CN106535208B - A kind of open method and system of interference coordination function - Google Patents
A kind of open method and system of interference coordination function Download PDFInfo
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- CN106535208B CN106535208B CN201611004954.5A CN201611004954A CN106535208B CN 106535208 B CN106535208 B CN 106535208B CN 201611004954 A CN201611004954 A CN 201611004954A CN 106535208 B CN106535208 B CN 106535208B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000005259 measurement Methods 0.000 claims description 23
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- 235000007164 Oryza sativa Nutrition 0.000 claims description 18
- 235000021186 dishes Nutrition 0.000 claims description 18
- 235000009566 rice Nutrition 0.000 claims description 18
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 230000006855 networking Effects 0.000 abstract description 7
- 230000000116 mitigating effect Effects 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 89
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- 238000004590 computer program Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
Abstract
The invention discloses the open methods and system of a kind of interference coordination function, it is related to field of communication technology, to solve the problem of that the static eICIC that opens existing in the prior art can not reflect network condition in real time and then cause the interference mitigation gains of micro-base station unobvious and the wasting of resources of macro base station.The open method of interference coordination function provided by the invention includes: that micro-base station determines that the number of protected UE accounts for the ratio of the sum of the UE of access micro-base station；When the accounting is greater than preset ratio threshold value, micro-base station sends to macro base station and opens interference coordination SNability request message；After macro base station receives the unlatching interference coordination SNability request message, determine whether the load of macro base station is more than default load threshold；It when the load of macro base station is less than default load threshold, is sent to micro-base station and opens interference coordination function instruction message, to notify micro-base station to open interference coordination function.The present invention is suitable under the application scenarios of macro micro- collaboration networking.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of open methods and system of interference coordination function.
Background technique
With mobile data services rapid development, network capacity requirements are huge；And not due to the distribution of user and business
Uniformly, meet demand has been difficult to by the way of simple macro base station networking, macro micro- collaboration has become a kind of main networking mode.
Wherein, macro base station is for providing underlying basis covering；Supplement of the micro-base station as macro base station covering and capacity is general to launch in office
Portion's traffic hot spot or blind spot region.In the limited situation of operator's frequency spectrum resource, macro micro- identical networking can maximize frequency spectrum
Resource utilization, but serious interference is also brought along simultaneously, influence network performance.Particularly, due to macro base station transmission power compared with
Greatly, the micro-base station edge customer equipment in macro base station coverage area (User Equipment, UE) will receive from macro base
The strong jamming stood causes the coverage area of micro-base station to shrink, edge performance deteriorates.
In order to inhibit macro micro- co-channel interference, the Inter-Cell Interference Coordination (enhanced of enhancing is introduced
Interference coordination, eICIC) technology.EICIC is a kind of time domain interference coordination technology, using almost blank
Subframe (Almost Blank Subframe, ABS) scheme, by coordinate in the time domain macro small section data transmit to
Evade interference.Specifically, macro base station configures a certain proportion of ABS) subframe, which only carries public reference signal
(Common Reference Signal, CRS), primary synchronization signal (Primary Synchronization Signal, PSS)/
The common signals such as secondary synchronization signal (Secondary Synchronization Signal, SSS), not bearer service data；And
Micro-base station bearer service data in shielded ABS subframe can avoid being done by macro base station for dispatching its edge customer
It disturbs.
In the prior art, after the network condition generally by artificially judging macro micro- collaboration networking, when artificial identification needs to open
When eICIC function, pass through operation management maintainance system (the Operation Administration and in base station
Maintenance, OAM) in configured to open eICIC functional switch.But since this opening ways need user artificial
Judge whether to need to open；And by the way of static configuration, namely carrying out once with postponing, to carry out next configuration
When, it is still desirable to it is reconfigured after artificially being judged.Therefore, this mode for opening eICIC function can not be real in the prior art
When reflection network condition, be likely to result in micro-base station user interference is serious, opens in the good situation of service feature
On the one hand eICIC function makes the interference mitigation gains of micro-base station unobvious, on the other hand since macro base station is in ABS subframe
Any user data cannot be dispatched, therefore also results in the macro base station wasting of resources.
Summary of the invention
The embodiment of the present invention provides the open method and system of a kind of interference coordination function, to solve to exist in the prior art
The static eICIC that opens can not reflect network condition in real time, and then cause the interference mitigation gains of micro-base station unobvious and
The problem of wasting of resources of macro base station.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the present invention provides a kind of open method of interference coordination function, this method comprises:
Micro-base station determines that the number of protected user equipment (UE) accounts for the ratio of the sum for the UE for accessing the micro-base station, described
Protected UE is the user equipment for interfering index and pre-set business performance indicator that corresponding index request is not satisfied；
When the ratio is greater than preset ratio threshold value, the micro-base station sends unlatching interference coordination function to macro base station and asks
Seek message；
After the macro base station receives the unlatching interference coordination SNability request message, determine the macro base station load whether
More than default load threshold；
When the load of the macro base station is less than the default load threshold, the macro base station is sent to the micro-base station
Interference coordination function instruction message is opened, the unlatching interference coordination function instruction message is for notifying the micro-base station to open institute
State interference coordination function.
