CN105992357A - Microcell dynamic uplink-downlink subframe configuration method and device based on X2 interface - Google Patents

Abstract

The invention relates to the communication field, especially to a microcell dynamic uplink-downlink subframe configuration method and device based on an X2 interface. The method comprises that when a preset dynamic uplink-downlink subframe configuration period is reached, the practical uplink-downlink resource occupation rate of a microcell itself and the uplink-downlink resource occupation rate based on required service speed are calculated if themicrocell is determined to be capable of executing dynamic uplink-downlink subframe reconfiguration according to a cluster identification of the microcell, and whether the microcell includes uplink and downlink services is determined on the basis of calculation results; if the microcell is determined to include the uplink and downlink services, the uplink-downlink resource occupation rate based on the required service speed of the cluster of the microcell is calculated; and the microcell determines target uplink-downlink subframe configuration of itself according to the uplink-downlink resource occupation rate based on the required service speed of the cluster of the microcell. Through the method, uplink and downlink subframe configuration can be adjusted adaptively according to service conditions, the frequency utilization rate of a system is improved, and power consumption of the microcell can be reduced.

Description

The method and device of Microcell based on X2 interface dynamic ascending-descending subframes configuration

Technical field

The present invention relates to the communications field, particularly relate to the dynamic up-downgoing in a kind of Microcell based on X2 interface The method and device of sub-frame configuration.

Background technology

LTE standard architectural framework is supported simultaneously FDD (Frequency Division Duplexing, FDD) and two kinds of duplex modes of time division duplex (Time Division Duplexing, TDD), TDD is used The LTE system that duplex mode realizes is also referred to as TD-LTE system.

TD-LTE system has the advantage that

(1) spectrum disposition is flexible, and the availability of frequency spectrum is high.Due to TD-LTE system can use non-right Claim frequency spectrum, it is possible to be flexibly utilized by some scrappy frequency spectrums, be therefore easier to obtain the big bandwidth spectrum of continuous print.

(2) proportional arrangement of up-downgoing resource neatly, it is possible to more effectively support that asymmetrical IP is grouped industry Business.Owing in TD-LTE system, uplink and downlink channel occupancy resource can be by adjusting ascending-descending subframes ratio Mode carries out flexible configuration, and therefore, TD-LTE system is especially suitable for non-symmetrical service, such as IP Packet Service.

Based on above advantage, TD-LTE system realizes for systemic-function, improves systematic function and system The aspect such as flexible Application there is obvious advantage.

Additionally, TD-LTE system also has a considerable advantage to be to be capable of subframe basic of distribution business feelings Condition carries out self-adaptative adjustment.Strengthen interference management and service adaptation (Enhanced Interference Management and Traffic Adaption, LTE Rel-12TDD eIMTA) technology be mainly used in solve Service adaptation when Microcell carries out network design and interference management problem.Wherein, service adaptation is main Refer to that the ascending-descending subframes of Microcell configures along with the change of business dynamically adjusts, and then system spectrum can be improved Service efficiency, meanwhile, it is capable to reduce the energy consumption of system.

Specifying according to 3GPP LTE standard agreement, TD-LTE system supports 7 kinds of different ascending-descending subframes Configuration, as it is shown in figure 1, wherein, descending sub frame proportion excursion is 40% to 90%.Grand honeybee In nest network design, owing to business is the most stable to ascending-descending subframes ratio demand situation, simultaneously in order to avoid Up-downgoing intersection subframe interference, therefore, all macrocells the most all use identical ascending-descending subframes to configure. Ascending-descending subframes configuration information is notified to user by system broadcast information.So, macrocell can not be sent out Wave TD-LTE subframe basic of distribution service conditions and carry out this advantage of self-adaptative adjustment.

But, along with the fast development of mobile communication, the application of low power nodes will be more extensive, substantial amounts of The Microcell that data service will occur in low power nodes and provides covers interior, such as microcellulor (Pico), HeNB (Home E-UTRAN Node B, Home eNodeB) etc..For low-power joints such as HeNB and Pico Point, due to its have that number of users is few, business demand substantially, launch that power is low, system frequency is high, cover away from Close to from, disturb a series of features such as less, configure not according to service conditions self-adaptative adjustment ascending-descending subframes Only can improve system resource service efficiency, and can be implemented in and reduce system energy consumption to a certain extent, can Preferably to play the advantage of TD-LTE system.

In prior art, the dynamic ascending-descending subframes in Microcell reconfigures employing centralized fashion and realizes, each small Interference and business state information are reported to Centralized Controller by district, and Centralized Controller reports according to each Microcell Disturbed condition completes bunch dividing for Microcell, and the service condition reported according to each Microcell realize with bunch Ascending-descending subframes for unit reconfigures.

But, realize owing to the dynamic ascending-descending subframes of Microcell reconfigures employing centralized system, it is therefore desirable to Additionally increase Centralized Controller at network side, and need Microcell to be disturbed and service condition reports in time To Centralized Controller, carry out bunch dividing for Centralized Controller and by bunch in units of ascending-descending subframes heavily join Put.Variant in view of the interference between distinct device manufacturer and service condition mode, centralized fashion is unfavorable Interconnect in different vendor equipment.It addition, all Microcells are all used identical by central control unit Configuration parameter perform bunch divide and by bunch in units of ascending-descending subframes reconfigure, it is impossible to residing for Microcell Wireless scene select corresponding configuration parameter, the performance of system may be reduced.

Summary of the invention

The embodiment of the present invention provides the method for a kind of Microcell based on X2 interface dynamic ascending-descending subframes configuration And device, subframe can not be selected according to the wireless scene residing for Microcell present in prior art in order to solving Configuration parameter, causes the problem that systematic function is relatively low.

The concrete technical scheme that the embodiment of the present invention provides is as follows:

The method that the dynamic ascending-descending subframes in a kind of Microcell based on X2 interface reconfigures, including:

When arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, if Microcell is according to self place bunch Mark determines that self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate the up-downgoing real resource of self Occupancy and up-downgoing resources occupation rate based on business demand speed, and judge that self is based on result of calculation No have up-downgoing business；

If described Microcell determines self have up-downgoing business, then calculate the upper and lower of place bunch, described Microcell Row resources occupation rate based on business demand speed；

Microcell according to the up-downgoing resources occupation rate based on business demand speed at place bunch, described Microcell, Determine the target ascending-descending subframes configuration of described Microcell.

The method can configure according to state of affairs self-adaptative adjustment ascending-descending subframes, is possible not only to raising system Frequency spectrum service efficiency, and Microcell power consumption can be reduced.

It is also preferred that the left determine according to the mark at self place bunch in described Microcell and self be able to carry out the most up and down Before row subframe reconfigures, farther include:

Microcell determines that not comprising frequency or adjacent frequency macrocell and bunch scale together in self place bunch is less than or equal to pre- If bunch scale thresholding, it is determined that described Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and to institute The mark stating place bunch, Microcell is marked.

It is also preferred that the left Microcell determines self place bunch, including:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Microcell performs to measure for the RSRP of each community, and records each community RSRP in the i-th cycle Final measured value；

Microcell, filters out at the final measured value of RSRP in i-th cycle based on each community described In i cycle, the final measured value of RSRP is more than bunch first set of cells of division RSRP threshold value, and will Described Microcell and described first set of cells collectively form initial cluster C of described Microcell₀；

Microcell is by initial cluster C of self₀Composition notify described first set of cells by X2 interface, and Receive the initial cluster composition notification message that described first set of cells returns；

Microcell is according to initial cluster C of self₀Constitute and described first set of cells return initial cluster structure Become notification message, update composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration of described Microcell Bunch C₀ ¹', and determine described 1st iteration bunch C₀ ¹In addition to described Microcell second included is little District gathers；

Microcell is by described 1st iteration bunch C₀ ¹Described second set of cells is notified by X2 interface, and Receive the 1st the iteration bunch notification message that described second set of cells returns；

Microcell is according to the 1st the iteration bunch C of self₀ ¹Change for 1st time with what described second set of cells returned Generation bunch notification message, updates composition and bunch scale at self place bunch, is designated as the 2nd iteration bunch C₀ ², with And determine described 2nd iteration bunch C₀ ²The 3rd set of cells in addition to described Microcell included, and Continue executing with iterative operation；

Wherein, after the t time iteration, t > 1, described Microcell calculates bunch scale and of the t time iteration bunch The difference of bunch scale of 1 iteration bunch of t, and calculate bunch rule of described difference and described 1 iteration bunch of t The ratio of mould, and judge that whether described ratio is less than bunch scale change thresholding preset；If, it is determined that from Body place bunch is the t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that Self place bunch is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

It is also preferred that the left when arriving the i-th measured for Reference Signal Received Power RSRP that Microcell is preset During the cycle, Microcell performs to measure for the RSRP of each community, and records each community in i-th week The final measured value of RSRP of phase, farther includes:

When Microcell detects a Microcell start, trigger RSRP aperiodic for a described Microcell Measure, and record the final measured value of RSRP of a described Microcell.

It is also preferred that the left when arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, if Described Microcell determines that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes reconfigures, Then calculate from the up-downgoing real resource occupancy in i-th cycle and up-downgoing based on business demand speed Resources occupation rate, and judge whether self has up-downgoing business based on result of calculation, including:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, described Microcell Mark according to self place bunch determines that self being able to carry out dynamic ascending-descending subframes reconfigures；

Microcell is based on described Microcell up-downgoing of average each subframe within the i-th cycle actual distribution thing Reason Resource Block PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, and i-th-1 The up-downgoing real resource occupancy in individual cycle, calculates the described Microcell up-downgoing reality in the i-th cycle Resources occupation rate；

The Microcell up-downgoing time based on described Microcell average each subframe within the i-th cycle distributes PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, up-downgoing institute in the i-th cycle There are the active service speed of carrying, and the up-downgoing rate requirement of each carrying, calculate described Microcell and exist The up-downgoing in i-th cycle resources occupation rate based on business demand speed；

Based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if described Microcell is in the i-th cycle Up-downgoing real resource occupancy be respectively less than preset up-downgoing judge thresholding, and described Microcell without business Up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than the up-downgoing preset Judging thresholding without business, the most described Microcell determines self do not have up-downgoing business, otherwise determines and self has Up-downgoing business.

It is also preferred that the left based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described micro- Community is in the up-downgoing resources occupation rate based on business demand speed in i-th cycle, if described Microcell exists The up-downgoing real resource occupancy in i-th cycle is respectively less than the up-downgoing preset and judges thresholding without business, and The described Microcell up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than pre- If up-downgoing judge thresholding without business, after the most described Microcell determines and self do not has up-downgoing business, enter One step includes:

For a Microcell not having up-downgoing business, described one does not has the Microcell of up-downgoing business to determine certainly Target ascending-descending subframes in the i-th cycle is configured to sub-frame configuration 0.

