CN102136863A - Method and device for realizing almost blank subframe processing and synchronization between base stations - Google Patents
Method and device for realizing almost blank subframe processing and synchronization between base stations Download PDFInfo
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- CN102136863A CN102136863A CN2011100840119A CN201110084011A CN102136863A CN 102136863 A CN102136863 A CN 102136863A CN 2011100840119 A CN2011100840119 A CN 2011100840119A CN 201110084011 A CN201110084011 A CN 201110084011A CN 102136863 A CN102136863 A CN 102136863A
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Abstract
The invention discloses a method and device for realizing almost blank subframe (ABS) processing and synchronization between base stations. The method comprises the following steps: a base station acquires a system frame number (SFN) difference/subframe difference between a service cell of user equipment (UE) and an adjacent cell; and the base station allocates UE measurement and network-scheduled ABS according to the SFN difference/subframe difference, an ABS period and an initial frame number of the adjacent cell, thus the ABS allocation of the service cell is synchronous with the ABS allocation of the adjacent cell. By applying the method and device disclosed by the invention, periodic almost blank subframe allocation at a network side can be in synchronous correspondence even if the system frame number is not consistent, thus the accuracy of time domain correspondence of the almost blank subframes adopted by different base stations is enhanced.
Description
Technical field
The present invention relates to wireless communication field, the method and apparatus of synchronization among base stations is handled and realized to particularly a kind of accurate blank subframe.
Background technology
For ease of statement, among the application, MUE (grand subscriber equipment) is meant the UE (User Equipment, subscriber equipment) of (Closed Subscriber Group, the closed user group) ability that do not have CSG fully; Be non-member's UE for certain Femto (femtocell formula base station) perhaps, the CSG ID of this Femto (closed user group id) is not in the CSG of UE white list;
Femto: the low-power Home eNodeB that has only member UE to insert;
Macro: macro base station;
PUE: insert pico (Pico cell formula base station), and the UE that under pico, works.
Fig. 1 enters the covering cavity schematic diagram of Femto for MUE, for the situation of closed mode Home eNodeB, as shown in Figure 1, UE1 belongs to the 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, be not the CSG user's (UE1 is MUE) who authorizes, even the femto signal strength signal intensity is higher than the signal strength signal intensity at grand station far away, UE1 also can't switch to femto and will be subjected to strong jamming from femto.The non-constant of channel condition that so just might cause user UE1 produces call drop, or even can't work.This also is referred to as to have entered the covering cavity.In existing LTE (Long Term Evolution, the Long Term Evolution) agreement, can use ABS (almost Blank Subframe, accurate blank subframe) time domain subframe to evade scheme and solve descending interference problem under the above-mentioned situation.This is disturbing the scheme of evading also to be faced with the problem that whether can reach synchronously between system in force on time domain.At present only notify each base station public SFN zero-time in the area synchronously for TDD clean culture area and FDD and TDD multicast MBSFN in the 3GPP standard.Can not guarantee that for FDD clean culture area and above-mentioned area the SFN frame number can align.This can cause the interference of use time domain to evade and other need guarantee the enforcement that the synchronous scheme of time domain SFN frame number can not be correct.
Be for the synchronous brief introduction of LTE below.
Cell searching is the first step operation that UE enters the sub-district, UE is by finishing the down-going synchronous of Cell searching behavior acquisition and base station, this comprises time synchronized and Frequency Synchronization synchronously, and obtain the physical-layer cell identifier of sub-district by the detection of synchronizing signal, UE is based on above-mentioned information, receive also and read the broadcast message of this sub-district, thereby obtain system information of subdistricts determining follow-up UE operation, as the sub-district gravity treatment, resident, initiate operation such as access at random.Main flow process is:
Determine 5ms regularly by master sync signal PSS, and utilize PSC to carry out the detection of ID in the sub-district;
Time synchronized is adjusted;
Coarse frequency is synchronous;
Frequency is adjusted;
Determine that by SSS 10ms regularly detects with cell set ID, determine sub-district ID, finish the detection of CP type simultaneously;
Smart Frequency Synchronization;
Frequency is adjusted;
Decipher out the system information on the PBCH.
Below the ABS solution is carried out brief introduction.
Be directed to the covering problem that the MUE among Fig. 1 may meet with, a kind of possible time domain solution is:
Because femto has strong jamming to the macro base station, can use the ABS subframe to evade at femto, coordinates sub-frame allocation by network side between macro and femto, and at mutual good back notice UE.When non-member's MUE is subjected to the strong jamming of femto and can't work the time, uses this ABS subframe and evade configuration, only on the ABS subframe of network notice, measure and transfer of data.Fig. 2 uses schematic diagram for ABS, as shown in the figure, because the femto base station stops the scheduling of data field in the ABS subframe, only send CRS (Cell-specific reference signals, the exclusive pilot signal in sub-district), then can not produce strong jamming to MUE, MUE can normally measure original Serving cell (serving cell, be the macro macro base station), and keep with the normal of former Serving cell and be connected.
The ABS schematic diagram that Fig. 3 uses in the femto coverage for UE, as shown in the figure, three ABS subframes are arranged on the femto, the position of these subframes is good alternately and notice UE by network side, after non-member UE falls into the femto coverage, only on the ABS subframe, accept to dispatch/measure, the strong jamming that can more effectively avoid femto to bring.
The ABS signal of having represented in the pico coverage among the figure simultaneously or having measured pico in the macro scope close: because the macro base station can produce strong jamming to pico with pico, so no matter UE is in the pico base station or at macro base station, as long as be subjected to the interference of macro, the ABS that just can use macro to go up regulation carries out subframe to be evaded and solving.
This kind subframe is evaded scheme and has been in harmonious proportion MUE and femto base station, PUE and conflicts with interference between the macro, makes that UE is able to operate as normal under the strongly disturbing situation is being arranged originally.But its deficiency is:
The situation of correspondence synchronously can appear in periodic ABS sub-frame configuration, and causes the corresponding inaccuracy of each base station employed ABS subframe time domain.
Summary of the invention
The purpose of this invention is to provide a kind of ABS processing method and equipment, the problem of correspondence synchronously can appear in periodic ABS sub-frame configuration in the prior art in order to solve.
Another object of the present invention provides a kind of synchronous method of System Frame Number between the base station that realizes, in order to realize synchronously between the base station.
A kind of ABS processing method is provided in the embodiment of the invention, has comprised the steps:
The base station obtains SFN difference/subframe difference that Serving cell and adjacent sub-district are provided in the embodiment of the invention of UE;
The base station measure according to the ABS initial frame number configuration UE of SFN difference/subframe difference and ABS cycle, adjacent sub-district and the ABS of network scheduling so that the ABS configuration synchronization of Serving cell and adjacent sub-district.
A kind of ABS processing method is provided in the embodiment of the invention, has comprised the steps:
UE obtains the SFN/ subframe numbers of adjacent sub-district from adjacent system information of subdistricts, and UE sends the SFN/ subframe numbers of adjacent sub-district to the base station of Serving cell ownership;
And/or,
UE obtains the SFN/ subframe numbers of adjacent sub-district and obtains the SFN/ subframe numbers of Serving cell from the system information of Serving cell from adjacent system information of subdistricts, and UE sends the SFN difference/subframe difference of Serving cell and adjacent sub-district to the base station of Serving cell ownership.
A kind of ABS processing method is provided in the embodiment of the invention, has comprised the steps:
The SFN/ subframe numbers of each sub-district of subordinate is determined in the base station;
The base station when disposing with other base stations mutual ABS cycle, the SFN/ subframe numbers of mutual each sub-district of subordinate.
A kind of base station is provided in the embodiment of the invention, has comprised:
Acquisition module is used to obtain the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district;
Configuration module, be used for according to the ABS initial frame number configuration UE of SFN difference/subframe difference and ABS cycle, adjacent sub-district measure and the ABS of network scheduling so that the ABS configuration synchronization of Serving cell and adjacent sub-district.
A kind of subscriber equipment is provided in the embodiment of the invention, has comprised: first determination module and first sending module, and/or, second determination module and second sending module, wherein:
First determination module is used for obtaining from adjacent system information of subdistricts the SFN/ subframe numbers of adjacent sub-district;
First sending module is used for sending to the base station of Serving cell ownership the SFN/ subframe numbers of adjacent sub-district;
Second determination module is used for obtaining the SFN/ subframe numbers of adjacent sub-district and the SFN/ subframe numbers that obtains Serving cell from the system information of Serving cell from adjacent system information of subdistricts;
Second sending module is used for the SFN difference/subframe difference to the base station of Serving cell ownership transmission Serving cell and adjacent sub-district.
A kind of base station is provided in the embodiment of the invention, has comprised:
Determination module is used for determining the SFN/ subframe numbers of each sub-district of subordinate;
Interactive module is used for when disposing with other base stations mutual ABS cycle, the SFN/ subframe numbers of mutual each sub-district of subordinate.
A kind of method that realizes synchronization among base stations is provided in the embodiment of the invention, has comprised the steps:
The base station obtains the Serving cell of user equipment (UE) and the system frame number SFN difference/subframe difference of adjacent sub-district;
Self SFN/ subframe is upgraded according to SFN difference/subframe difference in the base station, finishes SFN/ synchronizing sub-frame between the base station.
A kind of base station is provided in the embodiment of the invention, comprises:
Acquisition module is used to obtain the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district;
Update module is used for upgrading the SFN/ subframe numbers of this sub-district, so that Serving cell and adjacent sub-district reach the SFN/ synchronizing sub-frame according to SFN difference/subframe difference of obtaining.
In the technical scheme of ABS processing method that the embodiment of the invention provides and equipment, before the ABS configuration of carrying out, obtain the SFN difference/subframe difference between the different base station, and when sending the ABS configuration to the UE under the different base station, take into full account SFN difference/subframe difference influence, with this guarantee the periodic ABS sub-frame configuration of network side can be because of the not inconsistent of SFN number/subframe numbers can not be corresponding synchronously, strengthened the accuracy of the employed ABS subframe of different base station time domain correspondence.
Further, after guaranteeing ABS sub-frame configuration unanimity, synchronous correspondence, can reduce network and send the size of ABS configuration signal, and make UE can use unified ABS to measure multi-cell signals to UE.
In a kind of technical scheme that realizes the method and apparatus that System Frame Number between the base station is synchronous that the embodiment of the invention provides, the Serving cell of the user equipment (UE) that utilization gets access to and the system frame number SFN of adjacent sub-district difference/subframe difference, between the base station, realize the synchronous of SFN/ subframe, also can guarantee the periodic ABS sub-frame configuration of network side can be because of the not inconsistent of SFN number/subframe numbers can not be corresponding synchronously, strengthened the accuracy of the employed ABS subframe of different base station time domain correspondence.
Description of drawings
Fig. 1 enters the covering cavity schematic diagram of Femto for MUE in the background technology;
Fig. 2 is that ABS uses schematic diagram in the background technology;
The ABS schematic diagram that Fig. 3 uses in the femto coverage for UE in the background technology;
Fig. 4 is an ABS correspondence principle schematic diagram synchronously in the embodiment of the invention;
Fig. 5 is the ABS processing method implementing procedure schematic diagram of base station side in the embodiment of the invention;
Fig. 6 is the ABS processing method implementing procedure schematic diagram of employing mode 1 in the embodiment of the invention;
Fig. 7 is the ABS processing method implementing procedure schematic diagram of employing mode 2 in the embodiment of the invention;
Fig. 8 is the ABS processing method implementing procedure schematic diagram of embodiment 3 in the embodiment of the invention;
Fig. 9 is the ABS processing method implementing procedure schematic diagram of mode 3 in the embodiment of the invention;
Figure 10 is through the ABS schematic diagram after the processing of SFN difference in the embodiment of the invention;
Figure 11 is the ABS processing method implementing procedure schematic diagram of UE side in the embodiment of the invention;
Figure 12 is the ABS processing method implementing procedure schematic diagram of other base station side in the embodiment of the invention;
Figure 13 is base station one structural representation in the embodiment of the invention;
Figure 14 is a user device architecture schematic diagram in the embodiment of the invention;
Figure 15 is base station two structural representations in the embodiment of the invention;
Figure 16 is base station three structural representations in the embodiment of the invention.
Embodiment
The inventor notices in the invention process:
Along with the requirement of growing data rate and business load, traditional covering with the macro base station individual layer provides the method for access can not satisfy the demands.The employing layering covers, can be good at addressing this is that at hot zones or some lower powered base stations of indoor deployment (Home eNodeB/Pico/Femto/Relay, family evolution base station/Pico cell formula base station/femtocell formula base station/midsequent base station).This lower powered base station is a kind of base station equipment that is 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 more cheaply are provided more.But wherein there is certain restriction the femto base station to the Member Users who inserts, non-Member Users can not insert, if non-Member Users enters the coverage of this base station, then need to use interference to evade subframe ABS subframe bypassing method and continue to stay the base station that to insert, otherwise can cover cavity (coverage hole) owing to the low power base station signal enters by force, cause and to work.If wherein the pico base station is in frequently with the macro macro base station, also may produce strong jamming and cause and can't work, need ABS subframe Hedging mechanism to solve interference problem equally.
And, perhaps avoiding the needs of blind area in the network design just because of the laying of above-mentioned multiple heterogeneous network node, UE may measure a plurality of cell signals in same place.In order to reduce network sends the ABS configuration signal to UE size as far as possible, and make UE can use unified ABS to measure multi-cell signals, then can require to disturb ABS configuration to be consistent (keeping synchronously) with interfered cell (interfered cell has a plurality of).Stipulated to use the ABS cycle between the interface connection transmission different base station to dispose in the existing protocol:
-FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) is 40ms;
-TDD (Time Division Duplex, time division duplex) may be set to 20ms/60ms/70ms according to different TDD configuration (configuration).
Because network only transmits the ABS cycle now and disposes, can't obtain SFN (system frame number, System Frame Number) number whether consistent with the ABS subframe of judging two sub-districts under the different base station, when UE inserts sub-district under certain base station, can't know then whether the sub-district ABS under adjacent another base station is corresponding from the base station with self institute.
Fig. 4 is ABS correspondence principle schematic diagram synchronously, with FDD ABS cycle=40ms is example, if SFN difference=1 between two base stations, then as shown in Figure 4, even two base stations are appointed all from SFN=0, use the identical ABS cycle to dispose, the ABS between the base station can not be corresponding synchronously so.
As seen, the different base station that does not have technical scheme to solve existing network is not known the other side's System Frame Number (system frame number) mutually, also just can't realize being configured to an ABS during cycle when a plurality of radio frames, the problem of the ABS cycle time domain alignment between different base station does not have technical scheme to solve corresponding signaling process and UE behavior as yet yet.
Given this, the present invention proposes to obtain the SFN difference/subframe difference between the different base station before carrying out the ABS configuration, and when sending the ABS configuration to the UE under the different base station, takes into full account SFN difference/subframe difference influence, the ABS cycle of aliging between configurating base station.Guarantee that with this periodic ABS sub-frame configuration can be because of SFN number not inconsistent and can not be corresponding synchronously, strengthened the accuracy of the employed ABS subframe of different base station time domain correspondence.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
In declarative procedure, enforcement from base station side, UE side, other base stations is respectively described, also will implement to describe to their cooperation, but this does not also mean that they must cooperate enforcement, in fact, when they were separately implemented separately, it had also solved the problem that exists respectively on base station side, UE side, other base stations, when just they are used in combination, can obtain better technique effect.
Fig. 5 is the ABS processing method implementing procedure schematic diagram of base station side, as shown in the figure, can comprise the steps: in to the processing procedure of ABS in base station side
In the enforcement, when execution in step 501, when obtaining the Serving cell of UE and the SFN difference of adjacent sub-district/subframe difference in the base station, can comprise one of following three kinds of modes or its combination:
1, from the message of having carried SFN difference/subframe difference that UE replys, obtains SFN difference/subframe difference;
2, obtain the SFN/ subframe numbers of adjacent sub-district the message of the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE after, the SFN by Serving cell calculates SFN difference/subframe difference;
3, from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
For the 1st, 2 kind of mode, for obtaining of adjacent cell SFN, since at present without any agreement support SFN between the base station or subframe mutual/indication, so provide use UE to eat dishes without rice or wine to obtain the adjacent area system information in the embodiment of the invention, the mode of resolving SFN or subframe position and reporting.
Concrete, for host system message block and SFN, System Frame Number is made up of 10bits.SFN host system message block MIB (Master Information Block, Master Information Block) transmission can be represented the value of SFN: the most-significant byte of the systemFrameNumber in the MIB message (System Frame Number) sign SFN, back two the obtaining of implicit expression when P-BCH (Physical broadcast channel, Physical Broadcast Channel) decodes then of SFN.Because the MIB transmission cycle is 40ms, and in the transmission cycle, be to send 4 times identical content at interval, send for these four times and can be identified as low 2 of SFN respectively: 00/01/10/11 according to sending order with 10ms.
Concrete, read cell system information and at first will carry out synchronizing process before, read master sync signal and auxiliary synchronous signals acquisition by physical layer.Determine 5ms regularly by master sync signal PSS, determine that by auxiliary synchronous signals SSS 10ms regularly, can determine the frame head position of this synchronizing signal place frame.
In addition, the inventor notices: the purpose of SON (Self Organising Networks, self-organizing network)-ANR (Automatic Neighbour Relation, Automatic Neighboring Relation) mechanism is in order to set up incidence relation between the LTE sub-district.Finish this function, Serving cell can pass through RRC (Radio Resource Control, Radio Resource control) message terminal is configured, and makes it report the fixedly information of adjacent area.After this reporting information is received in the base station of Serving cell, can determine whether it is added as associated cell, can set up X2 interface if desired.UE obtains the fixedly information of adjacent area, need at first read the system information MIB and the SIB (System Information Block, system information block) 1 of adjacent area, and resolves parameter wherein, reports again.The parameter that current UE is obtained from the system information of adjacent area comprises: Global Cell ID (global sub-district 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 sub-district.
Also promptly, the 1st, in 2 kind of mode, can after getting access to the SFN/ subframe numbers of adjacent sub-district, UE from the message of having carried SFN difference/subframe difference that UE replys, obtain SFN difference/subframe difference; Or, obtain the SFN/ subframe numbers of adjacent sub-district the message of the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE after, the SFN by Serving cell calculates SFN difference/subframe difference.
Further, in the enforcement, the message that UE replys can be measurement report message.
Further, in the enforcement, the measurement report message that UE replys can be the measurement report message of replying in the SON-ANR process that initiate the base station.
In execution in step 502, the ABS of configuration UE is so that the ABS configuration synchronization of Serving cell and adjacent sub-district is meant the ABS of configuration service sub-district so that the ABS configuration of Serving cell and adjacent sub-district is in same time domain; Also promptly, Serving cell is configured on the time domain corresponding with the ABS of adjacent sub-district.
For obtaining of the ABS initial frame number of adjacent sub-district, can with other base stations by wired network X2 mouth, S1 mouth or OAM obtain alternately.
In addition, the embodiment of the invention can also utilize the Serving cell of the UE that obtains in the step 501 and the system frame number SFN difference of adjacent sub-district/subframe difference to realize SFN/ synchronizing sub-frame between the base station, be that the base station is according to SFN difference/subframe difference, upgrade self SFN number/subframe numbers, finish SFN/ synchronizing sub-frame between the base station.Realize SFN/ synchronizing sub-frame between the base station, equally also realizing the ABS configuration synchronization of Serving cell and adjacent sub-district.
Illustrate with example below.
Embodiment one
Fig. 6 as shown in the figure, when employing eats dishes without rice or wine to obtain the mode of SFN and reporting neighboring cell/local area SFN difference or subframe difference, can comprise the steps: for the ABS processing method implementing procedure schematic diagram of employing mode 1
Step 601, serving BS configuration ANR measure;
Step 602, UE obtain the MIB of sub-district under the adjacent base station;
In this step, network side is initiated the SON-ANR process to sub-district under the adjacent base station.This process can make UE be synchronized to adjacent sub-district, and reads adjacent system information of subdistricts, wherein comprises the MIB message of adjacent sub-district.UE reads MIB message and resolves, and can therefrom obtain the value of adjacent cell SFN;
Step 603, UE parse subframe skew of adjacent sub-district and the skew of self subframe and calculate the subframe difference, parse adjacent cell SFN and self SFN simultaneously and calculate the SFN difference;
In this step, the UE of connected state or Idle state needs to guarantee that the system information of the Serving cell that reads effectively just can carry out work.So the SFN of Serving cell or subframe skew are known for the UE side; UE just can be according to the skew of adjacent cell SFN or subframe and self SFN or the subframe calculations of offset difference in this cell SFN of synchronization or subframe and adjacent cell SFN or subframe like this;
Step 604, UE report Serving cell with difference;
In this step, in the ANR process, carry this SFN difference/subframe difference, notification service sub-district to the measurement report message that network is replied by UE;
Carry out the ABS cycle between step 605, base station and dispose coordination;
Step 606, Serving cell dispose ABS to UE.
In this step, Serving cell utilizes adjacent base station/adjacent minizone SFN difference/subframe difference, dispose with the ABS cycle of interactive interfacing, and the initial frame number of adjacent sub-district ABS, calculate this sub-district suitable ABS start frame/subframe position; ABS configuration after the base station will be calculated then sends to UE.
Embodiment two
Fig. 7 is the ABS processing method implementing procedure schematic diagram of employing mode 2, as shown in the figure, when employing is eated dishes without rice or wine to obtain the skew of SFN/ subframe and reported the mode of adjacent cell SFN/subframe skew, can comprise the steps:
Step 701, serving BS configuration ANR measure;
Step 702, UE and the Leakey sub-district of standing down is synchronous, obtains the subframe skew and the MIB of sub-district under the adjacent base station;
Step 703, UE parse adjacent cell SFN;
Step 704, UE report Serving cell with adjacent cell SFN/subframe skew;
Carry out the ABS cycle between step 705, base station and dispose coordination;
Step 706, serving BS calculate this sub-district and adjacent cell SFN difference/subframe difference;
Step 707, Serving cell dispose ABS to UE.
As different from Example 1, after UE obtains adjacent sub-district MIB and parses wherein SFN, directly after carrying adjacent cell SFN or subframe skew in the measurement report message of replying to network, Serving cell is reported, by SFN difference or the subframe difference between network side calculating self and the adjacent base station/adjacent sub-district.
In the enforcement,, in the ABS of base station side processing procedure, may further include by as seen above-mentioned:
The ABS of Serving cell of configuration is sent to UE.
In concrete the enforcement, can further include:
Dispatch UE at Serving cell according to SFN difference/subframe difference the base station, and/or consideration SFN difference/subframe difference influence is carried out correct measurement configuration to UE.
Below with the example explanation.
The flow process that present embodiment has been described in femto and Macro scene is used, there is not X2 interface between femto and the Macro sub-district, and the ABS subframe is configured by femto, after the start of family base station and finishing being provided with of ABS, OAM (Operations, Administration and Maintenance, Operations, Administration and Maintenance) give macro base station the ABS information configuration of this Home eNodeB.The ANR of macro base station by the user measures the deviation between the SFN that obtains between two base stations, and in the subsequent user scheduling and measure and consider this deviation.
Above-mentioned " in subsequent user scheduling and measurement, considering this deviation ", can be macro base station gives SFN under the femto that is subjected to the UE configuration that femto influences based on femto, the SFN deviate of sending with UE, the ABS subframe that calculates the femto configuration is in the SFN of macro base station correspondence value, and, carry out its scheduling of UE and configuration of measurement down according to the SFN value of these macro base stations.
Fig. 8 is the ABS processing method implementing procedure schematic diagram of embodiment 3, as shown in the figure, can comprise the steps:
Step 801, OAM are the ABS information of serving BS configuration femto base station;
Step 802, serving BS configuration ANR measure;
Step 803, UE obtain the mib information of femto base station;
Step 804, UE calculate the SFN difference with the femto base station;
Step 805, UE report serving BS with the SFN difference;
Step 806, Serving cell are UE configuration ABS metrical information.
For the 3rd kind of mode, can from adjacent sub-district under the mutual information in base station obtain the SFN of adjacent sub-district after, the SFN by Serving cell calculates the SFN difference then.
In concrete the enforcement, the base station can be undertaken mutual by S1 interface or X2 interface or OAM with the mutual information in the base station under the adjacent sub-district when obtaining the SFN difference of Serving cell and adjacent sub-district.
Describe with example below.
Fig. 9 is the ABS processing method implementing procedure schematic diagram of mode 3, as shown in the figure, when adopting the mode of wired network exchange SFN information, can comprise the steps:
Carry out the ABS cycle between step 901, base station and dispose coordination;
It is mutual to carry out SFN between step 902, base station;
In the enforcement, except the mutual ABS cycle disposes, also mutual/indication SFN value between the base-station node, can use S1/X2 interface or OAM node;
Step 903, serving BS calculate the SFN difference of local area and adjacent area;
In the enforcement, the difference of SFN between Serving cell calculating self and the adjacent base station/adjacent sub-district;
Step 904, Serving cell dispose ABS to UE.
In the enforcement, Serving cell utilizes the difference of adjacent base station/adjacent minizone SFN, dispose with the ABS cycle of interactive interfacing, and the initial frame number of adjacent sub-district ABS, calculate this sub-district suitable ABS start frame/subframe position; ABS configuration after the base station will be calculated sends to UE.
Present embodiment is the explanation that SFN difference/subframe difference is used.Serving BS obtains self and adjacent base station/adjacent cell SFN difference/subframe difference by one of above-mentioned 3 kinds of modes after, dispose with the ABS cycle of interactive interfacing, calculate suitable ABS start frame/subframe position.
Figure 10 is the ABS schematic diagram after handling through the SFN difference, as shown in the figure, and such as SFN difference=1 of this sub-district and adjacent base station/sub-district, that is:
When the SFN=1 of this sub-district (base station 1), adjacent sub-district (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, and the like.
Be example still with FDD ABS cycle=40ms (4 radio frames), when the SFN3-6 of the adjacent sub-district of 2 configurations, base station is that an ABS is during the cycle, it is one-period that the Serving cell at UE place then disposes SFN4-7, reach the ABS cycle between the base station synchronously, effect is as shown in figure 10.
The corresponding UE side that also provides in the embodiment of the invention and the execution mode of other base stations describe below.
Figure 11 is the ABS processing method implementing procedure schematic diagram of UE side, as shown in the figure, can comprise the steps:
And/or,
In the enforcement, step 1101, the 1102nd, the execution mode of the UE side when employing mode 2, step 1103, the 1104th, the execution mode of the UE side when employing mode 1 does not have inevitable sequential relationship between them, can arrange as required, adopt in concrete practice.
In the enforcement, UE can send the SFN of adjacent sub-district and/or the SFN difference of Serving cell and adjacent sub-district to the base station of Serving cell ownership by measurement report message.
In the enforcement, UE obtains the SFN of adjacent sub-district from system information, and the measurement report message that UE replys can be to carry out in the SON-ANR process that initiate the base station.
Figure 12 is the ABS processing method implementing procedure schematic diagram of other base station side, as shown in the figure, can comprise the steps:
The SFN of each sub-district of subordinate is determined in step 1201, base station;
In the enforcement, step 1201, the 1202nd, the execution mode of other base station side when employing mode 3.
In the enforcement, the base station can be undertaken by S1 interface or X2 interface or OAM when the SFN of mutual each sub-district of subordinate alternately.
In the implementation process of above-mentioned each scheme, can also further handle as follows:
(1) be in interfered cell as UE, use the ANR function to obtain the difference of the SFN of interfered cell or subframe and its Serving cell after, difference is sent to disturbed Serving cell:
-Serving cell may not send to this difference interfered cell (promptly not producing mutual signaling), only calculating this cell scheduling and issuing ABS when disposing measuring period, consider the influence of SFN difference/subframe difference, the ABS initial frame number of the ABS cycle initial frame number conversion cost sub-district that interfered cell is sent.
-or, disturbed Serving cell sends to interfered cell with this SFN difference/subframe difference, consider SFN difference/subframe difference influence by interfered cell, the ABS initial frame number that is converted into interfered cell sends to interfered cell again, can be directly used in scheduling when then interfered cell is received this initial frame number and issue ABS to dispose to UE.
(2) in like manner, when UE is in interfered cell, after using the ANR function to obtain the difference of the SFN of interfered cell or subframe and its Serving cell, difference is sent to the interference Serving cell, also can adopt similar method in (), carry out difference in a wherein side of interfered cell/interfered cell and convert, thereby after having avoided interference side and mutual SFN difference of disturbed top-cross or subframe difference, both sides carry out the double counting mistake that difference converts and brings.
Also promptly, the conversion of this SFN or subframe deviation can be carried out (use ANR obtains the base station at deviation UE place, the perhaps measured base station of this UE), the mistake of avoiding both sides all to convert and cause in any side that the deviation base station is arranged.For another example:
Can stipulate in agreement that this deviation converts and carry out that suppose that then under the femto-macro scene, femto is an interference base station, macro is an interfered base station at a side group station of disturbing.
-if the SFN difference/subframe difference of macro from eating dishes without rice or wine to obtain, then can send the femto base station preservation of interference by interface to, whenever need be the time to the macro of the correspondence transmission parameter relevant with SFN or subframe, be converted into the SFN/ subframe value that macro is suitable for by femto according to the SFN difference/subframe difference and the SFN/ subframe of self of preserving, send to macro again and measure configuration and scheduling;
-if the SFN difference/subframe difference of femto from eating dishes without rice or wine to obtain, then preserve voluntarily, in the time need sending the parameter relevant to the macro of correspondence with the SFN/ subframe, be converted into the SFN/ subframe value that macro is suitable for by femto according to the SFN difference/subframe difference and the SFN/ subframe of self of preserving, send to macro again and measure configuration and scheduling.
Stipulate such as, agreement that this deviation converts again and carry out at a disturbed side group station that then if the femto-macro scene, femto is an interference base station, macro is an interfered base station.
-if the SFN difference/subframe difference of femto from eating dishes without rice or wine to obtain) then can preserve by the macro that interface send interfered base station to, when this macro receives the ABS configuration of this femto again, convert according to parameter relevant in the SFN difference/subframe difference of preserving and the femto ABS configuration of receiving by macro, measure configuration and dispatch with self with the SFN/ subframe;
-if the SFN difference/subframe difference of macro from eating dishes without rice or wine to obtain, then preserve voluntarily, when the femto from correspondence receives other parameters relevant with the SFN/ subframe, according to SFN difference/subframe difference of preserving and should the parameter relevant converting of receiving, measure configuration and self scheduling by macro with the SFN/ subframe.
Based on same inventive concept, the base station that the Serving cell that also provides UE to belong in the embodiment of the invention is affiliated and other base stations, subscriber equipment, because the principle that these equipment are dealt with problems is similar to the ABS processing method, therefore the enforcement of these equipment can repeat part and repeat no more referring to the enforcement of method.
Figure 13 is base station one structural representation, and as shown in the figure, the base station under the Serving cell of UE ownership can comprise:
In the enforcement, acquisition module can comprise with one of lower unit or its combination:
First acquiring unit is used for obtaining SFN difference/subframe difference from the message of having carried SFN difference/subframe difference that UE replys;
Second acquisition unit, after the message that is used for the SFN that has carried adjacent sub-district that replys from UE or subframe was obtained the SFN of adjacent sub-district, the SFN by Serving cell calculated SFN difference/subframe difference;
The 3rd acquiring unit, be used for from adjacent sub-district under the mutual information in base station obtain the SFN or subframe of adjacent sub-district after, SFN or subframe by Serving cell calculate SFN difference/subframe difference.
In the enforcement, first acquiring unit can be further used for obtaining from the measurement report message that UE replys;
And/or second acquisition unit can be further used for obtaining from the measurement report message that UE replys.
In the enforcement, first acquiring unit and/or second acquisition unit can be further used for obtaining from the measurement report message that UE replys the SON-ANR process that initiate the base station;
And/or second acquisition unit can be further used for obtaining from the measurement report message that UE replys the SON-ANR process that initiate the base station.
In the enforcement, the 3rd acquiring unit can be further used for when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference, from adjacent sub-district under the base station undertaken obtaining the mutual information by S1 interface or X2 interface or OAM.
In the enforcement, can further include in the base station:
Sending module 1303, be used for will configuration the ABS of Serving cell send to UE.
In the enforcement, can further include in the base station:
And/or,
Figure 14 is the user device architecture schematic diagram, as shown in the figure, can comprise among the UE: first determination module and first sending module, and/or, second determination module and second sending module, wherein:
First sending module 1402 is used for sending to the base station of Serving cell ownership the SFN of adjacent sub-district;
In the enforcement, first sending module can also be further used for sending to the base station of Serving cell ownership by measurement report message the SFN of adjacent sub-district;
And/or second sending module further can also be used for sending to the base station of Serving cell ownership by measurement report message the SFN difference of Serving cell and adjacent sub-district.
In the enforcement, carry out in the SON-ANR process that first determination module can also be further used for initiating in the base station and obtain the SFN of adjacent sub-district from system information;
Carry out in the SON-ANR process that first sending module can also be further used for initiating in the base station and reply measurement report message;
Carry out in the SON-ANR process that second determination module can also be further used for initiating in the base station and obtain the SFN of adjacent sub-district from system information;
Carry out in the SON-ANR process that second sending module can also be further used for initiating in the base station and reply measurement report message.
Figure 15 is base station two structural representations, as shown in the figure, and as comprising in the base station under the adjacent sub-district:
In the enforcement, interactive module can also be further used for being undertaken alternately by S1 interface or X2 interface or OAM and other base stations.
As seen from the above-described embodiment, can also form the ABS treatment facility, perhaps form the ABS treatment facility, can certainly form the ABS treatment facility jointly by base station one, base station two, UE by base station one, base station two by base station one, UE.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
As seen from the above-described embodiment, in the technical scheme that the embodiment of the invention provides, obtain the SFN value between adjacent base station and calculate its difference; And when configuration ABS, consider the difference influence, thereby can dispose ABS cycle synchronisation between different base station.
Concrete, can use the ANR process of eating dishes without rice or wine, make UE can resolve the wherein SFN value of adjacent area;
Concrete, UE can subtract each other calculated difference with adjacent cell SFN and Serving cell SFN;
Further, UE sends to Serving cell with difference then, and Serving cell just can be used the ABS cycle of this difference and interactive interfacing and dispose, thereby can issue the ABS configuration of synchronization among base stations to UE;
Concrete, UE also can issue Serving cell with the adjacent cell SFN that parses, and Serving cell calculates self and adjacent cell SFN difference then, and the ABS cycle of using this difference and interactive interfacing dispose, the ABS that issues synchronization among base stations to UE disposes;
Concrete, also can use wired network reciprocal process, mutual adjacent base station/adjacent cell SFN value specifically can be used the S1/X2 interface or be come mutual by the OAM node;
Concrete, the base station can be calculated based on self and the difference of adjacent base station/adjacent cell SFN, and the ABS that issues synchronization among base stations to UE disposes;
Concrete, the Serving cell further user after obtaining the SFN deviation is considered this deviation on dispatching and measuring.
Concrete, the conversion of this SFN deviation can be carried out (use ANR obtains the base station at deviation UE place, the perhaps measured base station of this UE), the mistake of avoiding both sides all to convert and cause in any side that the deviation base station is arranged.
The technical scheme that provides by the embodiment of the invention, before the ABS configuration of carrying out, can obtain the SFN difference/subframe difference between the different base station, and when sending the ABS configuration to the UE under the different base station, take into full account SFN difference/subframe difference influence, guarantee that with this periodic ABS sub-frame configuration of network side can not be not corresponding synchronously because of the inconsistent of SFN number or subframe numbers, strengthened the accuracy of the employed ABS subframe of different base station time domain correspondence.
Referring to shown in Figure 16, the embodiment of the invention also provides a kind of base station, comprising: acquisition module 1601 and update module 1602.
First acquiring unit is used for obtaining SFN difference/subframe difference from the message of having carried SFN difference/subframe difference that UE replys;
Second acquisition unit, after the message that is used for the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE was obtained the SFN/ subframe numbers of adjacent sub-district, the SFN by Serving cell calculated SFN difference/subframe difference;
The 3rd acquiring unit, be used for from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
First acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys.
First acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys the SON-ANR process that initiate the base station.
The 3rd acquiring unit is further used for when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference, from adjacent sub-district under the base station undertaken obtaining the mutual information by S1 interface or X2 interface or OAM.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (34)
1. an accurate blank subframe ABS processing method is characterized in that, comprises the steps:
The base station obtains the Serving cell of user equipment (UE) and the system frame number SFN difference/subframe difference of adjacent sub-district;
The base station measure according to the ABS initial frame number configuration UE of SFN difference/subframe difference and ABS cycle, adjacent sub-district and the ABS of network scheduling so that the ABS configuration synchronization of Serving cell and adjacent sub-district.
2. the method for claim 1 is characterized in that, the base station obtains the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district, comprising:
From the message of having carried SFN difference/subframe difference that UE replys, obtain SFN difference/subframe difference;
Or, obtain the SFN/ subframe numbers of adjacent sub-district the message of the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE after, the SFN by Serving cell calculates SFN difference/subframe difference;
Or, from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
3. method as claimed in claim 2 is characterized in that, the message that UE replys is measurement report message.
4. method as claimed in claim 3 is characterized in that, the measurement report message that UE replys is to reply in the self-organizing network SON-Automatic Neighboring Relation ANR process that initiate the base station.
5. method as claimed in claim 2, it is characterized in that, the base station is undertaken mutual with the mutual information in the base station under the adjacent sub-district by S1 interface or X2 interface or Operations, Administration and Maintenance OAM when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference.
6. as the arbitrary described method of claim 1 to 5, it is characterized in that, further comprise:
The ABS of Serving cell of configuration is sent to UE.
7. method as claimed in claim 6 is characterized in that, further comprises:
Dispatch UE at Serving cell according to SFN difference/subframe difference the base station, and/or, according to SFN difference/subframe difference influence UE is measured configuration.
8. an ABS processing method is characterized in that, comprises the steps:
UE obtains the SFN/ subframe numbers of adjacent sub-district from adjacent system information of subdistricts, and UE sends the SFN/ subframe numbers of adjacent sub-district to the base station of Serving cell ownership;
And/or,
UE obtains the SFN/ subframe numbers of adjacent sub-district and obtains the SFN/ subframe numbers of Serving cell from the system information of Serving cell from adjacent system information of subdistricts, and UE sends the SFN difference/subframe difference of Serving cell and adjacent sub-district to the base station of Serving cell ownership.
9. method as claimed in claim 8 is characterized in that, UE sends the SFN/ subframe numbers of adjacent sub-district and/or the SFN of Serving cell and adjacent sub-district difference/subframe difference by measurement report message to the base station of Serving cell ownership.
10. method as claimed in claim 9 is characterized in that, UE obtains the SFN/ subframe numbers of adjacent sub-district from system information, and the measurement report message that UE replys is to carry out in the SON-ANR process that initiate the base station.
11. an ABS processing method is characterized in that, comprises the steps:
The SFN/ subframe numbers of each sub-district of subordinate is determined in the base station;
The base station when disposing with other base stations mutual ABS cycle, the SFN/ subframe numbers of mutual each sub-district of subordinate.
12. method as claimed in claim 11 is characterized in that, the base station is undertaken by S1 interface or X2 interface or OAM when the SFN of mutual each sub-district of subordinate alternately.
13. a base station is characterized in that, comprising:
Acquisition module is used to obtain the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district;
Configuration module, be used for according to the ABS initial frame number configuration UE of SFN difference/subframe difference and ABS cycle, adjacent sub-district measure and the ABS of network scheduling so that the ABS configuration synchronization of Serving cell and adjacent sub-district.
14. base station as claimed in claim 13 is characterized in that, acquisition module comprises with one of lower unit or its combination:
First acquiring unit is used for obtaining SFN difference/subframe difference from the message of having carried SFN difference/subframe difference that UE replys;
Second acquisition unit, after the message that is used for the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE was obtained the SFN/ subframe numbers of adjacent sub-district, the SFN by Serving cell calculated SFN difference/subframe difference;
The 3rd acquiring unit, be used for from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
15. base station as claimed in claim 14 is characterized in that, first acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys.
16. base station as claimed in claim 15 is characterized in that, first acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys the SON-ANR process that initiate the base station.
17. base station as claimed in claim 14, it is characterized in that, the 3rd acquiring unit is further used for when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference, from adjacent sub-district under the base station undertaken obtaining the mutual information by S1 interface or X2 interface or OAM.
18. as the arbitrary described base station of claim 13 to 17, it is characterized in that, further comprise:
Sending module, be used for will configuration the ABS of Serving cell send to UE.
19. base station as claimed in claim 18 is characterized in that, further comprises:
Scheduler module is used for UE being dispatched at Serving cell according to SFN difference/subframe difference;
And/or,
Measure configuration module, be used for UE being measured configuration according to SFN difference/subframe difference influence.
20. a subscriber equipment is characterized in that, comprising: first determination module and first sending module, and/or, second determination module and second sending module, wherein:
First determination module is used for obtaining from adjacent system information of subdistricts the SFN/ subframe numbers of adjacent sub-district;
First sending module is used for sending to the base station of Serving cell ownership the SFN/ subframe numbers of adjacent sub-district;
Second determination module is used for obtaining the SFN/ subframe numbers of adjacent sub-district and the SFN/ subframe numbers that obtains Serving cell from the system information of Serving cell from adjacent system information of subdistricts;
Second sending module is used for the SFN difference/subframe difference to the base station of Serving cell ownership transmission Serving cell and adjacent sub-district.
21. subscriber equipment as claimed in claim 20 is characterized in that, first sending module is further used for sending to the base station of Serving cell ownership by measurement report message the SFN/ subframe numbers of adjacent sub-district;
Second sending module is further used for sending to the base station of Serving cell ownership by measurement report message the SFN difference/subframe difference of Serving cell and adjacent sub-district.
22. subscriber equipment as claimed in claim 21 is characterized in that,
Carry out in the SON-ANR process that first determination module is further used for initiating in the base station and obtain the SFN/ subframe numbers of adjacent sub-district from system information;
Carry out in the SON-ANR process that first sending module is further used for initiating in the base station and reply measurement report message;
Carry out in the SON-ANR process that second determination module is further used for initiating in the base station and obtain the SFN/ subframe numbers of adjacent sub-district from system information;
Carry out in the SON-ANR process that second sending module is further used for initiating in the base station and reply measurement report message.
23. a base station is characterized in that, comprising:
Determination module is used for determining the SFN/ subframe numbers of each sub-district of subordinate;
Interactive module is used for when disposing with other base stations mutual ABS cycle, the SFN/ subframe numbers of mutual each sub-district of subordinate.
24. base station as claimed in claim 23 is characterized in that, interactive module is further used for being undertaken alternately by S1 interface or X2 interface or OAM and other base stations.
25. a method that realizes synchronization among base stations is characterized in that, comprises the steps:
The base station obtains the Serving cell of user equipment (UE) and the system frame number SFN difference/subframe difference of adjacent sub-district;
Self SFN number/subframe skew is upgraded according to SFN difference/subframe difference in the base station, finishes SFN/ synchronizing sub-frame between the base station.
26. method as claimed in claim 25 is characterized in that, the base station obtains the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district, comprising:
From the message of having carried SFN difference/subframe difference that UE replys, obtain SFN difference/subframe difference;
Or, obtain the SFN/ subframe numbers of adjacent sub-district the message of the SFN/ subframe numbers that has carried adjacent sub-district of replying from UE after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference;
Or, from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
27. method as claimed in claim 26 is characterized in that, the message that UE replys is measurement report message.
28. method as claimed in claim 27 is characterized in that, the measurement report message that UE replys is to reply in the self-organizing network SON-Automatic Neighboring Relation ANR process that initiate the base station.
29. method as claimed in claim 26, it is characterized in that, the base station is undertaken mutual with the mutual information in the base station under the adjacent sub-district by S1 interface or X2 interface or Operations, Administration and Maintenance OAM when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference.
30. a base station is characterized in that, comprising:
Acquisition module is used to obtain the Serving cell of UE and the SFN difference/subframe difference of adjacent sub-district;
Update module is used for according to SFN difference/subframe difference of obtaining, upgrades the SFN number/subframe skew of this sub-district, so that Serving cell and adjacent sub-district reach the SFN/ synchronizing sub-frame.
31. base station as claimed in claim 30 is characterized in that, acquisition module comprises with one of lower unit or its combination:
First acquiring unit is used for obtaining SFN difference/subframe difference from the message of having carried SFN difference/subframe difference that UE replys;
Second acquisition unit, after the message that is used for the SFN that has carried adjacent sub-district that replys from UE was obtained the SFN/ subframe numbers of adjacent sub-district, the SFN/ subframe numbers by Serving cell calculated SFN difference/subframe difference;
The 3rd acquiring unit, be used for from adjacent sub-district under the mutual information in base station obtain the SFN/ subframe numbers of adjacent sub-district after, the SFN/ subframe numbers by Serving cell calculates SFN difference/subframe difference.
32. base station as claimed in claim 31 is characterized in that, first acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys.
33. base station as claimed in claim 32 is characterized in that, first acquiring unit and/or second acquisition unit are further used for obtaining from the measurement report message that UE replys the SON-ANR process that initiate the base station.
34. base station as claimed in claim 31, it is characterized in that, the 3rd acquiring unit is further used for when obtaining the SFN difference of Serving cell and adjacent sub-district/subframe difference, from adjacent sub-district under the base station undertaken obtaining the mutual information by S1 interface or X2 interface or OAM.
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| CN2011100840119A CN102136863A (en) | 2010-12-28 | 2011-04-02 | Method and device for realizing almost blank subframe processing and synchronization between base stations |
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| CN201010611508.7 | 2010-12-28 | ||
| CN201010611508 | 2010-12-28 | ||
| CN2011100840119A CN102136863A (en) | 2010-12-28 | 2011-04-02 | Method and device for realizing almost blank subframe processing and synchronization between base stations |
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