Second aspect, the embodiment of the present invention provide a kind of open system of interference coordination function, and the system comprises micro- bases
It stands and macro base station, in which:
The micro-base station, for determine the number of protected user equipment (UE) account for access the micro-base station UE sum
Ratio, the protected UE are that the user for interfering index and pre-set business performance indicator that corresponding index request is not satisfied sets
It is standby；
When the ratio is greater than preset ratio threshold value, the micro-base station sends to the macro base station and opens interference coordination function
It can request that message；
The macro base station determines the negative of the macro base station after receiving the unlatching interference coordination SNability request message
Whether carry is more than default load threshold；
When the load of the macro base station is less than the default load threshold, the macro base station is sent to the micro-base station
Interference coordination function instruction message is opened, the unlatching interference coordination function instruction message is for notifying the micro-base station to open institute
State interference coordination function.
The open method and system of interference coordination function provided by the invention are compared to existing static unlatching eICIC
The method of function, in the present invention, interference index and service feature index according to micro-base station user determine protected UE, and are based on
The load of protected UE accounting and macro base station determines whether to open interference coordination function.It therefore, can be according to network in the present invention
Whether situation, real-time judge open interference coordination function, on the one hand realize in micro-base station user serious interference and service feature not
Interference coordination request is just initiated in the case where meeting the requirements, it is ensured that biggish interference mitigation gains, while avoiding unnecessary
In the case where open interference coordination function caused by the macro base station wasting of resources；On the other hand, based on the load state of macro base station
It is determined whether to enable interference coordination functions, are not turned on interference coordination function when macro base station load is higher, guarantee that macro base station is preferential
Meet the resource requirement of this community user, to guarantee that the service feature of macro base station itself is unaffected.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the network architecture schematic diagram of the macro micro- collaboration networking of one kind provided in an embodiment of the present invention；
Fig. 2 is a kind of open method flow chart of interference coordination function provided in an embodiment of the present invention；
Fig. 3 is the open method flow chart of another interference coordination function provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the open system of interference coordination function provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the open system of another interference coordination function provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention can be used for a kind of network architecture of macro micro- collaboration networking, as shown in Figure 1, the network architecture packet
Include macro base station 11 and micro-base station 12, and the UE13 positioned at micro-base station edge.Wherein, the coverage area of macro base station 11 is larger, leads to
It is often more than ten kilometers；12 coverage area of micro-base station is smaller, and micro-base station 12 may be typically located at the user in macro base station coverage area
In compact district, such as building, quantity can be one or more.As it can be seen that since micro-base station 12 is located at the covering of macro base station 11
In range, the edge UE13 of micro-base station 12 will receive the interference from macro base station 11, in order to improve the letter of micro-base station edge UE13
Number quality, micro-base station 12 and macro base station 11 can be negotiated to open eICIC function.
The embodiment of the present invention provides a kind of open method of interference coordination function, and this method can be applied to as shown in Figure 1
Under the network architecture, as shown in Fig. 2, this method comprises:
101, micro-base station determines that the number of protected user equipment (UE) accounts for the ratio of the sum of the UE of access micro-base station.
Wherein, the protected UE is that corresponding index request is not satisfied in interference index and pre-set business performance indicator
User equipment.
Wherein, interfering index and service feature index, specifically why index can be system default setting；It can also be with
Specified specific indexes when to be indicated from micro-base station to UE sending measuring.
Optionally, interference index can be SINR (Signal to Interference plus Noise Ratio, Signal to Interference
Plus Noise Ratio) or adjacent macro cell RSRP (Reference Signal Receiving Power, reference signal
Receive power).
It should be noted that the interference index can also be other energy in other implementations of the embodiment of the present invention
Enough indicate the index for the annoyance level that UE is subject to.
The type of service carried according to UE is different, when for judging whether UE is protected UE, involved business
Performance indicator is also different.Service feature index includes voice service performance indicator and data service feature index.Specifically, voice
Service feature index includes the indexs such as time delay, speech service quality, percent of call completed.Data service performance indicator includes throughput and mistake
The indexs such as block rate.
It should be noted that the service feature index can also be it in other implementations of the embodiment of the present invention
He can indicate the index of the service feature for the business that UE is carried.
In a kind of implementation of this step, micro-base station can all send interference coordination to all UE of access micro-base station
Instruction message is measured, to indicate that UE judges whether its own is protected UE, if it is, the UE sends interference association to micro-base station
Request message is adjusted to count protected UE accounting in order to micro-base station.The specific implementation process of the implementation sees below literary detailed description.
In another implementation of this step, micro-base station can periodically collect the dry of all UE for accessing the micro-base station
Performance indicator and service feature index are disturbed, and judge whether each UE is protected UE respectively by micro-base station.
102, when the ratio is greater than preset ratio threshold value, micro-base station sends unlatching interference coordination function to macro base station and asks
Seek message.
Wherein, preset ratio threshold value is preset proportion threshold value, and the value of the preset ratio threshold value should be moderate.
In a kind of specific implementation of this step, which can be multiplexed existing
X2 interface message, as resource status updates (RESOURCE STATUS UPDATE) message.Specifically, micro-base station is sent out to macro base station
X2 interface message is sent, which includes micro-base station mark, macro base station mark and open interference coordination function request field.
Wherein, which micro-base station of the micro-base station mark for indicating that interference coordination function is opened in request be specifically；Macro base station
Mark is for indicating that opening the macro base station of interference coordination function is specifically which.Interference coordination function request field is opened for referring to
Show and whether request to open interference coordination function, and only when the value of the unlatching interference coordination function request field is for indicating
When the preset value of interference coordination function is opened in request, macro base station could know that micro-base station needs are opened according to the worth of the request field
Open interference coordination function.Therefore, in embodiments of the present invention, if the UE is protected UE, the corresponding unlatching interference
The value of coordination function request field is preset value, and the preset value is for indicating that interference coordination function is opened in request.
