CN102638805B - A kind of promotion heterogeneous network disturbance coordination method and equipment - Google Patents
A kind of promotion heterogeneous network disturbance coordination method and equipment Download PDFInfo
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- CN102638805B CN102638805B CN201110037007.7A CN201110037007A CN102638805B CN 102638805 B CN102638805 B CN 102638805B CN 201110037007 A CN201110037007 A CN 201110037007A CN 102638805 B CN102638805 B CN 102638805B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a kind of promotion heterogeneous network disturbance coordination method, comprise the steps: that low power nodes LPN obtains spatial positional information at least one macrocell coverage area for this LPN；LPN is according to the mark of at least one macrocell described, by this LPN spatial positional information notice at least one macrocell described at least one macrocell coverage area described.The invention also discloses other promotion heterogeneous network disturbance coordination method, and promote the device of heterogeneous network interference coordination.The present invention program can promote macro base station to use different spatial positional informations to reduce strong jamming each other from LPN.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of promote heterogeneous network disturbance coordination method and
Equipment.
Background technology
LTE-A introduces heterogeneous network technology.Heterogeneous network refers to low power nodes (LPN, Low Power
Node) it is placed in macro base station coverage area by cloth, form the heterogeneous system with the different node types covering.
Owing to the geographic distance between access point and the user equipment (UE) being serviced is reduced, can be effective
Lifting throughput of system and network whole efficiency.Macro base station coverage by original single subdistrict, due to
Laying some LPN and splitting into some Microcells, same frequency range is re-used several times, and system is obtained in that
Huge cell splitting gain, but owing to the coverage of LPN is completely in the coverage of macro base station
In, thus there will be substantial amounts of edge customer, how solving the interference to LPN cell for the macrocell becomes mesh
The problem of the main consideration of front LTE-A heterogeneous network technology.
Prior art solves the method to LPN area interference for the macrocell and is broadly divided into time domain and frequency domain two
Big class.
The method of time domain is macrocell by the sub-frame configuration on some position become approximation blank subframe (ABS,
Almost Blank Subframe), in these approximation blank subframe, macrocell will not send data.
So, subframe experienced interference on correspondence position for the Microcell will be very little, on described correspondence position
Subframe as interference coordination subframe.Microcell will be able to be in for it in the subframe of these interference coordinations
The UE of cell edge provides service.
The method of frequency domain is very similar with the method for time domain.Macrocell some frequency range in its system bandwidth
On do not launch data, so, Microcell experienced interference in corresponding frequency range is very little, described frequency range
As interference coordination frequency range.Microcell can be in cell edge for it in the frequency range of these interference coordinations
UE provide service.
As can be seen here, in prior art, macrocell, in order to avoid the strong jamming to Microcell, needs one
Not launching data in a little time domains or frequency domain resource, in other words, it is disabled that macrocell has part resource,
This can affect the performance of macrocell, the especially performance at data channel.
Of the prior art another prevent macrocell to the strongly disturbing method of Microcell be allow small
The corresponding LPN in district macro base station corresponding from macrocell uses different spatial positional informations (such as PMI)
It is scheduling launching.But how to ensure that macro base station uses different PMI just to reduce interference from LPN
Become a problem.
Content of the invention
Embodiments provide a kind of heterogeneous network disturbance coordination method and equipment of promoting, grand to promote
Base station uses different spatial positional informations to reduce strong jamming each other from LPN.Described technical side
Case is as follows:
On the one hand, one is provided to promote heterogeneous network disturbance coordination method, comprising:
Low power nodes LPN obtains space bit confidence at least one macrocell coverage area for this LPN
Breath；
This LPN, according to the mark of at least one macrocell described, is covered by LPN at least one macrocell described
Spatial positional information notice at least one macrocell described in the range of lid.
On the other hand, another kind is provided to promote heterogeneous network disturbance coordination method, comprising:
Macrocell receives locus in described macrocell coverage area for this LPN from low power nodes LPN
Information；
Described macrocell obtains the channel condition information CSI after adjusting, the locus of the CSI after described adjustment
Information is different from spatial positional information in described macrocell coverage area for the described LPN；
Described macrocell does scheduled transmission according to the CSI after described adjustment.
