CN102158910B

CN102158910B - Method, system and equipment for carrying out interference coordination

Info

Publication number: CN102158910B
Application number: CN2011100936963A
Authority: CN
Inventors: 徐婧; 潘学明; 沈祖康; 宋月霞
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2013-11-20
Anticipated expiration: 2031-04-14
Also published as: WO2012139441A1; CN102158910A

Abstract

The embodiment of the invention relates to the technical field of wireless communication, and in particular relates to a method, system and equipment for carrying out interference coordination, wherein the method, system and equipment provided by the invention are used for lowering time slot interference under the scene that the requirement ratio of the uplink service to the downlink service is dynamically changed. The method in the embodiment of the invention comprises: first network side equipment determines interference coordination information, and transmits the interference coordination information to second network side equipment around the first network side equipment to inform the second network side equipment of performing interference coordination on the interference coordination information. As the interference coordination information for interference coordination can be informed to the second network side equipment, the time slot interference caused by different uplink and downlink configurations can be lowered under the scene that the requirement ratio of the uplink service to the downlink service is dynamic changed, thereby further improving the system stability and performance.

Description

A kind of method, system and equipment that carries out interference coordination

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment that carries out interference coordination.

Background technology

Basic duplex mode for the cellular system employing, TDD (Time division duplex, time division duplex) pattern refers to that uplink downlink uses same working band, on the different time intervals, carry out the transmission of uplink and downlink signals, protection interval (Guard Period, GP) is arranged between up-downgoing; FDD (Frequency division duplex; Frequency Division Duplexing (FDD)) pattern refers to that uplink downlink uses different working bands; can when same, be engraved in the transmission of carrying out uplink and downlink signals on different frequency carriers, protection bandwidth (Guard Band, GB) is arranged between up-downgoing.

The frame structure of LTE (Long Term Evolution, Long Term Evolution) TDD system is slightly more complex, and as shown in Figure 1A, a radio frames length is 10ms, comprises special subframe and conventional subframe two classes totally 10 subframes, and each subframe is 1ms.special subframe is divided into 3 subframe: DwPTS (Downlink Pilot Time Slot, the descending pilot frequency subframe) be used to transmitting PSS (Primary Synchronization Signal, master sync signal), PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), PHICH (Physical HARQ Indication Channel, physical mixed automatic repeat request indicating channel), PCFICH (Physical Control Format Indication Channel, Physical Control Format Indicator Channel), PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) etc., GP is for the protection interval between descending and up), UpPTS (Uplink Pilot Time Slot, the ascending pilot frequency subframe) for transmitting SRS (Sounding Reference Signal, survey and to use reference signal), PRACH (Physical Random Access Channel, Physical Random Access Channel) etc.Conventional subframe comprises sub-frame of uplink and descending sub frame, be used to transmitting uplink/downlink control channel and business datum etc.Wherein, in a radio frames, can configure two special subframes (being positioned at subframe 1 and 6), also can configure a special subframe (being positioned at subframe 1).DwPTS subframe in subframe 0 and subframe 5 and special subframe is always as downlink transfer, and the UpPTS subframe in subframe 2 and special subframe is always for uplink, and other subframes can be configured to as uplink or downlink transfer according to needs.

In the TDD system, identical frequency resource is used in the uplink and downlink transmission, on different subframes, transmits uplink/downlink signals.In common TDD system, comprise TD-SCDMA (TD SDMA) system of 3G and the TD-LTE system of 4G, the division of uplink and downlink subframe is static or semi-static, and common way is according to cell type and business proportion roughly, determine the ascending-descending subframes ratio cut partition and remain unchanged in network planning process.This is comparatively simple way under the background of the large covering of macrocell, and also comparatively effective.And along with technical development, increasing Microcell (Pico cell), the low power base station such as Home eNodeB (Home NodeB) are deployed be used to local little covering is provided, in this class residential quarter, number of users is less, and the customer service changes in demand is larger, so there is situation about dynamically changing in the up-downgoing business proportion demand of residential quarter.

In real system, if different residential quarters is provided with different ascending-descending subframes configurations, can cause the cross time-slot of neighbor cell to disturb.Macrocell is on the time slot that sends downstream signal, femto cell (Femto cell) receives for upward signal, between two residential quarters, occur: base-station, base-station disturbs, the femto base station directly receives the downstream signal of Macro base station, to have a strong impact on the quality that the femto base station receives L-UE (Local UE, local UE) upward signal.The neighbor cell here can be the residential quarter (shown in Figure 1B) of the geographically adjacent same TDD carrier wave of use, or the overlapping or residential quarter (shown in Fig. 1 C) of using adjacent TDD carrier wave geographically.But for up-downgoing business proportion demand, carry out, under the scene that dynamically changes, also not solving the scheme that cross time-slot disturbs at present.

In sum, for up-downgoing business proportion demand, carry out, under the scene that dynamically changes, also not solving the scheme of time slot interference at present.

Summary of the invention

The embodiment of the present invention provides a kind of method, system and equipment that carries out interference coordination, in order to for up-downgoing business proportion demand, to carry out, under the scene that dynamically changes, reducing time slot interference.

A kind of method of carrying out interference coordination that the embodiment of the present invention provides comprises:

The first network side apparatus is determined interference coordination information;

Described first network side apparatus sends interference coordination information to being in first network side apparatus second network side apparatus on every side, be used to notifying described second network side apparatus, according to described interference coordination information, carries out interference coordination.

The another kind that the embodiment of the present invention provides carries out the method for interference coordination, comprising:

The second network side apparatus receives the interference coordination information that the first network side apparatus is determined, wherein the second network side apparatus is to be in first network side apparatus network equipment on every side;

Described second network side apparatus is adjusted the downlink transmission power value according to the interference coordination information of receiving.

A kind of first network side apparatus that carries out interference coordination that the embodiment of the present invention provides comprises:

The information determination module, for determining interference coordination information;

Sending module, for to being in first network side apparatus second network side apparatus on every side, sending interference coordination information, carry out interference coordination be used to notifying described second network side apparatus according to described interference coordination information.

A kind of second network side apparatus that carries out interference coordination that the embodiment of the present invention provides comprises:

Receiver module, the interference coordination information of determining be used to receiving the first network side apparatus, wherein the second network side apparatus is to be in first network side apparatus network equipment on every side;

Processing module, adjust the downlink transmission power value for the interference coordination information according to receiving.

A kind of system of carrying out interference coordination that the embodiment of the present invention provides comprises:

The first network side apparatus, for determining interference coordination information, send interference coordination information to being in first network side second network side apparatus on every side;

The second network side apparatus, adjust the downlink transmission power value for the interference coordination information according to receiving.

Owing to can being used for carrying out to second network side apparatus notice the interference coordination information of interference coordination, thereby in up-downgoing business proportion demand, carry out, under the scene that dynamically changes, reducing the time slot interference that the uplink-downlink configuration difference causes; The stability of a system and performance have further been improved.

The accompanying drawing explanation

Figure 1A is TD-LTE system frame structure schematic diagram;

Figure 1B is that while using identical TDD carrier wave, cross time-slot disturbs schematic diagram;

Fig. 1 C is that while using adjacent TDD carrier wave, cross time-slot disturbs schematic diagram;

Fig. 2 is the system configuration schematic diagram that the embodiment of the present invention is carried out interference coordination;

Fig. 3 is embodiment of the present invention first network side apparatus structural representation;

Fig. 4 is embodiment of the present invention second network side apparatus structural representation;

Fig. 5 is the method flow schematic diagram that embodiment of the present invention the first is carried out interference coordination;

Fig. 6 is the method flow schematic diagram that embodiment of the present invention the second carries out interference coordination.