If it is also preferred that the left described Microcell determines self have up-downgoing business, then calculating place, described Microcell Bunch up-downgoing resources occupation rate based on business demand speed, including:

If described Microcell determines self have up-downgoing business, the most described Microcell is based on described Microcell institute Bunch in there is the Microcell sum of up-downgoing business, and described in there is the Microcell of up-downgoing business the The up-downgoing in i cycle resources occupation rate based on business demand speed, calculates place bunch, described Microcell Up-downgoing resources occupation rate based on business demand speed.

It is also preferred that the left Microcell according to the up-downgoing in the i-th cycle at place bunch, described Microcell based on business The resources occupation rate of demand rate, in conjunction with uplink load the first thresholding preset, default downlink load first Thresholding and default downlink load the second thresholding, determine that described Microcell is upper and lower in the target in i-th cycle Row sub-frame configuration, including:

If place bunch, described Microcell is in descending based on business demand speed the resources occupation rate in i-th cycle Less than or equal to downlink load the second thresholding preset, the most described Microcell determines in the target in i-th cycle Descending sub frame is configured to sub-frame configuration 0；

If place bunch, described Microcell is in up based on business demand speed the resources occupation rate in i-th cycle More than descending based on industry in the i-th cycle of uplink load the first thresholding preset and place bunch, described Microcell The resources occupation rate of business demand rate is more than downlink load the first thresholding preset, and the most described Microcell determines The sub-frame configuration in target ascending-descending subframes configuration the i-th-1 cycle of maintenance in i-th cycle；

Otherwise, Microcell is according to up based on business demand speed the resources occupation rate in i-th cycle and the The ratio of descending based on business demand speed the resources occupation rate in i cycle, determines and connects most with described ratio Near ascending-descending subframes ratio configures as target ascending-descending subframes.

The device that the dynamic ascending-descending subframes in a kind of Microcell based on X2 interface reconfigures, including:

Judging unit, for when arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures, then the up-downgoing calculating self is real Border resources occupation rate and up-downgoing resources occupation rate based on business demand speed, and judge based on result of calculation Whether self has up-downgoing business；

Computing unit, for if it is determined that self have up-downgoing business, then calculates place bunch, described Microcell Up-downgoing resources occupation rate based on business demand speed；

Dispensing unit, for the up-downgoing resource based on business demand speed according to place bunch, described Microcell Occupancy, determines the target ascending-descending subframes configuration of described Microcell.

Configuring according to state of affairs self-adaptative adjustment ascending-descending subframes, the frequency spectrum being possible not only to raising system uses Efficiency, and Microcell power consumption can be reduced.

It is also preferred that the left determining that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes heavily joins Time before putting, farther include:

Processing unit, is used for determining in self place bunch that not comprising frequency or adjacent frequency macrocell and a bunch scale together is less than Equal to bunch scale thresholding preset, it is determined that described Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, And the mark at place bunch, described Microcell is marked.

It is also preferred that the left determine self place bunch, described processing unit is further used for:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Perform to measure for the RSRP of each community, and it is final at the RSRP in i-th cycle to record each community Measured value；

Based on each community described at the final measured value of RSRP in i-th cycle, filter out in i-th week The final measured value of interim RSRP is more than bunch first set of cells dividing RSRP threshold value, and by described micro- Community and described first set of cells collectively form initial cluster C of described Microcell₀；

By initial cluster C of self₀Composition notify described first set of cells by X2 interface, and receive institute State the initial cluster composition notification message that the first set of cells returns；

Initial cluster C according to self₀Constitute and described first set of cells return initial cluster constitute notice Message, updates composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch C of described Microcell₀ ¹', And determine described 1st iteration bunch C₀ ¹The second set of cells in addition to described Microcell included；

By described 1st iteration bunch C₀ ¹Notify described second set of cells by X2 interface, and receive institute State the 1st the iteration bunch notification message that the second set of cells returns；

The 1st the iteration bunch C according to self₀ ¹The 1st iteration bunch returned with described second set of cells is led to Know message, update composition and bunch scale at self place bunch, be designated as the 2nd iteration bunch C₀ ², and determine Described 2nd iteration bunch C₀ ²The 3rd set of cells in addition to described Microcell included, and continue to hold Row iteration operates；

Wherein, after the t time iteration, t > 1, calculate bunch scale and 1 iteration of t of the t time iteration bunch Bunch the difference of bunch scale, and calculate the ratio of described difference and bunch scale of described 1 iteration bunch of t, And judge that whether described ratio is less than bunch scale change thresholding preset；If, it is determined that self place bunch is The t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch It is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

It is also preferred that the left when arriving the i-th measured for Reference Signal Received Power RSRP that Microcell is preset During the cycle, perform to measure for the RSRP of each community, and record each community RSRP in the i-th cycle During final measured value, described processing unit is further used for:

When a Microcell start being detected, trigger RSRP aperiodic for a described Microcell and measure, And record the final measured value of RSRP of a described Microcell.

It is also preferred that the left when arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, root Determine that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate from The up-downgoing real resource occupancy in i-th cycle and up-downgoing resource occupation based on business demand speed Rate, and when judging whether self has up-downgoing business based on result of calculation, described judging unit is used for:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures；

Based on described Microcell up-downgoing of average each subframe within the i-th cycle actual distribution physical resource Block PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, and the i-th-1 cycle Up-downgoing real resource occupancy, calculate the described Microcell up-downgoing real resource in the i-th cycle and account for By rate；

Up-downgoing time based on described Microcell average each subframe within i-th cycle distribution PRB number, The up-downgoing of each subframe in described Microcell always can use PRB number, all carryings of up-downgoing in the i-th cycle Active service speed, and the up-downgoing rate requirement of each carrying, calculate described Microcell in i-th week The up-downgoing of phase resources occupation rate based on business demand speed；

Based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if described Microcell is in the i-th cycle Up-downgoing real resource occupancy be respectively less than preset up-downgoing judge thresholding, and described Microcell without business Up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than the up-downgoing preset Thresholding is judged, it is determined that self do not have up-downgoing business, otherwise determine that self there is up-downgoing business without business.

It is also preferred that the left based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described micro- Community is in the up-downgoing resources occupation rate based on business demand speed in i-th cycle, if described Microcell exists The up-downgoing real resource occupancy in i-th cycle is respectively less than the up-downgoing preset and judges thresholding without business, and The described Microcell up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than pre- If up-downgoing judge thresholding without business, it is determined that after self there is no up-downgoing business, described dispensing unit It is further used for:

For a Microcell not having up-downgoing business, determine from target up-downgoing in the i-th cycle Frame is configured to sub-frame configuration 0.

It is also preferred that the left if it is determined that self have up-downgoing business, then calculate the up-downgoing at place bunch, described Microcell During resources occupation rate based on business demand speed, described computing unit is used for:

If it is determined that self have up-downgoing business, then based in place bunch, described Microcell, there is up-downgoing business Microcell sum, and described in have the Microcell of up-downgoing business the i-th cycle up-downgoing based on The resources occupation rate of business demand speed, calculates the up-downgoing at place bunch, described Microcell based on business demand speed The resources occupation rate of rate.

It is also preferred that the left the up-downgoing in the i-th cycle according to place bunch, described Microcell is fast based on business demand The resources occupation rate of rate, in conjunction with preset uplink load the first thresholding, default downlink load the first thresholding with And downlink load the second thresholding preset, determine the described Microcell target ascending-descending subframes in the i-th cycle Configuration, described dispensing unit is used for:

If place bunch, described Microcell is in descending based on business demand speed the resources occupation rate in i-th cycle Less than or equal to downlink load the second thresholding preset, it is determined that the target ascending-descending subframes in the i-th cycle is joined It is set to sub-frame configuration 0；

If place bunch, described Microcell is in up based on business demand speed the resources occupation rate in i-th cycle More than descending based on industry in the i-th cycle of uplink load the first thresholding preset and place bunch, described Microcell The resources occupation rate of business demand rate is more than downlink load the first thresholding preset, it is determined that in the i-th cycle Target ascending-descending subframes configuration the i-th-1 cycle of maintenance sub-frame configuration；

Otherwise, according to up based on business demand speed resources occupation rate and the i-th week in i-th cycle The ratio of descending based on business demand speed the resources occupation rate of phase, determines on immediate with described ratio Descending sub frame ratio configures as target ascending-descending subframes.

The dynamic ascending-descending subframes reconfiguration device in Microcell based on X2 interface include processor, transceiver and Memorizer, wherein:

Processor, for reading the program in memorizer, performs following process:

When arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, if the mark according to self place bunch is true Determine self to be able to carry out dynamic ascending-descending subframes to reconfigure, then calculate the up-downgoing real resource occupancy of self Resources occupation rate based on business demand speed with up-downgoing, and judge whether self has based on result of calculation Up-downgoing business；If it is determined that self have up-downgoing business, then calculate the up-downgoing at place bunch, described Microcell Resources occupation rate based on business demand speed；Up-downgoing according to place bunch, described Microcell is based on business need Seek the resources occupation rate of speed, determine the target ascending-descending subframes configuration of described Microcell.

Transceiver, for receiving under the control of a processor and sending data.

It is also preferred that the left determining that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes heavily joins Time before putting, processor is further used for:

Determine self place bunch does not comprise with frequency or adjacent frequency macrocell and bunch scale less than or equal to preset bunch Scale thresholding, it is determined that described Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and to described small The mark at place bunch, district is marked.

It is also preferred that the left determine self place bunch, processor is further used for:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Perform to measure for the RSRP of each community, and it is final at the RSRP in i-th cycle to record each community Measured value；

Based on each community described at the final measured value of RSRP in i-th cycle, filter out in i-th week The final measured value of interim RSRP is more than bunch first set of cells dividing RSRP threshold value, and by described micro- Community and described first set of cells collectively form initial cluster C of described Microcell₀；

By initial cluster C of self₀Composition notify described first set of cells by X2 interface, and receive institute State the initial cluster composition notification message that the first set of cells returns；

Initial cluster C according to self₀Constitute and described first set of cells return initial cluster constitute notice Message, updates composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch C of described Microcell₀ ¹', And determine described 1st iteration bunch C₀ ¹The second set of cells in addition to described Microcell included；

By described 1st iteration bunch C₀ ¹Notify described second set of cells by X2 interface, and receive institute State the 1st the iteration bunch notification message that the second set of cells returns；

The 1st the iteration bunch C according to self₀ ¹The 1st iteration bunch returned with described second set of cells is led to Know message, update composition and bunch scale at self place bunch, be designated as the 2nd iteration bunch C₀ ², and determine Described 2nd iteration bunch C₀ ²The 3rd set of cells in addition to described Microcell included, and continue to hold Row iteration operates；

Wherein, after the t time iteration, t > 1, calculate bunch scale and 1 iteration of t of the t time iteration bunch Bunch the difference of bunch scale, and calculate the ratio of described difference and bunch scale of described 1 iteration bunch of t, And judge that whether described ratio is less than bunch scale change thresholding preset；If, it is determined that self place bunch is The t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch It is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

It is also preferred that the left when arriving the i-th measured for Reference Signal Received Power RSRP that Microcell is preset During the cycle, perform to measure for the RSRP of each community, and record each community RSRP in the i-th cycle During final measured value, processor is further used for:

When a Microcell start being detected, trigger RSRP aperiodic for a described Microcell and measure, And record the final measured value of RSRP of a described Microcell.

