CN102045850B - Configuration method and equipment of almost blank subframe - Google Patents
Configuration method and equipment of almost blank subframe Download PDFInfo
- Publication number
- CN102045850B CN102045850B CN201010618558.8A CN201010618558A CN102045850B CN 102045850 B CN102045850 B CN 102045850B CN 201010618558 A CN201010618558 A CN 201010618558A CN 102045850 B CN102045850 B CN 102045850B
- Authority
- CN
- China
- Prior art keywords
- abs
- sfn
- base station
- cycle
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a configuration method and equipment of an almost blank subframe. The method comprises: determining the initial subframe and/or effective time of the almost blank subframe by a base station; configuring the initial subframe and/or effective time of the almost blank subframe to user equipment. The invention solves the problem that the almost blank subframe period can not correspond because a system frame number inversion time point and the start point of the almost blank subframe period can not correspondingly generate a system frame number reserve tail.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of accurate blank subframe ABS collocation method and equipment.
Background technology
For ease of statement, in the application, MUE (grand subscriber equipment) refers to the UE (User Equipment, subscriber equipment) of (ClosedSubscriber Group, the closed user group) ability that there is no CSG completely; Or for certain Femto (femtocell base station), be non-member's UE, the CSG ID of this Femto (closed user group sign) is not in the CSG of UE white list;
Femto: the low-power Home eNodeB that only has member UE to access;
Macro: macro base station;
PUE: access pico (Pico cell formula base station), and the UE working under pico.
Fig. 1 is the covering cavity schematic diagram that MUE enters Femto, for the situation of closed mode Home eNodeB, as shown in Figure 1, UE1 belongs to macro macro base station, femto only can authorization of service CSG user, because UE2 is CSG user, so can authenticate access to family base station.When UE1 is positioned at the coverage of femto, because UE1 is different from UE2, the CSG user's (UE1 is MUE) who authorizes, even femto signal strength signal intensity far away higher than the signal strength signal intensity of macro station, UE1 also cannot be switched to femto and will be subject to the strong jamming from femto.So just likely cause the non-constant of channel condition of user UE1, produce call drop, or even cannot work.This is also referred to as to have entered covering cavity.In existing LTE (LongTerm Evolution, Long Term Evolution) agreement, can use ABS (almost Blank Subframe, accurate blank subframe) time domain subframe to evade scheme and solve the descending interference problem in above-mentioned situation.
ABS solution is carried out to brief introduction below.
Be directed to the covering problem that the MUE in Fig. 1 may meet with, a kind of possible time domain solution is:
Because femto has strong jamming to macro base station, can use ABS subframe to evade at femto, by network side, between macro and femto, coordinate sub-frame allocation, and at mutual good rear notice UE.When non-member's MUE is subject to the strong jamming of femto and cannot work time, applies this ABS subframe and evade configuration, only in the ABS subframe of network notice, measure and/or transfer of data.Fig. 2 is that ABS is used schematic diagram, as shown in the figure, because femto base station stops the scheduling of data field in ABS subframe, only send CRS (Cell-specific reference signals, the exclusive pilot signal in community) signal, can not produce strong jamming to MUE, and MUE can normally measure original Serving cell (serving cell, be macro macro base station), and maintain with the normal of former Serving cell and be connected.
Fig. 3 is the ABS schematic diagram that UE is used in femto coverage, as shown in the figure, on femto, there are three ABS subframes, the position of these subframes is got well alternately by network side and is notified UE, when non-member UE falls into after femto coverage, only in ABS subframe, accept to dispatch/measure, the strong jamming that can more effectively avoid femto to bring.
The ABS signal that has represented in pico coverage in figure simultaneously or measured pico within the scope of the macro close with pico: because macro base station can produce strong jamming to pico, so no matter UE is in pico base station or at macro base station, as long as be subject to the interference of macro, just can use the ABS of the upper regulation of macro to carry out subframe and evade and solving.
This kind of subframe evaded scheme and has been in harmonious proportion MUE and conflicts with the interference between macro with femto base station, PUE, makes UE be able to normally work originally having in strongly disturbing situation.But its deficiency is:
Existing scheme may cause the ABS cycle not corresponding.
Summary of the invention
Technical problem solved by the invention is to provide a kind of ABS collocation method and equipment, in order to solve SFN reversing time point and ABS cycle starting point, can not corresponding generation SFN stays tail and the not corresponding problem of ABS cycle that causes.
A kind of ABS collocation method is provided in the embodiment of the present invention, has comprised the steps:
The initial subframe of abs mode and/or entry-into-force time are determined in base station;
The initial subframe of ABS and/or entry-into-force time are configured to UE.
A kind of base station is provided in the embodiment of the present invention, has comprised:
Determination module, for determining the initial subframe of ABS and/or entry-into-force time;
Configuration module, for configuring the initial subframe of ABS and/or entry-into-force time to UE.
A kind of wireless communication process method is provided in the embodiment of the present invention, has comprised the steps:
UE receives base station and configures the initial subframe of ABS and/or the entry-into-force time to UE;
UE configures to the initial subframe of ABS of UE according to base station and/or the entry-into-force time measures and/or transfer of data.
A kind of subscriber equipment is provided in the embodiment of the present invention, has comprised:
Receiver module, configures the initial subframe of ABS and/or the entry-into-force time to UE for receiving base station;
Processing module, for configuring to the initial subframe of ABS of UE and/or the entry-into-force time measures and/or transfer of data according to base station.
