CN102724721B - The method of cell merge and base station - Google Patents
The method of cell merge and base station Download PDFInfo
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- CN102724721B CN102724721B CN201210218322.4A CN201210218322A CN102724721B CN 102724721 B CN102724721 B CN 102724721B CN 201210218322 A CN201210218322 A CN 201210218322A CN 102724721 B CN102724721 B CN 102724721B
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Abstract
The invention discloses a kind of method and base station of cell merge.The method comprises: when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtains this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE; If the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.The method of the cell merge of the embodiment of the present invention and base station, can reduce user between grand Microcell and move the unnecessary hand off signaling brought, and saves bandwidth of air-interface.
Description
Technical field
The present invention relates to the communications field, and more specifically, relate to method and the base station of cell merge.
Background technology
Along with the development of technology, network is the more mode adopting macro base station and micro-base station mixed networking on networking mode, and object absorbs telephone traffic by micro-base station, because micro-base station can provide better signal quality, also just can provide larger transmission bandwidth.In this context, increasing Microcell (Small Cell) is mounted, the community forms such as wherein Microcell comprises Micro Cell, Pico Cell.
When terminal use enters after in the scene of grand micro-base station networking, the region covered not having Microcell, terminal use rests on macrocell (Macro Cell), once enter into the region both covered, now the way of base station judges whether terminal switches according to signal quality and network load.When the signal quality of Microcell be better than the certain threshold value of macrocell (setting thresholding mainly prevents from switching back and forth) and not by micro-cell load limit enter when, can switching flow be initiated, allow above terminal switch to Microcell.Otherwise, when terminal use shifts out Microcell, can be switched to above macrocell.According to such flow process, complete terminal use by the change of change in location to persistent district.
It is when terminal use can produce switching when two overlay area and single overlay area are moved that existing switchover policy and algorithm arrange the defect brought, the expense of base station side space interface signaling must be brought like this, and base station and core net or the signaling consumption between base station and base station, waste certain bandwidth of air-interface.This kind of situation is especially serious when intensive little base station networking.Such as, when central business district, user is movement constantly, continuous generation handoff procedure, and user does not often carry out actual business data transmission under these conditions, therefore the object by Microcell absorption telephone traffic does not reach, and only produce unnecessary signaling manipulation, unnecessary signaling wastes bandwidth.
Summary of the invention
Embodiments provide a kind of method and base station of cell merge, user between grand Microcell can be reduced and move the unnecessary hand off signaling brought, save bandwidth of air-interface.
On the one hand, embodiments provide a kind of method of cell merge, comprising: when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtaining this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE; If the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.
On the other hand, embodiments provide a kind of base station, comprise: acquisition module, for when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtain this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE; Processing module, if be greater than the first thresholding for the signal quality of this Target cell higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.
Based on technique scheme, the method of the cell merge of the embodiment of the present invention and base station, by when the bandwidth of the current needs of UE is not high, determine not switch, unnecessary switching can be reduced, thus user between grand Microcell can be reduced move the unnecessary hand off signaling brought, save bandwidth of air-interface.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the indicative flowchart of the method for cell merge according to the embodiment of the present invention.
Fig. 2 is the schematic diagram of an application scenarios according to the embodiment of the present invention.
Fig. 3 is the indicative flowchart of the method for cell merge in accordance with another embodiment of the present invention.
Fig. 4 is the indicative flowchart of the method for cell merge according to another embodiment of the present invention.
Fig. 5 is the indicative flowchart of the method for cell merge according to another embodiment of the present invention.
Fig. 6 is the schematic block diagram of the base station according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all should belong to the scope of protection of the invention.
Should understand, the technical scheme of the embodiment of the present invention can be applied to various communication system, such as: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, code division multiple access (Code Division Multiple Access, referred to as " CDMA ") system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, GPRS (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), universal mobile telecommunications system (Universal Mobile Telecommunication System, referred to as " UMTS "), global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system etc.