Embodiment

Embodiment of the present invention first network side apparatus sends interference coordination information to being in first network side apparatus second network side apparatus on every side, be used to notifying the second network side apparatus, according to interference coordination information, carries out interference coordination.Owing to can being used for carrying out to second network side apparatus notice the interference coordination information of interference coordination, thereby in up-downgoing business proportion demand, carry out, under the scene that dynamically changes, reducing the time slot interference that the uplink-downlink configuration difference causes.

Wherein, the embodiment of the present invention can be applied to (such as the TD-LTE system) in the TDD system, also can be applied to other needs dynamically to adjust in the system of subframe uplink-downlink configuration, for example TD-SCDMA system and follow-up evolution system thereof, WiMAX (Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) system and follow-up evolution system thereof etc.

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

In declarative procedure below, first from the cooperation of two network equipments, implement to describe, finally from the enforcement of two network equipments, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when two network equipments are separately implemented, also solved respectively two existing problems of network equipment, when just the two is combined with, can obtain better technique effect.。

As shown in Figure 2, the embodiment of the present invention system of carrying out interference coordination comprises: first network side apparatus 10 and second network side apparatus 20.

First network side apparatus 10, for determining interference coordination information, send interference coordination information to being in first network side 10 second network side apparatus 20 (being the interference that first network side apparatus 10 is subject to second network side apparatus 20) on every side.

Such as first network side apparatus 10 can determine to disturb harmony messages in carrying out the residential quarter uplink-downlink configuration; Can also after receiving high-rise notice, determine to disturb harmony messages.

Second network side apparatus 20, be used to receiving interference coordination information, adjust the downlink transmission power value according to the interference coordination information of receiving.

Wherein, being in first network side apparatus 10 second network side apparatus 20 on every side can be to be in first network side apparatus all-network side apparatus on every side; Can be also to be in around the first network side apparatus and to first network side apparatus 10 to produce the network equipment that disturbs.

First network side apparatus 10 can adopt following manner to determine the network equipment that is disturbed by the first network side apparatus:

First network side apparatus 10 is measured the uplink-downlink configuration information that obtains the ambient network side apparatus, and then judgement can cause the network equipment of cross time-slot interference; Or

The uplink-downlink configuration information of ambient network equipment signaling notice first network side apparatus 10 ambient network equipment, and then judgement can cause the network equipment of cross time-slot interference; Or

First network side apparatus 10 is by the uplink-downlink configuration of oneself or pre-configured signaling ambient network side apparatus, and the ambient network side apparatus determines whether that according to this information can form cross time-slot disturbs, and whether feedback is subjected to the information of loud, high-pitched sound interference.

It should be noted that, the embodiment of the present invention is not limited to aforesaid way, and other modes that can determine the network equipment that is disturbed by the first network side apparatus all are suitable for the embodiment of the present invention.

Preferably, before first network side apparatus 10 sends interference coordination information to second network side apparatus 20, can first measure the peripheral base station deployment scenario, such as determining effective interference base station number and RSRP (Reference Signal Receiving Power separately, Reference Signal Received Power) value, and/or with peripheral base station interacting base station configuration information, wherein configuration information comprises but is not limited at least a in following message: transmitting power, resource allocation information.

Wherein, when first network side apparatus 10 need to re-start the uplink-downlink configuration of local area according to the interference effect of business demand or other residential quarter or other reason, this configuration may bring the inter base station interference problem, as adjacent area subframe n, it is descending sub frame, when first network side apparatus 10 configuration subframe n were sub-frame of uplink, adjacent area can disturb local area to receive data.First network side apparatus 10 needs to consider that interference effect limits the configuration of this subframe or the descending power configuration of coordinates interference adjacent area.

Preferably, first network side apparatus 10 can pass through air interface, X2 interface, S1 interface and the terminal a kind of mode in forwarding and sends the interference coordination information to second network side apparatus 20.

The terminal pass-through mode can be that first network side apparatus 10 sends to terminal by interference coordination information, by terminal, is transmitted to second network side apparatus 20.

It should be noted that, the embodiment of the present invention is not limited to the mode of above-mentioned transmission interference coordination information, and other modes that can send interference coordination information all are suitable for the embodiment of the present invention.

Preferably, when 10 pairs of ascending-descending subframes of cell of first network side apparatus are configured, if the interference value that the interference value that the subframe that detects is subject to can bear higher than first network side apparatus 10 is descending sub frame or the transmitted power of not dispatching or improve dispatched users on this subframe by this sub-frame configuration; If the interference value that the interference value that the subframe that detects is subject to can not bear higher than first network side apparatus 10 is sub-frame of uplink by this sub-frame configuration.

In force, first network side apparatus 10 can be monitored part or all of needs and is configured to up subframe.

Preferably, if second network side apparatus 20 is adjusted the downlink transmission power value according to the interference coordination information of receiving, second network side apparatus 20 can be adjusted to first network side apparatus 10 is produced the downlink transmission power value of the descending sub frame that disturbs or adjusts the downlink transmission power value of whole descending sub frames

Interference coordination information can be the information how requirement second network side apparatus is adjusted.Preferably, interference coordination information can be a kind of in following message: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment.Below be introduced respectively.

Mode one, interference coordination information are the maximum transmission power threshold values.The maximum transmission power threshold value makes interference level in first network side apparatus 10 ability to bear scopes.The maximum transmission power threshold value can be used to limiting the transmitting power of second network side apparatus 20 all descending sub frames, also can be only be used to limiting second network side apparatus 20 to the influential descending sub frame in other residential quarter.

Can to be network equipment determine according to actual conditions the ability to bear of first network side apparatus 10, or the equipment configuration of dispatching from the factory, or standard convention etc.

Concrete, first network side apparatus 10 is according to the facility information of first network side apparatus 10 and/or the facility information of second network side apparatus 20, determine to allow the maximum transmission power threshold value of second network side apparatus 20, and using the maximum transmission power threshold value as interference coordination information;

Wherein, the maximum transmission power threshold value for the transmitting power of all descending sub frames that limits second network side apparatus 20 or second network side apparatus to the noisy descending sub frame of adjacent cell.

In enforcement, the facility information of first network side apparatus 10 includes but not limited at least a in following message:

Spectrum allocation may information, resource scheduling information and interference ability to bear value.

The facility information of second network side apparatus 20 includes but not limited at least a in following message:

Path loss values between second network side apparatus 20 and first network side apparatus 10, Reference Signal Received Power value, spectrum allocation may information and resource scheduling information.

Wherein, first network side apparatus 10 determines that the mode of the facility information of second network side apparatus 20 has a lot, such as measurement; Signaling.

The facility information of the facility information of first network side apparatus 10 and second network side apparatus 20 can be to measure to obtain, or signaling, or standard convention.

Preferably, first network side apparatus 10 can be determined the maximum transmission power threshold value according to formula one or formula two:

P _{Max_tx}=I _{A → B}+ ACIR _Bs-bs+ max (pathloss, MCL) ... ... formula one;

P _{Max_tx}=I _{A → B}+ max (pathloss, MCL) ... ... formula two;

Wherein, P _{Max_tx}It is the maximum transmission power threshold value; I _{A → B}It is the interference threshold value of the first network side apparatus second network side apparatus that can bear; ACLR wherein _AThe Adjacent Channel Leakage Power Ratio value (adjacent channel leakage power radio) of second network side apparatus 20, ACS _BIt is the adjacentchannel selectivity value (adjacent channel selectivity) of first network side apparatus 10; Pathloss is path loss values; MCL is the minimum coupling loss value.