Beneficial effect of the present invention is as follows:
In the technical scheme providing in the embodiment of the present invention, base station configures the initial subframe of ABS and/or entry-into-force time to UE.Thereby solved when UE calculates concrete ABS cycle starting point the problem producing ambiguity with error, subframe position is evaded in the interference of having avoided UE to understand and network is intended to inconsistent problem.
Accompanying drawing explanation
Fig. 1 is the covering cavity schematic diagram that in background technology, MUE enters Femto;
Fig. 2 is that in background technology, ABS is used schematic diagram;
Fig. 3 is the ABS schematic diagram that in background technology, UE is used in femto coverage;
Fig. 4 is tailing phenomenon principle schematic in the embodiment of the present invention;
Fig. 5 is ABS collocation method implementing procedure schematic diagram in the embodiment of the present invention;
Fig. 6 is unified ABS frame number principle schematic in the embodiment of the present invention;
Fig. 7 is the SFN reversion schematic diagram in FDD 40ms cycle in the embodiment of the present invention;
Fig. 8 is the SFN reversion schematic diagram in the 60/70ms cycle of TDD in the embodiment of the present invention;
Fig. 9 is the schematic diagram of estimating of frame number of coming into force in the embodiment of the present invention;
Figure 10 is the ABS schematic diagram after SFN difference is processed in the embodiment of the present invention;
Figure 11 is wireless communication process method implementing procedure schematic diagram in the embodiment of the present invention;
Figure 12 is architecture of base station schematic diagram in the embodiment of the present invention;
Figure 13 is user device architecture schematic diagram in the embodiment of the present invention.
Embodiment
Inventor notices in invention process:
Along with the requirement of growing data rate and business load, traditional covers and provides the method for access can not satisfy the demands with macro base station individual layer.Adopt layered coverage, at hot zones or some lower powered base stations of indoor deployment (Home eNodeB/Pico/Femto/Relay, home evolved base station/Pico cell formula base station/femtocell base station/midsequent base station), can be good at addressing this is that.This lower powered base station is a kind of base station equipment being applied under family's indoor environment, working environment or the little overlay environment of other focus, can make operator that high data rate, attractive business are more cheaply provided more.But wherein there is certain restriction femto base station to the Member Users of access, non-Member Users can not access, if non-Member Users enters the coverage of this base station, need to use interference to evade subframe ABS subframe bypassing method and continue to stay the base station that can access, otherwise can, because low power base station signal is compared with entering and cover cavity (coverage hole) by force, cause working.If wherein pico base station is in frequently with macro macro base station, also may produce strong jamming and cause working, need equally ABS subframe Hedging mechanism to solve interference problem.
And just because of the laying of above-mentioned multiple heterogeneous network node, or in network design, avoiding the needs of blind area, UE may measure a plurality of cell signals in same place.In order to reduce network as far as possible, to UE, send the size of ABS configuration signal, and make UE measure multi-cell signals with unified ABS, can require to disturb with the ABS configuration of interfered cell (interfered cell may have a plurality of) to be consistent (keeping synchronizeing).In existing protocol, stipulated to use the ABS cycle between interface connection transmission different base station to configure:
-FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) is 40ms;
-TDD (Time Division Duplex, time division duplex), according to different TDD configuration (configuration), may be set to 20ms/60ms/70ms.
To the tailing phenomenon producing in scheme in prior art, resolve as follows below:
(1) situation of SFN (system frame number, System Frame Number) frame number synchronization between base station:
For the 40ms of FDD and the 20ms ABS cycle of TDD, configure, owing to being divided exactly by maximum wireless frame number 1024 completely, if the ABS cycle starts to calculate from SFN=0, during SFN reversion, an ABS cycle just in time finishes, and the next ABS cycle still starts to calculate from SFN=0;
The 60ms/70ms ABS cycle for TDD configures, and owing to being divided exactly by maximum wireless frame number 1024, if the ABS cycle starts to calculate from SFN=0, SFN will leave the tail that stays of 4/2 radio frames during reversion.
(2) the nonsynchronous situation of SFN frame number between base station:
Because SFN frame number between heterogeneous network base station may be asynchronous, if the difference of frame number can not be divided exactly by the ABS cycle between two base stations, the radio frames of SFN=0 may not be the start frame in ABS cycle, even the 20ms ABS cycle of the 40ms of FDD and TDD configures so, during SFN reversion, also can in the end produce tailing phenomenon.
Fig. 4 is tailing phenomenon principle schematic, such as, during FDD 40ms configuration, the situation of ABS original position modABS cycle=2, finally stays tail as shown in Figure 4 generation.
Visible, because the SFN between the base station of FDD and TDD may exist difference, in SFN reversion, may there is the tailing phenomenon that can not be divided exactly by ABS so;
Due to TDD wherein two ABS configuration cycles be respectively 60ms and 70ms, even the tailing phenomenon when cycle from SFN=0, also there will be SFN reversion.
In above-mentioned two situations, if only the mutual ABS cycle configures between network, and network only sends this ABS cycle to UE and configures, UE will produce ambiguity and error while calculating concrete ABS cycle starting point, and the inconsistent of subframe position and network intention evaded in this interference that also can cause UE to understand.
