CN102098739B - Method for increasing utilization ratio of resources, home base station, macro base station and system - Google Patents
Method for increasing utilization ratio of resources, home base station, macro base station and system Download PDFInfo
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Abstract
The invention provides a method for increasing the utilization ratio of resources, comprising the following steps that: a home base station is connected with a macro base station through an X2 interface; the home base station respectively selects corresponding ABS (Almost Blank Subframe) patterns from a first ABS pattern set and a second ABS pattern set according to the resource utilization condition of UE (User Equipment) of the home base station and sends the selected patterns to the macro base station; the macro base station determines the ABS pattern per se according to a received pattern index, and when determining that macro UE in an RRC (Radio Resource Control) connection status is nearby the home base station, the macro base station allocates the ABS pattern in the first ABS pattern set per se to a CQI (Channel Quality Indicator) of the macro UE for measuring and allocates the ABS pattern in the second ABS pattern set to the RLM (Radio Link Management) and the RRM (Radio Resource Management) of the macro UE for measuring. Based on the same ideal, the invention also provides a macro base station, a home base station and a system, and therefore, the utilization ratio of resources of the home base station is increased.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of method, Home eNodeB, macro base station and system that improves resource utilization.
Background technology
Home eNodeB be a kind of low-power, low cost, easy to operate, for user oneself buy, the small-sized honeycomb mobile communication base station of own installation, be mainly used in home network, also can carry out in enterprise, colleges and universities and public hot spot area the small area network covering.Home eNodeB is connected with user's wired broadband network, when the user using some data service, when accessing such as Internet, can directly pass through wired broadband network, and not need through cellular core network.
The coverage of Home eNodeB generally is limited, only serves specific user, has a lot of Home eNodeB below the macro base station.Home eNodeB is supported 3 kinds of mode of operations:
1, closed user group (CSG) pattern: only have specific contracted user, namely CSG user could access this Home eNodeB, and other users can not access.This pattern generally is used for the family networking, and the access control mechanisms under the CSG pattern can significantly promote the impression that the user uses this Home eNodeB.
2, mix (Hybrid) pattern: all users can access this Home eNodeB, but specific contracted user has preferential access right.This pattern is mainly used in the scenes such as enterprise, market.
3, open (Open) pattern: all users can access this Home eNodeB, and the user does not have dividing of priority.
When the family base station support be the CSG pattern time, because the CSG base station only allows specific contracted user's access, therefore when the UE that can not access CSG is in the coverage of CSG, it can only be connected to macro base station and carry out data communication, namely be called grand subscriber equipment (UE), and because macrocellular and Home eNodeB use same frequency, the CSG Home eNodeB can form stronger interference to grand UE.
UE communication mode under the following concrete example explanation CSG pattern, referring to Fig. 1, Fig. 1 is UE communication mode schematic diagram under the CSG pattern.Among Fig. 1, CSG has installed at its family in A family, be called Home eNodeB A101, only allow user's access of A family, when friend B access A family, its UE can only be linked into macrocell, is called grand UE B102, because macro base station 103 and Home eNodeB A101 use same frequency, so Home eNodeB A101 can form stronger interference to the grand UE B102 that is in Radio Resource control (RRC) connection status.
CSG Home eNodeB to above-mentioned existence in the prior art can adopt following method to solve to the more strongly disturbing problem of grand UE formation:
In Long Term Evolution (LTE) system, according near blank subframe (ABS) pattern arrangement ABS subframe, OAM notifies this information to macro base station to Operations, Administration and Maintenance (OAM) equipment simultaneously with the some descending sub frames in the Home eNodeB; Macro base station is for being in the ABS pattern of the contiguous Home eNodeB of grand UE configuration of connection status near Home eNodeB with macro base station; The grand UE of configuration ABS pattern only measures macro base station on the corresponding macro base station subframe of ABS subframe, measures such as Radio Link Detection (RLM) measurement, channel quality indication (CQI) measurement, RRM (RRM); If grand UE does not dispose the pattern of the contiguous Home eNodeB of ABS, then grand UE can measure macro base station on all subframes.
As above in the configuration, macro base station only can be dispatched the grand UE of configuration ABS pattern on the corresponding macro base station ABS of Home eNodeB ABS subframe subframe; And Home eNodeB only can be with Home eNodeB UE scheduling on the non-ABS subframe of Home eNodeB.Like this, stagger by temporal, thereby avoided Home eNodeB and macro base station to the interference of the grand UE that is in the RRC connected state.
Following concrete example explanation, macro base station are in the ABS pattern of the contiguous Home eNodeB of grand UE configuration of connection status for close Home eNodeB and macro base station.Referring to Fig. 2, Fig. 2 is that prior art solves interference problem configuration ABS pattern schematic diagram.Shown in Fig. 2, the duration of a radio frames is 10ms, comprises 10 subframes, and each subframe is 1ms.
Wherein, ABS subframe (" Almost blank " subframe) only contains the subframe of limited information.Not all downlink radio frame must be the ABS subframe with some sub-frame configuration all, depends on concrete ABS configuration pattern.Such as Home eNodeB pattern among Fig. 2, being about to be numbered the 1st, 4 sub-frame configuration is the ABS subframe.
Among Fig. 2, the left diagonal line hatches of Home eNodeB radio frames partly represents to contain the frame of ABS subframe, and blank parts represents not contain the frame of ABS subframe.The subframe of the right diagonal line hatches part of Home eNodeB pattern represents the ABS subframe, and the subframe of blank parts represents common subframe.
