CN102348216A - Interference processing method and device - Google Patents
Interference processing method and device Download PDFInfo
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- CN102348216A CN102348216A CN2010102512735A CN201010251273A CN102348216A CN 102348216 A CN102348216 A CN 102348216A CN 2010102512735 A CN2010102512735 A CN 2010102512735A CN 201010251273 A CN201010251273 A CN 201010251273A CN 102348216 A CN102348216 A CN 102348216A
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Abstract
The embodiment of the invention provides an interference processing method and device, relating to the technical field of communication and invented for improving the sensitivity of interference processing and the inhibition performance on interference. The interference processing method comprises the following steps of: determining an interference coordination solution used by an interference base station from a pre-set set of the interference coordination solutions, wherein the set of the interference coordination solutions comprises at least two interference coordination solutions; and carrying out the interference processing according to the interference coordination solution used by the interference base station. The interference processing method and device, provided by the embodiment of the invention, can be used in a wireless communication system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of interference processing method and device.
Background technology
Along with the development and the development of technology of industry, various types of wireless communication systems all is devoted to the elevator system performance, to satisfy ever-increasing performance requirement.With LTE (Long Term Evolution; Long Term Evolution)/LTE-A (advanced Long Term Evolution; Long Term Evolution Advanced) wireless communication system is an example; For the elevator system performance; Can the coverage deployed that adopts the homogeneous network (homogeneous network) that constitutes with same type of base station of a kind of standard with a kind of standard but the dissimilar base stations or the base station of different systems form heterogeneous network (Heterogeneous network).For example; Disposed big transmitting power base station macro base station MeNB (Macro eNodeB) and adopt with a kind of standard with MeNB but dissimilar low transmitting power base station LPN (Lower Power Node) with the hot spot region that strengthens network cover, indoor blind spot covers, cell edge covers, and promotes the spectrum utilization efficiency etc. of sub-district average throughput, cell edge throughput, sub-district.
In the heterogeneous network of above-mentioned MeNB and LPN composition; In order to improve the spectrum utilization efficiency of system as much as possible, can be so that the configurable up and/or down frequency spectrum resources of configurable up and/or down frequency spectrum resources of LPN and MeNB be carried out spectrum reuse wholly or in part.At this moment; Because LPN has disposed frequency spectrum resource identical with MeNB or that part is identical; Therefore the channel of the user equipment (UE) (User Equipment) of LPN or LPN service or signal transmission, and will produce people having a common goal between the channel of the UE of MeNB or MeNB service or the signal transmission or with disturbing frequently.Disturbing to influence the reliability that LPN and the transmission of MeNB down channel and up channel detect.Therefore, in heterogeneous network, need carry out interference coordination between LPN and the MeNB,, comprise the coordination of frequency, time, power, code source, with the reliability of channel between assurance LPN and the MeNB and signal transmission such as resource coordination.
In the prior LTE system, the power level information between the base station on the mutual Physical Resource Block, the power level information on the adjacent base station physical Resource Block need be considered in the base station when doing scheduling, suppress and coordination thereby disturb.But this interference processing method means are single; Flexibility is relatively poor; And; Can not effectively solve control channel and the interference coordination problem of common signal channel between the base station; Therefore, coordination and inhibition ability that interference is carried out are limited, can not reach the interference rejection of optimization; And then influenced the reliability of channel or signal transmission, limited the level of resources utilization of system.
Summary of the invention
The main purpose of embodiments of the invention is, a kind of method and apparatus that disturbs processing is provided, and can improve the interference processing more flexible, promotes the rejection to disturbing.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of interference processing method comprises:
From preset interference coordination schemes set, confirm the interference coordination schemes that interference base station adopts, said interference coordination schemes set comprises at least two kinds of interference coordination schemes;
According to the interference coordination schemes that said interference base station adopts, the processing of disturbing.
A kind of interference processing unit comprises:
Confirm the unit, be used for confirming the interference coordination schemes of interference base station that said interference coordination schemes set comprises at least two kinds of interference coordination schemes from being adopted from preset interference coordination schemes set;
Processing unit is according to the interference coordination schemes that said interference base station adopts, the processing of disturbing.
After adopting technique scheme; The method and apparatus that the interference that the embodiment of the invention provides is handled; Disturb when handling; Can suppress requirement according to load state, annoyance level, the interference of system; Actual conditions such as the ability of UE; Confirm interference coordination schemes flexibly; Promptly can select best interference coordination schemes; Therefore; Can effectively coordinate and suppress interference; Promoted and disturbed the performance that suppresses, effectively guaranteed the reliability of channel and/or signal transmission, the level of resources utilization that has improved system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; Accompanying drawing in describing below only is some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the interference processing method of the embodiment of the invention;
Fig. 2 (a) is the schematic flow sheet of the embodiment of the invention based on the interference processing method of UE;
Fig. 2 (b) is that the interference coordination mode is a kind of principle schematic of configuration MBSFN subframe mode in the embodiment of the invention;
Fig. 2 (c) is that the interference coordination mode is a kind of principle schematic of configuration Almost Blank subframe mode in the embodiment of the invention;
A schematic flow sheet of the interference processing method that Fig. 3 provides for the embodiment of the invention;
Another schematic flow sheet of the interference processing method that Fig. 4 provides for the embodiment of the invention;
The structured flowchart of the interference processing unit 1 that Fig. 5 provides for the embodiment of the invention;
The another kind of structured flowchart of the interference processing unit 1 that Fig. 6 provides for the embodiment of the invention;
The another kind of structured flowchart of the interference processing unit 1 that Fig. 7 provides for the embodiment of the invention;
The another kind of structured flowchart of the interference processing unit 1 that Fig. 8 provides for the embodiment of the invention;
The structured flowchart of the interference processing unit 2 that Fig. 9 provides for the embodiment of the invention;
The structured flowchart of the interference treatment system that Figure 10 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 1, the interference processing method that the embodiment of the invention provides, the interfered base station based in the communication system comprises the following steps:
S11 from preset interference coordination schemes set, confirms the interference coordination schemes that said interference base station adopts;
Wherein, comprise at least two kinds of interference coordination schemes in the interference coordination schemes set of presetting.
S12 is according to the interference coordination schemes that said interference base station adopts, the processing of disturbing.
No matter interfered base station or interference base station; The method that the interference of adopting the embodiment of the invention to provide is handled is disturbed when handling; In the interference coordination schemes that can from preset interference coordination schemes set, promptly all can carry out; Confirm the interference coordination schemes that interference base station is adopted flexibly; That is: can select the best interference coordination schemes of relative actual conditions; Therefore; Can effectively coordinate and suppress interference; Promoted and disturbed the performance that suppresses; Effectively guarantee the reliability of channel transmission, improved the level of resources utilization of system and the overall performance of system.