Given this, the embodiment of the present invention will propose a plan into: network side mutual/the absolute frame number of indication ABS configuration, and be handed down to UE, and the ABS cycle across the UE behavior of SFN rollback point, in order to solve SFN reversing time point and ABS cycle starting point, can not corresponding generation SFN stay tail and the not corresponding problem of ABS cycle that causes.Concrete, scheme can be: ABS subframe is arranged according to time sequencing, even if SFN reverses, also needs to join end to end between ABS subframe, the ABS cycle exists across SFN rollback point.Mutual between base station/indication entry-into-force time/frame number information, and by this unified time/frame number information notice UE.This entry-into-force time/frame number is mutual/and indication need to be when SFN difference be determined/after determining, carry out, or ABSpattern carries out after changing.If SFN frame number, in synchronization among base stations, only carries out after ABS pattern changes.Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Fig. 5 is ABS collocation method implementing procedure schematic diagram, and as shown in the figure, in configuration, ABS can comprise the steps:
The initial subframe of ABS and/or entry-into-force time are determined in step 501, base station;
Step 502, the initial subframe of ABS and/or entry-into-force time are configured to UE.
In enforcement, the entry-into-force time can be absolute time, can be also the system frame number SFN of certain base station/community.
In enforcement, can further include:
Unify the initial subframe of ABS and/or entry-into-force time with other base stations;
The initial subframe of ABS after reunification and/or entry-into-force time are configured to UE.
In enforcement, can be after determining the SFN difference of this base station and other base stations, or after ABS pattern change, the ABS frame number coming into force with other base station unifications, wherein, SFN difference is for making this base station synchronize with the UE measurement of other base station configurations and the ABS of network scheduling.
In enforcement, base station can be according to the ABS of SFN difference and ABS cycle, the measurement of other base stations ABS initial frame number configuration UE and network scheduling so that this base station and other base stations ABS configuration synchronization.
Concrete, the conversion of this SFN deviation can be carried out in any side that has deviation base station (obtain the base station at deviation UE place, or the measured base station of this UE), the mistake of avoiding both sides all to convert and cause.
For the processing of SFN difference, its object is to take into full account the impact of SFN difference, the ABS cycle of aliging between configurating base station.With this, guarantee that periodic ABS sub-frame configuration can be because of No. SFN not inconsistent and can not be synchronously corresponding, strengthened accuracy corresponding to ABS subframe time domain that different base station is used.Below also can be to how treatment S FN difference describes.
In enforcement, when the ABS cycle, configure can not be divided exactly by 1024 time, the tail that stays of SFN is counted to the next ABS cycle.
In enforcement, can further include:
Base station during the cycle, redefines the initial frame number in ABS cycle at configuration ABS after SFN reversion.
The enforcement of the ABS frame number 1, coming into force with other base station unifications below describes.
Between base station, can unify the information of frame number that comes into force by mode mutual or indication, and notify UE by this unified frame number information.
Fig. 6, for unified ABS frame number principle schematic, as shown in the figure, supposes that Macro (interfered cell) and pico (interfered cell) frame number are identical, and Macro has configured the pattern of ABS, and comes into effect while being arranged on SFN=N1; :
Macro indicates this information of N1 to Pico, and Pico tells UE by N1 information;
Pico starts scheduling according to the position of N1, and the measurement of UE etc. also starts according to N1 position, is sustained, until receive that network changes/delete the signaling of this configuration.
Use which, even can not be divided exactly and cause the uncertain TDD60ms/70ms ABS cycle of ABS original position to configure by 1024, also can guarantee interfered cell, interfered cell, and the consistency used in the ABS cycle of UE.
Above-mentioned scene is also applicable to femto (interfered cell) and macro (interfered cell).When not identical with interfered cell System Frame Number when interfered cell, only need mutual/indication SFN deviation, then to UE, configure correct minizone and keep the corresponding frame number that comes into force.
2, base station is configured to putting in order of ABS in chronological order below, and after configuration, at least exist an ABS who has comprised SFN rollback point during the cycle, the result of SFN reversion scene describes.
Fig. 7 is the SFN reversion schematic diagram in FDD 40ms cycle, and the SFN reversion schematic diagram in the 60/70ms cycle that Fig. 8 is TDD, has:
UE receives coming into force after frame number of network transmission, opens ABS measure in the moment of the frame number indication that comes into force, and this is the start frame in first ABS cycle constantly.When reversion occurs SFN, the ABS cycle can exist across SFN rollback point, i.e. front M the radio frames that tail and next SFN cycle start of staying before SFN reversion forms a complete ABS cycle, wherein, and M=ABS cycle radio frames-Liu tail radio frames.
For FDD 40ms cycle and TDD 20ms cycle, because the ABS cycle can be divided exactly by 1024, so in each SFN cycle, ABS cycle original position is all fixed, as shown in Figure 7;
And configure for the 60/70ms cycle of TDD, because the ABS cycle can not be divided exactly by 1024, in the ABS in each SFN cycle cycle original position, change, as shown in Figure 8.
3, below the execution mode of estimating of the frame number that comes into force is described.
Fig. 9 is the schematic diagram of estimating of frame number of coming into force, as shown in the figure, generally, come into force frame number this SFN in the cycle effectively because may stay tail to produce, so be not suitable for all SFN cycles.Because data are eated dishes without rice or wine, transmission may produce time delay, and the frame number that comes into force of general networking configuration can be larger than the System Frame Number of delivery time.Such as:
Suppose that network sends the frame number that comes into force to UE when SFN=10, frame number=the 10+N that comes into force can be set, the time delay N > discreet value of propagation delay time+the require ABS cycle needed time loss of aliging of eating dishes without rice or wine, the frame number that comes into force always equals the start frame in certain ABS cycle.