Preferably, if I _{A → B}It is the interference threshold value that second network side apparatus 20 that first network side apparatus 10 can bear disturbs, this value can be the agreement agreement, or equipment Default Value, or calculate acquisition (such as the received power value of useful signal is conciliate the pitch limit value, calculating the interference threshold value that can bear) according to actual conditions.

Preferably, first network side apparatus 10, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Wherein, I _{A → B}Be not more than total interference power values that the first network side apparatus can bear.

Wherein, first network side apparatus 10, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Mode have a variety ofly, below enumerate several.

(1), first network side apparatus 10 total interference power values that first network side apparatus 10 can be born multiply by respectively the weighting parameters of each second network side apparatus 20 correspondence, obtains the I of second network side apparatus 20 correspondences _Ai->B.

Such as determining the weighting parameters of each second network side apparatus 20 correspondence according to the disturbance regime of 20 pairs of first network side apparatus 10 of second network side apparatus, for example disturb larger weighting parameters larger;

Then the total interference power values that first network side apparatus 10 can be born multiply by respectively the weighting parameters of each second network side apparatus 20 correspondence, obtains respectively the I of each second network side apparatus 20 correspondence _Ai->B.Be the I of each second network side apparatus 20 correspondence of this mode _Ai->BLikely identical also likely different.

(2), first network side apparatus 10 total interference power values that first network side apparatus 10 can be born is divided by the quantity of second network side apparatus, obtains the I of second network side apparatus 20 correspondences _Ai->B.Be the I of each second network side apparatus 20 correspondence of this mode _Ai->BAll identical.

Preferably, when interference that second network side apparatus 20 forms when first network side apparatus 10 receives outside bandwidth, ACIR _Bs-bsBe 0;

When interference that second network side apparatus 20 forms, when first network side apparatus 10 receives outside bandwidth, according at least a definite ACLR and the ACS in following manner, and determine ACIR according to ACLR and ACS _Bs-bs

Wherein, the mode of determining ACLR and ACS comprises:

Determine based on experience value ACLR and/or ACS;

According to reference value, determine ACLR and/or ACS;

Determine ACLR and/or ACS;

By according to high level, by the notice of signaling, determining ACS;

According to the definite ACLR of self configuration.

Such as adopting wherein a kind of mode to determine ACS, adopt another kind of mode to determine ACLR.

Preferably, when determining a plurality of ACLR, according to frequency allocation situation or scheduling of resource situation, from a plurality of ACLR, selecting an ACLR;

When determining a plurality of ACS, according to frequency allocation situation or scheduling of resource situation, from a plurality of ACS, selecting an ACS.

If determine ACLR and/or ACS according to reference value, the corresponding relation of frequency allocation situation and reference value and/or the corresponding relation of scheduling of resource situation and reference value be can preset, self frequency allocation situation or reference value corresponding to scheduling of resource situation then according to corresponding relation, just can be determined.The corresponding relation of the corresponding relation of wherein, frequency allocation situation and reference value and/or scheduling of resource situation and reference value can be referring to 3GPP TS 36.101 or 3GPP TS 36.104 agreements.

If determine based on experience value ACLR and/or ACS, the corresponding relation of frequency allocation situation and empirical value and/or the corresponding relation of scheduling of resource situation and empirical value be can also preset, self frequency allocation situation or reference value corresponding to scheduling of resource situation then according to corresponding relation, just can be determined.

Preferably, pathloss measures, or Signalling exchange, or both are in conjunction with acquisition.This value has comprised penetration loss, the factors such as antenna gain.

MCL can adopt empirical value (emulation acquisition), or the equipment configuration of dispatching from the factory, or the agreement agreement.

Mode two, interference coordination information are to disturb the ability to bear threshold value.

Concrete, first network side apparatus 10 is determined I _{A → B}, and by I _{A → B}As interference coordination information;

Wherein, I _{A → B}It is the threshold value that the first network side apparatus second network side apparatus that can bear disturbs.

If second network side apparatus 20 is adjusted the downlink transmission power value according to the interference coordination information of receiving, the second network side apparatus can need determine the downlink transmission power value of adjusting according to formula three or formula four:

P _Tx=I _{DL → UL}+ max (pathloss, MCL) ... ... formula three;

P _Tx=I _{DL → UL}+ ACIR _Bs-bs+ max (pathloss, MCL) ... ... formula four;

Wherein, P _TxTo need the downlink transmission power value of adjusting; I _{DL → UL}It is minimum interference threshold value in the interference threshold value of the interference threshold value of the first network side apparatus 10 received or a plurality of disturbed network equipment notice received;

ACLR wherein _AThe Adjacent Channel Leakage Power Ratio value of second network side apparatus 20, ACS _BIt is the adjacentchannel selectivity value of first network side apparatus 10; Pathloss is path loss values; MCL is the minimum coupling loss value.

Wherein, first network side apparatus 10, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Mode have a variety ofly, specifically can, referring to mode one, not repeat them here.

Wherein, the mode of determining ACLR and ACS comprises:

According to frequency allocation situation or scheduling of resource situation, determine ACLR and/or ACS;

By high level, pass through signaling ACS;

According to self configuration acquisition ACLR.

Mode three, interference coordination information are power adjustment.For mode three, preferably, being in first network side apparatus 10 second network side apparatus 20 on every side is that first network side apparatus 10 is produced to the network equipment that disturbs.

If power adjustment greater than 0, represents that power adjusts upward; If power adjustment less than 0, represents power and adjusts downwards; If power adjustment equals 0, represent that power is without adjustment.

Take second network side apparatus 20, be below first network side apparatus 10 to be produced to the network equipment that disturbs describe as example.

Concrete, first network side apparatus 10 is determined power adjustment, and using power adjustment as interference coordination information.

Wherein, first network side apparatus 10 determines that the mode of power adjustment has a lot, below enumerates several.

(1), first network side apparatus 10 is determined power adjustment according to formula five or formula six:

P _A=I _{A → B}-RSRP _A... ... formula five;

P _A=min (I _{A → B}-RSRP _A, 0) ... ... formula six;

Wherein, P _AIt is value and power reference; I _{A → B}It is the threshold value that the first network side apparatus second network side apparatus that can bear disturbs; RSRP _AIt is the Reference Signal Received Power value of the second network measurement equipment that measures of first network side apparatus;

First network side apparatus 10 is determined power adjustment according to value and power reference.

Preferably, first network side apparatus 10 is from the value and power reference of each second network side apparatus 20 correspondence of determining, selecting minimum value as for determining the value and power reference of power adjustment, and according to value and power reference, determines the power adjustment of each second network side apparatus 20 correspondence; Or

First network side apparatus 10 is averaged as the value and power reference for definite power adjustment from the value and power reference of each definite second network side apparatus 20 correspondence, and according to value and power reference, determines the power adjustment of each second network side apparatus 20 correspondence.

Preferably, first network side apparatus 10 can also be by a kind of definite power adjustment in following manner.

The power adjustment of the second network side apparatus 20 that mode A1, first network side apparatus 10 can disturb value and power reference as corresponding each generation.

Mode A2, first network side apparatus 10 according to value and power reference from the power adjustment set, selecting power adjustment.

Preferably, if the interference value that first network side apparatus 10 can bear is greater than the interference value that measures, from power adjustment set, selecting one near value and power reference and be not more than 0 numerical value as power adjustment, if the interference value that first network side apparatus 10 can bear is not more than the interference value that measures, from power adjustment set, select one near value and power reference and greater than 0 numerical value as power adjustment.

Suppose that power adjustment set is p ∈ Δ p={10dBm, 5dBm, 1dBm ,-1dBm}, suppose that value and power reference is 8, can select 10dBm as power adjustment.

Specifically can determine as required the value in power adjustment set.