The interference coordination schemes that interference base station adopts can initiatively be that interference base station is confirmed by interfered base station directly; At this moment; Interfered base station needs and will generate corresponding interference coordination information according to this scheme; And interference coordination information sent to interference base station, so that interference base station is confirmed the interference coordination schemes that interference base station adopts according to interference coordination information.The interference coordination schemes that interference base station adopts also can be that interference base station is initiatively confirmed voluntarily; To generate corresponding interference coordination information according to this scheme then; And interference coordination information sent to interfered base station, so that interfered base station is confirmed the interference coordination schemes of interference base station according to interference coordination information.That is: no matter the interference coordination schemes of interference base station employing is confirmed initiatively still initiatively to be confirmed by interfered base station that the interference coordination schemes that interference base station adopts after confirming wants interfered base station and interfered base station to be total to knowledge by interference base station.
Wherein, when interfered base station or interference base station were confirmed interference coordination schemes that interference base station adopts, load state, annoyance level, the interference that all can be dependent on system suppressed requirement, or the ability of UE etc. confirms, confirmed that specifically rule do not limit.Therefore; The disturbance coordination method that the embodiment of the invention provides; Before disturbing processing, also can comprise: the scheme that preestablishes the interference coordination schemes that interference coordination schemes set and interference base station adopted is confirmed rule, and wherein, interference coordination schemes is gathered and comprised at least two kinds of interference coordination schemes.Like this; When interfered base station or interference base station are confirmed the interference coordination schemes of interference base station employing; Load state, annoyance level, the interference that all can be dependent on system suppress actual conditions and the predefined definite rules of scheme corresponding to different actual conditions such as ability of requirement or UE; In the whole interference coordination schemes that in pre-configured interference coordination schemes set, promptly can carry out, confirm for the best interference coordination schemes of actual conditions to be the interference coordination schemes that interference base station adopted.Certainly, concrete scheme confirms that principle do not limit, and can require to be provided with according to real system.
Wherein, interference coordination schemes comprises the interference coordination mode that interference base station need adopt, and can also comprise the transmission rule that other interference base stations such as the resource of having carried out interference coordination under the interference coordination mode that is adopted and time shift value need adopt.
The interference coordination mode is the major technique that is adopted that interference base station carries out interference coordination; In a kind of interference coordination schemes; The interference coordination mode comprises at least a; For example based on the carrier aggregation mode; Shrink (shrinking) mode based on control channel; Based on configuration MBSFN subframe mode, based on configuration Almost Blank subframe mode; Based on the displacement mode on the life period between the transmission time of transmission time that makes interference base station and interfered base station; Or the combination of above-mentioned several modes and other interference coordination mode etc., do not limit in the embodiment of the invention.
The carrier aggregation mode is meant that interference base station can use branch's carrier transmission control channel and common signal channel; Interfered base station can use another one different branches carrier transmission control channel and common signal channel, thereby has avoided the interference of control channel and the common signal channel transmission between interference base station and the interfered base station.
Control channel contraction mode is meant that interference base station can be at the partial-band transmitted over resources control channel and the common signal channel of branch's carrier wave; Interfered base station can be on other band resource of above-mentioned identical branch's carrier wave transmitting control channel and common signal channel; And the resource quadrature of interference base station and interfered base station transmitting control channel and common signal channel, thereby avoided the interference of control channel and the common signal channel transmission between interference base station and the interfered base station.
MBSFN is called as the single frequency network multicast transmission, is exactly at one time, and data are carried out synchronous transmission with same frequency in a plurality of base stations.At present in the agreement of LTE to the division of the transmission band of MBSFN, MBSFN special carrier and MBSFN/unicast (clean culture) mixed carrier is arranged.On the MBSFN special carrier, can only transmit, and have unicast transmission and MBSFN transmission to use jointly on the MBSFN/unicast mixed carrier as MBSFN.On the regulation MBSFN/unicast of the LTE system mixed carrier; For frequency division multiplexing FDD (Frequency Division Duplexing) system; Comprise in each radio frames and to be numbered 0 to 9 10 sub-frame; On 10 sub-frame of each radio frames; Remove 0 with configuration only; Descending sub frame beyond 4,5,9 is as the MBSFN subframe.For time division multiplexing TDD (Time Division Duplexing) system, on each radio frames, remove descending sub frame beyond 0,1,5,6 as the MBSFN subframe with configuration only.In each MBSFN subframe; Preceding m orthogonal frequency division multiplex OFDM (Orthogonal Frequency Division Multiplexing) symbol is used to carry out the unicast business, and is used as the professional transmission of multimedia broadcast multi-broadcasting business MBMS (Multimedia Broadcast Multicast Service) except that preceding m other OFDM symbol the orthogonal frequency division multiplex OFDM symbol in this MBSFN subframe.
For the down channel of protecting interfered base station and/or the transmission of signal; Wherein down channel comprises down control channel and/or data channel; Interference base station can be configured to the MBSFN subframe with some descending sub frame of own sub-district, and on these are configured to the MBMS resource of MBSFN subframe, does not transmit or low-power transmission data message and pilot signal.When on the MBMS of the MBSFN subframe resource not when transmitting data information and pilot signal; Owing to have only preceding m the unicast transmission on the OFDM symbol to cause interference in the MBSFN subframe of interference base station to interfered base station; Therefore, configuration MBSFN subframe can reduce the interference to interfered base station.
For the down channel of protecting interfered base station and/or the transmission of signal; Wherein down channel comprises down control channel and/or data channel; Interference base station can also be configured to some descending sub frame of own sub-district Almost Blank subframe; Almost Blank subframe is meant the transmission of on this subframe, having only public guide frequency, perhaps has only the transmission of public guide frequency, the control channel or the partial data Channel Transmission of part.Therefore; Some base stations of disturbing are configured to Almost Blank subframe with certain descending sub frame, and interfered base station will only bear the limited interference from interference base station, the i.e. interference of the public guide frequency of interference base station so; And/or limited control channel, and/or the interference of limited data channel.Therefore, configuration Almost Blank subframe can reduce the interference to interfered base station.