In the same radio frames, the subframe numbering of the subframe of macro base station numbering and Home eNodeB might be different, and the ABS subframe numbering in the Home eNodeB may be 1 and 4, and corresponding macro base station subframe is numbered 2 and 5;
Macro base station notifies the subframe numbering of the macro base station of grand UE to should be the subframe numbering (as: 2,5) of the corresponding macro base station of Home eNodeB ABS subframe.
Home eNodeB ABS pattern in the existing scheme is determined by OAM and the notice Home eNodeB is configured, the less ABS pattern that reconfigures of OAM, and this just causes following problem:
1, OAM is that Home eNodeB has disposed the ABS pattern, do not communicate but have in the coverage that grand UE is in Home eNodeB, it is less perhaps to be in the resource that the grand UE in the Home eNodeB coverage takies, and the UE of Home eNodeB can not use the resource of ABS pattern, thereby in the more situation of the shared resource of the waste, especially the ABS pattern that have caused ABS pattern resource.
2, OAM is that the resource of ABS pattern of Home eNodeB configuration is less, perhaps not configuration, but having more grand UE to be in the coverage of Home eNodeB communicates, and the UE of Home eNodeB seldom uses or there is no the use state that is in simultaneously, at this moment, grand UE can not get timely resource, but not the resource of ABS pattern then is wasted.
In sum, when prior art solution CSG Home eNodeB forms than the strong jamming problem to grand UE, for Home eNodeB static configuration ABS pattern, inadequate resource or the wasting of resources will be caused, the resource utilization of Home eNodeB can not be improved.
Summary of the invention
In view of this, main purpose of the present invention provides a kind of method that improves resource utilization, improves the Home eNodeB resource utilization.The method is applied under the closed subscriber group (CSG) pattern, comprising: connect by X2 interface between Home eNodeB and the macro base station;
Home eNodeB is according to Home eNodeB user equipment (UE) resource operating position, from ABS pattern set and the set of the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the index of the ABS pattern selected is sent to macro base station by X2 interface;
Macro base station is received the ABS pattern index that Home eNodeB is sent, and determines macro base station the one ABS pattern set and macro base station the 2nd ABS pattern ABS pattern in gathering according to ABS pattern index;
The grand UE that determines to be in the radio resource control RRC connection status when macro base station is near described Home eNodeB the time, and macro base station measures to the communication quality indication CQI of described grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to Radio Link monitoring RLM and the RRM RRM of grand UE ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of macro base station configuration to be measured; To be near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
Wherein, the described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from an ABS pattern is gathered.
Comprise by the X2 interface connection between described Home eNodeB and the macro base station: will directly connect by X2 interface between Home eNodeB and the macro base station, or Home eNodeB directly is connected by X2 interface through between femto gateway and the macro base station, between femto gateway and core net, be connected by the S1 interface respectively between macro base station and core net.
Described ABS pattern set and the set of the 2nd ABS pattern are two ABS pattern set of constructing in advance;
Described two ABS patterns set all comprises multiple ABS pattern, and the difference between every kind of ABS pattern is to comprise the difference of ABS number of subframes;
ABS pattern in the described ABS pattern set is used for the ABS pattern arrangement of Home eNodeB, and the channel quality indicator (CQI) measurement that is used for grand UE;
ABS pattern in described the 2nd ABS pattern set, the Radio Link Detection RRM and the RRM RLM that are used for grand UE measure.
Described macro base station determines that according to ABS pattern index the method for the ABS pattern in the set of macro base station the one ABS pattern and the set of the 2nd ABS pattern is: described macro base station is according to ABS pattern index, determine the ABS pattern of described Home eNodeB, determine the macro base station one ABS pattern set corresponding with described Home eNodeB ABS pattern and the ABS pattern in the set of the 2nd ABS pattern according to the ABS pattern of Home eNodeB again.
When described Home eNodeB sends to macro base station with the index of the ABS pattern selected, further comprise: described Home eNodeB according to from ABS pattern set, select with the corresponding ABS pattern of resource utilization, dispose corresponding ABS subframe, Home eNodeB UE is dispatched on non-ABS subframe.
The ABS pattern that described Home eNodeB is selected from ABS pattern set and the set of the 2nd ABS pattern is that macro base station is recommended.
Described recommendation comprises: when the indicated ABS sub-frame resources of the ABS pattern of macro base station judgement Home eNodeB configuration is not enough, from ABS pattern set and the set of the 2nd ABS pattern, select and the corresponding ABS pattern of grand UE resource operating position respectively, Home eNodeB recommended in the index of the ABS pattern selected.
Described recommendation further comprises: Home eNodeB determines whether to accept the recommendation of macro base station according to Home eNodeB UE resource operating position, if so, accepts recommendation information to the macro base station feedback, and is configured according to the ABS pattern of recommending; Otherwise, accept recommendation information to macro base station feedback refusal, be configured according to the ABS pattern of self selecting.
Another main purpose of the present invention provides a kind of Home eNodeB that improves resource utilization, improves the Home eNodeB resource utilization.This Home eNodeB is applied under the closed subscriber group (CSG) pattern, comprising: ABS pattern determination module, ABS pattern arrangement module and sending module;
Described ABS pattern determination module, link to each other with described sending module with described ABS pattern arrangement module, be used for the operating position according to Home eNodeB UE resource, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described sending module, will send to described ABS pattern arrangement module from the ABS pattern that ABS pattern set is selected; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set;
Described ABS pattern arrangement module is used for gathering the ABS pattern of selecting according to what described ABS pattern selection module was sent from an ABS pattern, disposes corresponding ABS subframe, and Home eNodeB UE is dispatched on non-ABS subframe;
Described sending module, the ABS pattern index that described ABS pattern determination module is sent is transmitted to described macro base station.
