CN102137499A - Method, system and equipment for performing interruption coordination - Google Patents
Method, system and equipment for performing interruption coordination Download PDFInfo
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- CN102137499A CN102137499A CN2011100936978A CN201110093697A CN102137499A CN 102137499 A CN102137499 A CN 102137499A CN 2011100936978 A CN2011100936978 A CN 2011100936978A CN 201110093697 A CN201110093697 A CN 201110093697A CN 102137499 A CN102137499 A CN 102137499A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, a system and equipment for performing interruption coordination, which are used for reducing interruption of time slot in the scene of dynamically changing request for proportion of an uplink service and a downlink service. The method for performing interruption coordination comprises the following steps that: first network side equipment determines a maximum emission power threshold value capable of controlling the interruption to second network side equipment in a permitted range of the second network side equipment; and the first network side equipment configures a downlink sub-frame n needed to be configured according to the determined maximum emission power threshold value to reduce interruption of the configured sub-frame n to a neighbor cell, where n is a non-negative integer. By the embodiment, in the scene of dynamically changing request for proportion of an uplink service and a downlink service, the interruption of time slot caused by different uplink and downlink configuration can be reduced and the stability and performance of the system can be enhanced.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment that carries out interference coordination.
Background technology
Basic duplex mode for the cellular system employing, TDD (Time division duplex, time division duplex) pattern is meant that uplink downlink uses same working band, on the different time intervals, carry out the transmission of uplink and downlink signals, have between the up-downgoing protection at interval (Guard Period, GP); FDD (Frequency division duplex; Frequency Division Duplexing (FDD)) pattern refers to that then uplink downlink uses different working bands; can when same, be engraved in the transmission of carrying out uplink and downlink signals on the different frequency carriers, have between the up-downgoing protection bandwidth (Guard Band, GB).
The frame structure of LTE (Long Term Evolution, Long Term Evolution) TDD system is complicated slightly, and shown in Figure 1A, a radio frames length is 10ms, comprises special subframe and conventional subframe two classes totally 10 subframes, and each subframe is 1ms.Special subframe is divided into 3 subframe: DwPTS (Downlink Pilot Time Slot, the descending pilot frequency subframe) is used to transmit PSS (Primary Synchronization Signal, master sync signal), PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), PHICH (Physical HARQ Indication Channel, the automatic request retransmission indicating channel of physical mixed), PCFICH (Physical Control Format Indication Channel, Physical Control Format Indicator Channel), PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) etc.; GP be used between descending and up protection at interval); UpPTS (Uplink Pilot Time Slot, ascending pilot frequency subframe) is used for transmitting SRS (Sounding Reference Signal surveys and uses reference signal), PRACH (Physical Random Access Channel, Physical Random Access Channel) etc.Conventional subframe comprises sub-frame of uplink and descending sub frame, is used to transmit up/down control channel and business datum etc.Wherein in a radio frames, can dispose two special subframes (being positioned at subframe 1 and 6), also can dispose a special subframe (being positioned at subframe 1).Always as downlink transfer, the UpPTS subframe in subframe 2 and the special subframe always is used for uplink to DwPTS subframe in subframe 0 and subframe 5 and the special subframe, and other subframes can be configured to as uplink or downlink transfer according to needs.
Identical frequency resource is used in the uplink and downlink transmission in the TDD system, transmits uplink/downlink signals on different subframes.In common TDD system, comprise TD-SCDMA (TD SDMA) system of 3G and the TD-LTE system of 4G, the division of uplink and downlink subframe is static or semi-static, and common way is to determine the division of ascending-descending subframes ratio according to cell type and business proportion roughly and remain unchanged in network planning process.This is comparatively simple way under the background of the big covering of macrocell, and also comparatively effective.And along with technical development, increasing Microcell (Pico cell), Home eNodeB low power base station such as (Home NodeB) is used to provide the little covering of part by deployment, in this class sub-district, number of users is less, and the customer service changes in demand is bigger, so there is situation about dynamically changing in the up-downgoing business proportion demand of sub-district.