Especially, if base station sends the ABS time point of the frame number end in the SFN cycle of coming into force to UE, the beginning that frame number may be in the next SFN cycle that comes into force, sends the frame number > frame number that comes into force, and sends frame number+N-1024=frame number that comes into force.
4, below to the frame number that comes into force mutual/the definite of indicated condition describe.Also, after determining the SFN difference of this base station and other base stations, or after ABS pattern change, the ABS frame number coming into force with other base station unifications.
This frame number that comes into force is mutual/and indication need to be when SFN difference be determined/after determining, carry out, or ABSpattern carries out after changing.If SFN frame number, in synchronization among base stations, only carries out after ABS pattern changes.
This is because ABS pattern can be changed according to number of users and throughput, ABSpattern after changing needs at network side and UE side, to carry out alternately/indicate in time, upgrade the scheduling behavior of network side and the measurement behavior of UE side, so when ABS pattern changes, need to send in time the frame number that comes into force to UE, upgrade ABS pattern and arrange.
If the SFN between base station is asynchronous, also need the SFN difference between network interaction/indication base station, Yi Bian reach, disturb configure with disturbed side ABS consistent, guarantee that network side scheduling and UE are used ABS to carry out normally carrying out of nearby region measurement.
5, to carrying out the enforcement of SFN difference calculating, describe below.
If SFN frame number does not line up between base station:
After SFN difference between the acquisition of-interfered cell and interfered cell, may this difference not sent to interfered cell (not producing mutual signaling), only calculating this cell scheduling and issuing ABS while configuring measuring period, consider the impact of SFN difference, the ABS initial frame number of the ABS cycle initial frame number conversion cost community that interfered cell is sent.
-or, after SFN difference between interfered cell acquisition and interfered cell, by interfered cell, consider that SFN difference affects, the ABS initial frame number that is converted into interfered cell sends to interfered cell again, can be directly used in scheduling and issue ABS to configure to UE when interfered cell is received this initial frame number.
Adopt one of above-mentioned two kinds of modes, in a side of interfered cell/interfered cell, carry out difference conversion, avoided after the mutual SFN difference of interference side and disturbed top-cross, both sides carry out the double counting mistake that difference converts and brings.
6,, below to configuring when the ABS cycle can not be divided exactly by 1024 time, the enforcement that can redefine the initial frame number in ABS cycle after SFN reversion describes.
Because the TDD 60ms/70ms ABS cycle configures and can not be divided exactly by 1024, so at each SFN in the cycle, corresponding start frame is fixing.Base station gets the ABS cycle and configures, initial frame number, and between possible base station after SFN difference, calculate the ABS cycle original position of this community, for dispatching and be handed down to UE for measuring.After SFN upset, according to the setting in ABS cycle (whether corresponding start frame is fixing), the original position in ABS cycle in this SFN cycle need to be recalculated in base station, for scheduling, and UE also will be consistent with network side, calculate the ABS start frame position of new SFN in the cycle, for measuring.
7, below the processing of SFN difference is described.
First, base station obtains the Serving cell of UE and the SFN difference of adjacent cell;
Then base station just can be according to the ABS of the Serving cell of the ABS initial frame number configuration UE of SFN difference and ABS cycle, adjacent cell so that the ABS configuration synchronization of Serving cell and adjacent cell.
Concrete, while obtaining the Serving cell of UE and the SFN difference of adjacent cell in base station, can adopt one of following three kinds of modes:
The message of having carried SFN difference of 1, replying from UE, obtain SFN difference;
2, the message of the SFN that has carried adjacent cell replying from UE, obtain after the SFN of adjacent cell, the SFN by Serving cell calculates SFN difference;
3, from adjacent cell under the mutual information in base station obtain after the SFN of adjacent cell, the SFN by Serving cell calculates SFN difference.
For the 1st, 2 kinds of modes, for obtaining of adjacent cell SFN, due at present without any agreement support SFN between base station mutual/indication, so in the embodiment of the present invention, provide use UE to eat dishes without rice or wine to obtain adjacent area system information, the mode of resolving SFN and reporting.
Concrete, for host system message block and SFN, System Frame Number is comprised of 10bits.SFN host system message block MIB (Master Information Block, Master Information Block) transmission can represent the value of SFN: the most-significant byte of the systemFrameNumber in MIB message (System Frame Number) sign SFN, rear two the obtaining of implicit expression when P-BCH (Physical broadcast channel, Physical Broadcast Channel) decodes of SFN.Because the MIB transmission cycle is 40ms, and within the transmission cycle, the 10ms of take sends 4 identical contents as interval, and these four times transmissions can be identified as respectively the low 2 of SFN according to sending order: 00/01/10/11.
In addition, the object of SON (Self Organising Networks, self-organizing network)-ANR (AutomaticNeighbour Relation, Automatic Neighboring Relation) mechanism is in order to set up incidence relation between LTE community.Complete this function, Serving cell can be passed through RRC (Radio Resource Control, Radio Resource is controlled) message terminal is configured, and makes it report the fixedly information of adjacent area.The base station of Serving cell is received after this reporting information to determine whether added as associated cell, if needed, can be set up X2 interface.UE obtains the fixedly information of adjacent area, need to first read system information MIB and the SIB (System Information Block, system information block) 1 of adjacent area, and resolves parameter wherein, then reports.The parameter that current UE is obtained from the system information of adjacent area comprises: Global Cell ID (global community unique identification), TAC (Tracking Area Code, Tracking Area Code) and available PLMN ID (PLMN sign; PLMN:Public Land Mobile Network, Public Land Mobile Nerwork) etc.Therefore can utilize SON-ANR mechanism to obtain the SFN of adjacent cell.