It is also preferred that the left when arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, root Determine that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate from The up-downgoing real resource occupancy in i-th cycle and up-downgoing resource occupation based on business demand speed Rate, and when judging whether self has up-downgoing business based on result of calculation, processor is used for:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures；

Based on described Microcell up-downgoing of average each subframe within the i-th cycle actual distribution physical resource Block PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, and the i-th-1 cycle Up-downgoing real resource occupancy, calculate the described Microcell up-downgoing real resource in the i-th cycle and account for By rate；

Up-downgoing time based on described Microcell average each subframe within i-th cycle distribution PRB number, The up-downgoing of each subframe in described Microcell always can use PRB number, all carryings of up-downgoing in the i-th cycle Active service speed, and the up-downgoing rate requirement of each carrying, calculate described Microcell in i-th week The up-downgoing of phase resources occupation rate based on business demand speed；

Based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if described Microcell is in the i-th cycle Up-downgoing real resource occupancy be respectively less than preset up-downgoing judge thresholding, and described Microcell without business Up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than the up-downgoing preset Thresholding is judged, it is determined that self do not have up-downgoing business, otherwise determine that self there is up-downgoing business without business.

It is also preferred that the left based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described micro- Community is in the up-downgoing resources occupation rate based on business demand speed in i-th cycle, if described Microcell exists The up-downgoing real resource occupancy in i-th cycle is respectively less than the up-downgoing preset and judges thresholding without business, and The described Microcell up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than pre- If up-downgoing judge thresholding without business, it is determined that after self not having up-downgoing business, processor is further For:

For a Microcell not having up-downgoing business, determine from target up-downgoing in the i-th cycle Frame is configured to sub-frame configuration 0.

It is also preferred that the left if it is determined that self have up-downgoing business, then calculate the up-downgoing at place bunch, described Microcell During resources occupation rate based on business demand speed, processor is used for:

If it is determined that self have up-downgoing business, then based in place bunch, described Microcell, there is up-downgoing business Microcell sum, and described in have the Microcell of up-downgoing business the i-th cycle up-downgoing based on The resources occupation rate of business demand speed, calculates the up-downgoing at place bunch, described Microcell based on business demand speed The resources occupation rate of rate.

It is also preferred that the left the up-downgoing in the i-th cycle according to place bunch, described Microcell is fast based on business demand The resources occupation rate of rate, in conjunction with preset uplink load the first thresholding, default downlink load the first thresholding with And downlink load the second thresholding preset, determine the described Microcell target ascending-descending subframes in the i-th cycle Configuration, processor is used for:

If place bunch, described Microcell is in descending based on business demand speed the resources occupation rate in i-th cycle Less than or equal to downlink load the second thresholding preset, it is determined that the target ascending-descending subframes in the i-th cycle is joined It is set to sub-frame configuration 0；

If place bunch, described Microcell is in up based on business demand speed the resources occupation rate in i-th cycle More than descending based on industry in the i-th cycle of uplink load the first thresholding preset and place bunch, described Microcell The resources occupation rate of business demand rate is more than downlink load the first thresholding preset, it is determined that in the i-th cycle Target ascending-descending subframes configuration the i-th-1 cycle of maintenance sub-frame configuration；

Otherwise, according to up based on business demand speed resources occupation rate and the i-th week in i-th cycle The ratio of descending based on business demand speed the resources occupation rate of phase, determines on immediate with described ratio Descending sub frame ratio configures as target ascending-descending subframes.

Wherein, bus architecture can include bus and the bridge of any number of interconnection, is specifically represented by processor One or more processors and the various electrical chains of memorizer that represent of memorizer be connected together.Bus architecture Other electrical chains various of such as ancillary equipment, manostat and management circuit or the like can also be connected on Together, these are all to it is known in the art, therefore, are the most no longer described further it.Bus Interface provides interface.Transceiver can be multiple element, i.e. includes transmitter and transceiver, it is provided that be used for The unit communicated with other devices various on transmission medium.Processor is responsible for bus architecture and common place Reason, memorizer can store the data that processor is used when performing operation.

Accompanying drawing explanation

Fig. 1 is TD-LTE ascending-descending subframes configuration schematic diagram in background of invention；

Fig. 2 is the general introduction of the dynamic ascending-descending subframes in Microcell based on X2 interface configuration in the embodiment of the present invention Flow chart；

Fig. 3 is the principle of the dynamic ascending-descending subframes in Microcell based on X2 interface configuration in the embodiment of the present invention Figure；

Fig. 4 is the concrete of the dynamic ascending-descending subframes in Microcell based on X2 interface configuration in the embodiment of the present invention Flow chart；

Fig. 5 is the structure of the dynamic ascending-descending subframes in Microcell based on X2 interface configuration in the embodiment of the present invention Schematic diagram；

Fig. 6 is the device of the dynamic ascending-descending subframes in Microcell based on X2 interface configuration in the embodiment of the present invention Schematic diagram.

Detailed description of the invention

In order to solve subframe can not to be selected to join according to the wireless scene residing for Microcell present in prior art Put parameter, cause the problem that systematic function is relatively low, the invention provides a kind of Microcell based on X2 interface The dynamically method and device of ascending-descending subframes configuration, the method is: when arriving the dynamic ascending-descending subframes preset When reconfiguring the cycle, if Microcell determines according to the mark at self place bunch self is able to carry out dynamic up-downgoing Subframe reconfigures, then calculate self up-downgoing real resource occupancy and up-downgoing based on business demand speed Resources occupation rate, and judge whether self has up-downgoing business based on result of calculation；If Microcell determines Self there is up-downgoing business, then calculate the up-downgoing resource based on business demand speed at place bunch, Microcell Occupancy；Microcell according to the up-downgoing resources occupation rate based on business demand speed at place bunch, Microcell, Determine the target ascending-descending subframes configuration of Microcell.

Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.

Refering to shown in Fig. 2 and Fig. 3, in the embodiment of the present invention, to Microcell based on X2 interface dynamically on The detailed process of descending sub frame configuration is:

In traditional LTE system network, X2 interface refers to the interface between base station (e-NodeB), should Interface supports data and the directly transmission of signaling between e-NodeB.Interconnected by X2 interface between e-NodeB Intercommunication, defines mesh network.

X2 interface between the X2 interface in small interval with above-mentioned e-NodeB is identical, is mainly used in Microcell Between data and signalling.In the present invention, the X2 interface in small interval is mainly used in transmitting Microcell Measure the RSRP information obtained and the various resources occupation rate information obtained are added up in Microcell.

Before Microcell being carried out dynamic ascending-descending subframes configuration based on X2 interface, to first determine that this is micro- Place bunch, community self, specifically includes:

1) Microcell performs the periodicity for each community and acyclic RSRP measures.

When arrive Microcell preset for Reference Signal Received Power (Reference Signal Receiving Power, RSRP) measure the i-th cycle time, Microcell perform for each community RSRP measure, And record each community final measured value of RSRP in the i-th cycle.

Concrete, Microcell SC₀Perform periodically RSRP to measure, when arriving the RSRP that Microcell is preset Measure cycle T_cTime, kth adjacent frequency or adjacent frequency community together that Microcell measurement obtains are in the i-th cycle RSRP value is designated as RSRP_k(i).Need exist for RSRP_kI the measured value of () is smoothed, and record kth Individual adjacent same frequency or the adjacent frequency community final measured value of RSRP in the i-th cycle are

The kth measured for Microcell is adjacent with frequency or adjacent frequency community, in the final measurement in i-th cycle The computational methods of value are as follows:

${\stackrel{\‾}{\mathrm{RSRP}}}_k\left(i\right)=\mathrm{\α}\·{\mathrm{RSRP}}_k\left(i\right)+(1-\mathrm{\α})\·\stackrel{\‾}{{\mathrm{RSRP}}_k}(i-1)$

Wherein, α represents smoothing factor, span be (0,1]；K be expressed as Microcell adjacent with frequency or Adjacent frequency cell ID；I is the positive integer more than or equal to 1.

Especially, kth is adjacent is designated as with frequency or the adjacent frequency community final measured value the 1st cycle: $\stackrel{\‾}{{\mathrm{RSRP}}_k}\left(1\right)={\mathrm{RSRP}}_k\left(1\right).$

Additionally, the RSRP of Microcell measures also supports aperiodic metering system.As Microcell SC₀Detection During to a Microcell start, trigger RSRP aperiodic for a Microcell and measure, and record a Microcell The final measured value of RSRP, such as, s is adjacent is designated as RSRPs (1) with frequency or adjacent frequency cell measurements.

2) Microcell performs a bunch division according to each community RSRP measurement result.

Microcell at the final measured value of RSRP in i-th cycle, filters out i-th week based on each community The final measured value of RSRP of phase is more than bunch community initial cluster as Microcell dividing RSRP threshold value.

Concrete, Microcell note is measured the adjacent of RSRP and with frequency or adjacent frequency set of cells is: { SC₀, SC₁..., SC_k..., SC_N}.Wherein, SC₀Representing Microcell self, remaining community is adjacent with frequency Or adjacent frequency community, N represents the adjacent same frequency or adjacent frequency community sum that Microcell measurement is arrived.

Microcell, filters out in i-th at the final measured value of RSRP in i-th cycle based on N number of community In cycle, the final measured value of RSRP is more than bunch first set of cells of division RSRP threshold value, and by small District and the first set of cells collectively form initial cluster C of Microcell₀, it is designated as:

C₀={ SC₀, SC₁ ⁰..., SC_k ⁰..., SC_M ⁰, wherein, M represents and filters out in i-th In cycle, the final measured value of RSRP is total more than bunch the first set of cells of division RSRP threshold value, and first Set of cells is: { SC₁ ⁰..., SC_k ⁰..., SC_M ⁰}。

Microcell is by initial cluster C of self₀Composition notify the first set of cells by X2 interface, and receive The initial cluster that first set of cells returns constitutes notification message.