On the other hand, providing a kind of low power nodes LPN, described LPN includes:
Spatial positional information acquisition module, for obtaining this LPN at least one macrocell coverage area
Spatial positional information；
Notification module, for the mark according at least one macrocell described, by described spatial positional information
Spatial positional information notice at least one macrocell described acquired in acquisition module.
On the other hand, providing a kind of macro cell base station, described macro cell base station includes:
Spatial positional information receiver module, for receiving this LPN at described macrocell from low power nodes LPN
Spatial positional information in coverage；
Channel condition information acquisition module, is used for the channel condition information CSI after obtaining adjustment, after described adjustment
CSI spatial positional information and spatial positional information in described macrocell coverage area for the described LPN not
With；
Scheduled transmission module, after the adjustment according to acquired in described channel condition information acquisition module
CSI does scheduled transmission.
As can be seen from the above technical solutions, a kind of LPN that the embodiment of the present invention proposes has acquisition space
Positional information ability, and acquired acquisition spatial positional information can be transferred to neighbours' macrocell；This
A kind of macro cell base station that bright embodiment proposes then can receive the spatial positional information from LPN, and root
Carry out interference coordination according to described spatial positional information, promote macro base station to use different locus from LPN
Information reduces strong jamming each other, the therefore running time-frequency resource without leaving some space, therefore, it is possible to have
The strong jamming to the Microcell in its coverage for the macrocell in the reduction heterogeneous network of effect, again can not simultaneously
Affect the utilization rate of macrocell running time-frequency resource.
The embodiment of the present invention also provides a kind of promotion heterogeneous network disturbance coordination method, comprising:
Low power nodes LPN in macrocell coverage area receives this macrocell that described macrocell sends
Spatial positional information scheduled within following a period of time；
Spatial positional information in macrocell coverage area for this LPN recording as described LPN and reception
When the described spatial positional information that arrives is identical, then priority scheduling is positioned at described LPN coverage center
UE。
The embodiment of the present invention also provides a kind of low power nodes LPN, and described LPN includes:
Spatial positional information receiver module, is used for receiving this macrocell of macrocell transmission when following one section
Interior scheduled spatial positional information；
Spatial positional information measurement module, for measuring space in macrocell coverage area for the described LPN
Positional information；
Dispatching user facility module, exists for this LPN recording when described spatial positional information measurement module
The institute that spatial positional information in macrocell coverage area receives with described spatial positional information receiver module
State spatial positional information identical when, then priority scheduling is positioned at the UE at described LPN coverage center.
By above technical scheme it can be seen that the space dispatched at macro base station of the LPN of the embodiment of the present invention
When positional information and the repetition of self space positional information, LPN coverage center described in priority scheduling
UE, owing to the UE at LPN coverage center is less by macro base station interference, does priority scheduling to it
Advantageously reduce the impact that interference brings.
Brief description
Fig. 1 is the stream that the embodiment of the present invention one proposes a kind of heterogeneous network disturbance coordination method based on space division
Journey schematic diagram；
Fig. 2 is the stream that the embodiment of the present invention two proposes a kind of heterogeneous network disturbance coordination method based on space division
Journey schematic diagram；
Fig. 3 is the stream that the embodiment of the present invention three proposes a kind of heterogeneous network disturbance coordination method based on space division
Journey schematic diagram；
Fig. 4 is the logic of a kind of LPN promoting heterogeneous network interference coordination that the embodiment of the present invention four proposes
Structured flowchart；
Fig. 5 is that the embodiment of the present invention five proposes a kind of macro cell base station promoting heterogeneous network interference coordination
Logical construction block diagram；
Fig. 6 is the logic knot that the embodiment of the present invention six proposes a kind of UE promoting heterogeneous network interference coordination
Structure block diagram；
Fig. 7 is the logic that the embodiment of the present invention seven proposes the another kind of LPN promoting heterogeneous network interference coordination
Structured flowchart.