Also, in the 1st, 2 kinds of modes, can get after the SFN of adjacent cell at UE, the message of having carried SFN difference of replying from UE, obtain SFN difference; Or, the message of the SFN that has carried adjacent cell replying from UE, obtaining after the SFN of adjacent cell, the SFN by Serving cell calculates SFN difference.
For example: when employing eats dishes without rice or wine to obtain the mode of SFN reporting neighboring cell/local area SFN difference, can be as follows:
1, serving BS configuration ANR measures;
2, UE obtains the MIB of community under adjacent base station;
In this step, network side is initiated the SON-ANR process to community under adjacent base station.This process can make UE read the system information of adjacent cell, wherein comprises the MIB message of adjacent cell.UE reads MIB message and resolves, and can therefrom obtain the value of adjacent cell SFN;
3, UE parses adjacent cell SFN and self SFN calculates SFN difference;
In this step, the UE of connected state or Idle state needs to guarantee that the system information of the Serving cell read effectively just can carry out work.So the SFN of Serving cell is known for UE side; UE just can calculate the difference with adjacent cell SFN at this cell SFN of synchronization according to adjacent cell SFN and self SFN like this;
4, UE reports Serving cell by difference;
In this step, the adjacent cell measurement report message of replying to network in ANR process by UE carries this SFN difference, notification service community;
5, between base station, carrying out the ABS cycle configures coordination;
6, Serving cell configures ABS to UE.
In this step, Serving cell utilizes the difference of SFN between adjacent base station/adjacent cell, configure with the ABS cycle of interactive interfacing, and the initial frame number of adjacent cell ABS, calculate the suitable ABS start frame/subframe position in this community; Then base station sends to UE by the ABS configuration after calculating.
Again when eating dishes without rice or wine to obtain SFN in employing and reporting the mode of adjacent cell SFN, can be after obtaining adjacent cell MIB as UE and parsing wherein SFN, directly in the adjacent cell measurement report message of replying to network, carry after adjacent cell SFN, Serving cell is reported, by the SFN difference between network side calculating self and adjacent base station/adjacent cell.
Also can be: when Home eNodeB is started shooting and completes after the arranging of ABS, OAM (Operations, Administration and Maintenance, Operations, Administration and Maintenance) the ABS information configuration of this Home eNodeB to macro base station.Macro base station is measured the deviation between the SFN obtaining between two base stations by user's ANR.Also can from adjacent cell under the mutual information in base station obtain after the SFN of adjacent cell, then the SFN by Serving cell calculates SFN difference.In concrete enforcement, base station, when obtaining the SFN difference of Serving cell and adjacent cell, can be undertaken mutual by S1 interface or X2 interface or OAM with the mutual information in base station under adjacent cell.
Obtain self and adjacent base station/adjacent cell SFN difference by one of above-mentioned 3 kinds of modes at serving BS after, just can configure with the ABS cycle of interactive interfacing, calculate suitable ABS start frame/subframe position.
Figure 10 is the ABS schematic diagram after SFN difference is processed, as shown in the figure, and such as SFN difference=1 of Yu Lin base station/community, this community, that is:
During the SFN=1 of Dang Zhe community (base station 1), adjacent cell (base station 2) SFN=0;
This cell SFN=2 o'clock, adjacent cell SFN=1;
This cell SFN=0 o'clock, adjacent cell SFN=1023, the like.
The FDD ABS cycle=40ms (4 radio frames) of still take is example, when the SFN3-6 of base station 2 configuration adjacent cells is that an ABS is during the cycle, it is one-period that the Serving cell at UE place configures SFN4-7, reaches synchronous between base station of ABS cycle, and effect as shown in figure 10.
Accordingly, in the embodiment of the present invention, also provide the wireless communication process method of UE side, described below.
Figure 11 is wireless communication process method implementing procedure schematic diagram, and as shown in the figure, UE side, when communicating processing according to ABS, can comprise the steps:
Step 1101, UE receive base station and configure the initial subframe of ABS and/or the entry-into-force time to UE;
Step 1102, UE configure to the initial subframe of ABS of UE according to base station and/or the entry-into-force time measures and/or transfer of data.
In enforcement, when the ABS cycle, configure can not be divided exactly by 1024 time, UE can count the next ABS cycle by the tail that stays of SFN.
In enforcement, at configuration ABS, during the cycle, UE can redefine the initial frame number in ABS cycle after SFN reversion.
Based on same inventive concept, a kind of base station, subscriber equipment are also provided in the embodiment of the present invention, the principle of dealing with problems due to base station, UE and a kind of accurate blank subframe ABS collocation method, wireless communication process method are similar, therefore the enforcement of base station, UE can, referring to the enforcement of method, repeat part and repeat no more.
Figure 12 is architecture of base station schematic diagram, as shown in the figure, in base station, can comprise:
Determination module 1201, for determining the initial subframe of ABS and/or entry-into-force time;
Configuration module 1203, for configuring the initial subframe of ABS and/or entry-into-force time to UE.