Wherein, this Home eNodeB further comprises: receiver module;
Described receiver module links to each other with described ABS pattern determination module, is used for receiving the index of the recommendation ABS pattern that described macro base station sends, and is transmitted to described ABS pattern determination module;
Described ABS pattern determination module is further used for, receive the index of the ABS pattern that described receiver module sends, determine whether to accept this recommendation according to Home eNodeB UE resource operating position, if, accept recommendation information to described sending module transmission, otherwise, send refusal to described sending module and accept recommendation information;
Described sending module is further used for, and the acceptance that described ABS pattern determination module is sent or refusal are accepted message and be transmitted to described macro base station.
Another main purpose of the present invention provides a kind of macro base station that improves resource utilization, improves resource utilization, and this macro base station comprises: receiver module, ABS pattern determination module and ABS pattern arrangement module;
Described receiver module links to each other with described ABS pattern determination module, receives the ABS pattern index that Home eNodeB is sent, and is transmitted to described ABS pattern determination module;
Described ABS pattern determination module, link to each other with described ABS pattern arrangement module, receive the ABS pattern index that described receiver module is sent, determine macro base station the one ABS pattern set and macro base station the 2nd ABS pattern ABS pattern in gathering according to this ABS pattern index; When the grand UE that is in the RRC connection status with this macro base station was near described Home eNodeB, the ABS pattern during macro base station the one ABS pattern set determined and macro base station the 2nd ABS pattern gathered sent to described ABS pattern arrangement module; Describedly determine that according to ABS pattern index the ABS pattern in macro base station the 2nd ABS pattern set is the subset of ABS pattern in the set of macro base station the one ABS pattern;
Described ABS pattern arrangement module receives the ABS pattern that described ABS pattern determination module is sent, and measures to the CQI of grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to the RLM of grand UE and RRM ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of described ABS pattern arrangement block configuration to be measured; To be near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
Described ABS pattern arrangement module comprises: grand UE position determination module;
Described grand UE position determination module, be used for to determine and this macro base station is in the grand UE of RRC connection status whether near described Home eNodeB, if so, definite macro base station the one ABS pattern set and the ABS pattern in the set of macro base station the 2nd ABS pattern are sent to described ABS pattern arrangement module; Otherwise, do not send the ABS pattern to described ABS pattern arrangement module.
Wherein, this macro base station further comprises: sending module;
Described ABS pattern determination module is further used for, according to being in the grand UE resource operating position of RRC connection status with described macro base station, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described sending module;
Described sending module with receiving the ABS pattern index of sending from described ABS pattern determination module, is transmitted to described Home eNodeB;
Described receiver module is further used for, and receives acceptance that described Home eNodeB sends or refusal and accepts the ABS pattern message of recommending.
Another main purpose of the present invention provides a kind of system that improves resource utilization, improves the Home eNodeB resource utilization.This system applies comprises under the closed subscriber group (CSG) pattern: Home eNodeB and macro base station;
Described Home eNodeB, link to each other with described macro base station, be used for according to Home eNodeB UE resource operating position, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, and the ABS pattern index of selecting is sent to macro base station by X2 interface; Simultaneously described Home eNodeB according to from ABS pattern set, select with the corresponding ABS pattern of resource utilization, dispose corresponding ABS subframe, with Home eNodeB UE scheduling on non-ABS subframe; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set;
Described macro base station, the ABS pattern index that is used for sending according to described Home eNodeB are determined, the ABS pattern in the set of macro base station the one ABS pattern and the set of macro base station the 2nd ABS pattern;
The grand UE that determines to be in the RRC connection status when described macro base station is near described Home eNodeB the time, and described macro base station measures to the CQI of described grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to the RLM of grand UE and RRM ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of macro base station configuration to be measured; To be in simultaneously near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
Described macro base station is further used for, according to being in the grand UE resource operating position of RRC connection status with described macro base station, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described Home eNodeB; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set;
Described Home eNodeB is further used for, receive the ABS pattern index that described macro base station is sent, according to Home eNodeB UE resource operating position, determine whether to accept the ABS pattern that described macro base station is recommended, if, accept recommendation information to described macro base station feedback, and be configured according to the ABS pattern of recommending; Otherwise, accept recommendation information to described macro base station feedback refusal, be configured according to the ABS pattern of self selecting.
Therefore, the present invention utilizes situation and Home eNodeB UE to the operating position of resource by the indicated ABS sub-frame resources of ABS pattern of Home eNodeB configuration, make Home eNodeB dynamically adjust the ABS pattern, when having solved the CSG Home eNodeB and form than the strong jamming problem to grand UE, improved the resource utilization of Home eNodeB.
Description of drawings
Fig. 1 is UE communication mode schematic diagram under the CSG pattern;
Fig. 2 is that prior art solves interference problem configuration ABS pattern schematic diagram;
Fig. 3 is the network architecture schematic diagram of present LTE;
Fig. 4 is the schematic diagram of specific embodiment of the invention ABS pattern set;
Fig. 5 is the flow chart that the present invention disposes the ABS pattern;
Fig. 6 is that macro base station of the present invention is recommended ABS pattern flow chart to Home eNodeB;
Fig. 7 improves the resource utilization system construction drawing in the embodiment of the invention;
Fig. 8 is the structure chart that improves the Home eNodeB of resource utilization in the embodiment of the invention;
Fig. 9 is the macro base station structure chart that improves resource utilization in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
The Home eNodeB of mentioning among the present invention all refers to CSG; The grand UE that mentions refers to be in the grand UE of RRC connection status.
