI have aobvious Write and improve, and then enable the base station of the first community preferably to realize link circuit self-adapting, improve data transmission Efficiency.
As shown in Figure 6, embodiment of the present invention the second determines that the method that adjacent area is disturbed comprises the following steps:
Step 601, user terminal receive the first jamming power parameter value of the base station from the first community, its In the first jamming power parameter value for determine the second community in the first community user terminal produce Interference.
Step 602, user terminal, according to the first jamming power parameter value, determine adjacent area interference value.
Wherein, step 601 is identical with the step 503 in Fig. 5 and step 504 respectively with step 602, This repeats no more.
As it is shown in fig. 7, the embodiment of the present invention the third determine that the method that adjacent area is disturbed comprises the following steps:
Step 701, the base station of the second community determine transmitting power parameter value.
Step 702, the base station of the second community determine according to launching power parameter value and send the second jamming power Parameter value, receives the base station of the second jamming power parameter value, according to the second jamming power parameter value for instruction Determine the first jamming power parameter value, and this first jamming power parameter value is sent to user terminal, for Family terminal determines adjacent area interference value.
Wherein, the first jamming power parameter value is for determining what the user terminal in adjacent area was produced by the second community Interference.
Wherein, step 701 is identical with step a501 with step 702, does not repeats them here.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory, CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
It can be seen that the base station of the embodiment of the present invention the first community determines the first interference merit from above-described embodiment Rate parameter value, wherein the first jamming power parameter value is for determining that the second community is to the user in this first community The interference that terminal produces；First jamming power parameter value is sent to user terminal by the base station of the first community, uses In indicating user terminal according to the first jamming power parameter value, determine adjacent area interference value.
Because according to the first jamming power parameter value, user terminal determines that adjacent area is disturbed, thus improve interference and estimate The precision of meter；
Further, if the adjacent area interference that user terminal utilizes the embodiment of the present invention to determine determines CQI, also The precision of CQI can be improved, and then enable base station preferably to realize link circuit self-adapting, improve data transmission Efficiency.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (31)

1. the method determining that adjacent area is disturbed, it is characterised in that the method includes:
The base station of the first community receives the second jamming power parameter value that the base station of the second community sends, and described the Two jamming power parameter values are that the base station of described second community determines according to launching power parameter value；
The base station of described first community, according to the described second jamming power parameter value received, determines the first interference Power parameter value, wherein said first jamming power parameter value is used for determining that described second community is first little to this The interference that user terminal in district produces；
Described first jamming power parameter value is sent to described user terminal by the base station of described first community, uses In indicating described user terminal according to described first jamming power parameter value, determine that adjacent area is to described user terminal The interference value produced.
2. the method for claim 1, it is characterised in that the base station of described second community determines to be sent out Penetrate power parameter value to include:
The average emitted power of pilot tone RE in Measurement bandwidth is carried by the base station of described second community divided by measuring The average emitted power of data RE in width, the value obtained is as launching power parameter value；Or
If described second community sends signal, the base of described second community in pilot tone RE of the first community Station determines that transmitting power parameter value is infinitely great.
3. method as claimed in claim 2, it is characterised in that described average emitted power is a sky The average emitted power of line, or the average emitted power sum of many antennas or launch power average.
4. method as claimed in claim 2, it is characterised in that the base station of described second community determines the Two jamming power parameter values include:
The described transmitting power parameter value determined is quantified by the base station of described second community, and will quantify The numerical value arrived is as the second jamming power parameter value.
5. method as claimed in claim 4, it is characterised in that the base station of described second community determines the Two jamming power parameter values include:
The base station of described second community selects one with the transmitting power parameter value determined from numerical value set Close numerical value, and using this numerical value as the second jamming power parameter value；Or
The transmitting power parameter value determined is carried out log-domain conversion, from set of values by the base station of described second community Conjunction selects one with carry out the immediate numerical value of value that log-domain is converted to, and using this numerical value as second Jamming power parameter value.
6. the method for claim 1, it is characterised in that the base station of described first community determines One jamming power parameter value includes:
The base station of described first community is after the signal determining described second community is interference signal, according to receiving Described second jamming power parameter value, determine described first jamming power parameter value；
The base station of described first community, after the signal determining described second community is not interference signal, determines institute It is infinitely great for stating the first jamming power parameter value.