In order to protect the Physical Broadcast Channel PBCH(PhysicalBroadcastChannel of interfered base station); Master sync signal PSS(PrimarySynchronizationSignal) and auxiliary synchronous signals SSS(SecondarySynchronizationSignal) etc. the transmission of common signal channel or signal; Can make the PBCH of interference base station; PSS; The transmission time of SSS and the PBCH of interfered base station; PSS; Displacement between the transmission time of SSS on the life period (timeshifting) for example keeps the regular hour to be offset by the frame start position that makes interference base station and interfered base station and realizes.Through the coordination between displacement and base station, interference base station can be at the PBCH of interfered base station, and PSS does not transmit any information on the transfer resource of SSS, thus the PBCH of protection interfered base station, PSS, the transmission reliability of SSS.
In addition, under actual conditions such as specific load and disturbance regime and system configuration, the compound mode of above-mentioned several interference coordination modes can reach better interference coordination and suppress effect.
Further; The interference processing method that the embodiment of the invention provides; Also can comprise: the interference coordination schemes that said interference base station adopts is notified to the UE in the interfered base station, made the UE in the interfered base station carry out interference eliminated to the interference signal of said interference base station according to said interference coordination schemes.Interfered base station can adopt the mode of broadcasting or clean culture that the interference coordination schemes that said interference base station adopts is notified to the UE in the interfered base station; Also can pass through Physical Broadcast Channel; Dynamic Broadcast Channel and radio resource control RRC(RadioResourceControl) mode of proprietary signaling is notified to the UE in the interfered base station with the interference coordination schemes that interference base station adopts; Like this; UE in the interfered base station can be according to the interference coordination schemes of interference base station employing; Interfering signal to interference base station is carried out further interference eliminated; Guarantee the reliability of channel transmission, and then the overall performance of effective Hoisting System.
Wherein, The interference coordination schemes that interfered base station adopts according to said interference base station, the processing of disturbing specifically can comprise: interfered base station has carried out the strongly disturbing UE scheduling in base station that is interfered in self sub-district on the subframe or running time-frequency resource of interference coordination at interference base station.
Interference base station is according to the interference coordination schemes of confirming; The processing of disturbing specifically can comprise: interference base station according to the interference coordination mode of appointment in the interference coordination schemes, carry out the interference coordination of resource; Such as the coordination that comprises frequency, time, power, code source, perhaps interference base station carries out interference coordination with respect to the time shift value of interfered base station etc. and handles.
Shown in Fig. 2 (a), the interference processing method that the embodiment of the invention provides, the UE based under the interfered base station in the communication system comprises the following steps:
S21 is known the interference coordination schemes that interference base station adopts;
S22 according to said interference coordination schemes, carries out interference eliminated to the interference signal of said interference base station.
The method that the interference that the embodiment of the invention provides is handled; UE can carry out interference eliminated to the interference signal of said interference base station according to the interference coordination schemes of interference base station employing, eliminates interference effect as far as possible; Guarantee the reliability of Channel Transmission, and then the overall performance of effective elevator system.
Wherein, UE can pass through to receive the Physical Broadcast Channel of interfered base station, or Dynamic Broadcast Channel, or the interference coordination information of carrying in the proprietary signaling of radio resource control RRC, knows the interference coordination schemes that interference base station adopts.Said interference coordination schemes can repeat no more referring to above describing here.UE can also combine the resource scheduling information of oneself according to the interference coordination schemes that interference base station adopted, and the interference signal of interference base station is carried out interference eliminated.
Fig. 2 (b) has illustrated that the interference coordination mode that interference base station adopts in a kind of embodiment of the invention is the sketch map of MBSFN subframe.Can find out that from Fig. 2 (b) preceding m OFDM symbol of MBSFN subframe can be used for transmitting pilot tone and Downlink Control Information.The master that subscriber equipment detects interference base station reaches auxiliary synchronous signals synchronously; And then the cell ID Cell-ID of definite interference base station and the pattern of pilot frequency sequence; And the pilot signal in preceding m the OFDM symbol of the MBSFN subframe of the interference base station that receives carried out interference eliminated, promote that the subscriber equipment control channel detects or the reliability of pilot tone.
Fig. 2 (c) has illustrated that the interference coordination mode that interference base station adopts in a kind of embodiment of the invention is the sketch map of Almost Blank subframe.From Fig. 2 (c), can find out to have only pilot signal in the Almost Blank subframe.The master that subscriber equipment detects interference base station reaches auxiliary synchronous signals synchronously; And then the cell ID Cell-ID of definite interference base station and the pattern of pilot frequency sequence; And the pilot signal in the Almost Blank subframe of the interference base station that receives carried out interference eliminated, promote the reliability of subscriber equipment control channel, data channel or pilot detection.
Need to prove that the interference coordination mode that Fig. 2 (b) or Fig. 2 (c) just adopt interference base station is a kind of special case signal of MBSFN subframe or Almost Blank subframe, the signal transmission in MBSFN subframe or the Almost Blank subframe is not limited only to above-mentioned special case signal.
As shown in Figure 3, be example with the LTE system below, specify the interference processing method that the embodiment of the invention provides, comprising:
S31, interfered base station and interference base station carry out interference coordination, and interfered base station is from preset interference coordination schemes set, for interference base station is confirmed the interference coordination schemes that interference base station adopts;
In this step; Interfered base station and interference base station pass through interference coordination; Interfered base station can be dependent on the load state of system neatly; Annoyance level; Disturb actual conditions and the predefined definite rules of interference coordination schemes such as ability that suppress requirement or UE corresponding to different actual conditions; In the whole interference coordination schemes that from preset interference coordination schemes set, promptly can carry out; For interference base station has been confirmed best interference coordination schemes under the current actual conditions; Like this; Can effectively coordinate and suppress interference; Promoted and disturbed the performance that suppresses; Effectively guarantee the reliability of Channel Transmission, the level of resources utilization that has improved system.
S32, interfered base station generate and the corresponding interference coordination information of confirming of interference coordination schemes;
Wherein, include in the interference coordination information that the interference coordination mode is indicated, the indication of interference coordination pattern and time shift indication etc.;
The interference coordination mode is indicated the interference coordination mode of indicating said interference base station to adopt of being used to; Carrier aggregation mode for example; Control channel shrinks (shrinking) mode; Configuration MBSFN subframe mode; Configuration Almost Blank subframe mode; Time shift mode, or the combination in any mode of aforesaid way and alternate manner etc.
The indication of interference coordination pattern is used to indicate said interference base station to carry out the resource of interference coordination; For example, when selecting configuration Almost Blank subframe mode, the indication of interference coordination pattern can be used for indicating which sub-frame configuration is an Almost Blank subframe in each radio frames; When selecting configuration MBSFN subframe mode, the indication of interference coordination pattern can be used for indicating which sub-frame configuration is the MBSFN subframe in each radio frames.