It should be noted that in order to by the X2 interface message and X2 interface message that hereinafter macro base station is sent to micro-base station
It distinguishes, the X2 interface message is known as the first X2 interface message in the present invention.
It is understood that the unlatching interference coordination SNability request message may be used also in other implementations of this step
To be multiplexed other message or for a customized new information, identified in the customized new information including at least micro-base station,
Macro base station mark.
103, after macro base station receives the unlatching interference coordination SNability request message, determine macro base station load whether be more than
Default load threshold.
Wherein, the load of macro base station can by the UE number of access macro base station or the wireless resource utility efficiency of macro base station, than
As Physical Resource Block (PRB, Physical Resource Block) utilization rate indicates.When access macro base station UE number it is more or
When the wireless resource utility efficiency of person's macro base station is higher, show that the load of macro base station is bigger；When access macro base station UE number less or
When the wireless resource utility efficiency of person's macro base station is lower, show that the load of macro base station is smaller.The value of default load threshold can basis
The actual loading situation of macro base station determines.
During the specific implementation of this step, macro base station is by the current load situation of its own and default load threshold ratio
Compared with, when the load of macro base station is not above default load threshold, show that the load of macro base station is smaller, schedulable resource compared with
Abundance, macro base station notice micro-base station opens interference coordination function at this time, and the specific implementation of the process can refer to following step 104.
When the load of macro base station is more than default load threshold, show that the load of macro base station is larger, schedulable resource is less, at this time
Macro base station can send the response message that refusal opens interference coordination function to micro-base station.
As it can be seen that compared with prior art, invention increases this to judge whether the load of macro base station is more than default load threshold
The deterministic process of value determines whether to open interference coordination function further according to judging result.
104, when the load of macro base station is less than the default load threshold, macro base station sends to micro-base station and opens interference
Coordination function instruction message.
Wherein, the unlatching interference coordination function instruction message is for notifying the micro-base station to open the interference coordination function
Energy.
In a kind of specific implementation of this step, which can be multiplexed existing
X2 interface message, such as information on load (LOAD INFORMATION) message.Disappear specifically, macro base station sends X2 interface to micro-base station
Breath, which includes micro-base station mark, macro base station mark and opens interference coordination function indication field, and institute therein
Stating and opening the value of interference coordination function indication field is preset value, and the preset value is used to indicate micro-base station and opens interference coordination
Function.
Wherein, which micro-base station of the micro-base station mark for indicating that interference coordination function is opened in request be specifically；Macro base station
Mark is for indicating that opening the macro base station of interference coordination function is specifically which.Interference coordination function indication field is opened for referring to
Whether show allows to open interference coordination function.It is only micro- to be used to indicate when the value of the unlatching interference coordination function indication field
When the preset value of interference coordination function is opened in base station, micro-base station could know that the macro base station allows out according to the worth of the indication field
Open interference coordination function.
It should be noted that in order to by the X2 interface message and X2 interface message that above micro-base station is sent to macro base station
It distinguishes, the X2 interface message is known as the second X2 interface message in the present invention.
It is understood that the unlatching interference coordination function instruction message may be used also in other implementations of this step
To be multiplexed other message or for a customized new information, include at least in the customized new information for opening interference
The micro-base station mark and macro base station mark of coordination function.
The open method of interference coordination function provided by the invention is compared to existing static unlatching eICIC function
Method, in the present invention, interference index and service feature index according to micro-base station user determine protected UE, and based on protected
The load of UE accounting and macro base station determines whether to open interference coordination function.It therefore, can be real according to network condition in the present invention
When it is determined whether to enable interference coordination function, on the one hand realize in micro-base station user serious interference and service feature be unsatisfactory for requiring
In the case where just initiate interference coordination request, it is ensured that biggish interference mitigation gains, while avoiding in unnecessary situation
The macro base station wasting of resources caused by unlatching interference coordination function；On the other hand, the load state based on macro base station judges whether
Interference coordination function is opened, is not turned on interference coordination function when macro base station load is higher, it is small to guarantee that macro base station preferentially meets this
The resource requirement of area user, to guarantee that the service feature of macro base station itself is unaffected.
It should be noted that after opening interference coordination function, micro-base station real-time detection is protected in the embodiment of the present invention
UE accounting, macro base station also its loading condition of real-time detection；When protected UE accounting is less than preset ratio threshold value or macro base station load
When greater than default load threshold, micro-base station and macro base station need to negotiate to close interference coordination function.Therefore, the embodiment of the present invention mentions
The open method of the interference coordination function of confession can open or close in real time interference coordination function according to the actual conditions of network.
As the supplement of method shown in Fig. 2, the embodiment of the present invention also provides a kind of open method of interference coordination function, should
The specific implementation process that micro-base station determines protected UE accounting is given in method, as shown in figure 3, this method comprises:
201, micro-base station sends interference coordination measurement instruction message to the UE of each access micro-base station respectively.