Will also be understood that, in embodiments of the present invention, subscriber equipment (User Equipment, referred to as " UE ") terminal (Terminal) can be referred to as, travelling carriage (Mobile Station, referred to as " MS "), mobile terminal (Mobile Terminal) etc., this subscriber equipment can through wireless access network (Radio Access Network, referred to as " RAN ") communicate with one or more core net, such as, subscriber equipment can be mobile phone (or being called " honeycomb " phone), there is the computer etc. of mobile terminal, such as, subscriber equipment can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.
In embodiments of the present invention, base station can be base station (the Base Transceiver Station in GSM or CDMA, referred to as " BTS "), also can be the base station (NodeB in WCDMA, referred to as " NB "), can also be the evolved base station (Evolutional Node B, referred to as " ENB or e-NodeB ") in LTE, the present invention limit.But for convenience of description, following embodiment will be described for base station and user equipment (UE).
Fig. 1 shows the indicative flowchart of the method 100 according to the cell merge of the embodiment of the present invention.As shown in Figure 1, the method 100 comprises:
S110, when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtains this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE;
S120, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.
In embodiments of the present invention, base station is when determining that the current area of UE is macrocell and Target cell is Microcell, namely when UE prepares to switch from macrocell to Microcell, not only obtain current area and the signal quality of Target cell and the load of Target cell, also obtain the current bandwidth demand of UE, then according to current area and the current bandwidth demand of the signal quality of Target cell, the load of Target cell and UE, determine whether to switch.That is, base station is when determining whether to switch, not only based on current area and the signal quality of Target cell and the load of Target cell, also to judge by the bandwidth demand current according to UE, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch, namely when the bandwidth of the current needs of UE is not high, do not switch, thus reduce network hand off signaling number of times, reduce signaling occupied bandwidth.
Therefore, the method for the cell merge of the embodiment of the present invention, by when the bandwidth of the current needs of UE is not high, determine not switch, unnecessary switching can be reduced, thus user between grand Microcell can be reduced move the unnecessary hand off signaling brought, save bandwidth of air-interface.
The embodiment of the present invention may be used for the scene of various macro base station and micro-base station mixed networking.Such as, the scene of grand micro-base station networking as shown in Figure 2.In fig. 2, macro base station forms macrocell, further comprises three Microcells in macrocell.
Alternatively, the first thresholding in the embodiment of the present invention, the second thresholding and the 3rd thresholding can be preset by base station, and can adjust according to network condition.
In S110, base station, when determining that the current area of UE is macrocell and Target cell is Microcell, obtains this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE.
Specifically, when UE enters Microcell from macrocell, the signal quality of current area and Target cell is reported to base station, the signal quality of the current area that base station acquisition UE reports and Target cell, determine the difference of the signal quality of Target cell and current area, obtain the load of Target cell to judge whether Target cell allows to enter simultaneously, in addition, base station also will obtain the current bandwidth demand of UE, namely determine that UE is current and whether carrying out a large amount of user service data transmission, to judge whether to switch.
In S120, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.
Alternatively, as shown in Figure 3, the method 100 also comprises:
S130, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, and the band of the current needs of this UE is wider than the second thresholding, then determine to switch; Or
S140, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, and the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is lower than the 3rd thresholding, then determine to switch; Or
S150, if the load that the signal quality of this Target cell is not more than the first thresholding or this Target cell higher than the value of the signal quality of this current area does not allow to enter, then determines not switch.
Base station is according to the value of the signal quality of Target cell higher than the signal quality of current area, and whether the load of Target cell allows the bandwidth entering the current needs with UE, determines whether to switch.