The time shift indication is used to indicate the time shift value of interference base station with respect to interfered base station.Time shift indication can indicate and move to left or move to right, promptly with respect to interfered base station; The transmission time of interference base station is in advance or lags behind; The sub-frame level carry digit of the transmission time of interference base station and OFDM symbol level carry digit have also been indicated with respect to interfered base station in the time shift indication.
Table one: the format sample of interference coordination information
| Interference coordination information | Content | Bit number |
| First field | The interference coordination mode is indicated | One or more |
| Second field | The indication of interference coordination pattern | A plurality of |
| The 3rd field | The time shift indication | A plurality of |
Table two: the example of the interference coordination mode of first field indication of 1 bit
| Bit value | The interference coordination mode that interference base station adopted |
| 0 | Configuration MBSFN subframe |
| 1 | Configuration Almost blank subframe |
Concrete; Shown in table; Interference coordination information can comprise three fields; Wherein, first field carrying interference coordination mode is indicated, and is made up of one or more bits; Concrete bit number by in the network system the interference coordination mode that can adopt determine; 1 bit can be indicated two kinds of interference coordination modes, and bit value is that a kind of interference coordination mode is adopted in 0 indication, and bit value is that another kind of interference coordination mode is adopted in 1 indication.When having K kind interference coordination mode, need ceil (log
2(K)) the individual bit indication interference coordination mode that interference base station adopted, wherein function ceil (x) expression rounds up to x.Table two to table four is respectively the concrete example of the indicated interference coordination mode of first field of different bit numbers and bit value (being bit status); Certainly; The invention is not restricted to this, the indicated interference coordination mode of each bit value of first field can be provided with arbitrarily according to actual conditions.It is to be noted; The interference coordination mode that exists in more than communication system when the number of the bit value of first field; Remaining bit value can be set at the reservation mode, can be used for he with or use when increasing the interference coordination mode, for example be labeled as the bit value of reservation in the table five.
Table three: another example of the interference coordination mode of first field indication of 1 bit
| Bit value | The interference coordination mode that interference base station adopted |
| 0 | Configuration MBSFN subframe+time shift |
| 1 | Configuration Almost blank subframe+time shift |
Table four: the example of the interference coordination mode of first field indication of 2 bits
| The bit value of 2 bits | The interference coordination mode that interference base station adopted |
| ?00 | Configuration MBSFN subframe |
| ?01 | Configuration Almost blank subframe |
| ?10 | Configuration MBSFN subframe+time shift |
| ?11 | Configuration Almost blank subframe+time shift |
Concrete; Shown in table; Interference coordination information can comprise three fields; Wherein, first field carrying interference coordination mode is indicated, and is made up of one or more bits; Concrete bit number by in the network system the interference coordination mode that can adopt determine; 1 bit can be indicated two kinds of interference coordination modes, and bit value is that a kind of interference coordination mode is adopted in 0 indication, and bit value is that another kind of interference coordination mode is adopted in 1 indication.When having K kind interference coordination mode, need ceil (log
2(K)) the individual bit indication interference coordination mode that interference base station adopted, wherein function ceil (x) expression rounds up to x.Table two to table four is respectively the concrete example of the indicated interference coordination mode of first field of different bit numbers and bit value (being bit status); Certainly; The invention is not restricted to this, the indicated interference coordination mode of each bit value of first field can be provided with arbitrarily according to actual conditions.It is to be noted; The interference coordination mode that exists in more than communication system when the number of the bit value of first field; Remaining bit value can be set at the reservation mode, can be used for he with or use when increasing the interference coordination mode, for example be labeled as the bit value of reservation in the table five.
Table five: the example of the interference coordination mode of first field indication of 3 bits
| Bit value | The interference coordination mode that interference base station adopted |
| 000 | Carrier aggregation |
| 001 | Configuration MBSFN subframe |
| 010 | Configuration Almost blank subframe |
| 011 | Time shift |
| 100 | Configuration MBSFN subframe+time shift |
| 101 | Configuration Almost blank subframe+time shift |
| 110 | Control channel shrinks |
| 111 | Keep |
Second field carrying interference coordination pattern indication of interference coordination information can be made up of a plurality of bits.Somely disturb the interference coordination mode that Almost Blank subframe or Almost Blank subframe+time shift have been adopted in the base station, then second field can be made up of 10 bits, for example (b0; B1; B2, b3, b4; B5; B6, b7, b8; B9), wherein bi (i=0-9) bit is used for indicating the index of each radio frames of interference base station is whether the subframe of i is configured to Almost Blank subframe.Like bi=0, represent that then index is that the subframe of i is not configured to Almost Blank subframe; Bi=1 representes that then index is that the subframe of i is configured to Almost Blank subframe, and vice versa.Similarly, some interference coordination modes of disturbing base station employing MBSFN subframe or MBSFN subframe+time shift, then second field can be made up of 6 bits, for example (b0, b1, b2, b3, b4, b5).The interference coordination pattern indication of 6 bits can be applied to FDD and TDD system, and for the FDD system, the indication of the interference coordination pattern of 6 bits is used to indicate the subframe of removing in each radio frames outside 0,4,5,9 subframes, and whether interfered base station is configured to the MBSFN subframe; For the TDD system, preceding 5 bits are used to indicate in each radio frames except that 0,2; 4,5,9 subframes are outer (for the TDD system; Subframe 2 is sub-frame of uplink always, can not be configured to the MBSFN subframe) subframe whether interfered base station is configured to the MBSFN subframe, last 1 bit keeps.Certainly, for the TDD system, the indication of interference coordination pattern also can be made up of 5 bits, and for example (b0, b1, b2, b3 b4), is used to indicate in each radio frames and removes 0,2,4,5, and whether interfered base station is configured to the MBSFN subframe to the outer subframe of 9 subframes.No matter to adopt 6 bits still be 5 bits to the indication of interference coordination pattern, the bi bit is used for indicating the interference base station radio frames configurable for the index of MBSFN subframe be whether the subframe of i is configured to the MBSFN subframe.Like bi=0, represent that then index is configurablely not to be configured to the MBSFN subframe for the i subframe of MBSFN subframe; Bi=1 representes that then index is configurable for the i subframe of MBSFN subframe is configured to the MBSFN subframe, and vice versa.