Referring to Fig. 3, Fig. 3 is the network architecture schematic diagram of present LTE.Among Fig. 3, macro base station (eNB) is connected to core net (MME/S-GW) by the S1 interface, be connected to each other together by X2 interface between the macro base station, do not have X2 interface between the Home eNodeB (HeNB), the mode that is connected to core net has two kinds: be directly connected to core net (MME/S-GW) by the S1 interface; Be connected to femto gateway (HeNB GW) by the S1 interface, femto gateway is connected to core net (MME/S-GW) by the S1 interface again.
Along with the standardized iterative method of Home eNodeB, be to introduce X2 interface between Home eNodeB and the macro base station in future, two kinds of introducing modes are arranged:
1, directly couples together by X2 interface between macro base station (eNB) and the Home eNodeB (HeNB);
2, directly couple together by X2 interface between the Home eNodeB under macro base station and the femto gateway (HeNB GW).
Basic thought of the present invention is, when after introducing X2 interface between Home eNodeB and the macro base station, do not rely on the configuration of OAM, can adjust by dynamic coordinate the ABS pattern arrangement of Home eNodeB between Home eNodeB and the macro base station, improve the utilance of Home eNodeB resource.
Two ABS pattern set of structure are referred to as ABS pattern set and the set of the 2nd ABS pattern among the present invention, and an ABS pattern set share the configuration in the ABS of Home eNodeB, and the CQI that is used for simultaneously grand UE measures.The set of the 2nd ABS pattern, the RRM that is used for grand UE measures and the RLM measurement.Each ABS pattern set comprises several ABS pattern, the ABS subframe that the ABS pattern that has comprises more (such as pattern among Fig. 4 A.2), the ABS subframe that the ABS pattern that has comprises less (such as pattern among Fig. 4 B.1) does not perhaps comprise ABS subframe (such as pattern among Fig. 4 A.0 and B.0) fully.
Because dynamic coordinate configuration ABS pattern of the present invention, configuration frequency is relatively very fast, but RLM measures and the RRM measurement need to be done average in a long time, require for the ABS pattern of measuring relatively stable, when therefore the present invention selects pattern, the ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set, because this subset relation, the ABS change in pattern of selecting the ABS pattern relatively to select from ABS pattern set from the set of the 2nd ABS pattern is relatively less, the ABS pattern of namely selecting is relatively stable, satisfies RLM measurement and RRM and measures.
Home eNodeB selects a kind of ABS pattern to carry out the ABS configuration from ABS pattern set, simultaneously, Home eNodeB is selected a kind of ABS pattern from the 2nd ABS pattern is gathered, guarantee that the ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set.Then, Home eNodeB will all be notified to macro base station by the index of two kinds of patterns of selection from ABS pattern set and the set of the 2nd ABS pattern.
The below lifts specific embodiment, describes ABS pattern arrangement process in detail, for convenience, an ABS pattern set is collectively referred to as ABS pattern set A, and the 2nd ABS pattern set is collectively referred to as ABS pattern set B.
Referring to Fig. 4, Fig. 4 is the schematic diagram of specific embodiment of the invention ABS pattern set.The below specifies Home eNodeB option and installment ABS pattern process as an example of Fig. 4 example.
Comprise pattern A.0, A.1 and A.2 in the ABS pattern set A among Fig. 4, comprise in the ABS pattern set B that pattern B.0, B.1 and B.2.Here the assignment period of supposing the ABS pattern is 20ms, i.e. two wireless frame period, if 4 radio frames 1 are arranged, 2,3,4, then the ABS sub-frame configuration situation in the radio frames 3 is identical with ABS sub-frame configuration situation in the radio frames 1, and the ABS sub-frame configuration situation in the radio frames 4 is identical with ABS sub-frame configuration situation in the radio frames 2.
A.1 Home eNodeB selects pattern from the pattern set A, and its corresponding the 1st radio frames is numbered 2,8 subframe, and the 2nd radio frames is numbered 1,5,8 subframe and is set to the ABS subframe, then from the pattern set B, select again a pattern, and the ABS pattern of selecting from the pattern set B is the subset of the ABS pattern selected from ABS pattern set A, therefore from the pattern set B, select pattern B.1 as shown in Figure 4, its the 1st radio frames is numbered 8 subframe, and the 2nd wireless sub-frame is numbered 8 subframe and is set to the ABS subframe.
Referring to Fig. 5, Fig. 5 is the flow chart that the present invention disposes the ABS pattern.Its concrete steps are:
Home eNodeB is respectively selected an ABS pattern A.X and B.Y from ABS pattern set A, B, guarantee that the ABS pattern B.Y that selects from the pattern set B is the subset of the ABS pattern A.X that selects from ABS pattern set A.
In the corresponding ABS subframe of Home eNodeB configuration, Home eNodeB only can be with Home eNodeB UE scheduling on non-ABS subframe according to the ABS pattern A.X that selects in the ABS pattern set A.
Macro base station informed in two kinds of ABS pattern A.X that step 502, Home eNodeB will be selected and the B.Y index in A set and B gather.