Specifically, when UE enters into Microcell from macrocell, namely Target cell is Microcell, current area is macrocell, first base station determines whether the quality of Target cell and current area and the load of Target cell meet switching condition, if the load that the signal quality of Target cell is not more than the first thresholding or Target cell higher than the value of the signal quality of current area does not allow to enter, then do not switch.Signal quality when Target cell is greater than the first thresholding higher than the value of the signal quality of current area, when the load of Target cell allows to enter, whether carry out switching and also will determine by the bandwidth demand current according to UE, namely base station judges whether the bandwidth of the current needs of UE is greater than the second thresholding, if the band of the current needs of UE is wider than the second thresholding, then switch.The bandwidth ratio of the current needs of UE is comparatively large, illustrates that UE is current and is carrying out a large amount of user service data transmission, be switched to the better Microcell of signal quality in this case and be conducive to improving service quality.If the bandwidth of the current needs of UE is not more than the second thresholding, the bandwidth demand that namely UE is current is little, illustrates that UE is current and does not carry out a large amount of user service data transmission, if now the signal quality of current area can guarantee service quality, then need not switch.Therefore, now whether can be greater than the 3rd thresholding according to the signal quality of current area and determine whether to switch, if the signal quality of current area is not less than the 3rd thresholding, illustrates that the signal quality of current area can guarantee service quality, then do not switch; If the signal quality of current area is lower than the 3rd thresholding, illustrates that the signal quality of current area is too poor, then switch.Too poor situation may be that UE enters into the region only having Microcell to cover to occur the signal quality of current area, namely this region is blind area for macrocell, therefore, the signal quality in current area can guarantee service quality in this case lower than carrying out switching during the 3rd thresholding.
Therefore, the method of the cell merge of the embodiment of the present invention, the bandwidth demand current according to UE determines whether to switch, do not switch when the bandwidth demand that UE is current is not high and the signal quality of current area can guarantee service quality, thus user between grand Microcell can be reduced move the unnecessary hand off signaling brought, save bandwidth of air-interface.
In embodiments of the present invention, alternatively, as shown in Figure 4, the method 100 also comprises:
S160, when determining that the current area of this UE is Microcell and Target cell is macrocell, obtains this current area and the signal quality of this Target cell and the load of this Target cell;
S170, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, and the load of this Target cell allows to enter, then determine to switch.
Base station is when determining that the current area of UE is Microcell and Target cell is macrocell, namely when UE prepares to switch from Microcell to macrocell, only need determine whether the signal quality of current area and Target cell and the load of Target cell meet switching condition, if meet switching condition, switch, even the signal quality of Target cell is greater than the first thresholding higher than the value of the signal quality of current area, and the load of Target cell allows to enter, then determine to switch.Adopt this switching mode that UE can be allowed to reside in macrocell more.
Alternatively, as shown in Figure 5, the method 100 also comprises:
S180, when determining that the current area of this UE is Microcell and Target cell comprises macrocell and at least one Microcell, obtains the load of the macrocell in the signal quality of the macrocell in this current area and this Target cell and this Target cell;
S190, if the signal quality of the macrocell in this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, and the load of macrocell in this Target cell allows to enter, then this UE is switched to the macrocell in this Target cell.
Base station determine the current area of UE be Microcell and Target cell comprise macrocell and at least one Microcell time, namely the Target cell of UE has multiple, when existing macrocell has again other Microcells, allow UE preferentially be switched to macrocell, instead of switch according to the signal quality of each Target cell.That is, if the signal quality of the macrocell in Target cell is greater than the first thresholding higher than the value of the signal quality of current area, and the load of macrocell in Target cell allows to enter, then UE is switched to the macrocell in Target cell.This switching mode can allow UE reside in macrocell more.
The method of the cell merge of the embodiment of the present invention, by UE is preferentially resided in macrocell, switching times when UE moves between grand Microcell can be reduced, can when not affecting user's impression, effectively reduce the generation quantity of the hand off signaling brought by fast mobile terminal attribute under the replace mode of grand Microcell, thus can the processing pressure of mitigation system, improve the message transmission rate of overall network.
Composition graphs 1 to Fig. 5 above, describes the method for the cell merge according to the embodiment of the present invention in detail, below in conjunction with Fig. 6, is described the base station according to the embodiment of the present invention.