In real system,, then can cause the cross time-slot of neighbor cell to disturb if different sub-districts is provided with different ascending-descending subframes configurations.Macrocell is on the time slot that sends downstream signal, femto cell (Femto cell) is used for upward signal and receives, then occur between two sub-districts: base-station, base-station disturbs, the femto base station directly receives the downstream signal of Macro base station, to have a strong impact on the quality that the femto base station receives L-UE (Local UE, local UE) upward signal.The neighbor cell here can be geographical sub-district (shown in Figure 1B) of the adjacent same TDD carrier wave of use, or geography is gone up sub-district (shown in Fig. 1 C) overlapping or that use adjacent TDD carrier wave.But at present under the scene that dynamically changes for up-downgoing business proportion demand, also do not solve the scheme that cross time-slot disturbs.
In sum, at present under the scene that dynamically changes for up-downgoing business proportion demand, also do not solve the scheme of time slot interference.
Summary of the invention
The embodiment of the invention provides a kind of method, system and equipment that carries out interference coordination, under the scene that dynamically changes for up-downgoing business proportion demand, reduces time slot interference.
A kind of method of carrying out interference coordination that the embodiment of the invention provides comprises:
First network equipment is determined can be to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment;
Described first network equipment is configured to descending subframe n according to the maximum transmission power threshold value of determining to needs and is configured, to reduce the interference of configuration back subframe n to adjacent sub-district;
Wherein, n is a nonnegative integer.
A kind of first network equipment that carries out interference coordination that the embodiment of the invention provides comprises:
The threshold value determination module, being used for determining can be to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment;
Configuration module is used for according to the maximum transmission power threshold value of determining needs being configured to descending subframe n and is configured, to reduce the interference of configuration back subframe n to adjacent sub-district;
Wherein, n is a nonnegative integer.
Because first network equipment is configured according to being configured to descending subframe n to needs to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment, thereby under the scene that up-downgoing business proportion demand dynamically changes, reduce the time slot interference that the uplink-downlink configuration difference causes; The stability of a system and performance have further been improved.
Description of drawings
Figure 1A is a TD-LTE system frame structure schematic diagram;
Figure 1B cross time-slot when using identical TDD carrier wave disturbs schematic diagram;
Fig. 1 C cross time-slot when using adjacent TDD carrier wave disturbs schematic diagram;
Fig. 2 carries out the method flow schematic diagram of interference coordination for the embodiment of the invention;
Fig. 3 carries out the device structure schematic diagram of interference coordination for the embodiment of the invention.
Embodiment
The embodiment of the invention first network equipment is configured according to being configured to descending subframe n to needs to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment, to reduce the interference of configuration back subframe n to adjacent sub-district, thereby under the scene that up-downgoing business proportion demand dynamically changes, reduce the time slot interference that the uplink-downlink configuration difference causes.
Wherein, the embodiment of the invention can be applied to (such as the TD-LTE system) in the TDD system, also can be applied to other needs dynamically to adjust in the system of subframe uplink-downlink configuration, for example TD-SCDMA system and follow-up evolution system thereof, WiMAX (Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) system and follow-up evolution system thereof etc.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
As shown in Figure 2, the embodiment of the invention method of carrying out interference coordination comprises the following steps:
Can in carrying out the sub-district uplink-downlink configuration, determine the maximum transmission power threshold value such as first network equipment; Can also after receiving high-rise notice, determine the maximum transmission power threshold value.
Preferable, before the step 201, first network equipment can be measured the peripheral base station deployment scenario earlier, such as determining effective interference base station number and RSRP (Reference Signal Receiving Power separately, Reference Signal Received Power) value, and/or with the mutual base station configuration information of peripheral base station, wherein configuration information comprises but is not limited at least a in the following message: transmitting power, resource allocation information.
Wherein, when first network equipment carries out the uplink-downlink configuration of local area again according to the interference effect of business demand or other sub-district or other reason needs, this configuration may bring the inter base station interference problem, as adjacent area subframe n is descending sub frame, when first network equipment configuration subframe n is descending sub frame, can disturb the adjacent area to receive data.First network equipment need consider that interference effect limits the configuration of this subframe.
Preferable, in the step 201, first network equipment is determined the maximum transmission power threshold value according to the facility information of first network equipment and/or the facility information of second network equipment.