Table six: the format sample of interference coordination information the 3rd field
| The 3rd field | Content | Bit number |
| First son field | The sign that moves to right moves to left | 1 |
| Second son field | Subframe displacement indication | One or more |
| The 3rd son field | Symbol displacement indication | One or more |
The 3rd field carrying time shift indication of interference coordination information; Form by a plurality of bits; Shown in table six; The 3rd field can be divided into three sub-fields, and first son field is made up of 1 bit, and indication is with respect to interfered base station; The transmission time of interference base station moves to left or moves to right; Bit value is 1 can represent and move to left, and bit value is 0 can represent and move to right, and vice versa.Certainly, the 3rd field also can be constituted by one or more son fields in three sub-fields.
Second son field of the 3rd field can be made up of one or more bits; Indicated with respect to interfered base station, the sub-frame level number of shift bits of the transmission time of interference base station, each bit value is represented a sub-frame level number of shift bits; For example; Second son field is made up of a bit, and bit value is 0 o'clock, has indicated with respect to interfered base station; Displacement 1 sub-frame of the transmission time of interference base station; Bit value is 1 o'clock, has indicated with respect to interfered base station displacement 5 sub-frame of the transmission time of interference base station.
The 3rd son field of the 3rd field can be made up of one or more bits, indicated with respect to interfered base station, and on the basis of sub-frame level displacement, the OFDM symbol level number of shift bits of the transmission time of interference base station.Shown in table seven, the bit value that each is different is represented different OFDM symbol number of shift bits.
Table seven: the example of the OFDM symbol number of shift bits of the 3rd son field indication of 2 bits
| Bit value | OFDM symbol carry digit |
| 00 | The 0OFDM symbol |
| 01 | The |
| 10 | The |
| 11 | The 3OFDM symbol |
For example; The 3rd field of interference coordination information is 0110; The displacement of first bit 0 express time is to move to right, second bit 1 expression, 5 sub-frame that have been shifted, and the state of the three or four bit is 10 to be illustrated in 2 the OFDM symbols that have been shifted again on the basis of subframe displacement.
It is to be noted; The order of each field of interference coordination information is not limit; The meaning of the bit value representative of each field can be provided with arbitrarily according to actual conditions; No matter adopt the interference coordination information of which kind of form, only need to guarantee that UE under interfered base station, interference base station and the interfered base station knows the rule of interference coordination information altogether gets final product.
S33, interfered base station sends to the UE in interference base station and the interfered base station with interference coordination information;
Like this, make interference base station confirm interference coordination schemes according to interference coordination information, subscriber equipment can carry out interference eliminated to the interference signal of interference base station according to interference coordination schemes in the interfered base station.
S34, interfered base station have carried out the strongly disturbing UE scheduling of the base station that is interfered in the interfered base station on the subframe or running time-frequency resource of interference coordination at interference base station according to the interference coordination schemes of interference base station.
S35, interference base station receives the interference coordination information that interfered base station sends;
S36, interference base station confirm the interference coordination schemes that is adopted according to interference coordination information.
Be interference base station according to the interference coordination mode of interference coordination information indicate, the indication of interference coordination pattern and interference base station be with respect to the time shift indication of interfered base station; Confirm the interference coordination mode of employing, information such as interference coordination pattern under the certain interference coordination mode and time shift value.
S37, interference base station handle interference according to interference coordination schemes;
Be interference base station according to the interference coordination mode under the interference coordination schemes, information such as interference coordination pattern and time shift value are disturbed processing.
S38, UE receives the interference coordination information that interfered base station sends;
S39, UE are according to interference coordination information, and the resource scheduling information of combination oneself, and the interference signal of interference base station is carried out interference eliminated.
Wherein, UE carries out interference eliminated to the interference signal of interference base station and comprises: the master who detects interference base station reaches auxiliary synchronous signals synchronously; And then the cell ID Cell-ID of definite interference base station and the pattern of pilot frequency sequence, thereby interference eliminated is carried out in the interference that the pilot signal of the interference base station that receives causes.
As shown in Figure 4, continue below to specify the interference processing method that the embodiment of the invention provides, comprising:
S41, interference base station and interfered base station carry out interference coordination, and interference base station is confirmed the interference coordination schemes that interference base station adopts from preset interference coordination schemes set;
In this step; Interference base station and interfered base station pass through interference coordination; Interference base station can be dependent on actual conditions and the predefined definite rule of scheme corresponding to different actual conditions neatly; From preset interference coordination schemes set; Confirmed under the current actual conditions the best interference coordination schemes that self adopts; Like this; Can effectively coordinate and suppress interference; Promoted and disturbed the performance that suppresses; Effectively guarantee the reliability of Channel Transmission, the level of resources utilization that has improved system.
S42, interference base station generate and the corresponding interference coordination information of confirming of interference coordination schemes.
Wherein, said interference coordination information comprises that the interference coordination mode indicates, and indication of interference coordination pattern and interference base station can adopt the described interference coordination information format of preamble with respect to the time shift indication of interfered base station etc., repeat no more here.
S43, interference base station sends to interfered base station with interference coordination information;
Interfered base station can be confirmed the interference coordination schemes that interference base station adopts according to interference coordination information.
S44, interference base station adopt corresponding interference coordination mode, and information such as interference coordination pattern under the corresponding interference coordination mode and time shift value are disturbed processing according to interference coordination schemes.
S45, interfered base station receives the interference coordination information that interference base station sends;
S46, interfered base station confirm the interference coordination schemes that interference base station adopts according to interference coordination information;
Promptly confirmed the interference coordination mode that interference base station adopts, the interference coordination pattern has promptly carried out the resource of interference coordination and with respect to the information such as time shift value of the transmission time of interfered base station;
S47; The interference coordination schemes that interfered base station adopts according to determined interference base station; The strongly disturbing UE scheduling of the base station that is interfered in the interfered base station has been carried out on the subframe or running time-frequency resource of interference coordination at interference base station, and interference coordination information has been sent the UE in the interfered base station;
Interfered base station can pass through Physical Broadcast Channel, and the mode of Dynamic Broadcast Channel and the proprietary signaling of RRC sends to the UE in the interfered base station with interference coordination information.
S48, UE receives the interference coordination information that interfered base station sends;
S49, UE are according to interference coordination information, and the resource scheduling information of combination oneself, and the interference signal of interference base station is carried out interference eliminated.
Wherein, UE carries out interference eliminated to the interference signal of interference base station and comprises: the master who detects interference base station reaches auxiliary synchronous signals synchronously; And then the cell ID Cell-ID of definite interference base station and the pattern of pilot frequency sequence, thereby interference eliminated is carried out in the interference that the pilot signal of the interference base station that receives causes.
It is pointed out that in the interference processing method that adopts the embodiment of the invention to provide interfered base station and interference base station all can be the node of macro base station, low transmitting power base station LPN or other type.In addition, under the prerequisite that does not produce ambiguity, the notion of base station described in this paper can be equal to the sub-district.
Accordingly, embodiments of the invention also provide a kind of interference processing unit 1, can be used as interfered base station or interference base station in the communication system, as shown in Figure 5, comprising:
Processing unit 11, according to interference coordination schemes, the processing of disturbing.
The interference processing unit 1 that the embodiment of the invention provides; Disturb when handling; Can be according to load state; Actual conditions such as disturbance regime and interference inhibition degree; In can adopting the interference coordination schemes set that promptly can carry out; Confirm the interference coordination schemes that interference base station is adopted flexibly; That is: can select the best interference coordination schemes of relative actual conditions; Therefore; Can effectively coordinate and suppress interference; Promoted and disturbed the performance that suppresses; Effectively guarantee the reliability of Channel Transmission, improved the level of resources utilization of system and the overall performance of system.
Wherein, confirm that unit 10 can specifically be used for suppressing requirement according to load state, annoyance level, interference, or the actual conditions such as ability of subscriber equipment, from preset interference coordination schemes set, confirm the interference coordination schemes that interference base station adopts.Certainly, confirm that unit 10 also can confirm the interference coordination schemes that interference base station adopts according to other actual conditions, do not do qualification here.
Further; As shown in Figure 6; Disturb processing unit 1 also to comprise transmitting element 12; Be used for notifying subscriber equipment to the interfered base station service with the interference coordination schemes that said interference base station adopts; The subscriber equipment of said interfered base station service can carry out interference eliminated further to the interference signal of said interference base station according to said interference coordination schemes, promotes to disturb rejection.
As shown in Figure 7, disturb processing unit 1 also can further comprise:
At this moment, transmitting element 12 also is used for interference coordination information is sent to other interference coordination devices, so that said other interference coordination devices are confirmed said interference coordination schemes according to said interference coordination information, and the processing of disturbing according to said interference coordination schemes.
Like this; No matter disturb processing unit 1 as interfered base station or interference base station; All can be after the interference coordination schemes of initiatively confirming interference base station; This scheme is notified to interference base station corresponding with it or interfered base station, guaranteed that determined interference coordination schemes known by interfered base station and interference base station altogether.
In addition, as shown in Figure 8, disturb processing unit 1 also can further comprise:
Acquiring unit 14 is used to obtain interference coordination information, and said interference coordination information is that other interference coordination devices produce according to the interference coordination schemes of from preset interference coordination schemes set, confirming;
At this moment, confirm unit 10, also be used for, confirm the interference coordination schemes that said interference base station adopts according to said interference coordination information.
Like this; No matter disturb processing unit 1 as interfered base station or interference base station; All can after the interfered base station corresponding with it or interference base station are initiatively confirmed interference coordination schemes that interference base station adopts, know this scheme, guarantee that interference coordination schemes known by interfered base station and interference base station altogether.That is: no matter disturb processing unit 1 as interfered base station or interference base station, confirm that unit 10 all can confirm the interference coordination schemes of interference base station through dual mode, one of which is confirmed the interference coordination schemes of interference base station voluntarily; Its two, 14 that obtained through acquiring unit, corresponding with disturbing processing unit 1 interfered base station or the corresponding interference coordination information of the determined interference coordination schemes of interference base station are confirmed the interference coordination schemes of interference base station employing.
Wherein, interference coordination schemes comprises the interference coordination mode that interference base station adopts, and also comprises the transmission rule that other interference base stations such as the resource of having carried out interference coordination under the specific interference coordination mode that is adopted and time shift value need adopt.
The interference coordination mode is the major technique that is adopted that interference base station carries out interference coordination; An interference coordination schemes; The interference coordination mode comprises at least a; Carrier aggregation mode for example; Control channel shrinks (shrinking) mode; Configuration MBSFN subframe; Configuration Almost Blank subframe; Make the displacement on the life period between the transmission time of transmission time and interfered base station of interference base station; And the combination of above-mentioned several modes and other interference coordination mode etc., do not limit in the embodiment of the invention.
The interference coordination information corresponding with interference coordination schemes comprises that the interference coordination mode is indicated, the interference coordination pattern is indicated and the time shift indication; Wherein: said interference coordination mode is indicated the interference coordination mode of indicating said interference base station to adopt of being used to; Said interference coordination pattern indication is used to indicate said interference base station to carry out the resource of interference coordination; Said time shift indication is used to indicate the time shift value of said interference base station with respect to interfered base station.Interference coordination information can adopt the described structure of preamble, repeats no more here.
Accordingly, embodiments of the invention also provide a kind of interference processing unit 2, can be used as the UE in the communication system, as shown in Figure 9, comprising:
Receiving element 20 is used to receive the interference coordination schemes that interference base station adopts;
Disturb processing unit 21, be used for, the interference signal of said interference base station is carried out interference eliminated according to said interference coordination schemes.
The interference processing unit 2 that the embodiment of the invention provides can carry out further interference eliminated to the interference signal of said interference base station according to the interference coordination schemes of interference base station employing, guarantees the reliability of Channel Transmission, and then the overall performance of effective elevator system.
Wherein, the interference coordination schemes that receiving element 20 receives is the corresponding interference coordination information of interference coordination schemes, and said interference coordination information can adopt the described interference coordination information of preamble, repeats no more here.
Wherein, The master who disturbs processing unit 21 can detect interference base station reaches auxiliary synchronous signals synchronously; And then the cell ID Cell-ID of definite interference base station and the pattern of pilot frequency sequence, thereby interference eliminated is carried out in the interference that the pilot signal of the interference base station that receives causes.
Accordingly; The embodiment of the invention also provides a kind of interference treatment system; As shown in figure 10; Comprise interfered base station 4 and interference base station 5; Wherein, Interfered base station 4 or interference base station 5 are confirmed the interference coordination schemes that interference base station 5 adopts from preset interference coordination schemes set, said interference coordination schemes set comprises at least two kinds of interference coordination schemes;
Interfered base station and interference base station be according to said interference coordination schemes, the processing of disturbing.
If the interference coordination schemes that interference base station 5 adopts is confirmed by interfered base station 4; Interfered base station 4 will generate and the corresponding interference coordination information of confirming of interference coordination schemes; This interference coordination information is sent to interference base station 5, and interference base station 5 can be confirmed the interference coordination schemes of employing according to the interference coordination information that receives; And; If the interference coordination schemes that interference base station 5 adopts is confirmed by interference base station 5 voluntarily; Interference base station 5 will generate and the corresponding interference coordination information of confirming of interference coordination schemes; This interference coordination information is sent to interfered base station 4, and interfered base station 4 can be confirmed the interference coordination schemes that interference base station 5 adopts according to the interference coordination information that receives.
Wherein, Interfered base station 4 also is used for the interference coordination information that said interference coordination schemes is corresponding and notifies the subscriber equipment to interfered base station 4 services; So that the subscriber equipment of interfered base station 4 services can carry out interference eliminated to the interference signal of interference base station 5 according to said interference coordination information.
The interference treatment system that the embodiment of the invention provides; Interfered base station can carry out interference coordination with interference base station; Can be according to load state; Annoyance level; Disturb and suppress requirement; Or the actual conditions such as ability of UE; From preset interference coordination schemes set; Confirm the interference coordination schemes that interference base station is adopted flexibly; That is: can select the best interference coordination schemes of relative actual conditions; Therefore; Can effectively handle and suppress interference; Promoted and disturbed the performance that suppresses, effectively guaranteed the reliability of Channel Transmission, improved the level of resources utilization of system and the overall performance of system.
Though it is pointed out that the embodiment of the invention is that example is set forth with the LTE system, the invention is not restricted to this, the embodiment of the invention is equally applicable to other wireless communication system.
One of ordinary skill in the art will appreciate that: all or part of flow process that realizes said method embodiment can be accomplished through the relevant hardware of computer program instructions; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (15)
1. one kind is disturbed processing method, it is characterized in that, comprising:
From preset interference coordination schemes set, confirm the interference coordination schemes that interference base station adopts, said interference coordination schemes set comprises at least two kinds of interference coordination schemes;
According to the interference coordination schemes that said interference base station adopts, the processing of disturbing.
2. interference processing method according to claim 1 is characterized in that, and is said from preset interference coordination schemes set, confirms that the interference coordination schemes that interference base station adopts comprises:
Suppress requirement according to load state, annoyance level, interference, or the ability of subscriber equipment, from preset interference coordination schemes set, confirm the interference coordination schemes that interference base station adopts.
3. interference processing method according to claim 1 and 2 is characterized in that, also comprises:
Notify subscriber equipment with the interference coordination schemes that said interference base station adopts, so that the subscriber equipment of said interfered base station service can carry out interference eliminated to the interference signal of said interference base station according to said interference coordination schemes to the interfered base station service.
4. interference processing method according to claim 1 is characterized in that,
The interference coordination schemes that said definite interference base station adopted comprises:
From preset interference coordination schemes set, interfered base station is confirmed the interference coordination schemes that said interference base station adopts;
The said interference coordination schemes that adopts according to said interference base station, the processing of disturbing comprises:
The interference coordination schemes that said interfered base station adopts according to said interference base station, the processing of disturbing.
5. interference processing method according to claim 4 is characterized in that, further comprises:
Said interfered base station generates the interference coordination information corresponding with said interference coordination schemes;
Said interfered base station sends to said interference base station with said interference coordination information, so that said interference base station is confirmed said interference coordination schemes according to said interference coordination information, and the processing of disturbing according to said interference coordination schemes.
6. interference processing method according to claim 1 is characterized in that,
The interference coordination schemes that said definite interference base station adopted comprises:
Interfered base station receives the interference coordination information that said interference base station is confirmed, said interference coordination information is that the said interference coordination schemes that said interference base station is confirmed from preset interference coordination schemes set according to this interference base station produces; With
Said interfered base station is confirmed said interference coordination schemes according to said interference coordination information;
The said interference coordination schemes that adopts according to said interference base station, the processing of disturbing comprises:
The interference coordination schemes that said interfered base station adopts according to said interference base station, the processing of disturbing.
7. interference processing method according to claim 1 is characterized in that,
The interference coordination schemes that said definite interference base station adopted comprises:
From preset interference coordination schemes set, the definite interference coordination schemes that is adopted of said interference base station;
The said interference coordination schemes that adopts according to said interference base station, the processing of disturbing comprises:
The interference coordination schemes that said interference base station adopts according to said interference base station, the processing of disturbing.
8. interference processing method according to claim 7 is characterized in that, further comprises:
Said interference base station generates the interference coordination information corresponding with said interference coordination schemes;
Said interference base station sends to interfered base station with said interference coordination information, so that said interfered base station is confirmed said interference coordination schemes according to said interference coordination information, and the processing of disturbing according to said interference coordination schemes.
9. interference processing method according to claim 1 is characterized in that,
The interference coordination schemes that said definite interference base station adopted comprises:
Said interference base station receives the interference coordination information that interfered base station is confirmed, said interference coordination information is that the said interference coordination schemes that said interfered base station is confirmed from preset interference coordination schemes set according to this interfered base station produces; With
Said interference base station is confirmed said interference coordination schemes according to said interference coordination information;
The said interference coordination schemes that adopts according to said interference base station, the processing of disturbing comprises:
The interference coordination schemes that said interference base station adopts according to said interference base station, the processing of disturbing.
10. according to claim 5,6,8 or 9 each described interference processing methods, it is characterized in that said interference coordination information comprises that the interference coordination mode is indicated, the interference coordination pattern is indicated and the time shift indication; Wherein:
Said interference coordination mode is indicated the interference coordination mode of indicating said interference base station to adopt of being used to;
Said interference coordination pattern indication is used to indicate said interference base station to carry out the resource of interference coordination;
Said time shift indication is used to indicate the time shift value of said interference base station with respect to interfered base station.
11. an interference processing unit is characterized in that, comprising:
Confirm the unit, be used for confirming the interference coordination schemes that interference base station adopts that said interference coordination schemes set comprises at least two kinds of interference coordination schemes from preset interference coordination schemes set;
Processing unit is according to the interference coordination schemes that said interference base station adopts, the processing of disturbing.
12. interference processing unit according to claim 11; It is characterized in that; Said definite unit; Specifically be used for suppressing requirement according to load state, annoyance level, interference; Or the ability of subscriber equipment; From preset interference coordination schemes set, confirm the interference coordination schemes that interference base station adopts.
13. according to claim 11 or 12 described interference processing unit; It is characterized in that; Also comprise transmitting element; The subscriber equipment of said interfered base station service is used for notifying subscriber equipment, so that can carry out interference eliminated to the interference signal of said interference base station according to said interference coordination schemes to the interfered base station service with the interference coordination schemes that said interference base station adopts.
14., it is characterized in that this device further comprises according to claim 11 or 12 described interference processing unit:
Generation unit is used to generate the interference coordination information corresponding with said interference coordination schemes;
Said transmitting element; Also be used for said interference coordination information is sent to other interference coordination devices; So that said other interference coordination devices are confirmed said interference coordination schemes according to said interference coordination information, the processing of disturbing according to said interference coordination schemes.
15. interference processing unit according to claim 11 is characterized in that, this device further comprises:
Acquiring unit is used to obtain interference coordination information, and said interference coordination information is that other interference coordination devices produce according to the said interference coordination schemes of from preset interference coordination schemes set, confirming;
Said definite unit also is used for according to said interference coordination information, confirms the interference coordination schemes that said interference base station adopts.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127310A1 (en) * | 2012-03-01 | 2013-09-06 | 华为技术有限公司 | Interference coordination method and device |
| WO2013139289A1 (en) * | 2012-03-21 | 2013-09-26 | 华为技术有限公司 | Interference coordination method between access points in communication system and access point device |
| WO2013177774A1 (en) * | 2012-05-31 | 2013-12-05 | Qualcomm Incorporated | Enb to enb interference mitigation in asymmetric lte deployment |
| WO2013178037A1 (en) * | 2012-05-31 | 2013-12-05 | Qualcomm Incorporated | Interference mitigation in asymmetric lte deployment |
| WO2014121432A1 (en) * | 2013-02-05 | 2014-08-14 | 华为技术有限公司 | Signal receiving method, sending method, and device |
| WO2015184588A1 (en) * | 2014-06-03 | 2015-12-10 | 华为技术有限公司 | Low power node, communication system and information transmission method |
| CN105164948A (en) * | 2013-04-05 | 2015-12-16 | 华为技术有限公司 | Method for inter-cell interference coordination |
| CN105207755A (en) * | 2014-06-09 | 2015-12-30 | 中国移动通信集团公司 | Air interface synchronization method, base station, and system |
| WO2016161600A1 (en) * | 2015-04-09 | 2016-10-13 | 华为技术有限公司 | Parameter information transmission method and device, base station and interfered user equipment |
| CN106209301A (en) * | 2015-04-30 | 2016-12-07 | 电信科学技术研究院 | A kind of interference information indicating method, interference delet method and device |
| WO2017032202A1 (en) * | 2015-08-25 | 2017-03-02 | 电信科学技术研究院 | Control signaling sending and receiving method, network device, and receiving device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024614A2 (en) * | 2007-08-22 | 2009-02-26 | Nokia Siemens Networks Oy | Exchange of scheduling strategies for interference coordination |
| CN101777956A (en) * | 2009-01-14 | 2010-07-14 | 普天信息技术研究院有限公司 | Method for coordinating semi-static interference |
| WO2010080919A2 (en) * | 2009-01-07 | 2010-07-15 | Qualcomm Incorporated | Carrier reuse in a multicarrier wireless communication environment |
| CN102065550A (en) * | 2009-11-12 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for reducing inter-cell interference of orthogonal frequency division multiplexing system and terminal thereof |
-
2010
- 2010-07-31 CN CN201010251273.5A patent/CN102348216B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024614A2 (en) * | 2007-08-22 | 2009-02-26 | Nokia Siemens Networks Oy | Exchange of scheduling strategies for interference coordination |
| WO2010080919A2 (en) * | 2009-01-07 | 2010-07-15 | Qualcomm Incorporated | Carrier reuse in a multicarrier wireless communication environment |
| CN101777956A (en) * | 2009-01-14 | 2010-07-14 | 普天信息技术研究院有限公司 | Method for coordinating semi-static interference |
| CN102065550A (en) * | 2009-11-12 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for reducing inter-cell interference of orthogonal frequency division multiplexing system and terminal thereof |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103297980B (en) * | 2012-03-01 | 2016-12-14 | 华为技术有限公司 | The method and apparatus of interference coordination |
| CN103297980A (en) * | 2012-03-01 | 2013-09-11 | 华为技术有限公司 | Method and device for interference coordination |
| CN106230542B (en) * | 2012-03-01 | 2020-08-25 | 华为技术有限公司 | Method and device for interference coordination |
| WO2013127310A1 (en) * | 2012-03-01 | 2013-09-06 | 华为技术有限公司 | Interference coordination method and device |
| CN106230542A (en) * | 2012-03-01 | 2016-12-14 | 华为技术有限公司 | The method and apparatus of interference coordination |
| WO2013139289A1 (en) * | 2012-03-21 | 2013-09-26 | 华为技术有限公司 | Interference coordination method between access points in communication system and access point device |
| WO2013177774A1 (en) * | 2012-05-31 | 2013-12-05 | Qualcomm Incorporated | Enb to enb interference mitigation in asymmetric lte deployment |
| WO2013178037A1 (en) * | 2012-05-31 | 2013-12-05 | Qualcomm Incorporated | Interference mitigation in asymmetric lte deployment |
| US10009904B2 (en) | 2012-05-31 | 2018-06-26 | Qualcomm Incorporated | Interference mitigation in asymmetric LTE deployment |
| WO2014121432A1 (en) * | 2013-02-05 | 2014-08-14 | 华为技术有限公司 | Signal receiving method, sending method, and device |
| CN104106278A (en) * | 2013-02-05 | 2014-10-15 | 华为技术有限公司 | Signal receiving method, sending method, and device |
| CN105164948B (en) * | 2013-04-05 | 2018-03-09 | 华为技术有限公司 | Method for Inter-Cell Interference Coordination |
| CN105164948A (en) * | 2013-04-05 | 2015-12-16 | 华为技术有限公司 | Method for inter-cell interference coordination |
| WO2015184588A1 (en) * | 2014-06-03 | 2015-12-10 | 华为技术有限公司 | Low power node, communication system and information transmission method |
| CN105207755A (en) * | 2014-06-09 | 2015-12-30 | 中国移动通信集团公司 | Air interface synchronization method, base station, and system |
| CN105207755B (en) * | 2014-06-09 | 2019-10-11 | 中国移动通信集团公司 | A kind of air interface synchronization method, base station and system |
| WO2016161600A1 (en) * | 2015-04-09 | 2016-10-13 | 华为技术有限公司 | Parameter information transmission method and device, base station and interfered user equipment |
| CN106209301A (en) * | 2015-04-30 | 2016-12-07 | 电信科学技术研究院 | A kind of interference information indicating method, interference delet method and device |
| WO2017032202A1 (en) * | 2015-08-25 | 2017-03-02 | 电信科学技术研究院 | Control signaling sending and receiving method, network device, and receiving device |
| US10778397B2 (en) | 2015-08-25 | 2020-09-15 | China Academy Of Telecommunications Technology | Control signaling transmission method, control signaling reception method, network device and reception device |
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