Fig. 6 shows the schematic block diagram of the base station 600 according to the embodiment of the present invention.As shown in Figure 6, this base station 600 comprises:
Acquisition module 610, for when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtains this current area and the current bandwidth demand of the signal quality of this Target cell, the load of this Target cell and this UE;
Processing module 620, if be greater than the first thresholding for the signal quality of this Target cell higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is not less than the 3rd thresholding, then determine not switch.
The base station of the embodiment of the present invention, by when the bandwidth of the current needs of UE is not high, determines not switch, can reduce unnecessary switching, thus can reduce user between grand Microcell and move the unnecessary hand off signaling brought, and saves bandwidth of air-interface.
In embodiments of the present invention, alternatively, if this processing module 620 is also greater than the first thresholding for the signal quality of this Target cell higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, and the band of the current needs of this UE is wider than the second thresholding, then determine to switch.
Alternatively, if this processing module 620 is also greater than the first thresholding for the signal quality of this Target cell higher than the value of the signal quality of this current area, the load of this Target cell allows to enter, the bandwidth of the current needs of this UE is not more than the second thresholding, and the signal quality of this current area is lower than the 3rd thresholding, then determine to switch.
Alternatively, if the load that this processing module 620 is also not more than the first thresholding or this Target cell for the signal quality of this Target cell higher than the value of the signal quality of this current area does not allow to enter, then determine not switch.
The base station of the embodiment of the present invention, the bandwidth demand current according to UE determines whether to switch, do not switch when the bandwidth demand that UE is current is not high and the signal quality of current area can guarantee service quality, thus user between grand Microcell can be reduced move the unnecessary hand off signaling brought, save bandwidth of air-interface.
In embodiments of the present invention, alternatively, this acquisition module 610 also for when determining that the current area of this UE is Microcell and Target cell is macrocell, obtains this current area and the signal quality of this Target cell and the load of this Target cell;
This processing module 620 is also for when determining that the current area of this UE is Microcell and Target cell is macrocell, if the signal quality of this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, and the load of this Target cell allows to enter, then determine to switch.
In embodiments of the present invention, alternatively, this acquisition module 610, also for when determining that the current area of this UE is Microcell and Target cell comprises macrocell and at least one Microcell, obtains the load of the macrocell in the signal quality of the macrocell in this current area and this Target cell and this Target cell;
This processing module 620 also for determine the current area of this UE be Microcell and Target cell comprise macrocell and at least one Microcell time, if the signal quality of the macrocell in this Target cell is greater than the first thresholding higher than the value of the signal quality of this current area, and the load of macrocell in this Target cell allows to enter, then this UE is switched to the macrocell in this Target cell.
The executive agent of the method switched in embodiment of the present invention small area is may correspond to according to the base station 600 of the embodiment of the present invention, and above-mentioned and other operation of the modules in base station 600 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 5, for simplicity, do not repeat them here.
The base station of the embodiment of the present invention, by UE is preferentially resided in macrocell, switching times when UE moves between grand Microcell can be reduced, can when not affecting user's impression, effectively reduce the generation quantity of the hand off signaling brought by fast mobile terminal attribute under the replace mode of grand Microcell, thus can the processing pressure of mitigation system, improve the message transmission rate of overall network.
Should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation describing affiliated partner, and expression can exist three kinds of relations.Such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".
Those of ordinary skill in the art can recognize, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience of description and succinctly, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed coupling each other or direct-coupling or communication connection can be indirect coupling by some interfaces, device or unit or communication connection, also can be electric, machinery or other form connect.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of embodiment of the present invention scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, and also can be that the independent physics of unit exists, also can be that two or more unit are in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is in essence in other words to the part that prior art contributes, or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect amendment or the replacement of various equivalence easily, these amendments or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. a method for cell merge, is characterized in that, comprising:
When determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtain the bandwidth demand that the signal quality of described current area and described Target cell, the load of described Target cell and described UE are current;
If the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, the bandwidth of the current needs of described UE is not more than the second thresholding, and the signal quality of described current area is not less than the 3rd thresholding, then determine not switch.