Detailed description of the invention
For ease of the understanding to Summary, several possible tool to the present invention below in conjunction with the accompanying drawings
Body embodiment does detailed introduction, it should be noted that simply several possible tools of act set forth below
Body embodiment, rather than whole embodiments, those skilled in the art can obtain according to described embodiment
Other detailed description of the invention, some similar changes or equivalent, all should cover the guarantor in the present invention
Within the scope of protecting.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
The embodiment of the present invention one proposes the flow process of a kind of heterogeneous network disturbance coordination method based on space division such as
Shown in Fig. 1, comprise the steps:
Step 101:LPN judges whether current time is in the spatial positional information measurement moment, if it is not,
Then carry out prior art operation, and step 101 again；If so, step 102.
Described judgement can be to trigger in the measurement cycle according to systemic presupposition.It is emphasized that this
In measurement cycle of spatial positional information can be longer, for example by point, in units of hour or sky.
Described spatial positional information can be pre-coding matrix instruction (PMI, Precoding Matrix
Indicator) PMI and order instruction (RI, Rank Indicator) or are simultaneously comprised.
Step 102:LPN obtains the spatial positional information in N number of macrocell coverage area at its place.
The concrete grammar obtaining spatial positional information has a lot, below lifts several example:
If spatial positional information is PMI, it is thus achieved that locus in macrocell coverage area for the LPN
The method of information is as follows:
Method one:
LPN select from all UE self being serviced Reference Signal Received Power (RSRP,
Reference Signal Received Power) maximum that UE, configure its measurement by high-level signaling
The PMI of N number of interference neighbours' macrocell the strongest；Described N is the natural number pre-setting；
Measurement is obtained N number of PMI by this UE and corresponding macrocell mark (Cell_ID) reports
LPN；
N number of PMI and corresponding neighbours' macrocell thereof that this UE is reported by LPN are N number of at this as it
Spatial positional information in macrocell.
Method two:
It is grand little that LPN configures its N number of interference of all UE servicing measurement neighbours the strongest by high-level signaling
The PMI in district；Described N is the natural number being pre-configured with；
N number of PMI and corresponding Cell_ID thereof that measurement is obtained by UE report this LPN；
First LPN in all results reporting, finds N number of Cell_ID that occurrence number is most, will
The corresponding macrocell of described N number of Cell_ID is as the strongest N number of neighbours' macrocell of interference；Then by upper
In report result, each PMI corresponding to strong jamming cell reports quantity to be ranked up, and selects to report quantity
That many PMI is as spatial positional information in this strong jamming cell for this LPN.
If spatial positional information includes RI and PMI simultaneously, it is thus achieved that LPN is in macrocell coverage area
The method of spatial positional information as follows:
Method one:
LPN selects Reference Signal Received Power (RSRP) maximum from all UE self being serviced
That UE, configuring the N number of interference of its measurement neighbours' macrocell the strongest by high-level signaling may at each
RI value under optimal PMI；Described N is the natural number pre-setting；
Measurement is obtained each group RI and PMI of N number of interference macrocell and corresponding macrocell thereof by this UE
Mark (Cell_ID) reports LPN；
Each group RI and PMI and corresponding macrocell thereof that these are reported by LPN identify as it at this N
Spatial positional information in individual macrocell.
Method two:
It is grand little that LPN configures its N number of interference of all UE servicing measurement neighbours the strongest by high-level signaling
Optimal PMI under each possible RI value for the district；
Each group RI and PMI of N number of interference macrocell that measurement is obtained by UE and corresponding macrocell thereof
Mark Cell_ID reports service LPN；
First LPN finds the most N number of macrocell mark of occurrence number from all results reporting, will
Described N number of macrocell corresponding macrocell of mark is as the strongest N number of neighbours' macrocell of interference；Then will
In reported result, the PMI under every kind of RI corresponding to each strong jamming cell reports quantity to be ranked up, choosing
Select that PMI reporting quantity most and corresponding RI to combine as this LPN in this strong jamming cell
Spatial positional information.