Home eNodeB can not informed macro base station with the specifying information of ABS pattern, only informs that the index of the ABS pattern that the macro base station Home eNodeB is selected gets final product.Wherein, index refers to select the numbering of pattern in the set of corresponding A BS pattern, such as the A.X in the present embodiment and B.Y.
The user can or conveniently arrange the index of ABS pattern according to custom, such as 00,11 etc.
After step 503, macro base station are received the index of two kinds of ABS patterns that Home eNodeB is sent, determine the ABS pattern of Home eNodeB according to index, and and then determine macro base station subframe pattern MA.X and the MB.Y corresponding with these two kinds of ABS patterns.
When grand UE that macro base station determines to be in the RRC connection status is near the Home eNodeB, macro base station will be therewith the CQI that disposes to this grand UE of the relevant macro base station ABS pattern MA.X of ABS pattern of Home eNodeB measure, the macro base station therewith RLM and the RRM that dispose to this grand UE of the relevant macro base station ABS pattern MA.Y of ABS pattern of Home eNodeB is measured.
Macro base station only can be with this grand UE scheduling on the indicated ABS subframe of the relevant macro base station ABS pattern MA.X of the ABS pattern of Home eNodeB therewith.
Configuration mode is as follows: macro base station is measured by the CQI that dedicated signaling reconfigures this grand UE, comprises the MA.X pattern in this dedicated signaling; Macro base station is measured by the RLM that dedicated signaling reconfigures this grand UE, comprises the MB.Y pattern in this dedicated signaling; Macro base station is measured by the RRM that dedicated signaling reconfigures this grand UE, comprises the MB.Y pattern in this dedicated signaling.
Wherein, different ABS patterns may be used in the different home base station; So " this " Home eNodeB here refers to the contiguous Home eNodeB of grand UE.Grand UE does not also know that pattern set closes A and B, thus concrete pattern should be notified to grand UE, rather than the index of pattern.
Step 505 when grand UE receives the signaling of reshuffling of measurement, and when finding to comprise measured pattern in this signaling, is only carried out in the indicated ABS subframe of measured pattern and is measured.
When grand UE receives the signaling of reshuffling that CQI measures, and when finding to comprise measured pattern in this signaling, only carry out CQI in the indicated ABS subframe of measured pattern and measure; When grand UE receives the signaling of reshuffling that RLM measures, and when finding to comprise measured pattern in this signaling, only carry out RLM in the indicated ABS subframe of measured pattern and measure; When grand UE receives the signaling of reshuffling that RRM measures, and when finding to comprise measured pattern in this signaling, a RRM who only carries out for macro base station in the indicated subframe of measured pattern measures.
When the indicated ABS sub-frame resources of the ABS pattern of macro base station judgement Home eNodeB configuration is not enough, such as, the quantity that is near the grand UE of this Home eNodeB is too much, perhaps transmission rate is excessive, and it can select to recommend Home eNodeB with grand UE resource operating position corresponding ABS pattern NA.X and NB.Y in ABS pattern set A and B.
Referring to Fig. 6, Fig. 6 is that macro base station of the present invention is recommended ABS pattern flow chart to Home eNodeB.Its concrete steps are:
The condition that the ABS pattern that macro base station is selected from ABS pattern set B should satisfy is the subset of the ABS pattern selected from ABS pattern set A.
In this step, carry out ABS pattern arrangement process and carry out to step 505 by step 502 among Fig. 5.
In this step, the new ABS pattern that Home eNodeB is recommended with non-macro base station is configured, and layoutprocedure press among Fig. 5 step 501 to step 505 execution.
Step 607 finishes.
When ABS pattern that macro base station recommends is accepted in the family base station, during the new ABS pattern arrangement of the another one that perhaps adopts non-macro base station to recommend, change its ABS pattern arrangement, subsequent operation repeats no more here as described in the above-mentioned configuration ABS pattern.
Based on the design same with said method, the invention allows for a kind of raising Home eNodeB resource utilization system.Referring to Fig. 7, Fig. 7 improves the resource utilization system construction drawing in the embodiment of the invention.System as described in Figure 7 comprises: Home eNodeB 710 and macro base station 720.
Wherein, Home eNodeB 710, link to each other with macro base station 720, be used for according to Home eNodeB UE resource operating position, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, and the ABS pattern index of selecting is sent to macro base station by X2 interface.Simultaneously Home eNodeB 710 according to from ABS pattern set, select with the corresponding ABS pattern of resource utilization, dispose corresponding ABS subframe, with Home eNodeB UE scheduling on non-ABS subframe; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set.
The grand UE that determines to be in the RRC connection status when macro base station 720 is near described Home eNodeB the time, and macro base station 720 measures to the CQI of described grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to the RLM of grand UE and RRM ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of macro base station configuration to be measured.To be in simultaneously near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
Referring to Fig. 8, Fig. 8 is the Home eNodeB structure chart that improves resource utilization in the embodiment of the invention, the i.e. structural representation of Home eNodeB 710 among Fig. 7.As shown in Figure 8, this Home eNodeB 710 comprises: ABS pattern determination module 711, ABS pattern arrangement module 712 and sending module 713.
Wherein, ABS pattern determination module 711, link to each other with sending module 713 with ABS pattern arrangement module 712, be used for the operating position according to Home eNodeB UE resource, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to sending module 713, will send to ABS pattern arrangement module 712 from the ABS pattern that ABS pattern set is selected; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set.。
ABS pattern arrangement module 712 is used for gathering the ABS pattern of selecting according to what ABS pattern selection module 711 was sent from an ABS pattern, disposes corresponding ABS subframe, and Home eNodeB UE is dispatched on non-ABS subframe.