RRC (radio resource control layer, Radio Resource Control) layer is for handling user equipment and base station
(Node-B) the third layer information of plane is controlled between.Optionally, interference coordination signified in this step measurement instruction message can
Existing rrc layer message of eating dishes without rice or wine, such as RRC connection request (RRC ConnectionRequest) message are reused, and new wherein
Increase cell to carry the information such as UE mark, micro-base station mark, interference coordination measurement indication field.Wherein, interference coordination measurement refers to
Show that the value of field can be set, when the value of interference coordination measurement indication field is the first value, shows to be used to indicate UE
It is made whether that deterministic process namely UE for protected UE judge to interfere whether index and service feature index meet corresponding finger
Mark requires.Such as: the value that interference coordination measures indication field can be 0 or 1, then taking when interference coordination measurement indication field
When value is 1, show that being used to indicate UE is made whether as the deterministic process of protected UE.
It should be noted that in order to by eat dishes without rice or wine RRC information and the hereinafter UE sent to micro-base station eat dishes without rice or wine RRC information into
Row is distinguished, and the RRC information of eating dishes without rice or wine is known as first in the present invention and is eated dishes without rice or wine RRC information.
Optionally, the idle message that interference coordination signified in this step measurement instruction message can also be new for definition；It should
UE mark, micro-base station mark are included at least in new idle message.
Optionally, the interference pointer type that instruction UE is measured also is carried in the interference coordination measurement instruction message
With the type of service feature index.Such as: the interference index of instruction UE measurement is SINR, the service feature index of instruction UE measurement
For voice service performance indicator.Then UE only needs to judge whether indicated index meets corresponding index request, and then judges UE
It whether is protected UE.
202, each UE is after receiving interference coordination measurement instruction message, determines whether interference index meets pair respectively
Whether the interference index request and each pre-set business performance indicator answered meet corresponding service feature index request.
Optionally, the interference index is the RSRP of SINR or adjacent macro cell.
When the interference index is SINR, it can be determined that whether the corresponding SINR value of UE is greater than default SINR thresholding to sentence
Whether disconnected SINR meets corresponding index request, if the SINR that UE is subject to is greater than default SINR thresholding, it may be considered that UE
Index is interfered to meet interference index request, otherwise it is believed that the interference index of UE is unsatisfactory for interference index request.
When the interference index is the RSRP of adjacent macro cell, it can be determined that the RSRP value of the corresponding adjacent macro cell UE
Whether corresponding index request is met, it, can be with if the RSRP value of the corresponding adjacent macro cell UE is less than default RSRP thresholding
Think that the interference index of UE meets interference index request, otherwise it is believed that the corresponding interference index of UE is unsatisfactory for that index is interfered to want
It asks.
It should be noted that the interference index can also be other energy in other implementations of the embodiment of the present invention
Enough indicate the index for the annoyance level that UE is subject to.
The type of service carried according to UE is different, when for judging whether UE is protected UE, involved business
Performance indicator is also different.Optionally, the pre-set business performance indicator includes voice service performance indicator and data service feature
Index.Specifically, voice service performance indicator includes the indexs such as time delay, speech service quality, percent of call completed.Data service performance refers to
Mark includes the indexs such as throughput and Block Error Rate.
Wherein, judge whether UE voice service performance indicator meets corresponding voice service performance indicator requirement, it is specific to wrap
It includes: determining whether voice service time delay is less than default time delay thresholding, whether institute's Voice Quality is greater than preset quality thresholding, described
Whether percent of call completed is greater than default percent of call completed thresholding；When institute's voice traffic time delay is less than the default time delay thresholding, the voice
Quality determines institute's voice traffic greater than the preset quality thresholding and when the percent of call completed is greater than the default percent of call completed thresholding
Performance indicator meets the requirement of voice service performance indicator；Otherwise, it determines institute's voice traffic performance indicator is unsatisfactory for corresponding language
The requirement of sound business performance indicator；
Judge whether UE data service performance indicator meets corresponding data service performance indicator requirement, specifically includes: really
The throughput for determining data service whether is greater than default throughput thresholding and whether the bit error rate is less than default threshold bit error rate；Work as institute
Throughput is stated greater than the default throughput thresholding and when the bit error rate is less than the default threshold bit error rate, determines data industry
Business performance indicator meets corresponding data service performance requirement；Otherwise, it determines data service performance indicator is unsatisfactory for corresponding number
It is required according to service feature.
It should be noted that the service feature index can also be it in other implementations of the embodiment of the present invention
He can indicate the index of the service feature for the business that UE is carried.
203, when corresponding index request is not satisfied, UE sends interference coordination request message to micro-base station.
It is similar with the interference coordination measurement instruction message mentioned in step 201, signified interference coordination request in the step
Message also reusable existing rrc layer message of eating dishes without rice or wine, and increase cell newly wherein to carry UE mark, micro-base station mark, interference
Coordinate the information such as request indicating bit.Wherein, the value of interference coordination request indicating bit can be set, when interference coordination requests to indicate
When the value of position is the second value, show that the UE for sending the interference coordination request message is protected UE.Such as: interference coordination is asked
The value for seeking indicating bit can be 0 or 1, then when the value of interference coordination request indicating bit is 1, show to send the interference coordination
The UE of request message is protected UE.
It should be noted that in order to by eat dishes without rice or wine RRC information and the above micro-base station sent to UE eat dishes without rice or wine RRC information into
Row is distinguished, and the RRC information of eating dishes without rice or wine is known as second in the present invention and is eated dishes without rice or wine RRC information.
Equally, the idle message which can also be new for definition；In the new idle message at least
Including UE mark, micro-base station mark.
Corresponding step 101 can be refined as following step 204 to step 206.
204, micro-base station receives the interference coordination request message, by the UE carried in interference coordination request message mark pair
The UE answered is determined as protected UE.