It is right that the N number of spatial positional information determining is notified by step 103:LPN according to corresponding Cell_ID
The neighbours' macrocell answered.Advice method can be to be carried out by back haul link (backhaul) link, also
Other possible modes can be used.Described back haul link can be wired or wireless.
Step 104: neighbours' macrocell receives the spatial positional information of the LPN in its coverage, will
All or part spatial positional information (PMI (or PMI and RI)) is broadcasted in cell.
Step 105: the UE of neighbours' macrocell service receives the spatial positional information (PMI in broadcast
Or also comprise RI), when carrying out channel status estimation, in the spatial positional information that will receive
PMI (or PMI and RI) remove from alternative PMI (or PMI and RI), will estimate
It is grand little that the channel condition information (CSI, Channel State Information) obtaining feeds back to described neighbours
District.
Step 106: described neighbours' macrocell receives the CSI of UE feedback, and does scheduling according to this CSI
Penetrate.
The embodiment of the present invention and the flow process of a kind of heterogeneous network disturbance coordination method based on space division is proposed such as
Shown in Fig. 2, comprise the steps:
Step 201:LPN first determines whether whether current time is in the spatial positional information measurement moment.If
Not, then prior art operation is carried out, and step 201 again；If so, step 202.
Step 202:LPN obtains the spatial positional information in N number of macrocell coverage area at its place.
The N number of spatial positional information determining is passed through by step 203:LPN according to corresponding Cell_ID
Backhaul link notifies corresponding neighbours' macrocell；
Step 204: neighbours' macrocell receives the spatial positional information of the LPN in its coverage；
Step 205: the UE that neighbours' macrocell is serviced measures according to prior art and feeds back optimal
CSI；
Step 206: after neighbours' macrocell receives the CSI of UE feedback, to described channel condition information
Adjust as follows: if described channel condition information comprises the spatial positional information with the LPN being received
Identical spatial positional information, then again select another spatial positional information for UE, and recalculate
Corresponding channel quality instruction (CQI, Channel Quality Indicator)；If described channel status is believed
Breath does not comprise the spatial positional information identical with the spatial positional information of the LPN being received, does not then do and locate
Reason.
The described method reselecting another spatial information can have a lot, and below act one is simplest
Example: if spatial positional information comprises RI and PMI, then RI is constant, will select another PMI, this
The PMI of individual PMI and UE feedback is closest to so-called closest to referring to corresponding to PMI here
Radiation direction angle closest to.
The CQI that UE feeds back to macrocell is that the spatial positional information (PMI) selecting based on it is estimated
To SINR, at this moment launch owing to macrocell uses another PMI to do, it is therefore desirable to CQI is entered
Row is reruned, and according to the result after reruning, selects suitable modulating-coding speed.
Step 207: described neighbours' macrocell uses the CSI after adjusting to be scheduling launching.
The scheme of above example one and embodiment two is all LPN measurement space positional information, and by this sky
Between positional information be delivered to neighbours' macrocell, neighbours' macrocell is carried out interference coordination.Actually also permissible
In turn, by neighbours' macrocell measurement space positional information, and this spatial positional information is passed to neighbours
LPN, is carried out interference coordination by LPN, here it is the scheme that the embodiment of the present invention three proposes.
The embodiment of the present invention three proposes the flow process of a kind of heterogeneous network disturbance coordination method based on space division such as
Shown in Fig. 3, comprise the steps:
Step 301: the channel condition information that macrocell feeds back according to its UE being serviced determines its future
In a period of time, spatial positional information (PMI (or PMI and RI)) scheduled in each subframe.
For example: assume that this cell has 10 UE, feedback is come up 4 kinds of PMI (spatial information), this
When macrocell just within following a period of time, this 4 PMI of the employing circulating in order launch.Described
Following a period of time can be a few tens of milliseconds.
Step 302: this spatial positional information is covered model by backhaul link notice correspondence by macrocell
Neighbours LPN in enclosing；
Step 303: neighbours LPN receives this spatial positional information.