In the enforcement, the facility information of first network equipment includes but not limited at least a in the following message:
Spectrum allocation may information and resource scheduling information.
The facility information of second network equipment includes but not limited at least a in the following message:
Path loss values between first network equipment and second network equipment, the Reference Signal Received Power value of second network equipment, spectrum allocation may information, resource scheduling information, system bandwidth and interference ability to bear value.
In the step 201, first network equipment determines that the mode of maximum transmission power threshold value has a lot, enumerates several below:
Mode one, first network equipment be according to the facility information of the facility information of first network equipment and/or each second network equipment on every side, selects one second network equipment as reference equipment second network equipment around be in first network equipment;
First network equipment is determined the maximum transmission power threshold value according to the facility information of first network equipment and/or the facility information of reference device.
Concrete, in a plurality of second network equipments, first network equipment can select one second network equipment as reference equipment.
Preferable, first network equipment determines that the second nearest network equipment is as reference equipment; Or first network equipment determine that second network equipment of path loss values minimum is as reference equipment.
When definite maximum transmission power threshold value, first network equipment can be determined the maximum transmission power threshold values according to formula one or formula two:
P
Max_tx=I
DL → UL+ ACIR
Bs-bs+ max (pathloss, MCL) ... ... formula one;
P
Max_tx=I
DL → UL+ max (pathloss, MCL) ... ... formula two;
Wherein, P
Max_txIt is the maximum transmission power threshold value; I
DL → ULIt is the interference threshold value that second network equipment, first network equipment that can bear disturbs;
ACLR wherein
ABe the Adjacent Channel Leakage Power Ratio value (adjacent channel leakage power radio) of first network equipment, ACS
BIt is the adjacentchannel selectivity value (adjacent channel selectivity) of second network equipment 10; Pathloss is a path loss values; MCL is the minimum coupling loss value.
Preferable, I
DL → ULCan be the agreement agreement, or the equipment Default Value, or according to actual conditions calculating acquisition (received power value such as useful signal is conciliate the pitch limit value, calculates the interference threshold value that can bear).
Further, I
DL → ULAlso can reference resources scheduling situation select, as for first network equipment and the second network equipment scheduling of resource when the identical Resource Block, I
DL → ULUsually less, as being a value of making an uproar the end of less than; As for first network equipment and the second network equipment scheduling of resource when the different Resource Block, I
DL → ULUsually bigger, making an uproar the end of as adds 20dB.
Preferable, when interference that first network equipment forms is in second network equipment receives bandwidth, ACIR
Bs-bsBe 0; When interference that first network equipment forms is outside second network equipment receives bandwidth,, and determine ACIR according to ACLR and ACS according at least a definite ACLR and the ACS in the following manner
Bs-bs
Wherein, the mode of determining ACLR and ACS comprises:
Rule of thumb value is determined ACLR and/or ACS;
Determine ACLR and/or ACS according to reference value;
Determine ACLR and/or ACS;
By determining ACS by the notice of signaling according to high level;
According to the definite ACLR of self configuration.
Such as adopting wherein a kind of mode to determine ACS, adopt another kind of mode to determine ACLR.
Preferable, when determining a plurality of ACLR,, from a plurality of ACLR, select an ACLR according to frequency allocation situation or scheduling of resource situation;
When determining a plurality of ACS,, from a plurality of ACS, select an ACS according to frequency allocation situation or scheduling of resource situation.
If determine ACLR and/or ACS according to reference value, can preestablish the corresponding relation of frequency allocation situation and reference value and/or the corresponding relation of scheduling of resource situation and reference value, just can determine frequency allocation situation or the scheduling of resource situation corresponding reference value of self then according to corresponding relation.The corresponding relation of the corresponding relation of wherein, frequency allocation situation and reference value and/or scheduling of resource situation and reference value can be referring to 3GPP TS 36.101 or 3GPP TS 36.104 agreements.
If rule of thumb value is determined ACLR and/or ACS, can also preestablish the corresponding relation of frequency allocation situation and empirical value and/or the corresponding relation of scheduling of resource situation and empirical value, just can determine frequency allocation situation or the scheduling of resource situation corresponding reference value of self then according to corresponding relation.