7. the method as described in as arbitrary in claim 1～6, it is characterised in that the base station of described first community Also include after sending described first jamming power parameter value:
Described user terminal is according to the second community mean receiving power value and described first jamming power received Parameter value, determines interference adjusted value；
Initial interference value is adjusted by described user terminal according to described interference adjusted value, the number after adjusting The interference value that described user terminal is produced by value as adjacent area.
8. the method as described in as arbitrary in claim 1～6, it is characterised in that the base station of described first community Send described first jamming power parameter value to include:
The base station of described first community is after determining satisfied transmission condition, by described first jamming power parameter value It is sent to described user terminal.
9. the method determining that adjacent area is disturbed, it is characterised in that the method includes:
User terminal receives the first jamming power parameter value of base station from the first community, and wherein said first Jamming power parameter value is the base station second interference according to the base station transmission of the second community of described first community Power parameter value determines, for determining what the user terminal in this first community was produced by described second community Interference；Described second jamming power parameter value is that the base station of described second community is true according to launching power parameter value Fixed；
Described user terminal, according to described first jamming power parameter value, determines that described user terminal is produced by adjacent area Raw interference value.
10. method as claimed in claim 9, it is characterised in that described user terminal determines that adjacent area is to institute The interference value stating user terminal generation includes:
Described user terminal is according to the second community mean receiving power value and described first jamming power received Parameter value, determines interference adjusted value；
Initial interference value is adjusted by described user terminal according to described interference adjusted value, the number after adjusting The interference value that described user terminal is produced by value as adjacent area.
11. 1 kinds of systems determining that adjacent area is disturbed, it is characterised in that this system includes:
The base station of the second community, for determining the second jamming power parameter value according to transmitting power parameter value, and Described second jamming power parameter value is sent to the base station of described first community；
The base station of described first community, for receiving described second interference that the base station of described second community sends Power parameter value, determines according to the described second jamming power parameter value received and sends the first jamming power ginseng Numerical value；
User terminal, for according to described first jamming power parameter value, determines that adjacent area is to described user terminal The interference value produced；
Wherein, described first jamming power parameter value is for determining that the second community is to the user in this first community The interference that terminal produces.
12. systems as claimed in claim 11, it is characterised in that the base station of described second community is concrete For:
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth All launching power, the value obtained is as launching power parameter value；Or
If described second community sends signal in pilot tone RE of the first community, determine transmitting power parameter Value is infinitely great.
13. systems as claimed in claim 11, it is characterised in that the base station of described second community is concrete For:
The described transmitting power parameter value determined is quantified, and numerical value quantization obtained is dry as second Disturb power parameter value.
14. systems as claimed in claim 13, it is characterised in that the base station of described second community is concrete For:
Selection one and the immediate numerical value of transmitting power parameter value determined from numerical value set, and by this number Value is as the second jamming power parameter value；Or
The transmitting power parameter value determined is carried out log-domain conversion, from numerical value set select one with carry out The immediate numerical value of value that log-domain is converted to, and using this numerical value as the second jamming power parameter value.
15. systems as claimed in claim 11, it is characterised in that the base station of described first community is concrete For:
After the signal determining described second community is interference signal, according to described second jamming power received Parameter value, determines described first jamming power parameter value, is not interference at the signal determining described second community After signal, determine that described first jamming power parameter value is infinitely great.
16. as arbitrary in claim 11～15 as described in system, it is characterised in that described user terminal have Body is used for:
According to the second community mean receiving power value and the described first jamming power parameter value received, determine dry Disturb adjusted value, according to described interference adjusted value, initial interference value be adjusted, will adjust after numerical value as The interference value that described user terminal is produced by adjacent area.
17. as arbitrary in claim 11～15 as described in system, it is characterised in that described first community Base station specifically for:
After determining satisfied transmission condition, described first jamming power parameter value is sent to described user eventually End.
18. 1 kinds of base stations, it is characterised in that this base station includes:
Parameter value determines module, and the second jamming power parameter value sent for the base station according to the second community is true Fixed first jamming power parameter value, wherein said first jamming power parameter value is used for determining described second community The interference producing the user terminal in this first community, described second jamming power parameter value is described second The base station of community is according to launching what power parameter value determined；
Parameter value sending module, for described first jamming power parameter value is sent to described user terminal, For indicating described user terminal according to described first jamming power parameter value, determine that adjacent area is to described user eventually The interference value that end produces.