Step 304: the spatial positional information recording as described neighbours LPN is current with the macrocell receiving
When spatial positional information scheduled in moment is identical, represent that macrocell can produce strong jamming to this LPN, then
Priority scheduling those be positioned at the UE at LPN coverage center.And for the UE at LPN edge, permissible
Do not dispatch.Described LPN coverage center can be set according to the actual requirements by those skilled in the art
Fixed, it can be the region that the quality that UE is serviced by LPN is higher than certain thresholding, it is also possible to be spatially
Distance LPN region within the specific limits.UE and the LPN coverage at LPN coverage center
The UE at edge can when relative concept, if a UE1 is nearer than UE2 distance LPN, or institute
The signal quality (such as RSRP) stating UE1 is better than UE2, then UE1 can be and not right by priority scheduling
UE2 dispatches.
A kind of LPN promoting heterogeneous network interference coordination that the embodiment of the present invention four proposes, as shown in Figure 4,
Described LPN400 includes:
Spatial positional information acquisition module 401, is used for obtaining this LPN at least one macrocell coverage area
Interior spatial positional information；
Notification module 402, for the mark according at least one macrocell described, by described spatial positional information
Spatial positional information notice at least one macrocell described acquired in acquisition module.
It is preferred that described LPN farther includes:
Judge module 403, is used for judging whether current time is in the spatial positional information measurement moment, if so,
Then enable described spatial positional information acquisition module 401.
Described spatial positional information is specifically divided into two classes, the first kind, and spatial positional information is pre-coding matrix instruction
PMI；Equations of The Second Kind, spatial positional information is PMI and RI.
The inside of described spatial positional information acquisition module 401 can be divided into dispensing unit, receiving unit and space
Positional information arranges unit.According to the difference of spatial positional information type, the concrete function of described three unit
Also different.
For first kind spatial positional information, described spatial positional information acquisition module may include that
First dispensing unit, for selecting reference signal to receive work(from all UE that described LPN is serviced
That maximum UE of rate RSRP, configures the N number of interference of its measurement neighbours' macrocell the strongest by high-level signaling
PMI；
First receiving unit, for receiving N number of PMI and the correspondence thereof that the maximum UE of described RSRP reports
Neighbours' macrocell mark；
First spatial positional information arranges unit, for by described first receiving unit receive N number of PMI and
Its corresponding neighbours' macrocell mark is as spatial positional information in this N number of macrocell for the LPN.
Or, described spatial positional information acquisition module includes:
Second dispensing unit, for being configured all UE measurement N of described LPN service by high-level signaling
The PMI of individual interference neighbours' macrocell the strongest；
Second receiving unit, for receiving PMI and the corresponding macrocell mark thereof that UE reports；
Second space positional information arranges unit, for all the reporting in described second receiving unit reception
Result in find the most N number of macrocell mark of occurrence number, by corresponding for described N number of macrocell mark
Macrocell as N number of strong jamming neighbours' macrocell；And by grand little for each strong jamming neighbours in reported result
PMI corresponding to district reports quantity to be ranked up, and selects that PMI reporting quantity most as this
Spatial positional information in this strong jamming cell for the LPN.
For Equations of The Second Kind spatial positional information, described spatial positional information acquisition module includes:
3rd dispensing unit, for selecting RSRP maximum from all UE that described LPN is serviced
That UE, configuring the N number of interference of its measurement neighbours' macrocell the strongest by high-level signaling may at each
RI value under optimal PMI；
3rd receiving unit, for receive N number of interference macrocell that described UE reports each group RI and
PMI and corresponding macrocell mark thereof；
3rd spatial positional information arranges unit, for each group RI and PMI receiving the 3rd receiving unit
And corresponding macrocell identifies as its spatial positional information in this N number of macrocell.