Mode A3, first network side apparatus 10 are adjusted the step value set and are selected power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

Preferably, first network side apparatus 10 is adjusted the corresponding relation of step value in the step value set according to predefined value range and power, determine step value corresponding to scope that value and power reference is affiliated.Accordingly, second network side apparatus 20 is only adjusted a step sizes at every turn.

Specifically can determine as required value and corresponding relation in power adjustment set of steps.

(2), first network side apparatus 10 is determined value and power reference according to formula seven or formula eight, and is determined power adjustment according to value and power reference;

P _A=I _{A → B}-I _{A_measurement}... ... formula seven;

P _A=min (I _{A → B}-I _{A_measurement}, 0) ... ... formula eight;

Wherein, I _{A_measurement}It is the second network side apparatus interference value that the first network side apparatus measures; I _{A → B}It is the threshold value that the first network side apparatus second network side apparatus that can bear disturbs.

Preferably, first network side apparatus 10 can be by a kind of definite power adjustment in following manner.

The power adjustment of the second network side apparatus 20 that mode B1, first network side apparatus 10 can disturb value and power reference as corresponding each generation.

Mode B2, first network side apparatus 10 according to value and power reference from the power adjustment set, selecting power adjustment.

Specifically can determine as required the value in power adjustment set.

Mode B3, first network side apparatus 10 are adjusted the step value set and are selected power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

Preferably, first network side apparatus 10 is adjusted the corresponding relation of step value in the step value set according to predefined value range and power, determine step value corresponding to scope that value and power reference is affiliated.

(3), first network side apparatus 10 total interference value I that will measure _mTotal interference power values I that can bear with the first network side apparatus _AcceptIt is poor to do, and according to difference, determines power adjustment total value; According to power, adjust total value, determine that each produces the power adjustment of the second network side apparatus 20 that disturbs.

Preferably, first network side apparatus 10 can obtain value and power reference divided by producing second network side apparatus 20 quantity of disturbing by difference, according to value and power reference, determines that each produces the power adjustment of the second network side apparatus 20 that disturbs; Or

First network side apparatus 10 is determined the weights of each second network side apparatus 20, and the weights that difference multiply by respectively each second network side apparatus 20 are obtained to value and power reference, according to value and power reference, determine that each produces the power adjustment of the second network side apparatus 20 that disturbs.

The power adjustment of mode C1, first network side apparatus 10 disturb power adjustment as corresponding each generation second network side apparatus.

Such as adopting difference divided by producing second network side apparatus 20 quantity of disturbing, obtain value and power reference, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus 20 that disturbs, first network side apparatus 10 produces the power adjustment of the second network side apparatus 20 that disturbs using power adjustment as each.Be that each power adjustment that produces the second network side apparatus that disturbs is same.

Such as employing obtains value and power reference by the weights that difference multiply by respectively each second network side apparatus, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus 20 that disturbs, first network side apparatus 10 produces power adjustment the power adjustment of the second network side apparatus 20 that disturbs as correspondence.Be that each power adjustment that produces the second network side apparatus that disturbs is independently.

Mode C2, first network side apparatus 10 according to power adjustment from the power adjustment set, selecting power adjustment.

If adopt difference divided by producing second network side apparatus 20 quantity of disturbing, obtain value and power reference, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus 20 that disturbs, 10 needs of first network side apparatus are selected one;

If adopt the weights that difference be multiply by respectively to each second network side apparatus, obtain value and power reference, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus that disturbs, first network side apparatus 10 need to be selected once according to the value of each second network side apparatus 20 correspondence.

Mode C3, first network side apparatus 10 are adjusted the step value set and are selected power to adjust step value from power according to power adjustment, and the power that will select is adjusted step value as power adjustment.

If adopt, difference is obtained to value and power reference divided by producing second network side apparatus 20 quantity of disturbing, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus 20 that disturbs, 10 needs of first network side apparatus are selected one;

If employing obtains value and power reference by the weights that difference multiply by respectively each second network side apparatus, according to value and power reference, determine that each produces the mode of the power adjustment of the second network side apparatus that disturbs, first network side apparatus 10 need to be selected once according to the value of each second network side apparatus 20 correspondence.

Preferably, for mode three, first network side apparatus 10 can be according to the time of setting, and the cycle sends interference coordination information.The concrete time can be set as required.

In force, second network side apparatus 20 can have a plurality of, if a plurality of second network side apparatus 20 are arranged, a kind of interference coordination information of respectively determining each second network side apparatus 20 of first network side apparatus 10 in the manner described above, and send to corresponding second network side apparatus 20.

Wherein, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.

Based on same inventive concept, the method that two kinds of network equipments also is provided in the embodiment of the present invention and has carried out interference coordination, because the principle that these equipment and method are dealt with problems is similar to the system of carrying out interference coordination, therefore the enforcement of these equipment and method can, referring to the enforcement of system, repeat part and repeat no more.

As shown in Figure 3, embodiment of the present invention first network side apparatus comprises: information determination module 100 and sending module 110.

Information determination module 100, for determining interference coordination information.

Sending module 110, for to being in first network side second network side apparatus on every side, sending the interference coordination information that information determination module 100 is determined, carry out interference coordination be used to notifying the second network side apparatus according to interference coordination information.

Preferably, information determination module 100 is according to the facility information of first network side apparatus and/or the facility information of second network side apparatus, determine to allow the maximum transmission power threshold value of second network side apparatus, and using the maximum transmission power threshold value as interference coordination information;

Wherein, the maximum transmission power threshold value for the transmitting power of all descending sub frames that limits the second network side apparatus or second network side apparatus to the noisy descending sub frame of adjacent cell.

Preferably, information determination module 100 is determined the maximum transmission power threshold value according to following formula:

P _{Max_tx}=I _{A → B}+ ACIR _Bs-bs+ max (pathloss, MCL); Or

P _{max_tx}＝I _A→B+max(pathloss，MCL)；

Wherein, P _{Max_tx}It is the maximum transmission power threshold value; I _{A → B}It is the interference threshold value of the first network side apparatus second network side apparatus that can bear;

ACLR wherein _AThe Adjacent Channel Leakage Power Ratio value of second network side apparatus, ACS _BIt is the adjacentchannel selectivity value of first network side apparatus; Pathloss is path loss values; MCL is the minimum coupling loss value.

Preferably, information determination module 100 is determined I _{A → B}, and by I _{A → B}As interference coordination information;

Preferably, the information determination module specifically for:

Determine power adjustment, and using power adjustment as interference coordination information.

Preferably, information determination module 100 is determined difference according to following formula, and determines power adjustment according to value and power reference;

P _A=I _{A → B}-RSRP _AOr P _A=min (I _{A → B}-RSRP _A, 0);

Wherein, P _AIt is value and power reference; I _{A → B}It is the threshold value that the first network side apparatus second network side apparatus that can bear disturbs; RSRP _AIt is the Reference Signal Received Power value of the second network measurement equipment that measures of first network side apparatus.

Preferably, information determination module 100 value and power reference, and determine power adjustment according to value and power reference;

P _A=I _{A → B}-I _{A_measurement}Or P _A=min (I _{A → B}-I _{A_measurement}, 0);

Preferably, information determination module 100 is from value and power reference corresponding to each second network side apparatus of determining, selecting minimum value as for determining the value and power reference of power adjustment, and determines according to value and power reference the power adjustment that each second network side apparatus is corresponding; Or be averaged as the value and power reference for definite power adjustment from value and power reference corresponding to each second network side apparatus of determining, and determine according to value and power reference the power adjustment that each second network side apparatus is corresponding.