19. base stations as claimed in claim 18, it is characterised in that described parameter value determines that module is concrete For:
The signal determining described second community be interference signal after, according to receive from belonging to the second community The second jamming power parameter value of base station, determine described first jamming power parameter value；
After the signal determining described second community is not interference signal, determine described first jamming power parameter Value is infinitely great.
20. base stations as described in claim 18 or 19, it is characterised in that described parameter value sending module Specifically for:
After determining satisfied transmission condition, described first jamming power parameter value is sent to described user eventually End.
21. base stations as claimed in claim 18, it is characterised in that described base station also includes:
Power determination module, is used for determining transmitting power parameter value, determines according to described transmitting power parameter value Second jamming power parameter value, and send described second jamming power parameter value.
22. base stations as claimed in claim 21, it is characterised in that described power determination module is specifically used In:
By the average emitted power of pilot tone RE in Measurement bandwidth putting down divided by data RE in Measurement bandwidth All launching power, the value obtained is as launching power parameter value；Or
If neighbor cell sends signal in pilot tone RE of the first community, determine that transmitting power parameter value is Infinitely great.
23. base stations as claimed in claim 21, it is characterised in that described power determination module is specifically used In:
The described transmitting power parameter value determined is quantified, and numerical value quantization obtained is dry as second Disturb power parameter value.
24. base stations as claimed in claim 21, it is characterised in that described power determination module is specifically used In:
Selection one and the immediate numerical value of transmitting power parameter value determined from numerical value set, and by this number Value is as the second jamming power parameter value；Or
The transmitting power parameter value determined is carried out log-domain conversion, from numerical value set select one with carry out The immediate numerical value of value that log-domain is converted to, and using this numerical value as the second jamming power parameter value.
25. 1 kinds of user terminals, it is characterised in that this user terminal includes:
Parameter value receiver module, for receiving the first jamming power parameter value of the base station from the first community, Wherein said first jamming power parameter value is for determining that the second community is to the user terminal in this first community The interference produced, is the base station second interference according to the base station from described second community of described first community Power parameter value determines, described second jamming power parameter value is that the base station of described second community is according to transmitting Power parameter value determines；
Interference value determines module, for according to described first jamming power parameter value, determines that adjacent area is to described use The interference value that family terminal produces.
26. user terminals as claimed in claim 25, it is characterised in that described interference value determines module Specifically for:
According to neighbor cell mean receiving power value and the described first jamming power parameter value received, determine dry Disturb adjusted value, according to described interference adjusted value, initial interference value be adjusted, will adjust after numerical value as The interference value that described user terminal is produced by adjacent area.
27. 1 kinds of methods determining that adjacent area is disturbed, it is characterised in that the method includes:
The base station of the second community determines transmitting power parameter value；
The base station of described second community determines according to described transmitting power parameter value and sends the second jamming power Parameter value, receives the base station of described second jamming power parameter value for instruction, according to described second interference merit Rate parameter value determines the first jamming power parameter value, and this first jamming power parameter value is sent to user eventually End, determines, for described user terminal, the interference value that described user terminal is produced by adjacent area；
Wherein said first jamming power parameter value is for determining that the user terminal in adjacent area is produced by the second community Raw interference.
28. methods as claimed in claim 27, it is characterised in that the base station of described second community determines Transmitting power parameter value includes:
The average emitted power of pilot tone RE in Measurement bandwidth is carried by the base station of described second community divided by measuring The average emitted power of data RE in width, the value obtained is as launching power parameter value；Or
If described second community sends signal, the base of described second community in pilot tone RE of the first community Station determines that transmitting power parameter value is infinitely great.
29. methods as claimed in claim 28, it is characterised in that described average emitted power is one The average emitted power of antenna, or the average emitted power sum of many antennas or launch power average.
30. methods as claimed in claim 28, it is characterised in that the base station of described second community determines Second jamming power parameter value includes:
The described transmitting power parameter value determined is quantified by the base station of described second community, and will quantify The numerical value arrived is as the second jamming power parameter value.
31. methods as claimed in claim 30, it is characterised in that the base station of described second community determines Second jamming power parameter value includes:
The base station of described second community selects one with the transmitting power parameter value determined from numerical value set Close numerical value, and using this numerical value as the second jamming power parameter value；Or
The transmitting power parameter value determined is carried out log-domain conversion, from set of values by the base station of described second community Conjunction selects one with carry out the immediate numerical value of value that log-domain is converted to, and using this numerical value as second Jamming power parameter value.
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