Or, described spatial positional information acquisition module includes:
4th dispensing unit, for being configured all UE measurement N of described LPN service by high-level signaling
Optimal PMI under each possible RI value for the individual interference neighbours' macrocell the strongest；
4th receiving unit, for receive the interference macrocell that UE reports each group RI and PMI and
Corresponding macrocell identifies；
4th spatial positional information arranges unit, for all knots reporting receiving the 4th receiving unit
Find N number of macrocell mark that occurrence number is most in Guo, described N number of macrocell is identified corresponding grand
Cell is as disturbing N number of neighbours' macrocell the strongest, by corresponding to each strong jamming cell in reported result
PMI under every kind of RI reports quantity to be ranked up, select to report most that PMI of quantity with corresponding
RI combination as spatial positional information in this strong jamming cell for this LPN.
It is preferred that described notification module passes through back haul link just this LPN at least one macrocell described
Spatial positional information notice at least one macrocell described in coverage.
The embodiment of the present invention five proposes a kind of macro cell base station promoting heterogeneous network interference coordination, such as Fig. 5 institute
Showing, described macro cell base station 500 includes:
Spatial positional information receiver module 501, for receiving this LPN described grand from low power nodes LPN
Spatial positional information in cell coverage area；
Channel condition information acquisition module 502, is used for the channel condition information CSI after obtaining adjustment, described tune
The spatial positional information of the CSI after whole and space bit confidence in described macrocell coverage area for the described LPN
Breath difference；
Scheduled transmission module 503, for the adjustment according to acquired in described channel condition information acquisition module 502
After CSI do scheduled transmission.
It is preferred that described channel condition information acquisition module 502 includes:
Receiving unit 504, for receiving the channel condition information of UE feedback；
Adjustment unit 505, adjusts as follows for the channel condition information being received described receiving unit:
If described channel condition information comprises the space bit confidence identical with the spatial positional information of the LPN being received
Breath, then again select another spatial positional information for UE, and recalculate the instruction of corresponding channel quality；
If described channel condition information does not comprise the locus identical with the spatial positional information of the LPN being received
Information, then do not process.
The embodiment of the present invention six proposes a kind of UE promoting heterogeneous network interference coordination, as shown in Figure 6, described
UE600 includes:
Broadcast reception module 601, for receiving the spatial positional information in macrocell broadcast；
Channel estimation module 602, for when carrying out channel status estimation, by described broadcast reception module
601 spatial positional informations receiving remove from alternative spatial positional information；
Channel condition information sending module 603, for by the channel status letter obtained by described channel estimation module
Breath feeds back to described macrocell.
The embodiment of the present invention seven proposes the another kind of LPN promoting heterogeneous network interference coordination, as it is shown in fig. 7,
Described LPN700 includes:
Spatial positional information receiver module 701, for receive that macrocell sent by back haul link this is grand
Cell spatial positional information scheduled within following a period of time；
Spatial positional information measurement module 702, for measuring described LPN in macrocell coverage area
Spatial positional information；
Dispatching user facility module 703, for record when described spatial positional information measurement module 702
Spatial positional information in macrocell coverage area for this LPN and described spatial positional information receiver module
When the 701 described spatial positional informations receiving are identical, then priority scheduling is positioned at described LPN coverage
The UE at center.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive this
Bright can add the mode of required common hardware by software and realize, naturally it is also possible to by hardware, but a lot
In the case of the former is more preferably embodiment.Based on such understanding, technical scheme substantially or
Person says that the part contributing prior art can embody with the form of software product, and this computer is soft
Part product is stored in the storage medium that can read, such as the floppy disk of computer, hard disk or CD etc., if including
Dry instruction is with so that a computer equipment (can be personal computer, server, or the network equipment
Deng) perform the method described in each embodiment of the present invention.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. done, should be included in
Within the scope of protection of the invention.