Preferably, information determination module 100 total interference value I that will measure _mTotal interference power values I that can bear with the first network side apparatus _AcceptIt is poor to do, and according to difference, determines power adjustment total value; According to power, adjust total value, determine that each produces the power adjustment of the second network side apparatus that disturbs.

Preferably, information determination module 100 obtains value and power reference by difference divided by producing the second network side apparatus quantity of disturbing, and according to value and power reference, determines that each produces the power adjustment of the second network side apparatus that disturbs; Or determine the weights of each second network side apparatus, and the weights that difference multiply by respectively each second network side apparatus are obtained to value and power reference, according to value and power reference, determine that each produces the power adjustment of the second network side apparatus that disturbs.

Preferably, information determination module 100 is using the power adjustment of value and power reference as the second network side apparatus of corresponding each generation interference; Or according to value and power reference from the power adjustment set, selecting power adjustment; Or adjust the step value set and select power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

Preferably, 110 cycles of sending module send interference coordination information.

Preferably, information determination module 100, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}

Wherein, I _{A → B}Be not more than total interference power values that the first network side apparatus can bear.

Preferably, information determination module 100 multiply by respectively by total interference power values that the first network side apparatus can bear the weighting parameters that each second network side apparatus is corresponding, obtains the I that the second network side apparatus is corresponding _Ai->BOr total interference power values that the first network side apparatus can be born obtains divided by the quantity of second network side apparatus the I that the second network side apparatus is corresponding _Ai->B.

Preferably, sending module 110 sends interference coordination information by a kind of mode in air interface, X2 interface, S1 interface and terminal forwarding to the second network side apparatus.

Preferably, the first network side apparatus of the embodiment of the present invention can further include: configuration module 120.

Configuration module, for after sending interference coordination information, monitoring need to be configured to the interference that up subframe is subject to, and according to monitoring result, to subframe, is configured the interference that is subject to reduce the rear subframe of configuration.

Preferably, if the interference value that the interference value that the subframe of monitoring is subject to can bear higher than the first network side apparatus, configuration module 120 is descending sub frame or the transmitted power of not dispatching or improve dispatched users on this subframe by this sub-frame configuration;

If the interference value that the interference value that the subframe of monitoring is subject to can not bear higher than the first network side apparatus, configuration module 120 is sub-frame of uplink by this sub-frame configuration.

Preferably, configuration module 120 monitorings partly or entirely need to be configured to up subframe.

As shown in Figure 4, embodiment of the present invention second network side apparatus comprises: receiver module 200 and processing module 210.

Receiver module 200, the interference coordination information of determining be used to receiving the first network side apparatus, wherein the second network side apparatus is to be in first network side apparatus network equipment on every side;

Processing module 210, adjust the downlink transmission power value or abandon the interference coordination information that receiver module 200 is received for the interference coordination information of receiving according to receiver module 200.

Preferably, processing module 210 is when adjusting the downlink transmission power value, and adjustment produces the downlink transmission power value of the descending sub frame that disturbs to the first network side apparatus or adjusts the downlink transmission power value of whole descending sub frames.

Preferably, processing module 210 is in whole downlink transmission power value, and interference coordination information according to the interference coordination information of receiving, is determined the maximum transmission power threshold value, according to the maximum transmission power threshold value while being the interference threshold value.Adjust the downlink transmission power value.

Preferably, processing module 210 is determined the maximum transmission power threshold value according to following formula:

P _Tx=I _{DL → UL}+ max (pathloss, MCL); Or

P _tx＝I _DL→UL+ACIR _bs-bs+max(pathloss，MCL)；

Wherein, P _TxIt is the maximum transmission power threshold value; I _{DL → UL}It is minimum interference threshold value in the interference threshold value of the threshold value disturbed of second network side apparatus that the first network side apparatus received can bear or a plurality of disturbed network equipment notice received;

In force, the first network equipment (being the network equipment of Fig. 3) also may produce interference.The second network equipment (being the network equipment of Fig. 4) also may be interfered, so the function of the first network equipment and the second network equipment can be combined in (being that the module of the first network equipment and the second network equipment is in an entity), the function of the function of choice for use the first network equipment or the second network equipment as required in an entity.

As shown in Figure 5, embodiment of the present invention the first method of carrying out interference coordination comprises the following steps:

Step 501, first network side apparatus are determined interference coordination information.

Step 502, first network side apparatus send interference coordination information to being in first network side second network side apparatus on every side, be used to notifying the second network side apparatus, according to interference coordination information, carry out interference coordination.

Preferably, before step 502, the first network side apparatus can first be measured the peripheral base station deployment scenario, such as determining effective interference base station number and RSRP separately, and/or with peripheral base station interacting base station configuration information, wherein configuration information comprises but is not limited at least a in following message: transmitting power, resource allocation information.

Wherein, when the first network side apparatus need to re-start the uplink-downlink configuration of local area according to the interference effect of business demand or other residential quarter or other reason, this configuration may bring the inter base station interference problem, as adjacent area subframe n, it is descending sub frame, when first network side apparatus configuration subframe n was sub-frame of uplink, adjacent area can disturb local area to receive data.The first network side apparatus need to consider that interference effect limits the configuration of this subframe or the descending power configuration of coordinates interference adjacent area.

Preferably, in step 502, a kind of mode that the first network side apparatus can pass through in air interface, X2 interface, S1 interface and terminal forwarding sends interference coordination information to the second network side apparatus.

The terminal pass-through mode can be that the first network side apparatus sends to terminal by interference coordination information, by terminal, is transmitted to the second network side apparatus.

Preferably, after step 502, can further include:

Step 503, the monitoring of first network side apparatus need to be configured to the interference that up subframe is subject to, and according to monitoring result, to subframe, are configured the interference that is subject to reduce the rear subframe of configuration.

Preferably, in step 503, when the first network side apparatus is configured ascending-descending subframes of cell, if the interference value that the interference value that the subframe that detects is subject to can bear higher than the first network side apparatus is descending sub frame or the transmitted power of not dispatching or improve dispatched users on this subframe by this sub-frame configuration; If the interference value that the interference value that the subframe that detects is subject to can not bear higher than the first network side apparatus is sub-frame of uplink by this sub-frame configuration.

In step 503, the first network side apparatus can be monitored part or all of needs and is configured to up subframe.

Mode one, interference coordination information are the maximum transmission power threshold values.The maximum transmission power threshold value makes interference level in first network side apparatus ability to bear scope.The maximum transmission power threshold value can be used to limiting the transmitting power of all descending sub frames of second network side apparatus, also can be only be used to limiting the second network side apparatus to the influential descending sub frame in other residential quarter.

Can to be network equipment determine according to actual conditions the ability to bear of first network side apparatus, or the equipment configuration of dispatching from the factory, or standard convention etc.

Concrete, in step 501, the first network side apparatus, according to the facility information of first network side apparatus and/or the facility information of second network side apparatus, determines to allow the maximum transmission power threshold value of second network side apparatus, and using the maximum transmission power threshold value as interference coordination information;

In enforcement, in enforcement, the facility information of first network side apparatus includes but not limited at least a in following message:

The facility information of second network side apparatus includes but not limited at least a in following message:

Path loss values between second network side apparatus and first network side apparatus, Reference Signal Received Power value, spectrum allocation may information and resource scheduling information.

The facility information of the facility information of first network side apparatus and second network side apparatus can be to measure to obtain, or signaling, or standard convention.

Preferably, the first network side apparatus can be determined the maximum transmission power threshold value according to formula one or formula two.

Preferably, if I _{A → B}It is the interference threshold value of the first network side apparatus second network side apparatus that can bear, this value can be the agreement agreement, or the equipment Default Value, or calculate acquisition (such as the received power value of useful signal is conciliate the pitch limit value, calculating the interference threshold value that can bear) according to actual conditions.

Preferably, the first network side apparatus, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Wherein, I _{A → B}Be not more than total interference power values that the first network side apparatus can bear.

Wherein, the first network side apparatus, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Mode have a variety ofly, below enumerate several.

(1), the first network side apparatus multiply by respectively by total interference power values that the first network side apparatus can bear the weighting parameters that each second network side apparatus is corresponding, obtains the I that the second network side apparatus is corresponding _Ai->B.

Such as determining the weighting parameters that each second network side apparatus is corresponding according to the disturbance regime of second network side apparatus to the first network side apparatus, for example disturb larger weighting parameters larger;

Then the total interference power values that the first network side apparatus can be born multiply by respectively the weighting parameters that each second network side apparatus is corresponding, obtains respectively the I that each second network side apparatus is corresponding _Ai->B.Be I corresponding to each second network side apparatus of this mode _Ai->BLikely identical also likely different.

(2), first network side apparatus total interference power values that the first network side apparatus can be born is divided by the quantity of second network side apparatus, obtains the I that the second network side apparatus is corresponding _Ai->B.Be I corresponding to each second network side apparatus of this mode _Ai->BAll identical.

Preferably, when interference that the second network side apparatus forms is outside the first network side apparatus receives bandwidth, ACIR _Bs-bsBe 0;

When interference that the second network side apparatus forms is outside the first network side apparatus receives bandwidth, according at least a definite ACLR and the ACS in following manner, and determine ACIR according to ACLR and ACS _Bs-bs

Wherein, the mode of determining ACLR and ACS comprises:

By high level, pass through signaling ACS;

According to self configuration acquisition ACLR.

Concrete, in step 501, the first network side apparatus is determined I _{A → B}, and by I _{A → B}As interference coordination information;

Wherein, the first network side apparatus, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}Mode have a variety ofly, specifically can, referring to mode one, not repeat them here.

Wherein, the mode of determining ACLR and ACS comprises:

Determine based on experience value ACLR and/or ACS;

According to reference value, determine ACLR and/or ACS;

Determine ACLR and/or ACS;

By according to high level, by the notice of signaling, determining ACS;

According to the definite ACLR of self configuration.

Mode three, interference coordination information are value and power reference.For mode three, preferably, being in first network side apparatus second network side apparatus on every side is that the first network side apparatus is produced to the network equipment that disturbs.

Take the second network side apparatus, being below network equipment that the first network side apparatus produce is disturbed describes as example.

Concrete, in step 501, the first network side apparatus is determined power adjustment, and using power adjustment as interference coordination information.

Wherein, the first network side apparatus determines that the mode of power adjustment has a lot, below enumerates several.

(1), the first network side apparatus is determined the value and power reference value according to formula five or formula six, and is determined power adjustment according to value and power reference.

Preferably, the first network side apparatus preferably, the first network side apparatus is from value and power reference corresponding to each second network side apparatus of determining, selecting minimum value as for determining the value and power reference of power adjustment, and determines according to value and power reference the power adjustment that each second network side apparatus is corresponding; Or

The first network side apparatus is averaged as the value and power reference for definite power adjustment from value and power reference corresponding to each second network side apparatus of determining, and according to value and power reference, determines the power adjustment of each second network side apparatus 20 correspondence.

Preferably, the first network side apparatus can be by a kind of definite power adjustment in following manner.

The power adjustment of the second network side apparatus that mode A1, first network side apparatus can disturb value and power reference as corresponding each generation.

Mode A2, first network side apparatus according to value and power reference from the power adjustment set, selecting power adjustment.

Preferably, if the interference value that the first network side apparatus can bear is greater than the interference value that measures, from power adjustment set, selecting one near value and power reference and be not more than 0 numerical value as power adjustment, if the interference value that the first network side apparatus can bear is not more than the interference value that measures, from power adjustment set, select one near value and power reference and greater than 0 numerical value as power adjustment.

Specifically can determine as required the value in power adjustment set.

Mode A3, first network side apparatus are adjusted the step value set and are selected power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

Preferably, the first network side apparatus is adjusted the corresponding relation of step value in the step value set according to predefined value range and power, determine step value corresponding to scope that value and power reference is affiliated.Accordingly, the second network side apparatus is only adjusted a step sizes at every turn.

Specifically can determine as required the value in power adjustment set of steps.

(2), the first network side apparatus is determined value and power reference according to formula seven or formula eight, and is determined power adjustment according to value and power reference.

The power adjustment of the second network side apparatus that mode B1, first network side apparatus can disturb value and power reference as corresponding each generation.

Mode B2, first network side apparatus according to value and power reference from the power adjustment set, selecting power adjustment.

Specifically can determine as required the value in power adjustment set.

Mode B3, first network side apparatus are adjusted the step value set and are selected power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

Preferably, the first network side apparatus is adjusted the corresponding relation of step value in the step value set according to predefined value range and power, determine step value corresponding to scope that value and power reference is affiliated.

(3), first network side apparatus total interference value I that will measure _mTotal interference power values I that can bear with the first network side apparatus _AcceptIt is poor to do, and according to difference, determines power adjustment total value; According to power, adjust total value, determine that each produces the power adjustment of the second network side apparatus that disturbs.

Preferably, the first network side apparatus can obtain value and power reference divided by producing the second network side apparatus quantity of disturbing by difference, according to value and power reference, determines that each produces the power adjustment of the second network side apparatus that disturbs; Or

The first network side apparatus is determined the weights of each second network side apparatus, and the weights that difference multiply by respectively each second network side apparatus are obtained to value and power reference, according to value and power reference, determines that each produces the power adjustment of the second network side apparatus that disturbs.

The power adjustment of mode C1, first network side apparatus disturb power adjustment as corresponding each generation second network side apparatus.

Mode C3, first network side apparatus are adjusted the step value set and are selected power to adjust step value from power according to power adjustment, and the power that will select is adjusted step value as power adjustment.

Preferably, the interference value that the first network side apparatus can bear at the first network side apparatus is during greater than the interference value that measures, from power, adjust set of steps and select one to be not more than 0 numerical value as power adjustment, when the interference value that can bear at the first network side apparatus is not more than the interference value that measures, from power adjust set of steps select one greater than 0 numerical value as power adjustment.

Preferably, for mode three, in step 502, the first network side apparatus can be according to the time of setting, and the cycle sends interference coordination information.The concrete time can be set as required.

In force, the second network side apparatus can have a plurality of, if a plurality of second network side apparatus are arranged, a kind of interference coordination information of respectively determining each second network side apparatus of first network side apparatus in the manner described above, and send to corresponding second network side apparatus.

As shown in Figure 6, embodiment of the present invention the second method of carrying out interference coordination comprises the following steps:

Step 601, second network side apparatus receive the interference coordination information that the first network side apparatus is determined, wherein, the second network side apparatus is to be in first network side apparatus network equipment on every side.

Step 602, second network side apparatus are adjusted the downlink transmission power value according to the interference coordination information of receiving.

Preferably, if the second network side apparatus is adjusted the downlink transmission power value according to the interference coordination information received, the second network side apparatus can be adjusted to the first network side apparatus is produced the downlink transmission power value of the descending sub frame that disturbs or adjusts the downlink transmission power value of whole descending sub frames

Preferably, if interference coordination information is the interference threshold value, and the second network side apparatus adjusts the downlink transmission power value according to the interference coordination information received, and the second network side apparatus is according to the interference coordination information of receiving, determine the maximum transmission power threshold value, according to the maximum transmission power threshold value.Adjust the downlink transmission power value.

Preferably, the second network side apparatus can need determine the downlink transmission power value of adjusting according to formula three or formula four.