Preferable, pathloss measures, or Signalling exchange, or both are in conjunction with acquisition.This value has comprised penetration loss, factors such as antenna gain.
MCL can adopt empirical value (emulation acquisition), or the equipment configuration of dispatching from the factory, or the agreement agreement.
Mode two, first network equipment according to around the information of a plurality of interfered cells, determine the maximum transmit power value that each interfered cell is allowed respectively, and therefrom select one maximum transmit power value as the maximum transmission power threshold value.
Concrete, first network equipment is determined the maximum transmission power threshold value of each second network equipment correspondence on every side respectively according to the facility information of the facility information of first network equipment and/or each second network equipment on every side;
First network equipment is selected a maximum transmission power threshold value from a plurality of maximum transmission power threshold values of determining.
When selecting, first network equipment can be selected one at random.Preferable, first network equipment is selected a minimum maximum transmission power threshold value.
In the mode two, first network equipment also can be determined the maximum transmission power threshold value according to formula one or formula two, and particular content can not repeat them here referring to mode one appropriate section.
Need to prove that the embodiment of the invention is not limited to the above-mentioned dual mode of tool, other can determine that the mode that is in first network equipment maximum transmission power threshold value on every side is suitable for the embodiment of the invention equally.
Wherein, being in first network equipment, second network equipment on every side can be to be in first network equipment all-network side apparatus on every side; It also can be the network equipment that is in around first network equipment and is disturbed by first network equipment.
First network equipment can be joined with the definite network equipment that is disturbed by first network equipment of following manner:
First network equipment is measured the uplink-downlink configuration information that obtains the ambient network side apparatus, and then judgement can cause the network equipment of cross time-slot interference; Or
The ambient network equipment signaling is notified the uplink-downlink configuration information of the first network equipment ambient network equipment, and then judgement can cause the network equipment of cross time-slot interference; Or
First network equipment is with oneself uplink-downlink configuration or pre-configured signaling ambient network side apparatus, and the ambient network side apparatus judges that according to this information whether can form cross time-slot disturbs, and whether feedback is subjected to the information of loud, high-pitched sound interference.
Need to prove that the embodiment of the invention is not limited to aforesaid way, other can determine all to be suitable for the embodiment of the invention by the mode of the network equipment of first network equipment interference.
Preferable, in the step 202, first network equipment compares the minimum transmit power threshold value that maximum transmission power threshold value and first network equipment can bear;
During less than the minimum transmit power threshold value, n is configured to sub-frame of uplink to first network equipment with subframe in the maximum transmit power threshold value;
When first network equipment was not less than the minimum transmit power threshold value in the maximum transmit power threshold value, n was configured to descending sub frame with subframe, and with the maximum downstream transmission power value of maximum transmission power threshold value as subframe n.
In the enforcement, the minimum transmit power threshold value that first network equipment can bear can be a directly or indirectly agreement of agreement, or the equipment configuration of dispatching from the factory, or disposes according to actual conditions (device fulfillment capability and/or cost, the sub-district covers, throughput of system etc.).
Wherein, the network equipment of the embodiment of the invention can be base station (such as macro base station, a Home eNodeB etc.), also can be RN (relaying) equipment, can also be other network equipment.
Based on same inventive concept, a kind of network equipment that carries out interference coordination also is provided in the embodiment of the invention, because the principle that this equipment is dealt with problems is similar to the method for carrying out interference coordination, so the enforcement of this equipment can repeat part and repeat no more referring to the enforcement of method.
As shown in Figure 3, the embodiment of the invention equipment that carries out interference coordination comprises: threshold value determination module 10 and configuration module 20.
Threshold value determination module 10, being used for determining can be to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment.
Preferable, threshold value determination module 10 is determined to be in before first network equipment maximum transmission power threshold value on every side, can measure the peripheral base station deployment scenario earlier, such as determining effective interference base station number and RSRP value separately, and/or with the mutual base station configuration information of peripheral base station, wherein configuration information comprises but is not limited at least a in the following message: transmitting power, resource allocation information.