Micro-base station is after the interference coordination request message for receiving UE transmission, it is believed that the UE is protected UE, then will
The UE carried in the interference coordination request message identifies corresponding UE and is determined as protected UE.
It should be noted that micro-base station may also need to sentence when the interference coordination request message is multiplexed existing message
Whether the value (interference coordination request indicating bit as previously mentioned) of respective field is preset value in the message of breaking, and is then remembered again
Record the UE mark carried in the message.
205, micro-base station counts the sum of the number of protected UE and the UE of the access micro-base station.
206, micro-base station determines that the number of protected UE accounts for the ratio of the sum of the UE of the accessed micro-base station.
Other realizations after micro-base station determines that the number of protected UE accounts for the ratio for accessing the sum of UE of micro-base station
Process can refer to step 102 described previously to step 104, and details are not described herein again.
The embodiment of the present invention also provides a kind of open system of interference coordination function, provides for executing the embodiment of the present invention
Interference coordination function open method, as shown in figure 4, the system comprises micro-base stations 21 and macro base station 22, in which:
The micro-base station 21, for determine the number of protected user equipment (UE) account for access the micro-base station 21 UE it is total
Several ratios, the protected UE are the user for interfering index and pre-set business performance indicator that corresponding index request is not satisfied
Equipment；When the ratio is greater than preset ratio threshold value, the micro-base station 21 sends to the macro base station 22 and opens interference coordination
SNability request message.
The macro base station 22, after receiving the unlatching interference coordination SNability request message that the micro-base station 21 is sent, really
Whether the load of the fixed macro base station 22 is more than default load threshold；When the load of the macro base station 22 is less than the preset negative
When carrying threshold value, the macro base station 22 is sent to the micro-base station 21 opens interference coordination function instruction message, the unlatching interference
Coordination function instruction message is for notifying the micro-base station 21 to open the interference coordination function.
On the basis of system shown in Fig. 4, the embodiment of the present invention also provides a kind of open system of interference coordination function, such as
Shown in Fig. 5, the system also includes user equipment (UE)s 31, in which:
The micro-base station 21, is also used to send interference coordination measurement respectively to the UE31 of each access micro-base station 21 and refers to
Show message.
Optionally, the interference coordination measures the existing rrc layer message of eating dishes without rice or wine of instruction message reusable, and increases newly wherein
Cell is to carry the information such as UE mark, micro-base station mark, interference coordination measurement indicating bit.Therefore, the micro-base station 21, is also used to
The first idle wireless resource control RRC information is sent respectively to the UE31 of each access micro-base station 21, and described first eats dishes without rice or wine
The UE mark, micro-base station mark and interference coordination measurement indication field are carried in RRC information, and the interference coordination is surveyed
The value for measuring indication field is preset value, and the preset value indicates that the UE determines whether interference index meets respectively for indicating
Whether corresponding interference index request and each pre-set business performance indicator meet corresponding service feature index request.
The UE31, for determining whether interference index is full respectively after receiving the interference coordination measurement instruction message
Whether the corresponding interference index request of foot and each pre-set business performance indicator meet corresponding service feature index request；When
When corresponding index request is not satisfied, Xiang Suoshu micro-base station 21 sends interference coordination request message, the interference coordination request
The mark of the UE, the mark of the micro-base station are carried in message.
Optionally, the interference coordination request message also existing rrc layer message of eating dishes without rice or wine of reusable, and newly-increased letter wherein
Member is to carry the information such as UE mark, micro-base station mark, interference coordination request indicating bit.Therefore, the UE31 is also used to described
Micro-base station 21 sends the second idle wireless resource control RRC information, and described second, which eats dishes without rice or wine, carries the UE mark in RRC information
Knowledge, micro-base station mark and interference coordination request indication field, and the value of interference coordination request indication field is pre-
If value, the preset value is for indicating that the UE is protected UE.
The micro-base station 21 is also used to receive the interference coordination request message that the UE31 is sent, by the interference coordination
The UE carried in request message identifies corresponding UE and is determined as protected UE；Count number and the access institute of the protected UE
State the sum of the UE of micro-base station 21；Determine that the number of the protected UE accounts for the ratio of the sum of the UE of the accessed micro-base station 21
Value.
In an implementation of the embodiment of the present invention, the UE31 is also used to the letter when the interference index for UE
When making an uproar than SINR, determine whether SINR is greater than default SINR thresholding；When the SINR is greater than the default SINR thresholding, determine
The interference index meets interference index request；Otherwise, it determines the interference index is unsatisfactory for the interference index request.
The UE31 is also used to when the interference index is the Reference Signal Received Power RSRP of adjacent macro cell, really
Whether the fixed RSRP is less than default RSRP thresholding；When the RSRP is less than the default RSRP thresholding, the interference is determined
Index meets interference index request；Otherwise, it determines the interference index is unsatisfactory for interference index request.
In an implementation of the embodiment of the present invention, the UE31 is also used to when the pre-set business performance indicator
Including voice service performance indicator, and when institute's voice traffic performance indicator includes time delay, speech service quality and percent of call completed, point
Que Ding whether voice service time delay be less than default time delay thresholding, whether institute's Voice Quality is greater than preset quality thresholding, described
Whether percent of call completed is greater than default percent of call completed thresholding；When institute's voice traffic time delay is less than the default time delay thresholding, the voice
Quality determines institute's voice traffic greater than the preset quality thresholding and when the percent of call completed is greater than the default percent of call completed thresholding
Performance indicator meets the requirement of voice service performance indicator；Otherwise, it determines institute's voice traffic performance indicator is unsatisfactory for corresponding language
The requirement of sound business performance indicator.
In another implementation of the embodiment of the present invention, the UE31 is also used to refer to when the pre-set business performance
Mark further includes data service performance indicator, and when the data service performance indicator includes throughput and Block Error Rate, is determined respectively
Whether the throughput of data service is greater than default throughput thresholding and whether the bit error rate is less than default threshold bit error rate；When described
Throughput determines the data greater than the default throughput thresholding and when the bit error rate is less than the default threshold bit error rate
Service feature index meets corresponding data service performance requirement；Otherwise, it determines the data service performance indicator is unsatisfactory for pair
The data service performance requirement answered.
Optionally, in an implementation of the embodiment of the present invention, the micro-base station 21 is sent to the macro base station 22
The reusable X2 interface message of interference coordination SNability request message is opened, therefore, the micro-base station 21 is also used to the macro base
Stand 22 send the first X2 interface message, the first X2 interface message include micro-base station mark, macro base station mark and open interference
Coordination function request field, and the value for opening interference coordination function request field is preset value, the preset value is used for
Indicate that interference coordination function is opened in request.
Optionally, in another implementation of the embodiment of the present invention, the macro base station 22 is sent out to the micro-base station 21
It send and opens interference coordination function instruction message reusable X2 interface message, therefore the macro base station 22, be also used to micro- base
Stand 21 send the second X2 interface message, the second X2 interface message include micro-base station mark, macro base station mark and open interference
Coordination function indication field, and the value for opening interference coordination function indication field is preset value, the preset value is used for
Indicate that the micro-base station 21 opens interference coordination function.
The open system of interference coordination function provided in an embodiment of the present invention, interference index and industry according to micro-base station user
Business performance indicator determines protected UE, and the load of the protected UE accounting based on access micro-base station and macro base station determines whether out
Open interference coordination function.Therefore, whether the present invention can open interference coordination function, a side according to network condition, real-time judge
Face is realized in micro-base station user serious interference and service feature is unsatisfactory for just initiating interference coordination request in the case where requirement, can be protected
Macro base station provides caused by demonstrate,proving biggish interference mitigation gains, while avoiding opening interference coordination function in unnecessary situation
Source waste；On the other hand, based on the load state of macro base station, it is determined whether to enable interference coordination functions, when macro base station load is higher
When be not turned on interference coordination function, guarantee that macro base station preferentially meets the resource requirement of this community user, thus guarantee macro base station from
The service feature of body is unaffected.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (16)
1. a kind of open method of interference coordination function, which is characterized in that the described method includes:
Micro-base station determines that the number of protected UE accounts for the ratio of the sum for the UE for accessing the micro-base station, and the protected UE is dry
It disturbs index and the user equipment of corresponding index request is not satisfied in pre-set business performance indicator；
When the ratio is greater than preset ratio threshold value, the micro-base station sends unlatching interference coordination function request to macro base station and disappears
Breath；
After the macro base station receives the unlatching interference coordination SNability request message, determine the macro base station load whether be more than
Default load threshold；
When the load of the macro base station is less than the default load threshold, the macro base station sends to the micro-base station and opens
Interference coordination function instruction message, the unlatching interference coordination function instruction message is for notifying that it is described dry that the micro-base station is opened
Disturb coordination function.
2. the method according to claim 1, wherein determining that the number of protected UE accounts for access in the micro-base station
Before the ratio of the sum of the UE of the micro-base station, the method also includes:
The micro-base station sends interference coordination measurement instruction message to the UE of each access micro-base station respectively；
The UE of the access micro-base station determines that interference index is after receiving the interference coordination measurement instruction message respectively
It is no to meet corresponding interference index request and whether each pre-set business performance indicator meets corresponding service feature index and want
It asks；
When corresponding index request is not satisfied, the UE of the access micro-base station sends interference coordination to the micro-base station
Request message carries the mark of the UE of the access micro-base station, the micro-base station in the interference coordination request message
Mark；
The micro-base station determines that the number of protected UE accounts for the ratio of the sum for the UE for accessing the micro-base station, specifically includes:
The micro-base station receives the interference coordination request message, the access that will be carried in the interference coordination request message
The UE of the micro-base station identifies corresponding UE and is determined as protected UE；
The micro-base station counts the sum of the number of the protected UE and the UE of the access micro-base station；
The micro-base station determines that the number of the protected UE accounts for the ratio of the sum of the UE of the accessed micro-base station.
3. according to the method described in claim 2, it is characterized in that, the signal-to-noise ratio SINR that the interference index is UE；
The UE of the access micro-base station determines whether interference index meets corresponding interference index request, specifically includes:
UE determines whether SINR is greater than default SINR thresholding；
When the SINR is greater than the default SINR thresholding, determine that the interference index meets interference index request；Otherwise, really
The fixed interference index is unsatisfactory for the interference index request；
Or
The interference index is the Reference Signal Received Power RSRP of adjacent macro cell；
The UE of the access micro-base station determines whether interference index meets corresponding interference index request, specifically includes:
UE determines whether the RSRP is less than default RSRP thresholding；
When the RSRP is less than the default RSRP thresholding, determine that the interference index meets interference index request；Otherwise, really
The fixed interference index is unsatisfactory for interference index request.
4. according to the method described in claim 2, it is characterized in that, the pre-set business performance indicator includes voice service performance
Index, institute's voice traffic performance indicator include time delay, speech service quality, percent of call completed；
The UE of the access micro-base station determines whether each pre-set business performance indicator meets corresponding service feature respectively
Index request specifically includes:
UE determines whether voice service time delay is less than default time delay thresholding, whether the speech service quality is greater than preset quality door
Whether limit, the percent of call completed are greater than default percent of call completed thresholding；
When institute's voice traffic time delay is less than the default time delay thresholding, the speech service quality is greater than the preset quality door
Limit and the percent of call completed be greater than the default percent of call completed thresholding when, determine that institute's voice traffic performance indicator meets voice service
It can index request；Otherwise, it determines institute's voice traffic performance indicator is unsatisfactory for corresponding voice service performance indicator requirement；
Alternatively, the pre-set business performance indicator further includes data service performance indicator, the data service performance indicator includes
Throughput and Block Error Rate；
The UE of the access micro-base station determines whether each pre-set business performance indicator meets corresponding service feature respectively
Index request specifically includes:
UE determines whether the throughput of data service is greater than default throughput thresholding and whether the bit error rate is less than the default bit error rate
Thresholding；
When the throughput is greater than the default throughput thresholding and the bit error rate is less than the default threshold bit error rate, really
The fixed data service performance indicator meets corresponding data service performance requirement；Otherwise, it determines the data service performance refers to
Mark is unsatisfactory for corresponding data service performance requirement.
5. according to the method described in claim 2, it is characterized in that, the micro-base station is divided to the UE of each access micro-base station
Not Fa Song interference coordination measure instruction message, specifically include:
The micro-base station sends the first idle wireless resource control RRC information, institute to the UE of each access micro-base station respectively
First is stated to eat dishes without rice or wine to carry the UE mark for accessing the micro-base station, micro-base station mark and interference coordination survey in RRC information
Indication field is measured, and the value of interference coordination measurement indication field is preset value, the preset value is for indicating instruction institute
It states and accesses the UE of the micro-base station and determine whether interference index meets corresponding interference index request and each default industry respectively
Whether business performance indicator meets corresponding service feature index request.
6. according to the method described in claim 2, it is characterized in that, the UE of the access micro-base station is sent out to the micro-base station
Interference coordination request message is sent, is specifically included:
The UE of the access micro-base station sends the second idle wireless resource to the micro-base station and controls RRC information, and described the
Two, which eat dishes without rice or wine, carries the UE mark, micro-base station mark and interference coordination request of the access micro-base station in RRC information and refers to
Show field, and the value of interference coordination request indication field is preset value, the preset value is for indicating the access institute
The UE for stating micro-base station is protected UE.
7. method according to any one of claims 1 to 6, which is characterized in that the micro-base station sends to macro base station and opens
Interference coordination SNability request message, specifically includes:
The micro-base station sends the first X2 interface message to macro base station, and the first X2 interface message includes that micro-base station identifies, is macro
Base Station Identification and unlatching interference coordination function request field, and the value for opening interference coordination function request field is default
Value, the preset value is for indicating that interference coordination function is opened in request.
8. method according to any one of claims 1 to 6, which is characterized in that the macro base station is sent to the micro-base station
Interference coordination function instruction message is opened, is specifically included:
The macro base station sends the second X2 interface message to micro-base station, and the second X2 interface message includes that micro-base station identifies, is macro
Base Station Identification and unlatching interference coordination function indication field, and the value for opening interference coordination function indication field is default
Value, the preset value are used to indicate the micro-base station and open interference coordination function.
9. a kind of open system of interference coordination function, which is characterized in that the system comprises micro-base stations and macro base station, in which:
The micro-base station, for determine the number of protected UE account for access the micro-base station UE sum ratio, it is described by
Protection UE is the user equipment for interfering index and pre-set business performance indicator that corresponding index request is not satisfied；
When the ratio is greater than preset ratio threshold value, the micro-base station sends unlatching interference coordination function to the macro base station and asks
Seek message；
The macro base station determines that the load of the macro base station is after receiving the unlatching interference coordination SNability request message
No is more than default load threshold；
When the load of the macro base station is less than the default load threshold, the macro base station sends to the micro-base station and opens
Interference coordination function instruction message, the unlatching interference coordination function instruction message is for notifying that it is described dry that the micro-base station is opened
Disturb coordination function.
10. system according to claim 9, which is characterized in that the system also includes user equipment (UE)s, in which:
The micro-base station is also used to send interference coordination measurement instruction message respectively to the UE of each access micro-base station；
The UE of the access micro-base station, for determining interference respectively after receiving the interference coordination measurement instruction message
Whether index meets corresponding interference index request and whether each pre-set business performance indicator meets corresponding service feature
Index request；When corresponding index request is not satisfied, Xiang Suoshu micro-base station sends interference coordination request message, the interference
Coordinate mark, the mark of the micro-base station that the UE of the access micro-base station is carried in request message；
The micro-base station is also used to receive the interference coordination request message that the UE of the access micro-base station is sent, will be described
The UE of the access micro-base station carried in interference coordination request message identifies corresponding UE and is determined as protected UE；Described in statistics
The sum of the UE of the number and access micro-base station of protected UE；Described in determining that the number of the protected UE accounts for and access
The ratio of the sum of the UE of micro-base station.
11. system according to claim 10, which is characterized in that
The UE of the access micro-base station is also used to determine that SINR is when the interference index is the signal-to-noise ratio SINR of UE
It is no to be greater than default SINR thresholding；When the SINR is greater than the default SINR thresholding, determine that the interference index meets interference
Index request；Otherwise, it determines the interference index is unsatisfactory for the interference index request；
Or
The UE of the access micro-base station is also used to when the Reference Signal Received Power that the interference index is adjacent macro cell
When RSRP, determine whether the RSRP is less than default RSRP thresholding；When the RSRP is less than the default RSRP thresholding, determine
The interference index meets interference index request；Otherwise, it determines the interference index is unsatisfactory for interference index request.
12. system according to claim 10, which is characterized in that
The UE of the access micro-base station, is also used to when the pre-set business performance indicator include voice service performance indicator,
And whether institute's voice traffic performance indicator determines voice service time delay respectively when including time delay, speech service quality, percent of call completed
Whether it is greater than preset quality thresholding, that whether the percent of call completed is greater than is default less than default time delay thresholding, the speech service quality
Percent of call completed thresholding；
When institute's voice traffic time delay is less than the default time delay thresholding, the speech service quality is greater than the preset quality door
Limit and the percent of call completed be greater than the default percent of call completed thresholding when, determine that institute's voice traffic performance indicator meets voice service
It can index request；Otherwise, it determines institute's voice traffic performance indicator is unsatisfactory for corresponding voice service performance indicator requirement；
The UE of the access micro-base station, is also used to when the pre-set business performance indicator further include that data service performance refers to
Mark, and when the data service performance indicator includes throughput and Block Error Rate, determine whether the throughput of data service is big respectively
Whether it is less than default threshold bit error rate in default throughput thresholding and the bit error rate；
When the throughput is greater than the default throughput thresholding and the bit error rate is less than the default threshold bit error rate, really
The fixed data service performance indicator meets corresponding data service performance requirement；Otherwise, it determines the data service performance refers to
Mark is unsatisfactory for corresponding data service performance requirement.
13. system according to claim 10, which is characterized in that
The micro-base station is also used to send the first idle wireless resource control RRC respectively to the UE of each access micro-base station
Message, described first, which eats dishes without rice or wine, carries the UE mark for accessing the micro-base station, micro-base station mark and interference in RRC information
Coordinated measurement indication field, and the value of interference coordination measurement indication field is preset value, the preset value is for indicating
Indicate that the UE of the access micro-base station determines whether interference index meets corresponding interference index request and each respectively
Whether pre-set business performance indicator meets corresponding service feature index request.
14. system according to claim 10, which is characterized in that
The UE of the access micro-base station is also used to send the second idle wireless resource control RRC information to the micro-base station,
Described second, which eats dishes without rice or wine, carries the UE mark for accessing the micro-base station, micro-base station mark and interference coordination in RRC information
Indication field is requested, and the value of interference coordination request indication field is preset value, the preset value is for indicating described
The UE for accessing the micro-base station is protected UE.
15. according to the described in any item systems of claim 9 to 14, which is characterized in that
The micro-base station is also used to send the first X2 interface message to the macro base station, and the first X2 interface message includes micro-
Base Station Identification, macro base station mark and unlatching interference coordination function request field, and the unlatching interference coordination function request field
Value be preset value, the preset value for indicate request open interference coordination function.
16. according to the described in any item systems of claim 9 to 14, which is characterized in that
The macro base station is also used to send the second X2 interface message to the micro-base station, and the second X2 interface message includes micro-
Base Station Identification, macro base station mark and unlatching interference coordination function indication field, and the unlatching interference coordination function indication field
Value be preset value, the preset value is used to indicate the micro-base station and opens interference coordination function.
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| CN102202311A (en) * | 2010-03-27 | 2011-09-28 | 华为技术有限公司 | Coordination method of interference, equipment and system thereof |
| CN102300306B (en) * | 2010-06-22 | 2014-11-26 | 电信科学技术研究院 | Power control method, device and system |
| US8824383B2 (en) * | 2010-06-22 | 2014-09-02 | Telefonaktiebolaget L M Ericsson (Publ) | Downlink scheduling in heterogeneous networks |
| CN102761973B (en) * | 2011-04-29 | 2014-11-26 | 普天信息技术研究院有限公司 | Method and system for adjusting almost bias subframe in heterogeneous network |
| CN103297981B (en) * | 2012-03-05 | 2016-03-02 | 华为技术有限公司 | The method and apparatus of inter-station interference coordinating |
| CN102711149A (en) * | 2012-06-26 | 2012-10-03 | 电子科技大学 | Control method for interference coordination mechanism of HeNB (Home evolved Node B) |
| KR101910008B1 (en) * | 2012-11-07 | 2018-12-19 | 삼성전자주식회사 | Method and apparatus for inter cell interference coordination in mobile communication system |
| CN104053163B (en) * | 2014-06-24 | 2017-11-03 | 无锡北邮感知技术产业研究院有限公司 | A kind of network-building method based on the heterogeneous wireless network for calculating processing |
| US10034175B2 (en) * | 2014-07-01 | 2018-07-24 | Nokia Solutions And Networks Oy | Interference coordination partnership establishment and termination |
| CN105992243B (en) * | 2015-01-27 | 2019-07-23 | 普天信息技术有限公司 | The dynamic time domain interference coordination method and device of heterogeneous network |
| CN104640193A (en) * | 2015-01-30 | 2015-05-20 | 中国联合网络通信集团有限公司 | Interference coordination method and device |
| CN105307272B (en) * | 2015-08-31 | 2018-10-02 | 中国联合网络通信集团有限公司 | A kind of inter-cell interference coordination method, macro base station and micro-base station |
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