In enforcement, in base station, can further include:
Interactive module 1202, for unifying the initial subframe of ABS and/or entry-into-force time with other base stations;
Configuration module can also be further used for the initial subframe of ABS after reunification and/or entry-into-force time to configure to UE.
In enforcement, interactive module can also be further used for after determining the SFN difference of this base station and other base stations, or after ABS pattern change, the ABS frame number coming into force with other base station unifications, wherein, SFN difference is for making this base station synchronize with the UE measurement of other base station configurations and the ABS of network scheduling.
In enforcement, in base station, can further include:
Difference processing module 1204, for according to SFN difference and ABS cycle, other base stations ABS initial frame number configuration UE, measure and the ABS of network scheduling so that this base station and other base stations ABS configuration synchronization.
In enforcement, configuration module can also be further used for configuring can not be divided exactly by 1024 time when the ABS cycle, and the tail that stays of SFN is counted to the next ABS cycle.
In enforcement, configuration module can also be further used at configuration ABS, during the cycle, redefining the initial frame number in ABS cycle after SFN reversion.
Figure 13 is user device architecture schematic diagram, as shown in the figure, in UE, can comprise:
Receiver module 1301, configures the initial subframe of ABS and/or the entry-into-force time to UE for receiving base station;
Processing module 1302, for configuring to the initial subframe of ABS of UE and/or the entry-into-force time measures and/or transfer of data according to base station.
In enforcement, processing module can also be further used for configuring can not be divided exactly by 1024 time when the ABS cycle, and the tail that stays of SFN is counted to the next ABS cycle.
In enforcement, processing module can also be further used at configuration ABS, during the cycle, redefining the initial frame number in ABS cycle after SFN reversion.
For convenience of description, the each several part of the above device is divided into various modules with function or unit is described respectively.Certainly, when enforcement is of the present invention, the function of each module or unit can be realized in same or a plurality of software or hardware.
As seen from the above-described embodiment, in the technical scheme providing in the embodiment of the present invention, ABS subframe is arranged according to time sequencing, even if SFN reverses, between ABS subframe, also joins end to end, and the ABS cycle exists across SFN rollback point;
Further, mutual between base station/to indicate the frame number information that comes into force, and by this unified frame number information notice UE;
Further, in the situation that between base station, SFN frame number does not line up, this frame number that comes into force is mutual/indication can be when SFN difference be determined/after determining, carry out, or ABS pattern carries out after changing; If SFN frame number, in synchronization among base stations, only carries out after ABS pattern changes.
Further, if SFN frame number does not line up between base station, use SFN deviate to convert to come into force frame number to carry out in any side of both sides base station, avoid both sides all to carry out the mistake that frame number converts and causes;
Further, for the ABS cycle, configuring can not be by 1024 situation about dividing exactly, and after each SFN reversion, base station side/UE side recalculates the initial frame number in ABS cycle, and applies.
In the technical scheme providing in the embodiment of the present invention, proposed network side mutual/the absolute frame number of indication ABS configuration, and be handed down to the scheme of UE, and the ABS cycle across the UE behavior of SFN rollback point, thereby solved SFN reversing time point and ABS cycle starting point, can not corresponding generation SFN stay tail and ABS cycle of causing correspondence problem not.
Further, also solved when UE calculates concrete ABS cycle starting point the problem producing ambiguity with error, subframe position is evaded in the interference of having avoided UE to understand and network is intended to inconsistent problem.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (7)
1. an accurate blank subframe ABS collocation method, is characterized in that, comprises the steps:
The initial subframe of ABS and/or entry-into-force time are unified in base station and other base stations;
Base station configures the initial subframe of ABS after reunification and/or entry-into-force time to UE;
Wherein, the initial subframe of ABS and/or entry-into-force time are unified by mode mutual or indication in base station and other base stations;
Base station obtains the system frame number SFN difference of UE community and adjacent cell, and according to described SFN difference and ABS cycle, other base stations ABS initial frame number corresponding to adjacent cell, the ABS of configuration UE measurement and network scheduling, so that base station and other base stations ABS configuration synchronization;
Base station obtains described SFN difference, comprising:
The message of having carried SFN difference of replying from UE, obtain SFN difference, or
The message of the SFN that has carried adjacent cell replying from UE, obtain after the SFN of adjacent cell, the SFN by base station calculates described SFN difference, or
According to obtaining after the SFN of adjacent cell in the mutual information in other base stations corresponding with adjacent cell, the SFN by base station calculates described SFN difference;
When the ABS cycle, configure can not be divided exactly by 1024 time, the tail that stays of SFN is counted to the next ABS cycle, base station during the cycle, redefines the initial frame number in ABS cycle at configuration ABS after SFN reversion.
2. the method for claim 1, it is characterized in that, after determining the SFN difference of this base station and other base stations, or after ABS pattern change, unify ABS initial frame number with other base stations, and/or the entry-into-force time, wherein, SFN difference is for making this base station synchronize with the user equipment (UE) measurement of other base station configurations and the ABS of network scheduling.