2. method according to claim 1, is characterized in that, described method also comprises:
If the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, and the band of the current needs of described UE is wider than the second thresholding, then determine to switch; Or
If the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, the bandwidth of the current needs of described UE is not more than the second thresholding, and the signal quality of described current area is lower than the 3rd thresholding, then determine to switch; Or
If the load that the signal quality of described Target cell is not more than the first thresholding or described Target cell higher than the value of the signal quality of described current area does not allow to enter, then determine not switch.
3. method according to claim 1, is characterized in that, described method also comprises:
When determining that the current area of described UE is Microcell and Target cell is macrocell, obtain the signal quality of described current area and described Target cell and the load of described Target cell;
If the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, and the load of described Target cell allows to enter, then determine to switch.
4. the method according to claim 1 or 3, is characterized in that, described method also comprises:
When determining that the current area of described UE is Microcell and Target cell comprises macrocell and at least one Microcell, obtain the load of the macrocell in the signal quality of the macrocell in described current area and described Target cell and described Target cell;
If the signal quality of the macrocell in described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, and the load of macrocell in described Target cell allows to enter, then described UE is switched to the macrocell in described Target cell.
5. a base station, is characterized in that, comprising:
Acquisition module, for when determining that the current area of user equipment (UE) is macrocell and Target cell is Microcell, obtains the bandwidth demand that the signal quality of described current area and described Target cell, the load of described Target cell and described UE are current;
Processing module, if be greater than the first thresholding for the signal quality of described Target cell higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, the bandwidth of the current needs of described UE is not more than the second thresholding, and the signal quality of described current area is not less than the 3rd thresholding, then determine not switch.
6. base station according to claim 5, it is characterized in that, if described processing module is also greater than the first thresholding for the signal quality of described Target cell higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, and the band of the current needs of described UE is wider than the second thresholding, then determine to switch; Or, if the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, the load of described Target cell allows to enter, the bandwidth of the current needs of described UE is not more than the second thresholding, and the signal quality of described current area is lower than the 3rd thresholding, then determine to switch; Or, if the load that the signal quality of described Target cell is not more than the first thresholding or described Target cell higher than the value of the signal quality of described current area does not allow to enter, then determine not switch.
7. base station according to claim 5, it is characterized in that, described acquisition module also for when determining that the current area of described UE is Microcell and Target cell is macrocell, obtains the signal quality of described current area and described Target cell and the load of described Target cell;
Described processing module is also for when determining that the current area of described UE is Microcell and Target cell is macrocell, if the signal quality of described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, and the load of described Target cell allows to enter, then determine to switch.
8. the base station according to claim 5 or 7, it is characterized in that, described acquisition module also for when determining that the current area of described UE is Microcell and Target cell comprises macrocell and at least one Microcell, obtains the load of the macrocell in the signal quality of the macrocell in described current area and described Target cell and described Target cell;
Described processing module also for determine the current area of described UE be Microcell and Target cell comprise macrocell and at least one Microcell time, if the signal quality of the macrocell in described Target cell is greater than the first thresholding higher than the value of the signal quality of described current area, and the load of macrocell in described Target cell allows to enter, then described UE is switched to the macrocell in described Target cell.
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| CN104244372A (en) * | 2013-06-14 | 2014-12-24 | 中国移动通信集团公司 | Method for terminal to have access to small cell, terminal and base station |
| CN103974350B (en) * | 2014-05-20 | 2018-01-30 | 上海交通大学 | A kind of switching method of adaptive threshold decision |
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| CN106304217A (en) * | 2015-05-13 | 2017-01-04 | 中兴通讯股份有限公司 | Changing method in a kind of heterogeneous network and device |
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