Sending module 713, the ABS pattern index that ABS pattern determination module 711 is sent is transmitted to macro base station 720.
Above-mentioned Home eNodeB further comprises: receiver module 714.
ABS pattern determination module 711 is further used for, receive the index of the ABS pattern that receiver module 714 is sent, determine whether to accept this recommendation according to Home eNodeB UE resource operating position, if, accept recommendation information to sending module 713 transmissions, otherwise, send refusal to sending module 713 and accept recommendation information.
Sending module 713 is further used for, and receives that acceptance that ABS pattern determination module 711 is sent or refusal accept message and be transmitted to macro base station 720.
Referring to Fig. 9, Fig. 9 is the macro base station structure chart that improves resource utilization in the embodiment of the invention, the i.e. structural representation of macro base station 720 among Fig. 7.As shown in Figure 9, this macro base station 720 comprises receiver module 721, ABS pattern determination module 722 and ABS pattern arrangement module 723.
Wherein, receiver module 721 links to each other with ABS pattern determination module 722, receives the ABS pattern index that Home eNodeB 710 is sent, and is transmitted to ABS pattern determination module 722.
ABS pattern determination module 722 links to each other with ABS pattern arrangement module 723, receives the ABS pattern index that receiver module 721 is sent, and determines macro base station the one ABS pattern set and macro base station the 2nd ABS pattern ABS pattern in gathering according to this ABS pattern index.When the grand UE that is in the RRC connection status with macro base station 720 was near Home eNodeB 710, the ABS pattern during macro base station the one ABS pattern set determined and macro base station the 2nd ABS pattern gathered sent to ABS pattern arrangement module 723.
ABS pattern determination module 722 comprises grand UE position determination module 725.
UE position determination module 725, be used for to determine and this macro base station is in the grand UE of RRC connection status whether near described Home eNodeB, if so, definite macro base station the one ABS pattern set and the ABS pattern in the set of macro base station the 2nd ABS pattern are sent to described ABS pattern arrangement module; Otherwise, do not send the ABS pattern to ABS pattern arrangement module 723.
ABS pattern arrangement module 723 receives the ABS pattern that ABS pattern determination module 722 is sent, and measures to the CQI of grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to the RLM of grand UE and RRM ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of ABS pattern arrangement module 723 configurations to be measured.
Above-mentioned macro base station 720 further comprises: sending module 724.
ABS pattern determination module 722 is further used for, according to being in the grand UE resource operating position of RRC connection status with macro base station 720, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to sending module 724; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set.。
Sending module 724 with receiving the ABS pattern index of sending from ABS pattern determination module 722, is transmitted to Home eNodeB 710.
Receiver module 721 is further used for, and the acceptance that reception Home eNodeB 710 is sent or refusal are accepted the ABS pattern message of recommendation.
In sum, the present invention makes Home eNodeB dynamically adjust its ABS pattern, and do not rely on the configuration of OAM, according to the quantity of grand UE and the resource that transmission rate is dynamically utilized Home eNodeB in the load of Home eNodeB and the coverage, improved the resource utilization of Home eNodeB.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (16)
1. a method that improves resource utilization is applied under the closed subscriber group (CSG) pattern of Home eNodeB, it is characterized in that, connects by X2 interface between Home eNodeB and the macro base station, and the method comprises:
Home eNodeB is according to Home eNodeB user equipment (UE) resource operating position, respectively from first near selecting and the corresponding ABS pattern of resource utilization blank subframe ABS pattern set and the set of the 2nd ABS pattern, the index of the ABS pattern selected is sent to macro base station by X2 interface; Wherein, a described ABS pattern set share the configuration in the ABS of Home eNodeB, and measures for the CQI of grand UE, described the 2nd ABS pattern set, and the RRM that is used for grand UE measures and the RLM measurement;
Macro base station is received the ABS pattern index that Home eNodeB is sent, and determines macro base station the one ABS pattern set and macro base station the 2nd ABS pattern ABS pattern in gathering according to ABS pattern index;
The grand UE that determines to be in the radio resource control RRC connection status when macro base station is near described Home eNodeB the time, and macro base station measures to the communication quality indication CQI of described grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to Radio Link monitoring RLM and the RRM RRM of grand UE ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of macro base station configuration to be measured; To be near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
2. method according to claim 1 is characterized in that, the described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set.
3. method according to claim 1 and 2, it is characterized in that, comprise by the X2 interface connection between described Home eNodeB and the macro base station: will directly connect by X2 interface between Home eNodeB and the macro base station, or Home eNodeB directly is connected by X2 interface through between femto gateway and the macro base station, between femto gateway and core net, be connected by the S1 interface respectively between macro base station and core net.
4. method according to claim 1 and 2 is characterized in that, described ABS pattern set and the set of the 2nd ABS pattern are two ABS pattern set of constructing in advance;
Described two ABS patterns set all comprises multiple ABS pattern, and the difference between every kind of ABS pattern is to comprise the difference of ABS number of subframes;
ABS pattern in the described ABS pattern set is used for the ABS pattern arrangement of Home eNodeB, and the CQI measurement that is used for grand UE;
ABS pattern in described the 2nd ABS pattern set, the RRM and the RLM that are used for grand UE measure.