Concrete, Microcell is by bunch C₀Composition notify the first set of cells SC by X2 interface₁ ⁰..., SC_k ⁰..., SC_M ⁰。

First set of cells SC₁ ⁰..., SC_k ⁰..., SC_M ⁰Notice local microenvironment community SC₀At the beginning of respective Beginning bunch, it is designated as respectively: C₁..., C_M。

Microcell is according to initial cluster C of self₀Constitute and initial cluster that the first set of cells returns constitutes logical Know message, update composition and bunch scale at self place bunch, it is thus achieved that Microcell SC₀The 1st iteration bunch C₀ ¹', and determine the 1st iteration bunch C₀ ¹Include except Microcell SC₀Outside the second set of cells.

Microcell SC₀The 1st iteration bunch after renewal, is designated as: C₀ ¹={ C₀, C₁..., C_M}={ SC₀, SC₁ ¹..., SC_k ¹..., SC_P ¹}。

Second set of cells is { SC₁ ¹..., SC_k ¹..., SC_P ¹, wherein, Microcell SC₀After renewal Bunch scale (P+1) of the 1st iteration bunch more than or equal to bunch scale (M+1) of initial cluster.

Microcell is by the 1st iteration bunch C₀ ¹Notify the second set of cells by X2 interface, and receive second The 1st the iteration bunch notification message that set of cells returns；

Microcell is according to the 1st the iteration bunch C of self₀ ¹The 1st iteration bunch returned with the second set of cells Notification message, updates composition and bunch scale at self place bunch, is designated as the 2nd iteration bunch C₀ ², and really Fixed 2nd iteration bunch C₀ ²The 3rd set of cells in addition to Microcell included, and continue executing with iteration Operation.

Microcell SC₀A bunch division result for the 2nd iteration after renewal is designated as: C₀ ²={ C₀ ¹, C₁ ²..., C_P ¹}={ SC₀, SC₁ ²..., SC_k ²..., SC_Q ²}。

3rd district's collection is combined into { SC₁ ²..., SC_k ²..., SC_Q ², Microcell SC₀After renewal the 2nd Bunch scale (Q+1) of secondary iteration bunch is more than or equal to bunch scale (P+1) in bunch division result of the 1st iteration.

Repeat above-mentioned iterative process, after the t time iteration, t > 1, Microcell calculate the t time iteration bunch bunch The difference of bunch scale of scale and 1 iteration bunch of t, and calculate difference and 1 iteration bunch of t bunch The ratio of scale, and judge that whether ratio is less than bunch scale change thresholding preset；The most then Microcell is true Bunch scale at self place bunch fixed is stable, determines that self place bunch is the t time iteration bunch C₀ ^t。

Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch is the s time iteration Bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

Assume that Microcell is T (C in bunch scale of the t time iteration₀, t), in bunch scale of 1 iteration of t For T (C₀, t-1), if (T (C₀,t)-T(C₀,t-1))/T(C₀, t-1) ratio become less than bunch scale preset Change thresholding T_th, then a bunch C is shown₀ ^tBunch scale stable.Microcell determines that self place bunch is the t time iteration Bunch C₀ ^t.Otherwise, continue executing with iterative operation, when arriving the iterations thresholding s preset, it is determined that from Body place bunch is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

Bunch division of Microcell is also supported periodically and acyclic mode.When Microcell detects that one is small During district's start, trigger RSRP aperiodic for a Microcell and measure, and record the RSRP of a Microcell Final measured value, uses method consistent with the above to perform a bunch division in conjunction with other communities RSRP measurement result Process.

Before the Microcell dynamic ascending-descending subframes of execution reconfigures, also include whether place bunch, Microcell can Enough carry out ascending-descending subframes to reconfigure and judge.

Microcell determines that not comprising frequency or adjacent frequency macrocell and bunch scale together in self place bunch is less than or equal to pre- If bunch scale thresholding, it is determined that Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and to Microcell The mark at place bunch is marked.

Concrete, Microcell can not perform dynamic ascending-descending subframes when reconfiguring, and specifically includes two kinds of situations:

One, comprises in self place bunch with frequency or adjacent frequency macrocell if Microcell determines, it is determined that this is small Place bunch, district can not perform dynamic ascending-descending subframes and reconfigure.

Because macrocell coverage distance is relatively wide, if carrying out the same frequency in place bunch, Microcell or adjacent frequency macrocell Dynamically ascending-descending subframes reconfigures, and other communities may be caused severe jamming.If therefore Microcell determines Self place bunch comprise with frequency or adjacent frequency macrocell, it is determined that this place bunch, Microcell can not perform on dynamically Descending sub frame reconfigures, and this bunch be labeled as performing dynamic ascending-descending subframes reconfigures bunch.

Its two, if bunch scale of Microcell more than preset bunch scale thresholding C_th, it is determined that this Microcell institute Reconfigure bunch dynamic ascending-descending subframes can not be performed.

Because the number of cells in place bunch, Microcell is more, and the Microcell in all bunches for up-downgoing The concordance probability of business is relatively low, if to bunch in all Microcells unify dynamic ascending-descending subframes and heavily join Put the performance that might not improve system.If therefore bunch scale of Microcell is more than bunch scale door preset Limit C_th, it is determined that this place bunch, Microcell can not perform dynamic ascending-descending subframes and reconfigure, and by this bunch of mark It is designated as performing that dynamic ascending-descending subframes reconfigures bunch.

Step 200: when arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, if Microcell is according to certainly The mark at body place bunch determines that self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate the upper and lower of self Row real resource occupancy and up-downgoing resources occupation rate based on business demand speed, and based on result of calculation Judge whether self has up-downgoing business.

When arrive Microcell preset dynamic ascending-descending subframes reconfigure the i-th cycle time, Microcell according to The mark at self place bunch determines that self being able to carry out dynamic ascending-descending subframes reconfigures, and i.e. Microcell is according to it Before whether place bunch, Microcell can be carried out the judged result that ascending-descending subframes reconfigures, it is judged that Microcell from Can body perform dynamic ascending-descending subframes and reconfigure.

In Microcell, the mark according to self place bunch determines that self being able to carry out dynamic ascending-descending subframes heavily joins After putting, Microcell is based on Microcell up-downgoing of average each subframe within the i-th cycle actual distribution thing Reason Resource Block (Physical Resource Block, PRB) number, the up-downgoing of each subframe in Microcell always may be used Use PRB number, and the up-downgoing real resource occupancy in the i-th-1 cycle, calculate Microcell in i-th The up-downgoing real resource occupancy in cycle.

Concrete, the Microcell actually downlink resource utilization rate calculation within the i-th cycle is as follows:

R_{ul_act}(i)=α N_{ul_PRB}(i)/N_{ul_PRB_total}+(1-α)·R_{ul_act}(i-1)

R_{dl_act}(i)=α N_{dl_PRB}(i)/N_{dl_PRB_total}+(1-α)·R_{dl_act}(i-1)

Wherein, R_{ul_act}(i) and R_{dl_act}I () represents that the actually downlink resource of Microcell accounts in the i-th cycle respectively By rate；I is the positive integer more than or equal to 1；α represents smoothing factor, span be (0,1]；N_{ul_PRB}(i) And N_{dl_PRB}I () be the up-downgoing of average each subframe actual distribution PRB number in representing the i-th cycle respectively； N_{ul_PRB_total}And N_{dl_PRB_total}Represent that the up-downgoing of each subframe in Microcell always can use PRB number respectively.

Especially, the actually downlink resource occupancy for the Microcell in the 1st cycle is:

R_{ul_act}(1)=N_{ul_PRB}(1)/N_{ul_PRB_total}

R_{dl_act}(1)=N_{dl_PRB}(1)/N_{dl_PRB_total}

Microcell is based on the Microcell up-downgoing of average each subframe actual distribution PRB within the i-th cycle Number, the up-downgoing of each subframe in Microcell always can use PRB number, all carryings of up-downgoing in the i-th cycle Active service speed, and the up-downgoing rate requirement of each carrying, calculate Microcell in the i-th cycle Up-downgoing resources occupation rate based on business demand speed.

Concrete, the resources occupation rate computational methods based on business demand speed in Microcell i-th cycle are such as Under:

$R_{\mathrm{ul}\_\mathrm{eff}}\left(i\right)=\frac{N_{\mathrm{ul}\_\mathrm{PRB}}\left(i\right)}{R_{\mathrm{ul}\_\mathrm{SBR}}\left(i\right)}\×\underset{m_{\mathrm{ul}}=1}{\overset{M_{\mathrm{ul}}}{\mathrm{\Σ}}}{R}_{m_{\mathrm{ul}}}\left(i\right)/N_{\mathrm{ul}\_\mathrm{PRB}\_\mathrm{total}}$

$R_{\mathrm{dl}\_\mathrm{eff}}\left(i\right)=\frac{N_{\mathrm{dl}\_\mathrm{PRB}}\left(i\right)}{R_{\mathrm{dl}\_\mathrm{SBR}}\left(i\right)}\×\underset{m_{\mathrm{dl}}=1}{\overset{M_{\mathrm{dl}}}{\mathrm{\Σ}}}{R}_{m_{\mathrm{dl}}}\left(i\right)/N_{\mathrm{dl}\_\mathrm{PRB}\_\mathrm{total}}$

Wherein, R_{ul_eff}(i) and R_{dl_eff}I () represents that the up-downgoing of Microcell needs based on business in the i-th cycle respectively Seek the resources occupation rate of speed；N_{ul_PRB}(i) and N_{dl_PRB}I () be average each subframe in representing the i-th cycle respectively Up-downgoing actual distribution PRB number；R_{ul_SBR}(i) and R_{dl_SBR}I () represents that the up-downgoing in i-th cycle is owned respectively The active service speed of carrying；_MulWith_MdlWhat expression up-downgoing comprised respectively always carries number, i-th cycle During arrival, m_ulThe rate requirement of individual up carrying isM when the i-th cycle arrives_dlIndividual descending The rate requirement of carrying isN_{ul_PRB_total}And N_{dl_PRB_total}Represent the upper and lower of each subframe in Microcell respectively The total available PRB number of row.

Further, exist in up-downgoing real resource occupancy and the Microcell in i-th cycle based on Microcell The up-downgoing in i-th cycle resources occupation rate based on business demand speed, it is judged that whether Microcell self has There is up-downgoing business.