Claims (11)
1. one kind promotes heterogeneous network disturbance coordination method, it is characterised in that include:
Low power nodes LPN obtains space bit confidence at least one macrocell coverage area for this LPN
Breath；
This LPN, according to the mark of at least one macrocell described, is covered by LPN at least one macrocell described
Spatial positional information notice at least one macrocell described in the range of lid；
Macrocell receives spatial positional information in described macrocell coverage area for this LPN from LPN；
Described macrocell obtains the channel condition information CSI after adjusting, the locus of the CSI after described adjustment
Information is different from spatial positional information in described macrocell coverage area for the described LPN；
Described macrocell does scheduled transmission according to the CSI after described adjustment；
Wherein, the channel condition information CSI that described macrocell obtains after adjusting includes:
Macrocell obtains described CSI after adjusting at UE；Or,
Macrocell receives the channel condition information of UE feedback；
Described channel condition information is adjusted as follows: if described channel condition information comprising and being received
The identical spatial positional information of spatial positional information in described macrocell coverage area for the LPN, then be again
UE selects another spatial positional information, and recalculates the instruction of corresponding channel quality.
2. method according to claim 1, it is characterised in that described LPN obtains this LPN extremely
Before spatial positional information in a few macrocell coverage area, farther include:
LPN judges whether current time is in the spatial positional information measurement moment, if so, then performs described LPN
Obtain the step of spatial positional information at least one macrocell coverage area for this LPN.
3. method according to claim 1, it is characterised in that described spatial positional information is precoding
Matrix indicates PMI.
4. method according to claim 3, it is characterised in that described LPN obtains this LPN extremely
Spatial positional information in a few macrocell coverage area includes:
LPN selects that of Reference Signal Received Power RSRP maximum from the multiple UE self being serviced
UE, by the PMI of the N number of neighbours' macrocell of high-level signaling configuration selected UE measurement, N is natural number；
LPN receives N number of PMI and the corresponding macrocell mark thereof that described selected UE reports；
N number of PMI that described selected UE is reported by LPN and corresponding neighbours' macrocell mark thereof are as described
Spatial positional information in this N number of macrocell for the LPN；
Or
LPN is configured the PMI of the N number of neighbours' macrocell of multiple UE measurement of its service by high-level signaling；
LPN receives PMI and the corresponding macrocell mark thereof that the plurality of UE reports；
LPN finds the most N number of macrocell mark of occurrence number in the result reporting, by described N
The corresponding macrocell of individual macrocell mark is as N number of strong jamming neighbours' macrocell；
PMI corresponding to each strong jamming neighbours' macrocell in reported result is reported quantity to carry out by LPN
Sequence, selects to report most that PMI of quantity as space in this strong jamming cell for this LPN
Positional information.
5. method according to claim 1, it is characterised in that described spatial positional information be PMI and
Order indicates RI.
6. method according to claim 5, it is characterised in that described LPN obtains this LPN extremely
Spatial positional information in a few macrocell coverage area includes:
LPN selects that maximum UE of RSRP from the multiple UE self being serviced, and is believed by high level
Optimal PMI, N under each possible RI value for the N number of neighbours' macrocell of order configuration selected UE measurement
For natural number；
LPN receives each group RI and PMI of N number of interference macrocell that described selected UE reports and right
The macrocell mark answered；
Each group RI and PMI and corresponding macrocell thereof that these are reported by LPN identify as it at this N
Spatial positional information in individual macrocell；
Or
LPN configures its N number of neighbours' macrocell of multiple UE servicing measurement by high-level signaling can at each
Optimal PMI under the RI value of energy；
LPN receives each group RI and PMI of the interference macrocell that the plurality of UE reports and corresponding
Macrocell identifies；
LPN finds the most N number of macrocell mark of occurrence number in the result reporting, by described N
The corresponding macrocell of individual macrocell mark is as described N number of neighbours' macrocell；
PMI under every kind of RI corresponding to each strong jamming cell in reported result is reported quantity to enter by LPN
Row sequence, selects that PMI and the corresponding RI combination reporting quantity most strong at this as this LPN
Spatial positional information in interfered cell.
7. the method according to any one of claim 1 to 6, it is characterised in that described by this LPN
Spatial positional information notice at least one macrocell described at least one macrocell coverage area described
For: by back haul link by space bit confidence at least one macrocell coverage area described for this LPN
Breath notice at least one macrocell described.