5. method according to claim 1 and 2, it is characterized in that, described macro base station determines that according to ABS pattern index the method for the ABS pattern in the set of macro base station the one ABS pattern and the set of the 2nd ABS pattern is: described macro base station is according to ABS pattern index, determine the ABS pattern of described Home eNodeB, determine the macro base station one ABS pattern set corresponding with described Home eNodeB ABS pattern and the ABS pattern in the set of the 2nd ABS pattern according to the ABS pattern of Home eNodeB again.
6. method according to claim 1 and 2, it is characterized in that, when described Home eNodeB sends to macro base station with the index of the ABS pattern selected, further comprise: described Home eNodeB according to from ABS pattern set, select with the corresponding ABS pattern of resource utilization, dispose corresponding ABS subframe, Home eNodeB UE is dispatched on non-ABS subframe.
7. method according to claim 1 and 2 is characterized in that, the ABS pattern that described Home eNodeB is selected from ABS pattern set and the set of the 2nd ABS pattern is that macro base station is recommended.
8. method according to claim 7, it is characterized in that, described recommendation comprises: when macro base station is not enough according to the indicated ABS sub-frame resources of the ABS pattern of the resource operating position judgement Home eNodeB configuration of the grand UE of close Home eNodeB, from ABS pattern set and the set of the 2nd ABS pattern, select and the corresponding ABS pattern of grand UE resource operating position respectively, Home eNodeB recommended in the index of the ABS pattern selected.
9. method according to claim 8, it is characterized in that described recommendation further comprises: Home eNodeB determines whether to accept the recommendation of macro base station according to Home eNodeB UE resource operating position, if, accept recommendation information to the macro base station feedback, and be configured according to the ABS pattern of recommending; Otherwise, accept recommendation information to macro base station feedback refusal, be configured according to the ABS pattern of self selecting.
10. a Home eNodeB that improves resource utilization is applied under the closed subscriber group (CSG) pattern, it is characterized in that, this Home eNodeB comprises: near blank subframe ABS pattern determination module, ABS pattern arrangement module and sending module;
Described ABS pattern determination module, link to each other with described sending module with described ABS pattern arrangement module, be used for the operating position according to Home eNodeB UE resource, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described sending module, will send to described ABS pattern arrangement module from the ABS pattern that ABS pattern set is selected; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set; Wherein, a described ABS pattern set share the configuration in the ABS of Home eNodeB, and measures for the CQI of grand UE, described the 2nd ABS pattern set, and the RRM that is used for grand UE measures and the RLM measurement;
Described ABS pattern arrangement module is used for gathering the ABS pattern of selecting according to what described ABS pattern selection module was sent from an ABS pattern, disposes corresponding ABS subframe, and Home eNodeB UE is dispatched on non-ABS subframe;
Described sending module, the ABS pattern index that described ABS pattern determination module is sent is transmitted to described macro base station.
11. Home eNodeB according to claim 10 is characterized in that, this Home eNodeB further comprises: receiver module;
Described receiver module links to each other with described ABS pattern determination module, is used for receiving the index of the recommendation ABS pattern that described macro base station sends, and is transmitted to described ABS pattern determination module;
Described ABS pattern determination module is further used for, receive the index of the ABS pattern that described receiver module sends, determine whether to accept this recommendation according to Home eNodeB UE resource operating position, if, accept recommendation information to described sending module transmission, otherwise, send refusal to described sending module and accept recommendation information;
Described sending module is further used for, and the acceptance that described ABS pattern determination module is sent or refusal are accepted message and be transmitted to described macro base station.
12. a macro base station that improves resource utilization is characterized in that, this macro base station comprises: receiver module, near blank subframe ABS pattern determination module and ABS pattern arrangement module;
Described receiver module, link to each other with described ABS pattern determination module, receive the ABS pattern index that Home eNodeB is sent, be transmitted to described ABS pattern determination module, wherein, described ABS pattern index is that described Home eNodeB is selected respectively the index with the corresponding ABS pattern of resource utilization according to its user equipment (UE) resource operating position from its ABS pattern set and the set of the 2nd ABS pattern; A described ABS pattern set share the configuration in the ABS of Home eNodeB, and measures for the CQI of grand UE, described the 2nd ABS pattern set, and the RRM that is used for grand UE measures and the RLM measurement;
Described ABS pattern determination module, link to each other with described ABS pattern arrangement module, receive the ABS pattern index that described receiver module is sent, determine macro base station the one ABS pattern set and macro base station the 2nd ABS pattern ABS pattern in gathering according to this ABS pattern index; When the grand UE that determines to be in the RRC connection status with this macro base station was near described Home eNodeB, the ABS pattern during macro base station the one ABS pattern set determined and macro base station the 2nd ABS pattern gathered sent to described ABS pattern arrangement module; Describedly determine that according to ABS pattern index the ABS pattern in macro base station the 2nd ABS pattern set is the subset of ABS pattern in the set of macro base station the one ABS pattern;
Described ABS pattern arrangement module receives the ABS pattern that described ABS pattern determination module is sent, and measures to the communication quality indication CQI of grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to Radio Link monitoring RLM and the RRM RRM of grand UE ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of described ABS pattern arrangement block configuration to be measured; To be near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
13. macro base station according to claim 12 is characterized in that, described ABS pattern determination module comprises: grand UE position determination module;
Described grand UE position determination module, be used for to determine and this macro base station is in the grand UE of RRC connection status whether near described Home eNodeB, if so, definite macro base station the one ABS pattern set and the ABS pattern in the set of macro base station the 2nd ABS pattern are sent to described ABS pattern arrangement module; Otherwise, do not send the ABS pattern to described ABS pattern arrangement module.