If the up-downgoing real resource occupancy that Microcell is in the i-th cycle is respectively less than the up-downgoing preset and has no property Business judges thresholding, and Microcell is in the up-downgoing resources occupation rate based on business demand speed in i-th cycle Be respectively less than the up-downgoing preset and judge thresholding without business, then Microcell determines self does not has up-downgoing business yet, Otherwise determine that self there is up-downgoing business.

Concrete, R_{ul_act}(i)<R_{ul_null}And R_{dl_act}(i)<R_{dl_null}, and R_{ul_eff}(i)<R_{ul_null}And R_{dl_eff}(i)<R_{dl_null}, then Microcell determines self does not has up-downgoing business.Wherein, R_{dl_null}: the descending value of decision threshold without business；R_{dl_null}: The up value of decision threshold without business；

For a Microcell not having up-downgoing business, this Microcell determines from the target in the i-th cycle Ascending-descending subframes is configured to sub-frame configuration 0.

Step 210: if Microcell determines self have up-downgoing business, then calculate the upper of place bunch, Microcell Descending resources occupation rate based on business demand speed.

If Microcell determines self have up-downgoing business, then Microcell based on place bunch, Microcell has on The Microcell sum of downlink business, and there is the Microcell up-downgoing in the i-th cycle of up-downgoing business Resources occupation rate based on business demand speed, calculates the up-downgoing at place bunch, Microcell based on business demand speed The resources occupation rate of rate.

Concrete, for place bunch, Microcell C₀, the up-downgoing at place bunch, Microcell is based on business demand speed Resources occupation rate computing formula as follows:

${\stackrel{-}{R}}_{\mathrm{ul}\_\mathrm{eff}}\left(i\right)=\underset{k=0}{\overset{L}{\mathrm{\&Sigma;}}}{R}_{\mathrm{ul}\_\mathrm{eff}}(i,k)/L$

${\stackrel{-}{R}}_{\mathrm{dl}\_\mathrm{eff}}\left(i\right)=\underset{k=0}{\overset{L}{\mathrm{\&Sigma;}}}{R}_{\mathrm{dl}\_\mathrm{eff}}(i,k)/L$

Wherein,WithRepresent bunch C respectively₀The up-downgoing in i-th cycle is based on business demand speed The resources occupation rate of rate；L represents a bunch C₀In have up-downgoing business Microcell sum；R_{ul_eff}(i, k) and R_{dl_eff}(i k) represents bunch C when the i-th cycle arrives respectively₀The up-downgoing that middle kth Microcell reports is based on industry The resources occupation rate of business demand rate；During k=0, represent Microcell self.

Step 220: Microcell accounts for according to the up-downgoing resource based on business demand speed at place bunch, Microcell By rate, determine the target ascending-descending subframes configuration of Microcell.

Microcell SC₀Ascending-descending subframes configuration judgement be specifically divided into following three kinds of situations:

One, if place bunch, Microcell is at descending based on business demand speed the resource occupation in i-th cycle Rate is less than or equal to downlink load the second thresholding preset, then Microcell determines that the target in the i-th cycle is upper and lower Row sub-frame configuration is sub-frame configuration 0.

Concrete, ifThen the target ascending-descending subframes of Microcell is configured to sub-frame configuration 0. Wherein, R_{dl_low}For default downlink load the second thresholding.

Its two, if place bunch, Microcell is at up based on business demand speed the resource occupation in i-th cycle Rate is more than descending based on business in the i-th cycle of uplink load the first thresholding preset and place bunch, Microcell The resources occupation rate of demand rate is more than downlink load the first thresholding preset, then Microcell determines in i-th The sub-frame configuration in target ascending-descending subframes configuration the i-th-1 cycle of maintenance in cycle.

Concrete, ifAndThen the ascending-descending subframes configuration of Microcell is not required to Adjust, maintain the sub-frame configuration in the i-th-1 cycle.Wherein, R_{ul_high}For default uplink load first Limit, R_{dl_low}For default downlink load the first thresholding.

3rd, except both the above situation, Microcell is up based on business demand speed according to the i-th cycle The ratio of descending based on business demand speed resources occupation rate in resources occupation rate and i-th cycle, really Fixed and ratio immediate ascending-descending subframes ratio configures as target ascending-descending subframes.

Concrete, Microcell SC₀Ascending-descending subframes configuration byDetermine, select up and down Row subframe ratio is closestAscending-descending subframes configuration as target ascending-descending subframes configure.

If judging to obtain additionally, Microcell i-th ascending-descending subframes reconfigures cycle Microcell ascending-descending subframes Target configuration to reconfigure the cycle from the i-th-1 ascending-descending subframes different, then execution ascending-descending subframes reconfigures, Otherwise, ascending-descending subframes configuration remains unchanged.

Refering to shown in Fig. 4, the specific implementation process of this programme is described by a typical embodiment below.

Assume a network has and comprise 6 Microcells, its numbering is followed successively by 1,2 ..., 6, each Microcell Between have preferable X2 mouth to connect, around each Microcell all without with frequency or the macrocell of adjacent frequency.

Step 400: each Microcell performs RSRP and measures.

Assume that the RSRP of remaining 5 adjacent Microcell can be measured in each Microcell, obtain owing to measuring RSRP fluctuation relatively big, and the position of Microcell is the most fixing, accordingly, it would be desirable to equal measurement result Sliding process, each Microcell obtains the final measured value measuring other Microcells arrived.

Step 410: each Microcell performs a bunch division.

Each Microcell, for measuring the final measured value of RSRP of other communities arrived, filters out RSRP Whole measured value, more than bunch first set of cells of the community of division RSRP threshold value, determines respective initial cluster.

Assuming that Microcell 1 is measured more than presetting bunch Microcell dividing RSRP threshold value is 2,3, initially Bunch it is { 1,2,3}；

Assuming that Microcell 2 is measured more than presetting bunch first set of cells dividing RSRP threshold value is 1,3, Initial cluster is { 1,2,3}；

Assume Microcell 3 measure more than preset bunch first set of cells of division RSRP threshold value be 1,2, 4, initial cluster is { 1,2,3,4}；

Assuming that Microcell 4 is measured more than presetting bunch first set of cells dividing RSRP threshold value is 3, Initial cluster is { 3,4}；

Assuming that Microcell 5 is measured more than presetting bunch first set of cells dividing RSRP threshold value is 6, Initial cluster is { 5,6}；

Assuming that Microcell 6 is measured more than presetting bunch first set of cells dividing RSRP threshold value is 5, Initial cluster is { 5,6}.

The initial cluster composition of self is notified the first set of cells by X2 interface by each Microcell, and connects Receive the notification message that the initial cluster of the first community is constituted.

By after interacting between the X2 interface of Microcell, get rid of the Microcell that duplicate packages contains, such as, The initial cluster composition of self is sent to Microcell 2 and Microcell 3 by Microcell 1, and receives Microcell 2 He The initial cluster that Microcell 3 sends is constituted, by interacting between the X2 interface of Microcell, Microcell 1 According to the initial cluster of self, { 1,2,3}, and the first set of cells (Microcell 2 and Microcell 3) return Initial cluster constitute notification message, be respectively 1,2,3} and 1,2,3,4}, and by three collection conjunction also Collection, update composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch of Microcell 1 be 1,2, 3,4}, and determine that the second set of cells in addition to Microcell 1 that the 1st iteration bunch includes is micro- Community 2, Microcell 3 and Microcell 4, continue executing with iterative process.Other communities are also carried out corresponding changing For process.

Herein for convenient explanation, after not completing bunch division, the community in each bunch carries out label again. And owing to number of cells is less, so i.e. can determine that place bunch, Microcell is stable through twice iteration, iteration bunch No longer change.

Particularly as follows: the iteration bunch of Microcell 1,2,3,4 be 1,2,3,4}, and Microcell 5,6 repeatedly Generation bunch is { 5,6}.

Assume that bunch scale thresholding preset is 3, due to Microcell number in the iteration bunch of Microcell 1,2,3,4 Mesh is both greater than 3, and therefore, Microcell 1,2,3,4 is all designated and can not perform dynamic ascending-descending subframes and heavily join Put.

It is also assumed here that six communities in this network are not the most with frequency or adjacent frequency macrocell.

Step 420: for being able to carry out the Microcell that dynamic ascending-descending subframes reconfigures, calculates up-downgoing real Border resources occupation rate and up-downgoing resources occupation rate based on business demand speed, it is judged that whether Microcell has Up-downgoing business.

Reconfigure owing to Microcell 1,2,3,4 has been identified as performing dynamic ascending-descending subframes, because of This, it is not necessary to calculate up-downgoing real resource occupancy and up-downgoing resource occupation based on business demand speed Rate.

Assume up-downgoing real resource occupancy and the up-downgoing resource based on service rate demand of Microcell 5 Occupancy is 0.02.

Assume that up-downgoing is 0.05 without business decision threshold, owing to up-downgoing real resource in Microcell 5 takies The resources occupation rate that rate and up-downgoing are added up based on service rate demand is respectively less than 0.05.Therefore, Microcell 5 Supreme downlink business, the target ascending-descending subframes of Microcell 5 is configured to sub-frame configuration 0.

Assume that the present sub-frame of Microcell 6 is configured to 1, the up-downgoing actual distribution PRB of average each subframe Number is 50, and the up-downgoing of each subframe in Microcell 6 always can use PRB number to be 100, the actual money of up-downgoing Source occupancy smoothing factor α value is 1, and the active service speed of all carryings of up-downgoing is respectively 5/10Mbps, has two users in Microcell 6, the up-downgoing rate requirement of two users is respectively 1.5/5Mbps, then:

The up-downgoing real resource occupancy of Microcell 6 is: 50/100=0.5；

Up based on service rate demand the resources occupation rate of Microcell 6 is: 50/5* (1.5+1.5)/100=0.3；

Descending based on service rate demand the resources occupation rate of Microcell 6 is: 50/10* (5+5)/100=0.5.

Assume that up-downgoing is 0.05 without business decision threshold, owing to up-downgoing real resource in Microcell 6 takies Rate and resources occupation rate based on service rate demand statistics are above 0.05, therefore, on Microcell 6 has Downlink business.

Step 430: determine the Microcell self with up-downgoing business, calculates the upper and lower of place bunch, Microcell Row resources occupation rate based on business demand speed, and according to the up-downgoing at place bunch, Microcell based on business need The resources occupation rate seeking speed determines that target ascending-descending subframes configures.

Here, in place bunch, Microcell 6, the supreme downlink business in Microcell 5, sub-frame configuration is 0.

Microcell 6 calculates the up-downgoing resources occupation rate based on business demand speed at place bunch, Microcell 6. Owing to place bunch, Microcell 6 includes Microcell 5 and Microcell 6, and the supreme downlink business in Microcell 5, because of This is when calculating the up-downgoing resources occupation rate based on business demand speed at place bunch, Microcell 6, Microcell The Microcell sum in 6 places bunch with up-downgoing business is 1, then the up-downgoing base at place bunch, Microcell 6 Based on business demand speed equal to the up-downgoing of Microcell self in the resources occupation rate of business demand speed Resources occupation rate.

Assuming that uplink and downlink load the first thresholding is 0.7, downlink load the second thresholding is 0.2, therefore, small District 6 ascending-descending subframes configuration byDetermine, i.e. 0.3/0.5, select ascending-descending subframes ratio Example configures as the configuration of target ascending-descending subframes closest to the ascending-descending subframes of 0.3/0.5.

Assume not consider special subframe, the ascending-descending subframes ratio of sub-frame configuration 0～6 be respectively 3,1,1/3, 1/2,2/7,1/8,5/3}, refering to shown in Fig. 1, the ascending-descending subframes closest to 0.3/0.5 is configured to up and down Row sub-frame configuration 1/2, then the target ascending-descending subframes of Microcell 6 is configured to sub-frame configuration 3.

Owing to the former ascending-descending subframes of Microcell 6 is configured to 1, current goal ascending-descending subframes is configured to 3, Therefore, the sub-frame configuration of Microcell 6 is changed to 3, thus realizes dynamic ascending-descending subframes and reconfigure.

Refering to shown in Fig. 5, the device that the dynamic ascending-descending subframes in Microcell based on X2 interface reconfigures, bag Include:

Judging unit 50, for when arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, according to self The mark at place bunch determines that self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate the up-downgoing of self Real resource occupancy and up-downgoing resources occupation rate based on business demand speed, and sentence based on result of calculation Whether disconnected self have up-downgoing business；

Computing unit 51, for if it is determined that self have up-downgoing business, then calculates the upper of place bunch, Microcell Descending resources occupation rate based on business demand speed；

Dispensing unit 52, for accounting for according to the up-downgoing resource based on business demand speed at place bunch, Microcell By rate, determine the target ascending-descending subframes configuration of Microcell.

It is also preferred that the left determining that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes heavily joins Time before putting, farther include:

Processing unit 53, is used for determining in self place bunch and does not comprise with frequency or adjacent frequency macrocell and bunch small scale In equal to bunch scale thresholding preset, it is determined that Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and The mark at place bunch, Microcell is marked.

It is also preferred that the left determine self place bunch, processing unit 53 is further used for:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Perform to measure for the RSRP of each community, and it is final at the RSRP in i-th cycle to record each community Measured value；

Based on each community at the final measured value of RSRP in i-th cycle, filter out in the i-th cycle The final measured value of RSRP is more than bunch dividing first set of cells of RSRP threshold value, and by Microcell and the One set of cells collectively forms initial cluster C of Microcell₀；

By initial cluster C of self₀Composition notify the first set of cells by X2 interface, and it is little to receive first The initial cluster that district's set returns constitutes notification message；

Initial cluster C according to self₀Constitute and first set of cells return initial cluster constitute notification message, Update composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch C of Microcell₀ ¹', and determine 1st iteration bunch C₀ ¹The second set of cells in addition to Microcell included；

By the 1st iteration bunch C₀ ¹Notify the second set of cells by X2 interface, and receive the second cell set Close the 1st the iteration bunch notification message returned；

The 1st the iteration bunch C according to self₀ ¹The 1st the iteration bunch notice returned with the second set of cells disappears Breath, updates composition and bunch scale at self place bunch, is designated as the 2nd iteration bunch C₀ ², and determine the 2nd Secondary iteration bunch C₀ ²The 3rd set of cells in addition to Microcell included, and continue executing with iterative operation；

Wherein, after the t time iteration, t > 1, calculate bunch scale and 1 iteration of t of the t time iteration bunch Bunch the difference of bunch scale, and calculate the ratio of difference and bunch scale of 1 iteration bunch of t, and judge ratio Whether value is less than bunch scale change thresholding preset；If, it is determined that self place bunch is the t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch is the s time iteration Bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

It is also preferred that the left when arriving the i-th measured for Reference Signal Received Power RSRP that Microcell is preset During the cycle, perform to measure for the RSRP of each community, and record each community RSRP in the i-th cycle During final measured value, processing unit 53 is further used for:

When a Microcell start being detected, trigger RSRP aperiodic for a Microcell and measure, and remember Record the final measured value of RSRP of a Microcell.

It is also preferred that the left when arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, root Determine that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate from The up-downgoing real resource occupancy in i-th cycle and up-downgoing resource occupation based on business demand speed Rate, and when judging whether self has up-downgoing business based on result of calculation, it is judged that unit 50 is used for:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures；

Based on Microcell up-downgoing of average each subframe within the i-th cycle actual distribution Physical Resource Block PRB number, the up-downgoing of each subframe in Microcell always can use PRB number, and the up-downgoing in the i-th-1 cycle Real resource occupancy, calculates the Microcell up-downgoing real resource occupancy in the i-th cycle；

Up-downgoing time based on Microcell average each subframe within i-th cycle distribution PRB number, small The up-downgoing of each subframe in district always can use PRB number, the active service of all carryings of up-downgoing in the i-th cycle Speed, and the up-downgoing rate requirement of each carrying, calculate the Microcell up-downgoing base in the i-th cycle Resources occupation rate in business demand speed；

Based on Microcell in the up-downgoing real resource occupancy in i-th cycle and Microcell in the i-th cycle Up-downgoing resources occupation rate based on business demand speed, if Microcell is real in the up-downgoing in i-th cycle Border resources occupation rate is respectively less than the up-downgoing preset and judges thresholding without business, and Microcell is in the i-th cycle Up-downgoing resources occupation rate based on business demand speed is also respectively less than the up-downgoing preset and judges door without business Limit, it is determined that self do not have up-downgoing business, otherwise determine that self there is up-downgoing business.

It is also preferred that the left based on Microcell in the up-downgoing real resource occupancy in i-th cycle and Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if upper in the i-th cycle of Microcell Descending real resource occupancy is respectively less than the up-downgoing preset and judges thresholding without business, and Microcell is in i-th The up-downgoing in cycle resources occupation rate based on business demand speed is also respectively less than the up-downgoing preset without business Judging thresholding, it is determined that after self not having up-downgoing business, dispensing unit 52 is further used for:

For a Microcell not having up-downgoing business, determine from target up-downgoing in the i-th cycle Frame is configured to sub-frame configuration 0.

It is also preferred that the left if it is determined that self have up-downgoing business, then calculate the up-downgoing at place bunch, Microcell based on During the resources occupation rate of business demand speed, computing unit 51 is used for:

If it is determined that self have up-downgoing business, then based on place bunch, Microcell has the micro-of up-downgoing business Community sum, and there is the up-downgoing in the i-th cycle of the Microcell of up-downgoing business based on business demand The resources occupation rate of speed, calculates the up-downgoing resource occupation based on business demand speed at place bunch, Microcell Rate.

It is also preferred that the left the up-downgoing in the i-th cycle according to place bunch, Microcell is based on business demand speed Resources occupation rate, in conjunction with uplink load the first thresholding preset, default downlink load the first thresholding and pre- If downlink load the second thresholding, determine Microcell the i-th cycle target ascending-descending subframes configure, join Put unit 52 for:

If descending based on business demand speed the resources occupation rate that place bunch, Microcell is in the i-th cycle is less than Equal to downlink load the second thresholding preset, it is determined that the target ascending-descending subframes in the i-th cycle is configured to Sub-frame configuration 0；

If up based on business demand speed the resources occupation rate that place bunch, Microcell is in the i-th cycle is more than Preset uplink load the first thresholding and place bunch, Microcell the i-th cycle descending based on business demand speed The resources occupation rate of rate is more than downlink load the first thresholding preset, it is determined that in the target in i-th cycle The sub-frame configuration in descending sub frame configuration the i-th-1 cycle of maintenance；

Otherwise, according to up based on business demand speed resources occupation rate and the i-th week in i-th cycle The ratio of descending based on business demand speed the resources occupation rate of phase, determines up-downgoing immediate with ratio Subframe ratio configures as target ascending-descending subframes.

Refering to shown in Fig. 6, the device that the dynamic ascending-descending subframes in Microcell based on X2 interface reconfigures includes Processor 600, transceiver 610 and memorizer 620, wherein:

Processor 600, for reading the program in memorizer 620, performs following process: preset when arriving Dynamic ascending-descending subframes when reconfiguring the cycle, determine according to the mark at self place bunch and self be able to carry out moving State ascending-descending subframes reconfigures, then calculate self up-downgoing real resource occupancy and up-downgoing based on business The resources occupation rate of demand rate, and judge whether self has up-downgoing business based on result of calculation；If really Fixed self have up-downgoing business, then calculate the up-downgoing money based on business demand speed at place bunch, Microcell Source occupancy；Up-downgoing according to place bunch, Microcell resources occupation rate based on business demand speed, determines The target ascending-descending subframes configuration of Microcell.

Transceiver 610, for receiving and sending data under the control of processor 600.

It is also preferred that the left determining that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes heavily joins Time before putting, processor 600 is further used for:

Determine self place bunch does not comprise with frequency or adjacent frequency macrocell and bunch scale less than or equal to preset bunch Scale thresholding, it is determined that Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and to place bunch, Microcell Mark be marked.

It is also preferred that the left determine self place bunch, processor 600 is further used for:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Perform to measure for the RSRP of each community, and it is final at the RSRP in i-th cycle to record each community Measured value；

Based on each community at the final measured value of RSRP in i-th cycle, filter out in the i-th cycle The final measured value of RSRP is more than bunch dividing first set of cells of RSRP threshold value, and by Microcell and the One set of cells collectively forms initial cluster C of Microcell₀；

By initial cluster C of self₀Composition notify the first set of cells by X2 interface, and it is little to receive first The initial cluster that district's set returns constitutes notification message；

Initial cluster C according to self₀Constitute and first set of cells return initial cluster constitute notification message, Update composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch C of Microcell₀ ¹', and determine 1st iteration bunch C₀ ¹The second set of cells in addition to Microcell included；

By the 1st iteration bunch C₀ ¹Notify the second set of cells by X2 interface, and receive the second cell set Close the 1st the iteration bunch notification message returned；

The 1st the iteration bunch C according to self₀ ¹The 1st the iteration bunch notice returned with the second set of cells disappears Breath, updates composition and bunch scale at self place bunch, is designated as the 2nd iteration bunch C₀ ², and determine the 2nd Secondary iteration bunch C₀ ²The 3rd set of cells in addition to Microcell included, and continue executing with iterative operation；

Wherein, after the t time iteration, t > 1, calculate bunch scale and 1 iteration of t of the t time iteration bunch Bunch the difference of bunch scale, and calculate the ratio of difference and bunch scale of 1 iteration bunch of t, and judge ratio Whether value is less than bunch scale change thresholding preset；If, it is determined that self place bunch is the t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch is the s time iteration Bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

It is also preferred that the left when arriving the i-th measured for Reference Signal Received Power RSRP that Microcell is preset During the cycle, perform to measure for the RSRP of each community, and record each community RSRP in the i-th cycle During final measured value, processor 600 is further used for:

When a Microcell start being detected, trigger RSRP aperiodic for a Microcell and measure, and remember Record the final measured value of RSRP of a Microcell.