Wherein, the mode of determining ACLR and ACS comprises:

By high level, pass through signaling ACS;

According to self configuration acquisition ACLR.

Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the new method of carrying out interference coordination, namely first perform step 501 and step 502, then perform step 601 and step 602; Step 503 does not have inevitable sequential relationship with step 601 and step 602, only need to guarantee to get final product after step 502.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.

The present invention describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step to produce computer implemented processing, thereby in the instruction of carrying out on computer or other programmable devices, be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

Although described the preferred embodiments of the present invention, in a single day those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.

Claims

1. a method of carrying out interference coordination, is characterized in that, the method comprises:

The first network side apparatus is determined interference coordination information, and wherein, described interference coordination information comprises a kind of in following: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment;

2. the method for claim 1, is characterized in that, described interference coordination information is the maximum transmission power threshold value, and described first network side apparatus determines that interference coordination information comprises:

Described first network side apparatus is according to the facility information of first network side apparatus and/or the facility information of second network side apparatus, determine to allow the maximum transmission power threshold value of second network side apparatus, and using described maximum transmission power threshold value as interference coordination information;

3. method as claimed in claim 2, is characterized in that, the facility information of described second network side apparatus comprises at least a in following message:

Path loss values between second network side apparatus and first network side apparatus, Reference Signal Received Power value, spectrum allocation may information and resource scheduling information;

The facility information of described first network side apparatus comprises at least a in following message:

4. method as claimed in claim 2, is characterized in that, described first network side apparatus is determined the maximum transmission power threshold value according to following formula:

P _{Max_tx}=I _{A → B}+ ACIR _Bs-bs+ max (pathloss, MCL); Or

P _{max_tx}＝I _A→B+max(pathloss,MCL)；

5. method as claimed in claim 4, is characterized in that, when interference that described second network side apparatus forms is in described first network side apparatus receives bandwidth, and ACIR _Bs-bsBe 0;

When interference that described second network side apparatus forms is outside described first network side apparatus receives bandwidth, according at least a definite ACLR and the ACS in following manner, and determine ACIR according to ACLR and ACS _Bs-bs

Wherein, the mode of determining ACLR and ACS comprises:

Determine based on experience value ACLR and/or ACS;

According to reference value, determine ACLR and/or ACS;

By according to high level, by the notice of signaling, determining ACS;

According to the definite ACLR of self configuration.

6. method as claimed in claim 5, is characterized in that, when determining a plurality of ACLR, according to frequency allocation situation or scheduling of resource situation, from a plurality of ACLR, selecting an ACLR;

7. the method for claim 1, is characterized in that, described interference coordination information is for disturbing the ability to bear threshold value, and described first network side apparatus determines that interference coordination information comprises:

Described first network side apparatus is determined I _{A → B}, and by I _{A → B}As interference coordination information;

8. the method for claim 1, is characterized in that, described interference coordination information is power adjustment, and described first network side apparatus is determined value and power reference according to following formula, and determines power adjustment according to value and power reference:

P _A=I _{A → B}-RSRP _AOr P _A=min (I _{A → B}-RSRP _A, 0);

9. the method for claim 1, is characterized in that, described interference coordination information is power adjustment, and described first network side apparatus is determined value and power reference according to following formula, and determines power adjustment according to value and power reference;

10. method as claimed in claim 8 or 9, is characterized in that, described first network side apparatus determines that power adjustment comprises:

Described first network side apparatus is from value and power reference corresponding to each second network side apparatus of determining, selecting minimum value as for determining the value and power reference of power adjustment, and determines according to value and power reference the power adjustment that each second network side apparatus is corresponding; Or

Described first network side apparatus is averaged as the value and power reference for definite power adjustment from value and power reference corresponding to each second network side apparatus of determining, and determines according to value and power reference the power adjustment that each second network side apparatus is corresponding.

11. method as claimed in claim 7, is characterized in that, described first network side apparatus determines that power adjustment comprises:

Total interference value I that described first network side apparatus will measure _mTotal interference power values I that can bear with described first network side apparatus _AcceptIt is poor to do, and according to difference, determines power adjustment total value;

Described first network side apparatus is adjusted total value according to power, determines that each produces the power adjustment of the second network side apparatus that disturbs.

12. method as claimed in claim 11, is characterized in that, described first network side apparatus determines that each power adjustment that produces the second network side apparatus that disturbs comprises:

Described first network side apparatus obtains value and power reference by difference divided by producing the second network side apparatus quantity of disturbing, and according to value and power reference, determines that each produces the power adjustment of the second network side apparatus that disturbs; Or

Described first network side apparatus is determined the weights of each second network side apparatus, and the weights that difference multiply by respectively each second network side apparatus are obtained to value and power reference, according to value and power reference, determine that each produces the power adjustment of the second network side apparatus that disturbs.

13. as claim 8～9,12 arbitrary described methods, it is characterized in that, described first network side apparatus determines that each power adjustment that produces the second network side apparatus that disturbs comprises:

The power adjustment of described first network side apparatus disturbs value and power reference as corresponding each generation second network side apparatus; Or

Described first network side apparatus according to value and power reference from the power adjustment set, selecting power adjustment; Or

Described first network side apparatus is adjusted the step value set and is selected power to adjust step value from power according to value and power reference, and the power that will select is adjusted step value as power adjustment.

14. as claim 1,8,9,11 or 12 arbitrary described methods, it is characterized in that, described first network side apparatus sends interference coordination information and comprises:

The described first network side apparatus cycle sends interference coordination information.

15. as claim 4,7,8 and 9 arbitrary described methods, it is characterized in that, described first network side apparatus is determined I according to the following step _{A → B}:

Described first network side apparatus, according to total interference threshold that the first network side apparatus can bear, is determined I _{A → B}

16. method as claimed in claim 15, is characterized in that, described first network side apparatus is determined I _{A → B}Comprise:

Described first network side apparatus multiply by respectively by total interference power values that the first network side apparatus can bear the weighting parameters that each second network side apparatus is corresponding, obtains the I that the second network side apparatus is corresponding _Ai->BOr

Total interference power values that described first network side apparatus can bear the first network side apparatus, divided by the quantity of second network side apparatus, obtains the I that the second network side apparatus is corresponding _Ai->B.

17. as claim 1～9 or 11～12 arbitrary described methods, it is characterized in that, described first network side apparatus sends interference coordination information and comprises:

A kind of mode during described first network side apparatus forwards by air interface, X2 interface, S1 interface and terminal sends interference coordination information to the second network side apparatus.

18. the method for claim 1, is characterized in that, described first network side apparatus also comprises after sending interference coordination information:

Described first network side apparatus monitoring need to be configured to the interference that up subframe is subject to, and according to monitoring result, to subframe, is configured the interference that is subject to reduce the rear subframe of configuration.

19. method as claimed in claim 18, is characterized in that, described first network side apparatus is configured and comprises ascending-descending subframes of cell:

If the interference value that the interference value that the subframe of monitoring is subject to can bear higher than the first network side apparatus is descending sub frame or the transmitted power of not dispatching or improve dispatched users on this subframe by this sub-frame configuration;

If the interference value that the interference value that the subframe of monitoring is subject to can not bear higher than the first network side apparatus is sub-frame of uplink by this sub-frame configuration.

20. method as described as claim 18 or 19, is characterized in that, described first network side apparatus monitoring partly or entirely need to be configured to up subframe.

21. a method of carrying out interference coordination, is characterized in that, the method comprises:

The second network side apparatus receives the interference coordination information that the first network side apparatus is determined, wherein the second network side apparatus is the network equipment that is in around the first network side apparatus, and described interference coordination information comprises a kind of in following: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment;

22. method as claimed in claim 21, is characterized in that, described second network side apparatus is adjusted the downlink transmission power value and is comprised:

The adjustment of described second network side apparatus produces the downlink transmission power value of the descending sub frame that disturbs to the first network side apparatus or adjusts the downlink transmission power value of whole descending sub frames.

23. method as described as claim 21 or 22, is characterized in that, described interference coordination information is to disturb the ability to bear threshold value;

Described second network side apparatus is adjusted the downlink transmission power value and is comprised:

Described second network side apparatus, according to the interference coordination information of receiving, is determined the maximum transmission power threshold value;

Described second network side apparatus, according to the maximum transmission power threshold value, is adjusted the downlink transmission power value.

24. method as claimed in claim 23, is characterized in that, described second network side apparatus is determined the maximum transmission power threshold value according to following formula:

P _Tx=I _{DL → UL}+ max (pathloss, MCL); Or

P _tx＝I _DL→UL+ACIR _bs-bs+max(pathloss,MCL)；

Wherein, P _TxIt is the maximum transmission power threshold value; I _{DL → UL}It is minimum interference ability to bear threshold value in the interference ability to bear threshold value of the threshold value disturbed of second network side apparatus that the first network side apparatus received can bear or a plurality of disturbed network equipment notice received;

25. method as claimed in claim 24, is characterized in that, when interference that described second network side apparatus forms is outside described first network side apparatus receives bandwidth, and ACIR _Bs-bsBe 0;

When interference that described second network side apparatus forms is outside described first network side apparatus receives bandwidth, when interference that described second network side apparatus forms is outside described first network side apparatus receives bandwidth, according at least a definite ACLR and the ACS in following manner, and determine ACIR according to ACLR and ACS _Bs-bs

Wherein, the mode of determining ACLR and ACS comprises:

By high level, pass through signaling ACS;

According to self configuration acquisition ACLR.

26. a first network side apparatus that carries out interference coordination, is characterized in that, this equipment comprises:

The information determination module, for determining interference coordination information, wherein, described interference coordination information comprises a kind of in following: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment;

27. equipment as claimed in claim 26, is characterized in that, described information determination module specifically for:

According to the facility information of first network side apparatus and/or the facility information of second network side apparatus, determine to allow the maximum transmission power threshold value of second network side apparatus, and using described maximum transmission power threshold value as interference coordination information;

28. equipment as claimed in claim 27, is characterized in that, described information determination module is determined the maximum transmission power threshold value according to following formula:

P _{Max_tx}=I _{A → B}+ ACIR _Bs-bs+ max (pathloss, MCL); Or

P _{max_tx}＝I _A→B+max(pathloss,MCL)；

29. equipment as claimed in claim 26, is characterized in that, described information determination module specifically for:

Determine I _{A → B}, and by I _{A → B}As interference coordination information;

Wherein, I _{A → B}Be the threshold value that the first network side apparatus second network side apparatus that can bear disturbs, that is, disturb the ability to bear threshold value.

30. equipment as claimed in claim 26, is characterized in that, described information determination module specifically for:

According to following formula, determine value and power reference, and determine power adjustment according to value and power reference;

P _A=I _{A → B}-RSRP _AOr P _A=min (I _{A → B}-RSRP _A, 0);

31. equipment as claimed in claim 26, is characterized in that, described information determination module is specifically for value and power reference, and determines power adjustment according to value and power reference;

32. equipment as described as claim 30 or 31, is characterized in that, described information determination module specifically for:

From value and power reference corresponding to each definite second network side apparatus, selecting minimum value as power adjustment corresponding to each second network side apparatus; Or be averaged as power adjustment corresponding to each second network side apparatus from value and power reference corresponding to each second network side apparatus of determining.

33. equipment as claimed in claim 26, is characterized in that, described information determination module specifically for:

By the total interference value I that measures _mTotal interference power values I that can bear with described first network side apparatus _AcceptIt is poor to do, and according to difference, determines power adjustment total value; According to power, adjust total value, determine that each produces the power adjustment of the second network side apparatus that disturbs.

34. equipment as claimed in claim 33, is characterized in that, described information determination module specifically for:

Difference is obtained to value and power reference divided by producing the second network side apparatus quantity of disturbing, according to value and power reference, determine that each produces the power adjustment of the second network side apparatus that disturbs; Or

Determine the weights of each second network side apparatus, and the weights that difference multiply by respectively each second network side apparatus are obtained to value and power reference, according to value and power reference, determine that each produces the power adjustment of the second network side apparatus that disturbs.

35. as claim 30～31,34 arbitrary described equipment, it is characterized in that, described information determination module specifically for:

The power adjustment of the second network side apparatus that value and power reference is disturbed; Or

According to value and power reference from the power adjustment set, selecting power adjustment; Or

According to value and power reference, from power, adjust the step value set and select power to adjust step value, and the power that will select is adjusted step value as power adjustment.

36. as claim 26,30,31,33 or 34 arbitrary described equipment, it is characterized in that, described sending module specifically sends interference coordination information for: cycle.

37. as claim 28,29,30 or 31 described equipment, it is characterized in that, described information determination module specifically for:

According to total interference threshold that the first network side apparatus can bear, determine I _{A → B}

38. equipment as claimed in claim 36, is characterized in that, described information determination module specifically for:

Total interference power values that the first network side apparatus can be born multiply by respectively the weighting parameters that each second network side apparatus is corresponding, obtains the I that the second network side apparatus is corresponding _Ai->BOr total interference power values that the first network side apparatus can be born obtains divided by the quantity of second network side apparatus the I that the second network side apparatus is corresponding _Ai->B.

39. as claim 26～31 or 33～34 arbitrary described equipment, it is characterized in that, described sending module specifically for:

A kind of mode in forwarding by air interface, X2 interface, S1 interface and terminal sends interference coordination information to the second network side apparatus.

40. equipment as claimed in claim 26, is characterized in that, described first network side apparatus also comprises:

41. equipment as claimed in claim 40, is characterized in that, described configuration module specifically for:

42. equipment as described as claim 40 or 41, is characterized in that, described configuration module monitoring partly or entirely need to be configured to up subframe.

43. a second network side apparatus that carries out interference coordination, is characterized in that, this equipment comprises:

Receiver module, the interference coordination information of determining for receiving the first network side apparatus, wherein the second network side apparatus is the network equipment that is in around the first network side apparatus, and described interference coordination information comprises a kind of in following: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment;

44. equipment as claimed in claim 43, is characterized in that, described processing module specifically for:

When adjusting the downlink transmission power value, adjustment produces the downlink transmission power value of the descending sub frame that disturbs to the first network side apparatus or adjusts the downlink transmission power value of whole descending sub frames.

45. equipment as described as claim 43 or 44, is characterized in that, described processing module specifically for:

In whole downlink transmission power value, and described interference coordination information is, while disturbing the ability to bear threshold value, according to the interference coordination information of receiving, to determine the maximum transmission power threshold value, according to the maximum transmission power threshold value, adjusts the downlink transmission power value.

46. equipment as claimed in claim 45, is characterized in that, described processing module is determined the maximum transmission power threshold value according to following formula:

P _Tx=I _{DL → UL}+ max (pathloss, MCL); Or

P _tx＝I _DL→UL+ACIR _bs-bs+max(pathloss,MCL)；

47. a system of carrying out interference coordination, is characterized in that, this system comprises:

The first network side apparatus, for determining interference coordination information, to being in first network side second network side apparatus on every side, send interference coordination information, wherein, described interference coordination information comprises a kind of in following: the maximum transmission power threshold value, disturb ability to bear threshold value and power adjustment;