3. a base station, is characterized in that, comprising:
Interactive module, for unifying the initial subframe of ABS and/or entry-into-force time with other base stations;
Configuration module, for configuring the initial subframe of ABS after reunification and/or entry-into-force time to UE;
Wherein, the initial subframe of ABS and/or entry-into-force time are unified by mode mutual or indication in base station and other base stations;
Base station obtains the system frame number SFN difference of UE community and adjacent cell, and according to described SFN difference and ABS cycle, other base stations ABS initial frame number corresponding to adjacent cell, the ABS of configuration UE measurement and network scheduling, so that base station and other base stations ABS configuration synchronization;
Base station obtains described SFN difference, comprising:
The message of having carried SFN difference of replying from UE, obtain SFN difference, or
The message of the SFN that has carried adjacent cell replying from UE, obtain after the SFN of adjacent cell, the SFN by base station calculates described SFN difference, or
According to obtaining after the SFN of adjacent cell in the mutual information in other base stations corresponding with adjacent cell, the SFN by base station calculates described SFN difference;
Configuration module is further used for configuring can not be divided exactly by 1024 time when the ABS cycle, and the tail that stays of SFN is counted to the next ABS cycle, and base station during the cycle, redefines the initial frame number in ABS cycle at configuration ABS after SFN reversion.
4. base station as claimed in claim 3, it is characterized in that, interactive module is further used for after determining the SFN difference of this base station and other base stations, or after ABS pattern change, the ABS frame number coming into force with other base station unifications, wherein, SFN difference is for making this base station synchronize with the UE measurement of other base station configurations and the ABS of network scheduling.
5. base station as claimed in claim 4, is characterized in that, further comprises:
Difference processing module, for according to SFN difference and ABS cycle, other base stations ABS initial frame number configuration UE, measure and the ABS of network scheduling so that this base station and other base stations ABS configuration synchronization.
6. a wireless communication process method, is characterized in that, comprises the steps:
UE receives base station and configures the initial subframe of ABS and/or the entry-into-force time to UE;
UE configures to the initial subframe of ABS of UE according to base station and/or the entry-into-force time measures and/or transfer of data;
Wherein, to configure the initial subframe of ABS and/or entry-into-force time to UE be base station and the initial subframe of other base stations ABS after reunification and/or entry-into-force time in base station;
It is that mode mutual or that the indicate initial subframe of ABS and/or the entry-into-force time after reunification passed through in base station and other base stations that base station configures to the initial subframe of ABS of UE and/or entry-into-force time;
Base station obtains the system frame number SFN difference of UE community and adjacent cell, and according to described SFN difference and ABS cycle, other base stations ABS initial frame number corresponding to adjacent cell, the ABS of configuration UE measurement and network scheduling, so that base station and other base stations ABS configuration synchronization;
Base station obtains described SFN difference, comprising:
The message of having carried SFN difference of replying from UE, obtain SFN difference, or
The message of the SFN that has carried adjacent cell replying from UE, obtain after the SFN of adjacent cell, the SFN by base station calculates described SFN difference, or
According to obtaining after the SFN of adjacent cell in the mutual information in other base stations corresponding with adjacent cell, the SFN by base station calculates described SFN difference;
UE configured can not be divided exactly by 1024 time when the ABS cycle, and the tail that stays of SFN is counted to the next ABS cycle, at configuration ABS, during the cycle, redefined the initial frame number in ABS cycle after SFN reversion.
7. a subscriber equipment, is characterized in that, comprising:
Receiver module, configures the initial subframe of ABS and/or the entry-into-force time to UE for receiving base station;
Processing module, for configuring to the initial subframe of ABS of UE and/or the entry-into-force time measures and/or transfer of data according to base station;
Wherein, to configure the initial subframe of ABS and/or entry-into-force time to UE be base station and the initial subframe of other base stations ABS after reunification and/or entry-into-force time in base station;
It is that mode mutual or that the indicate initial subframe of ABS and/or the entry-into-force time after reunification passed through in base station and other base stations that base station configures to the initial subframe of ABS of UE and/or entry-into-force time;
Base station obtains the system frame number SFN difference of UE community and adjacent cell, and according to described SFN difference and ABS cycle, other base stations ABS initial frame number corresponding to adjacent cell, the ABS of configuration UE measurement and network scheduling, so that base station and other base stations ABS configuration synchronization;
Base station obtains described SFN difference, comprising:
The message of having carried SFN difference of replying from UE, obtain SFN difference, or
The message of the SFN that has carried adjacent cell replying from UE, obtain after the SFN of adjacent cell, the SFN by base station calculates described SFN difference, or
According to obtaining after the SFN of adjacent cell in the mutual information in other base stations corresponding with adjacent cell, the SFN by base station calculates described SFN difference;