It is also preferred that the left when arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, root Determine that according to the mark at self place bunch self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate from The up-downgoing real resource occupancy in i-th cycle and up-downgoing resource occupation based on business demand speed Rate, and when judging whether self has up-downgoing business based on result of calculation, processor 600 is used for:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures；

Based on Microcell up-downgoing of average each subframe within the i-th cycle actual distribution Physical Resource Block PRB number, the up-downgoing of each subframe in Microcell always can use PRB number, and the up-downgoing in the i-th-1 cycle Real resource occupancy, calculates the Microcell up-downgoing real resource occupancy in the i-th cycle；

Up-downgoing time based on Microcell average each subframe within i-th cycle distribution PRB number, small The up-downgoing of each subframe in district always can use PRB number, the active service of all carryings of up-downgoing in the i-th cycle Speed, and the up-downgoing rate requirement of each carrying, calculate the Microcell up-downgoing base in the i-th cycle Resources occupation rate in business demand speed；

Based on Microcell in the up-downgoing real resource occupancy in i-th cycle and Microcell in the i-th cycle Up-downgoing resources occupation rate based on business demand speed, if Microcell is real in the up-downgoing in i-th cycle Border resources occupation rate is respectively less than the up-downgoing preset and judges thresholding without business, and Microcell is in the i-th cycle Up-downgoing resources occupation rate based on business demand speed is also respectively less than the up-downgoing preset and judges door without business Limit, it is determined that self do not have up-downgoing business, otherwise determine that self there is up-downgoing business.

It is also preferred that the left based on Microcell in the up-downgoing real resource occupancy in i-th cycle and Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if upper in the i-th cycle of Microcell Descending real resource occupancy is respectively less than the up-downgoing preset and judges thresholding without business, and Microcell is in i-th The up-downgoing in cycle resources occupation rate based on business demand speed is also respectively less than the up-downgoing preset without business Judging thresholding, it is determined that after self not having up-downgoing business, processor 600 is further used for:

For a Microcell not having up-downgoing business, determine from target up-downgoing in the i-th cycle Frame is configured to sub-frame configuration 0.

It is also preferred that the left if it is determined that self have up-downgoing business, then calculate the up-downgoing at place bunch, Microcell based on During the resources occupation rate of business demand speed, processor 600 is used for:

If it is determined that self have up-downgoing business, then based on place bunch, Microcell has the micro-of up-downgoing business Community sum, and there is the up-downgoing in the i-th cycle of the Microcell of up-downgoing business based on business demand The resources occupation rate of speed, calculates the up-downgoing resource occupation based on business demand speed at place bunch, Microcell Rate.

It is also preferred that the left the up-downgoing in the i-th cycle according to place bunch, Microcell is based on business demand speed Resources occupation rate, in conjunction with uplink load the first thresholding preset, default downlink load the first thresholding and pre- If downlink load the second thresholding, determine Microcell the i-th cycle target ascending-descending subframes configure, place Reason device 600 is used for:

If descending based on business demand speed the resources occupation rate that place bunch, Microcell is in the i-th cycle is less than Equal to downlink load the second thresholding preset, it is determined that the target ascending-descending subframes in the i-th cycle is configured to Sub-frame configuration 0；

If up based on business demand speed the resources occupation rate that place bunch, Microcell is in the i-th cycle is more than Preset uplink load the first thresholding and place bunch, Microcell the i-th cycle descending based on business demand speed The resources occupation rate of rate is more than downlink load the first thresholding preset, it is determined that in the target in i-th cycle The sub-frame configuration in descending sub frame configuration the i-th-1 cycle of maintenance；

Otherwise, according to up based on business demand speed resources occupation rate and the i-th week in i-th cycle The ratio of descending based on business demand speed the resources occupation rate of phase, determines up-downgoing immediate with ratio Subframe ratio configures as target ascending-descending subframes.

Wherein, bus architecture can include bus and the bridge of any number of interconnection, specifically by processor 600 The various electrical chains of the memorizer that the one or more processors represented and memorizer represent are connected together.Bus Framework can also be by other electrical chains various of such as ancillary equipment, manostat and management circuit or the like Being connected together, these are all to it is known in the art, therefore, are the most no longer described further it. EBI provides interface.Transceiver 610 can be multiple element, i.e. includes transmitter and transceiver, carries For the unit for communicating with other devices various over a transmission medium.Total coil holder is responsible for by processor 600 Structure and common process, memorizer 620 can store the data that processor is used when performing operation.

In sum, the ascending-descending subframes configuration of Microcell dynamically can adjust along with the change of business, and then System spectrum service efficiency can be improved, meanwhile, reduce system energy consumption.

The dynamic ascending-descending subframes realized based on X2 interface reconfigures relatively based on Centralized Controller realization dynamic Ascending-descending subframes reconfigures, and the information that can carry out in Microcell bunch is mutual, and Microcell each determines that self is Good ascending-descending subframes configuration, is greatly enhanced the efficiency that ascending-descending subframes reconfigures；Meanwhile, each Microcell Can according to each residing scene setting different bunch divide RSRP thresholding, dynamic ascending-descending subframes is heavily joined Put the parameters such as cycle, make dynamic ascending-descending subframes reconfigure the most controlled, and configuration is the most accurate.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory, CD-ROM, optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the embodiment of the present invention The spirit and scope of inventive embodiments.So, if these amendments of the embodiment of the present invention and modification belong to this Within the scope of invention claim and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification Including.

Claims (16)

1. the method that the dynamic ascending-descending subframes in Microcell based on X2 interface reconfigures, it is characterised in that Including:

When arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, if Microcell is according to self place bunch Mark determines that self being able to carry out dynamic ascending-descending subframes reconfigures, then calculate the up-downgoing real resource of self Occupancy and up-downgoing resources occupation rate based on business demand speed, and judge that self is based on result of calculation No have up-downgoing business；

If described Microcell determines self have up-downgoing business, then calculate the upper and lower of place bunch, described Microcell Row resources occupation rate based on business demand speed；

Microcell according to the up-downgoing resources occupation rate based on business demand speed at place bunch, described Microcell, Determine the target ascending-descending subframes configuration of described Microcell.

2. the method for claim 1, it is characterised in that in described Microcell according to self place Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures before, farther include:

Microcell determines that not comprising frequency or adjacent frequency macrocell and bunch scale together in self place bunch is less than or equal to pre- If bunch scale thresholding, it is determined that described Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, and to institute The mark stating place bunch, Microcell is marked.

3. method as claimed in claim 1 or 2, it is characterised in that Microcell determines self place bunch, Including:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Microcell performs to measure for the RSRP of each community, and records each community RSRP in the i-th cycle Final measured value；

Microcell, filters out at the final measured value of RSRP in i-th cycle based on each community described In i cycle, the final measured value of RSRP is more than bunch first set of cells of division RSRP threshold value, and will Described Microcell and described first set of cells collectively form initial cluster C of described Microcell₀；

Microcell is by initial cluster C of self₀Composition notify described first set of cells by X2 interface, and Receive the initial cluster composition notification message that described first set of cells returns；

Microcell is according to initial cluster C of self₀Constitute and described first set of cells return initial cluster structure Become notification message, update composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration of described Microcell Bunch C₀ ^1’, and determine described 1st iteration bunch C₀ ¹In addition to described Microcell second included is little District gathers；

Microcell is by described 1st iteration bunch C₀ ¹Described second set of cells is notified by X2 interface, and Receive the 1st the iteration bunch notification message that described second set of cells returns；

Microcell is according to the 1st the iteration bunch C of self₀ ¹Change for 1st time with what described second set of cells returned Generation bunch notification message, updates composition and bunch scale at self place bunch, is designated as the 2nd iteration bunch C₀ ², with And determine described 2nd iteration bunch C₀ ²The 3rd set of cells in addition to described Microcell included, and Continue executing with iterative operation；

Wherein, after the t time iteration, t > 1, described Microcell calculates bunch scale and of the t time iteration bunch The difference of bunch scale of 1 iteration bunch of t, and calculate bunch rule of described difference and described 1 iteration bunch of t The ratio of mould, and judge that whether described ratio is less than bunch scale change thresholding preset；If, it is determined that from Body place bunch is the t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that Self place bunch is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

4. method as claimed in claim 3, it is characterised in that when arrive that Microcell presets for ginseng When examining the i-th cycle that signal receives power RSRP measurement, Microcell performs the RSRP for each community Measure, and record each community final measured value of RSRP in the i-th cycle, farther include:

When Microcell detects a Microcell start, trigger RSRP aperiodic for a described Microcell Measure, and record the final measured value of RSRP of a described Microcell.

5. the method for claim 1, it is characterised in that when arrive Microcell preset dynamic on During the i-th cycle that descending sub frame reconfigures, if described Microcell determines certainly according to the mark at self place bunch Body is able to carry out dynamic ascending-descending subframes and reconfigures, then calculate from the actual money of up-downgoing in the i-th cycle Source occupancy and up-downgoing resources occupation rate based on business demand speed, and judge self based on result of calculation Whether there is up-downgoing business, including:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, described Microcell Mark according to self place bunch determines that self being able to carry out dynamic ascending-descending subframes reconfigures；

Microcell is based on described Microcell up-downgoing of average each subframe within the i-th cycle actual distribution thing Reason Resource Block PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, and i-th-1 The up-downgoing real resource occupancy in individual cycle, calculates the described Microcell up-downgoing reality in the i-th cycle Resources occupation rate；

The Microcell up-downgoing time based on described Microcell average each subframe within the i-th cycle distributes PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, up-downgoing institute in the i-th cycle There are the active service speed of carrying, and the up-downgoing rate requirement of each carrying, calculate described Microcell and exist The up-downgoing in i-th cycle resources occupation rate based on business demand speed；

Based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if described Microcell is in the i-th cycle Up-downgoing real resource occupancy be respectively less than preset up-downgoing judge thresholding, and described Microcell without business Up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than the up-downgoing preset Judging thresholding without business, the most described Microcell determines self do not have up-downgoing business, otherwise determines and self has Up-downgoing business.

6. method as claimed in claim 5, it is characterised in that based on described Microcell in the i-th cycle Up-downgoing real resource occupancy and described Microcell the i-th cycle up-downgoing based on business demand speed The resources occupation rate of rate, if the up-downgoing real resource occupancy that described Microcell is in the i-th cycle is respectively less than The up-downgoing preset judges thresholding without business, and described Microcell in the up-downgoing in i-th cycle based on business The resources occupation rate of demand rate is also respectively less than the up-downgoing preset and judges thresholding without business, the most described Microcell Determine after self there is no up-downgoing business, farther include:

For a Microcell not having up-downgoing business, described one does not has the Microcell of up-downgoing business to determine certainly Target ascending-descending subframes in the i-th cycle is configured to sub-frame configuration 0.

7. the method as described in any one of claim 1-6, it is characterised in that if described Microcell determines Self have up-downgoing business, then the up-downgoing calculating place bunch, described Microcell is based on business demand speed Resources occupation rate, including:

If described Microcell determines self have up-downgoing business, the most described Microcell is based on described Microcell institute Bunch in there is the Microcell sum of up-downgoing business, and described in there is the Microcell of up-downgoing business the The up-downgoing in i cycle resources occupation rate based on business demand speed, calculates place bunch, described Microcell Up-downgoing resources occupation rate based on business demand speed.

8. the method as described in any one of claim 1-7, it is characterised in that Microcell is according to described micro- Up-downgoing in the i-th cycle resources occupation rate based on business demand speed at place bunch, community, in conjunction with pre- If uplink load the first thresholding, default downlink load the first thresholding and default downlink load second Limit, determines that the described Microcell target ascending-descending subframes in the i-th cycle configures, including:

If place bunch, described Microcell is in descending based on business demand speed the resources occupation rate in i-th cycle Less than or equal to downlink load the second thresholding preset, the most described Microcell determines in the target in i-th cycle Descending sub frame is configured to sub-frame configuration 0；

If place bunch, described Microcell is in up based on business demand speed the resources occupation rate in i-th cycle More than descending based on industry in the i-th cycle of uplink load the first thresholding preset and place bunch, described Microcell The resources occupation rate of business demand rate is more than downlink load the first thresholding preset, and the most described Microcell determines The sub-frame configuration in target ascending-descending subframes configuration the i-th-1 cycle of maintenance in i-th cycle；

Otherwise, Microcell is according to up based on business demand speed the resources occupation rate in i-th cycle and the The ratio of descending based on business demand speed the resources occupation rate in i cycle, determines and connects most with described ratio Near ascending-descending subframes ratio configures as target ascending-descending subframes.

9. the device that the dynamic ascending-descending subframes in Microcell based on X2 interface reconfigures, it is characterised in that Including:

Judging unit, for when arriving the dynamic ascending-descending subframes preset and reconfiguring the cycle, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures, then the up-downgoing calculating self is real Border resources occupation rate and up-downgoing resources occupation rate based on business demand speed, and judge based on result of calculation Whether self has up-downgoing business；

Computing unit, for if it is determined that self have up-downgoing business, then calculates place bunch, described Microcell Up-downgoing resources occupation rate based on business demand speed；

Dispensing unit, for the up-downgoing resource based on business demand speed according to place bunch, described Microcell Occupancy, determines the target ascending-descending subframes configuration of described Microcell.

10. device as claimed in claim 9, it is characterised in that true in the mark according to self place bunch When determining self to be able to carry out before dynamic ascending-descending subframes reconfigures, farther include:

Processing unit, is used for determining in self place bunch that not comprising frequency or adjacent frequency macrocell and a bunch scale together is less than Equal to bunch scale thresholding preset, it is determined that described Microcell is able to carry out dynamic ascending-descending subframes and reconfigures, And the mark at place bunch, described Microcell is marked.

11. devices as described in claim 9 or 10, it is characterised in that determine self place bunch, institute State processing unit to be further used for:

When arrive Microcell preset for Reference Signal Received Power RSRP measure the i-th cycle time, Perform to measure for the RSRP of each community, and it is final at the RSRP in i-th cycle to record each community Measured value；

Based on each community described at the final measured value of RSRP in i-th cycle, filter out in i-th week The final measured value of interim RSRP is more than bunch first set of cells dividing RSRP threshold value, and by described micro- Community and described first set of cells collectively form initial cluster C of described Microcell₀；

By initial cluster C of self₀Composition notify described first set of cells by X2 interface, and receive institute State the initial cluster composition notification message that the first set of cells returns；

Initial cluster C according to self₀Constitute and described first set of cells return initial cluster constitute notice Message, updates composition and bunch scale at self place bunch, it is thus achieved that the 1st iteration bunch C of described Microcell₀ ^1’, And determine described 1st iteration bunch C₀ ¹The second set of cells in addition to described Microcell included；

By described 1st iteration bunch C₀ ¹Notify described second set of cells by X2 interface, and receive institute State the 1st the iteration bunch notification message that the second set of cells returns；

The 1st the iteration bunch C according to self₀ ¹The 1st iteration bunch returned with described second set of cells is led to Know message, update composition and bunch scale at self place bunch, be designated as the 2nd iteration bunch C₀ ², and determine Described 2nd iteration bunch C₀ ²The 3rd set of cells in addition to described Microcell included, and continue to hold Row iteration operates；

Wherein, after the t time iteration, t > 1, calculate bunch scale and 1 iteration of t of the t time iteration bunch Bunch the difference of bunch scale, and calculate the ratio of described difference and bunch scale of described 1 iteration bunch of t, And judge that whether described ratio is less than bunch scale change thresholding preset；If, it is determined that self place bunch is The t time iteration bunch C₀ ^t；Otherwise, when arriving the iterations thresholding s preset, it is determined that self place bunch It is the s time iteration bunch C₀ ^s, wherein s > t, s and t is the positive integer more than 1.

12. devices as claimed in claim 11, it is characterised in that when arrive Microcell preset for During the i-th cycle that Reference Signal Received Power RSRP measures, perform to survey for the RSRP of each community Amount, and record each community when the final measured value of RSRP in i-th cycle, described processing unit enters one Step is used for:

When a Microcell start being detected, trigger RSRP aperiodic for a described Microcell and measure, And record the final measured value of RSRP of a described Microcell.

13. devices as claimed in claim 9, it is characterised in that when arrive Microcell preset dynamic on During the i-th cycle that descending sub frame reconfigures, determine according to the mark at self place bunch and self be able to carry out moving State ascending-descending subframes reconfigures, then calculate from the up-downgoing real resource occupancy in i-th cycle and upper Descending resources occupation rate based on business demand speed, and judge whether self has up and down based on result of calculation During industry business, described judging unit is used for:

When arriving the i-th cycle that the dynamic ascending-descending subframes preset Microcell reconfigures, according to self institute Bunch mark determine that self being able to carry out dynamic ascending-descending subframes reconfigures；

Based on described Microcell up-downgoing of average each subframe within the i-th cycle actual distribution physical resource Block PRB number, the up-downgoing of each subframe in described Microcell always can use PRB number, and the i-th-1 cycle Up-downgoing real resource occupancy, calculate the described Microcell up-downgoing real resource in the i-th cycle and account for By rate；

Up-downgoing time based on described Microcell average each subframe within i-th cycle distribution PRB number, The up-downgoing of each subframe in described Microcell always can use PRB number, all carryings of up-downgoing in the i-th cycle Active service speed, and the up-downgoing rate requirement of each carrying, calculate described Microcell in i-th week The up-downgoing of phase resources occupation rate based on business demand speed；

Based on described Microcell in the up-downgoing real resource occupancy in i-th cycle and described Microcell The up-downgoing in i cycle resources occupation rate based on business demand speed, if described Microcell is in the i-th cycle Up-downgoing real resource occupancy be respectively less than preset up-downgoing judge thresholding, and described Microcell without business Up-downgoing resources occupation rate based on business demand speed in the i-th cycle is also respectively less than the up-downgoing preset Thresholding is judged, it is determined that self do not have up-downgoing business, otherwise determine that self there is up-downgoing business without business.

14. devices as claimed in claim 13, it is characterised in that based on described Microcell in i-th week The up-downgoing real resource occupancy of phase and described Microcell in the up-downgoing in i-th cycle based on business demand The resources occupation rate of speed, if described Microcell is the least in the up-downgoing real resource occupancy in i-th cycle Judge thresholding in default up-downgoing without business, and described Microcell in the up-downgoing in i-th cycle based on industry The resources occupation rate of business demand rate is also respectively less than the up-downgoing preset and judges thresholding without business, it is determined that self After not having up-downgoing business, described dispensing unit is further used for:

For a Microcell not having up-downgoing business, determine from target up-downgoing in the i-th cycle Frame is configured to sub-frame configuration 0.

15. devices as described in any one of claim 9-14, it is characterised in that if it is determined that self has Up-downgoing business, then calculate the up-downgoing resource occupation based on business demand speed at place bunch, described Microcell During rate, described computing unit is used for:

If it is determined that self have up-downgoing business, then based in place bunch, described Microcell, there is up-downgoing business Microcell sum, and described in have the Microcell of up-downgoing business the i-th cycle up-downgoing based on The resources occupation rate of business demand speed, calculates the up-downgoing at place bunch, described Microcell based on business demand speed The resources occupation rate of rate.

16. devices as described in any one of claim 9-15, it is characterised in that according to described Microcell Up-downgoing in the i-th cycle resources occupation rate based on business demand speed at place bunch, in conjunction with preset Uplink load the first thresholding, default downlink load the first thresholding and default downlink load the second thresholding, Determining that the described Microcell target ascending-descending subframes in the i-th cycle configures, described dispensing unit is used for:

If place bunch, described Microcell is in descending based on business demand speed the resources occupation rate in i-th cycle Less than or equal to downlink load the second thresholding preset, it is determined that the target ascending-descending subframes in the i-th cycle is joined It is set to sub-frame configuration 0；

If place bunch, described Microcell is in up based on business demand speed the resources occupation rate in i-th cycle More than descending based on industry in the i-th cycle of uplink load the first thresholding preset and place bunch, described Microcell The resources occupation rate of business demand rate is more than downlink load the first thresholding preset, it is determined that in the i-th cycle Target ascending-descending subframes configuration the i-th-1 cycle of maintenance sub-frame configuration；

Otherwise, according to up based on business demand speed resources occupation rate and the i-th week in i-th cycle The ratio of descending based on business demand speed the resources occupation rate of phase, determines on immediate with described ratio Descending sub frame ratio configures as target ascending-descending subframes.