Preferable, threshold value determination module 10 is determined the maximum transmission power threshold value according to the facility information of first network equipment and/or the facility information of second network equipment.
In the enforcement, the facility information of first network equipment includes but not limited at least a in the following message:
Spectrum allocation may information and resource scheduling information.
The facility information of second network equipment includes but not limited at least a in the following message:
Path loss values between first network equipment and second network equipment, the Reference Signal Received Power value of second network equipment, spectrum allocation may information, resource scheduling information and interference ability to bear value.
Wherein, threshold value determination module 10 determines that the mode of maximum transmission power threshold value has a lot, enumerates several below:
Mode one, threshold value determination module 10 be according to the facility information of the facility information of first network equipment and/or each second network equipment on every side, selects one second network equipment as reference equipment second network equipment around be in first network equipment; According to the facility information of first network equipment and/or the facility information of reference device, determine the maximum transmission power threshold value.
Preferable, threshold value determination module 10 determines that the second nearest network equipment is as reference equipment; Or first network equipment determine that second network equipment of path loss values minimum is as reference equipment.
When definite maximum transmission power threshold value, threshold value determination module 10 can be determined the maximum transmission power threshold values according to formula one or formula two:
Mode two, threshold value determination module 10 be according to the facility information of the facility information of first network equipment and/or each second network equipment on every side, the maximum transmission power threshold value of each the second network equipment correspondence around determining respectively; From a plurality of maximum transmission power threshold values of determining, select a maximum transmission power threshold value.
When selecting, threshold value determination module 10 can be selected one at random.Preferable, first network equipment is selected a minimum maximum transmission power threshold value.
In the mode two, threshold value determination module 10 also can be determined the maximum transmission power threshold value according to formula one or formula two, and particular content can not repeat them here referring to mode one appropriate section.
Need to prove that the embodiment of the invention is not limited to the above-mentioned dual mode of tool, other can determine that the mode that is in first network equipment maximum transmission power threshold value on every side is suitable for the embodiment of the invention equally.
Wherein, being in first network equipment, second network equipment on every side can be to be in first network equipment all-network side apparatus on every side; It also can be the network equipment that is in around first network equipment and is disturbed by first network equipment.
Preferable, configuration module 20 compares the minimum transmit power threshold value that maximum transmission power threshold value and first network equipment can bear; During less than the minimum transmit power threshold value, n is configured to sub-frame of uplink with subframe in the maximum transmit power threshold value; When the maximum transmit power threshold value was not less than the minimum transmit power threshold value, n was configured to descending sub frame with subframe, and with the maximum downstream transmission power value of maximum transmission power threshold value as subframe n.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Because first network equipment is configured according to being configured to descending subframe n to needs to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment, thereby under the scene that up-downgoing business proportion demand dynamically changes, reduce the time slot interference that the uplink-downlink configuration difference causes; The stability of a system and performance have further been improved.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (23)
1. a method of carrying out interference coordination is characterized in that, this method comprises:
First network equipment is determined can be to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment;
Described first network equipment is configured to descending subframe n according to the maximum transmission power threshold value of determining to needs and is configured, to reduce the interference of configuration back subframe n to adjacent sub-district;
Wherein, n is a nonnegative integer.
2. the method for claim 1 is characterized in that, described first network equipment determines that the maximum transmission power threshold value comprises:
Described first network equipment is determined the maximum transmission power threshold value according to the facility information of first network equipment and/or the facility information of second network equipment.
3. method as claimed in claim 2 is characterized in that, described first network equipment determines that the maximum transmission power threshold value comprises:
Described first network equipment selects one second network equipment as reference equipment according to the facility information of the facility information of first network equipment and/or each second network equipment on every side from be in first network equipment, second network equipment on every side;
Described first network equipment is determined the maximum transmission power threshold value according to the facility information of first network equipment and/or the facility information of reference device.
4. method as claimed in claim 3 is characterized in that, described first network equipment selects one second network equipment to comprise as reference equipment:
Described first network equipment determines that the second nearest network equipment is as reference equipment; Or
First network equipment determines that second network equipment of path loss values minimum is as reference equipment.
5. method as claimed in claim 2 is characterized in that, described first network equipment determines that the maximum transmission power threshold value comprises:
Described first network equipment is determined the maximum transmission power threshold value of each second network equipment correspondence on every side respectively according to the facility information of the facility information of first network equipment and/or each second network equipment on every side;
Described first network equipment is selected a maximum transmission power threshold value from a plurality of maximum transmission power threshold values of determining.
6. method as claimed in claim 5 is characterized in that, described first network equipment is selected a minimum maximum transmission power threshold value.
7. as the arbitrary described method of claim 2～6, it is characterized in that the facility information of described first network equipment comprises at least a in the following message:
Spectrum allocation may information and resource scheduling information;
The facility information of described second network equipment comprises at least a in the following message:
Path loss values between first network equipment and second network equipment, the Reference Signal Received Power value of second network equipment, spectrum allocation may information, resource scheduling information, system bandwidth and interference ability to bear value.
8. as the arbitrary described method of claim 1～6, it is characterized in that described first network equipment is determined the maximum transmission power threshold value according to following formula:
P
max_tx＝I
DL→UL+ACIR
bs-bs+max(pathloss，MCL)；
Wherein, P
Max_txIt is the maximum transmission power threshold value; I
DL → ULIt is the interference threshold value that second network equipment, first network equipment that can bear disturbs;
ACLR wherein
ABe the Adjacent Channel Leakage Power Ratio value of first network equipment, ACS
BIt is the adjacentchannel selectivity value of second network equipment; Pathloss is a path loss values; MCL is the minimum coupling loss value.
9. method as claimed in claim 8 is characterized in that, when interference that described first network equipment forms is in described second network equipment receives bandwidth, and ACIR
Bs-bsBe 0;
When interference that described first network equipment forms is outside described second network equipment receives bandwidth,, and determine ACIR according to ACLR and ACS according at least a definite ACLR and the ACS in the following manner
Bs-bs
Wherein, the mode of determining ACLR and ACS comprises:
Rule of thumb value is determined ACLR and/or ACS;
Determine ACLR and/or ACS according to reference value;
Determine ACLR and/or ACS;
By determining ACS by the notice of signaling according to high level;
According to the definite ACLR of self configuration.
10. method as claimed in claim 9 is characterized in that, when determining a plurality of ACLR, according to frequency allocation situation or scheduling of resource situation, selects an ACLR from a plurality of ACLR;
When determining a plurality of ACS,, from a plurality of ACS, select an ACS according to frequency allocation situation or scheduling of resource situation.
11., it is characterized in that described first network equipment is determined the maximum transmission power threshold value according to following formula as the arbitrary described method of claim 1～6:
P
max_tx＝I
DL→UL+max(pathloss，MCL)；
Wherein, P
Max_txIt is the maximum transmission power threshold value; I
DL → ULIt is the interference threshold value that second network equipment, first network equipment that can bear disturbs; Pathloss is a path loss values; MCL is the minimum coupling loss value.
12., it is characterized in that described first network equipment is configured described subframe n and comprises as the arbitrary described method of claim 1～6:
Described first network equipment compares maximum transmission power threshold value and minimum transmit power requirements;
Described first network equipment is in described maximum transmit power threshold value during less than described minimum transmit power requirements, described subframe n is configured to sub-frame of uplink or does not dispatch on described subframe n;
When described first network equipment is not less than described minimum transmit power requirements in described maximum transmit power threshold value, described subframe n is configured to descending sub frame, and with the maximum downstream transmission power value of maximum transmission power threshold value as described subframe n.
13. method as claimed in claim 12 is characterized in that, described first network equipment is configured described subframe n and comprises:
The described first network equipment adjustment produces the descending sub frame that disturbs to second network equipment or adjusts the maximum downstream transmission power value of whole descending sub frames.
14. first network equipment that carries out interference coordination is characterized in that this equipment comprises:
The threshold value determination module, being used for determining can be to the maximum transmission power threshold value of Interference Control in the scope that second network equipment can bear of second network equipment;
Configuration module is used for according to the maximum transmission power threshold value of determining needs being configured to descending subframe n and is configured, to reduce the interference of configuration back subframe n to adjacent sub-district;
Wherein, n is a nonnegative integer.
15. equipment as claimed in claim 14 is characterized in that, described threshold value determination module specifically is used for:
According to the facility information of first network equipment and/or the facility information of second network equipment, determine the maximum transmission power threshold value.
16. equipment as claimed in claim 15 is characterized in that, described threshold value determination module specifically is used for:
According to the facility information of the facility information of first network equipment and/or each second network equipment on every side, from be in first network equipment, second network equipment on every side, select one second network equipment as reference equipment; According to the facility information of first network equipment and/or the facility information of reference device, determine the maximum transmission power threshold value.
17. equipment as claimed in claim 16 is characterized in that, described threshold value determination module specifically is used for:
Determine that the second nearest network equipment is as reference equipment; Or second network equipment of definite path loss values minimum is as reference equipment.
18. equipment as claimed in claim 15 is characterized in that, described threshold value determination module specifically is used for:
According to the facility information of the facility information of first network equipment and/or each second network equipment on every side, the maximum transmission power threshold value of each the second network equipment correspondence around determining respectively; From a plurality of maximum transmission power threshold values of determining, select a maximum transmission power threshold value.
19. equipment as claimed in claim 18 is characterized in that, described threshold value determination module specifically is used for: select a minimum maximum transmission power threshold value.
20., it is characterized in that described threshold value determination module is determined the maximum transmission power threshold value according to following formula as the arbitrary described equipment of claim 14～19:
P
max_tx＝I
DL→UL+ACIR
bs-bs+max(pathloss，MCL)；
Wherein, P
Max_txIt is the maximum transmission power threshold value; I
DL → ULIt is the interference threshold value that second network equipment, first network equipment that can bear disturbs;
ACLR wherein
ABe the Adjacent Channel Leakage Power Ratio value of first network equipment, ACS
BIt is the adjacentchannel selectivity value of second network equipment; Pathloss is a path loss values; MCL is the minimum coupling loss value.
21., it is characterized in that described threshold value determination module is determined the maximum transmission power threshold value according to following formula as the arbitrary described equipment of claim 14～19:
P
max_tx＝I
DL→UL+max(pathloss，MCL)；
Wherein, P
Max_txIt is the maximum transmission power threshold value; I
DL → ULIt is the interference threshold value that second network equipment, first network equipment that can bear disturbs; Pathloss is a path loss values; MCL is the minimum coupling loss value.
22., it is characterized in that described configuration module specifically is used for as the arbitrary described equipment of claim 14～19:
Maximum transmission power threshold value and minimum transmit power requirements are compared; In described maximum transmit power threshold value during, described subframe n is configured to sub-frame of uplink or on described subframe n, does not dispatch less than described minimum transmit power requirements; When described maximum transmit power threshold value is not less than described minimum transmit power requirements, described subframe n is configured to descending sub frame, and with the maximum downstream transmission power value of maximum transmission power threshold value as described subframe n.
23. equipment as claimed in claim 22 is characterized in that, described configuration module specifically is used for:
Adjustment produces the descending sub frame that disturbs to second network equipment or adjusts the maximum downstream transmission power value of whole descending sub frames.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110093697.8A CN102137499B (en) | 2011-04-14 | 2011-04-14 | Method, system and equipment for performing interruption coordination |
| PCT/CN2012/073480 WO2012139472A1 (en) | 2011-04-14 | 2012-04-01 | Method, system and equipment for coordinating interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110093697.8A CN102137499B (en) | 2011-04-14 | 2011-04-14 | Method, system and equipment for performing interruption coordination |
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| Publication Number | Publication Date |
|---|---|
| CN102137499A true CN102137499A (en) | 2011-07-27 |
| CN102137499B CN102137499B (en) | 2014-08-06 |
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| CN201110093697.8A Active CN102137499B (en) | 2011-04-14 | 2011-04-14 | Method, system and equipment for performing interruption coordination |
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| CN (1) | CN102137499B (en) |
| WO (1) | WO2012139472A1 (en) |
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| CN102137499B (en) | 2014-08-06 |
| WO2012139472A1 (en) | 2012-10-18 |
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