14. according to claim 12 or 13 described macro base stations, it is characterized in that this macro base station further comprises: sending module;
Described ABS pattern determination module is further used for, according to be in the RRC connection status with described macro base station and be near the Home eNodeB grand UE resource operating position, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described sending module;
Described sending module with receiving the ABS pattern index of sending from described ABS pattern determination module, is transmitted to described Home eNodeB;
Described receiver module is further used for, and receives acceptance that described Home eNodeB sends or refusal and accepts the ABS pattern message of recommending.
15. a system that improves resource utilization is applied under the closed subscriber group (CSG) pattern of Home eNodeB, it is characterized in that, connects by X2 interface between Home eNodeB and the macro base station, this system comprises: Home eNodeB and macro base station;
Described Home eNodeB, link to each other with described macro base station, be used for according to Home eNodeB UE resource operating position, gather selection and the corresponding ABS pattern of resource utilization the set of neutralization the 2nd ABS pattern from first near blank subframe ABS pattern respectively, and the ABS pattern index of selecting is sent to macro base station by X2 interface; Simultaneously described Home eNodeB according to from ABS pattern set, select with the corresponding ABS pattern of resource utilization, dispose corresponding ABS subframe, with Home eNodeB UE scheduling on non-ABS subframe; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set; Wherein, a described ABS pattern set share the configuration in the ABS of Home eNodeB, and measures for the CQI of grand UE, described the 2nd ABS pattern set, and the RRM that is used for grand UE measures and the RLM measurement;
Described macro base station, the ABS pattern index that is used for sending according to described Home eNodeB are determined, the ABS pattern in the set of macro base station the one ABS pattern and the set of macro base station the 2nd ABS pattern;
The grand UE that determines to be in the RRC connection status when described macro base station is near described Home eNodeB the time, and described macro base station measures to the channel quality indicator (CQI) of described grand UE ABS pattern arrangement in the set of macro base station the one ABS pattern; Measure to Radio Link monitoring RLM and the RRM RRM of grand UE ABS pattern arrangement in the set of macro base station the 2nd ABS pattern; Described grand UE is carried out in the indicated ABS subframe of the ABS pattern of macro base station configuration to be measured; To be in simultaneously near the ABS subframe of grand UE scheduling in the set of macro base station the one ABS pattern of Home eNodeB.
16. system according to claim 15, it is characterized in that, described macro base station is further used for, according to being in the grand UE resource operating position of radio resource control RRC connection status with described macro base station, from the set of ABS pattern set neutralization the 2nd ABS pattern, select and the corresponding ABS pattern of resource utilization respectively, the ABS pattern index of selecting is sent to described Home eNodeB; The described ABS pattern of selecting from the set of the 2nd ABS pattern is the subset of the ABS pattern of selection from ABS pattern set;
Described Home eNodeB is further used for, receive the ABS pattern index that described macro base station is sent, according to Home eNodeB UE resource operating position, determine whether to accept the ABS pattern that described macro base station is recommended, if, accept recommendation information to described macro base station feedback, and be configured according to the ABS pattern of recommending; Otherwise, accept recommendation information to described macro base station feedback refusal, be configured according to the ABS pattern of self selecting.
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| CN102869052B (en) * | 2011-07-07 | 2016-08-03 | 上海贝尔股份有限公司 | Communication means in isomery mobile communications network and equipment |
| CN102244887B (en) * | 2011-07-21 | 2014-02-19 | 北京北方烽火科技有限公司 | Evolved Node B (eNodeB) monitoring system and eNodeB monitoring method |
| US8977268B2 (en) * | 2011-07-21 | 2015-03-10 | Alcatel Lucent | Methods and systems for controlling handovers in a co-channel network |
| CN102938938A (en) * | 2011-08-15 | 2013-02-20 | 中兴通讯股份有限公司 | Random access method and device |
| US9288823B2 (en) | 2011-08-31 | 2016-03-15 | Nokia Technologies Oy | HARQ Timing scheme for single-carrier uplink control information with inter-site carrier aggregation |
| CN103220815B (en) * | 2012-01-18 | 2019-02-15 | 中兴通讯股份有限公司 | A kind of inter-base station interface connection method for building up and device |
| CN102711169B (en) * | 2012-06-26 | 2014-07-16 | 电子科技大学 | Binding method for home base station ABS (almost blank sbuframe) configuration mode |
| CN102752863B (en) * | 2012-06-26 | 2014-12-17 | 电子科技大学 | Method for acquiring NeNB (Home eNode B) ABS (Almost Blank Subframe) configuration modes |
| EP2683191B1 (en) * | 2012-07-02 | 2016-12-28 | Alcatel Lucent | Inter-cell interference coordination for co-channel heterogeneous networks |
| 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 |
| CN103987121B (en) * | 2014-05-28 | 2017-06-23 | 电信科学技术研究院 | Resource allocation methods and equipment in a kind of layering networking |
| CN104394555B (en) * | 2014-12-12 | 2018-03-30 | 重庆邮电大学 | Dynamic disturbance management method based on Load-aware in a kind of heterogeneous network |
| CN112217754B (en) * | 2020-10-15 | 2022-05-03 | 捷开通讯(深圳)有限公司 | Method, device and system for eliminating channel interference |
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