8. one kind promotes heterogeneous network disturbance coordination method, it is characterised in that include:
Low power nodes LPN in macrocell coverage area receives this macrocell that described macrocell sends
Spatial positional information scheduled within following a period of time；
Spatial positional information in macrocell coverage area for this LPN recording as described LPN and reception
When the described spatial positional information that arrives is identical, then priority scheduling is positioned at described LPN coverage center
UE。
9. method according to claim 8, it is characterised in that described LPN receives described grand little
This macrocell that district sends scheduled spatial positional information within following a period of time includes: described LPN
Receive this macrocell that described macrocell sends sky scheduled within following a period of time by back haul link
Between positional information.
10. a macro cell base station, it is characterised in that described macro cell base station includes:
Spatial positional information receiver module, for receiving this LPN at described macrocell from low power nodes LPN
Spatial positional information in coverage；
Channel condition information acquisition module, for obtaining the channel condition information CSI after adjusting, institute at UE
State spatial positional information and the space bit in described macrocell coverage area for the described LPN of the CSI after adjustment
Confidence breath difference；
Scheduled transmission module, for the CSI after the adjustment according to acquired in described channel condition information acquisition module
Do scheduled transmission；
Or, described channel condition information acquisition module includes:
Receiving unit, for receiving the channel condition information of UE feedback；
Adjustment unit, adjusts as follows for the channel condition information being received described receiving unit: if institute
State space bit confidence in described macrocell coverage area for the LPN comprising in channel condition information and being received
The same spatial positional information of manner of breathing, then again select another spatial positional information for UE, and recalculate phase
The channel quality instruction answered.
11. 1 kinds of low power nodes LPN, it is characterised in that described LPN includes:
Spatial positional information receiver module, is used for receiving this macrocell of macrocell transmission when following one section
Interior scheduled spatial positional information；
Spatial positional information measurement module, for measuring space in macrocell coverage area for the described LPN
Positional information；
Dispatching user facility module, exists for this LPN recording when described spatial positional information measurement module
The institute that spatial positional information in macrocell coverage area receives with described spatial positional information receiver module
State spatial positional information identical when, then priority scheduling is positioned at the UE at described LPN coverage center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110037007.7A CN102638805B (en) | 2011-02-12 | 2011-02-12 | A kind of promotion heterogeneous network disturbance coordination method and equipment |
| PCT/CN2012/070868 WO2012106987A1 (en) | 2011-02-12 | 2012-02-03 | Method and device for enhancing interference coordination in heterogeneous network |
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| CN201110037007.7A CN102638805B (en) | 2011-02-12 | 2011-02-12 | A kind of promotion heterogeneous network disturbance coordination method and equipment |
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| CN103974238B (en) | 2013-01-25 | 2018-09-28 | 中兴通讯股份有限公司 | A kind of methods, devices and systems for realizing safety detection in heterogeneous network |
| CN104053158B (en) | 2013-03-11 | 2018-04-06 | 株式会社日立制作所 | Isomery cellular network and the resource selection method of micro-base station therein and micro-base station |
| CN104349486B (en) * | 2013-08-08 | 2019-05-03 | 华为技术有限公司 | Coordinated dispatching method, device and system based on interference elimination |
| CN105391511B (en) * | 2015-11-26 | 2017-11-28 | 北京邮电大学 | Eliminate the method and device of heterogeneous network interlayer interference |
| CN108024377B (en) * | 2016-11-04 | 2022-10-18 | 中兴通讯股份有限公司 | Spatial information processing method and device |
| CN112020092B (en) * | 2019-05-31 | 2022-05-24 | 华为技术有限公司 | Channel information acquisition method and device |
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| CN101527936A (en) * | 2008-03-04 | 2009-09-09 | 中兴通讯股份有限公司 | Layering isomeric wireless access network system and realization method for layering isomeric wireless access network |
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| CN101925069B (en) * | 2009-06-15 | 2016-01-06 | 株式会社Ntt都科摩 | Disturbance restraining method in wireless cellular network and device |
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