Processing module is further used for configuring can not be divided exactly by 1024 time when the ABS cycle, and the tail that stays of SFN is counted to the next ABS cycle, at configuration ABS, during the cycle, redefines the initial frame number in ABS cycle after SFN reversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010618558.8A CN102045850B (en) | 2010-12-31 | 2010-12-31 | Configuration method and equipment of almost blank subframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010618558.8A CN102045850B (en) | 2010-12-31 | 2010-12-31 | Configuration method and equipment of almost blank subframe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102045850A CN102045850A (en) | 2011-05-04 |
| CN102045850B true CN102045850B (en) | 2014-07-30 |
Family
ID=43911473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010618558.8A Active CN102045850B (en) | 2010-12-31 | 2010-12-31 | Configuration method and equipment of almost blank subframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102045850B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202400B (en) | 2011-05-31 | 2013-10-16 | 电信科学技术研究院 | Instruction and processing method and device for resource occupancy mode |
| US9264208B2 (en) * | 2011-07-12 | 2016-02-16 | Qualcomm Incorporated | Downlink control with control-less subframes |
| CN102264092B (en) * | 2011-07-27 | 2018-01-02 | 中兴通讯股份有限公司 | A kind of neighboring BS relationship processing method and system |
| CN102984722B (en) * | 2011-09-06 | 2015-06-24 | 普天信息技术研究院有限公司 | Measuring and collocation method in interference coordination mechanism |
| CN103001688B (en) * | 2011-09-09 | 2015-05-06 | 上海贝尔股份有限公司 | Method and device for determining time domain blank subframe density in heterogeneous network |
| CN102333378B (en) * | 2011-09-16 | 2015-02-18 | 新邮通信设备有限公司 | Interference coordination method in LTE (long term evolution) system |
| US9253794B2 (en) * | 2011-12-02 | 2016-02-02 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient spectrum utilization with almost blank subframes |
| CN103516419B (en) * | 2012-06-15 | 2017-10-27 | 中兴通讯股份有限公司 | A kind of method and device for dispatching air interface synchronization subframe |
| CN103546894A (en) * | 2012-07-17 | 2014-01-29 | 中兴通讯股份有限公司 | Interference coordination method and base stations |
| CN103796239A (en) * | 2012-11-02 | 2014-05-14 | 北京三星通信技术研究有限公司 | Method and apparatus for eliminating interference among districts |
| WO2014113963A1 (en) * | 2013-01-25 | 2014-07-31 | 华为技术有限公司 | Uplink resource allocation method, ue and base station |
| CN104303535B (en) * | 2013-03-22 | 2018-05-25 | 华为技术有限公司 | A kind of method for transmitting signals and equipment |
| WO2014146305A1 (en) * | 2013-03-22 | 2014-09-25 | 华为技术有限公司 | Almost blank subframe allocation method, apparatus, and system |
| CN104717754A (en) * | 2013-12-17 | 2015-06-17 | 中兴通讯股份有限公司 | Method and device for processing ABS in LTE heterogeneous network |
| JP6604444B2 (en) * | 2016-03-04 | 2019-11-13 | 華為技術有限公司 | Subframe configuration switching method and apparatus |
| CN114916077A (en) * | 2019-01-24 | 2022-08-16 | 华为技术有限公司 | Method and device for determining configuration resources |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1227602A1 (en) * | 2001-01-24 | 2002-07-31 | Lucent Technologies Inc. | Method for dynamic allocation of timeslots in a TDD communication system |
| CN101778392A (en) * | 2009-01-08 | 2010-07-14 | 中国移动通信集团公司 | Method and equipment for using guard band |
| CN101873702A (en) * | 2009-04-24 | 2010-10-27 | 中国移动通信集团公司 | Method for selecting main carrier and base station equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686496A (en) * | 2008-09-27 | 2010-03-31 | 中兴通讯股份有限公司 | Methods for allocating downlink sub-frames, and transmitting and acquiring information of WiMAX evolution system |
-
2010
- 2010-12-31 CN CN201010618558.8A patent/CN102045850B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1227602A1 (en) * | 2001-01-24 | 2002-07-31 | Lucent Technologies Inc. | Method for dynamic allocation of timeslots in a TDD communication system |
| CN101778392A (en) * | 2009-01-08 | 2010-07-14 | 中国移动通信集团公司 | Method and equipment for using guard band |
| CN101873702A (en) * | 2009-04-24 | 2010-10-27 | 中国移动通信集团公司 | Method for selecting main carrier and base station equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102045850A (en) | 2011-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102045850B (en) | Configuration method and equipment of almost blank subframe | |
| US20200163074A1 (en) | Beam selection method and device | |
| CN102136863A (en) | Method and device for realizing almost blank subframe processing and synchronization between base stations | |
| CN102036295B (en) | Method, system and equipment for determining uplink and downlink configuration | |
| US9973934B2 (en) | Cell clustering based configuration of flexible time division duplex communication | |
| TWI558257B (en) | Small cell detection method and apparatuses using the same | |
| CN103037399B (en) | A kind of different frequency measurement configuration method and device | |
| EP3536040B1 (en) | System information for narrowband | |
| CN108781421A (en) | Operation mode on shared communication medium is coordinated | |
| CN110225575A (en) | Transmission power control method, relevant device and system | |
| CN105191391B (en) | The measurement method that carrier wave polymerize between base station, user equipment and base station | |
| CN103428869B (en) | The method of Inter-Cell Interference Coordination, base station and communication system | |
| CN105493583A (en) | High efficiency wireless (HEW) access point (AP) coordination protocol | |
| CN110557814B (en) | Awakening area updating method and device | |
| CN103636248A (en) | PCI confusion detection method, user equipment, and base station | |
| CN102843768B (en) | Paging method and equipment | |
| CN105745852A (en) | Systems and methods for non-cellular wireless access | |
| CN102026363B (en) | Base station internal synchronization method of hierarchical system and base station | |
| CN104412660A (en) | Apparatus and method for cell information indication in a wireless network | |
| CN102170657B (en) | Method and equipment for determining subframe information | |
| CN104811962A (en) | Small cell state switching method and small cell state switching device | |
| CN103733684A (en) | Method and apparatus for providing increased small cell resource utilization | |
| CN102958091A (en) | Pilot-frequency measuring parameter configuration method and pilot-frequency measuring parameter configuration device | |
| CN104349451A (en) | Method and equipment for synchronizing | |
| CN105101389A (en) | Method and device in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |