CN106550418A

CN106550418A - A kind of decision method and device of cell switching

Info

Publication number: CN106550418A
Application number: CN201510609309.5A
Authority: CN
Inventors: 叶枫
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-09-22
Filing date: 2015-09-22
Publication date: 2017-03-29

Abstract

The invention discloses the decision method and device of a kind of cell switching, to solve cell handoff failure present in prior art, cause the problem of call drop.The method includes：Source base station determines the corresponding cell physical layer identifiers of Target cell for meeting switching condition according to the measurement report that terminal sends；The source base station determines the geographical position that the terminal is currently located, and determines the signal cover of corresponding at least one cell of the cell physical layer identifiers；Wherein, in the adjacent cell list of the current service cell of the terminal, corresponding at least one cell of the cell physical layer identifiers；Geographical position and the relation of the signal cover of at least one cell that the source base station is currently located based on the terminal, carry out the judgement of cell switching to the terminal.

Description

A kind of decision method and device of cell switching

Technical field

The present invention relates to communication technical field, more particularly to a kind of decision method and device of cell switching.

Background technology

In mobile cellular system, when terminal is moved in different minizones, need to carry out cutting for minizone Change to ensure business continuance.

In mobile cellular system, the signal quality of terminal-pair each adjacent cell is measured.Generally in service When the signal quality of cell and adjacent cell meets certain condition, that is, meet condition defined in a given metering event When, measurement report can be reported base station by such as A4 events, terminal, then measurement of the base station according to terminal Report judges whether to trigger and perform switching flow, and terminal is switched to Target cell from cell-of-origin.

Terminal measurement may detect that satisfaction measurement on a certain target frequency typically for specific frequency The cell of the defined condition of event.But it is possible that terminal measure meet the defined bar of measurement event The cell of part does not have in adjacent cell list, or adjacent cell list is included with to meet measurement event determined Other cells of the cell conflict of adopted condition, if now source base station is directly switched the terminal into measured by terminal The cell for meeting the defined condition of measurement event may result in handoff failure, cause call drop.

The content of the invention

The embodiment of the present invention provides a kind of decision method and device of cell switching, to solve in prior art The cell handoff failure of presence, causes the problem of call drop.

In a first aspect, embodiments providing a kind of decision method of cell switching, the method includes：

According to the measurement report that terminal sends, source base station determines that the Target cell for meeting switching condition is corresponding little Area's physical layer identifications；

The source base station determines the geographical position that the terminal is currently located；

The source base station determines that the cell physical layer identifiers are arranged in terminal current service cell adjacent cell The signal cover of corresponding at least one cell in table；

Geographical position and the cell physical layer identifiers pair that the source base station is currently located based on the terminal The relation of the signal cover of at least one cell answered, carries out the judgement of cell switching to the terminal.

With reference in a first aspect, in the first possible implementation of first aspect, the source base station determines The geographical position that the terminal is currently located, including：

The source base station determines the terminal according to the geographical location information of the terminal of the terminal to report The geographical position being currently located.

With reference in a first aspect, in second possible implementation of first aspect, the source base station determines The geographical position that the terminal is currently located, including：

The source base station positions the geographical position that the terminal is currently located.

With reference to first aspect and first aspect the first to any one in second possible implementation Kind, in the third possible implementation of first aspect, the source base station determines the cell physical layer The signal cover of corresponding at least one cell is identified, including：

The cell coverage information that the source base station is stored according to the source base station, determines the cell physical layer mark Know the signal cover of corresponding at least one cell.

With reference to first aspect and first aspect the first to any one in second possible implementation Kind, in the 4th kind of possible implementation of first aspect, the source base station determines the cell physical layer The signal cover of corresponding at least one cell is identified, including：

The source base station sends inquiry request to network operation maintenance system, and the inquiry request is used to inquire about institute State the signal cover of corresponding at least one cell of cell physical layer identifiers；

The source base station receives the inquiry response that the network operation maintenance system sends, in the inquiry response Carry the signal cover of corresponding at least one cell of the cell physical layer identifiers.

With reference to first aspect and first aspect the first to any one in the 4th kind of possible implementation Kind, it is in the 5th kind of possible implementation of first aspect, multiple in cell physical layer identifiers correspondence During cell, geographical position and the cell physical layer identifiers that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell, carries out cell switching to the terminal and sentences Certainly, including：

The source base station determines that the geographical position that the terminal is currently located is located at the cell physical layer identifiers In the signal cover of a cell in corresponding multiple cells；

The source base station using one cell as the first switching target small area, and for the terminal perform The operation of first switching target small area is switched to from the current service cell.

With reference to first aspect and first aspect the first to any one in the 4th kind of possible implementation Kind, it is in the 6th kind of possible implementation of first aspect, multiple in cell physical layer identifiers correspondence During cell, geographical position and the cell physical layer identifiers that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell, carries out cell switching to the terminal and sentences Certainly, including：

The source base station determines that the geographical position that the terminal is currently located is located in the plurality of cell extremely In the signal cover of few two cells；

The source base station determines the letter in geographical position that the terminal is currently located and at least two cell The distance of number launch point；

The source base station is using the signal launch point apart from least two cell nearest cell as second Switching target small area；

The source base station is performed from the current service cell for the terminal and is switched to second switching The operation of Target cell.

With reference to first aspect and first aspect the first to any one in the 4th kind of possible implementation Kind, in the 7th kind of possible implementation of first aspect, when the cell physical layer identifiers correspond to one During cell, geographical position and the cell physical layer identifiers that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell, carries out cell switching to the terminal and sentences Certainly, including：

The source base station determines that the geographical position that the terminal is currently located is located at the signal of one cell In coverage；

The source base station using one cell as the 3rd switching target small area, and for the terminal perform The operation of the 3rd switching target small area is switched to from the current service cell.

With reference to first aspect and first aspect the first to any one in the 4th kind of possible implementation Kind, in the 8th kind of possible implementation of first aspect, the source base station is based on the current institute of the terminal Geographical position at least one cell corresponding with the cell physical layer identifiers signal cover Relation, carries out the judgement of cell switching to the terminal, including：

The source base station determines that the geographical position that the terminal is located is corresponding positioned at the cell physical layer identifiers At least one cell in all cells signal cover outside, the terminal is maintained at into the terminal Current service cell.

With reference to the 8th kind of possible implementation of first aspect, in the 9th kind of possible realization of first aspect In mode, methods described also includes：

It is determined that the terminal be located geographical position be located at the Target cell mark corresponding at least When outside the signal cover of all cells in one cell, the source base station initiates to improve the adjacent cell The flow process of list.

Second aspect, embodiments provides a kind of decision method of cell switching, and the method includes：

Described in terminal positioning, terminal is currently located geographical position；

The terminal for positioning is currently located geographical position and is sent to source base station by the terminal, and the terminal is worked as The geographical position at front place is used for the judgement that the source base station performs cell switching.

With reference to second aspect, in the first possible implementation of second aspect, the terminal positioning institute State terminal and be currently located geographical position, including：

The geographical position that the positioning terminal of the terminal periodic is currently located.

With reference to the first possible implementation of second aspect or second aspect, at second of second aspect In possible implementation, the terminal for positioning is currently located geographical position and is sent to source base by the terminal Before standing, also include：

The terminal receives the inquiry request that the source base station sends, and the inquiry request is used to inquire about described The geographical position that terminal is currently located；

The terminal for positioning is currently located geographical position and is sent to source base station by the terminal, including：

The terminal sends inquiry response to the source base station, carries the terminal current in the inquiry response The geographical location information at place.

With reference to second aspect and second aspect the first to any one in second possible implementation Kind, in the third possible implementation of second aspect, methods described also includes：

The terminal sends measurement report to the source base station, carries and meet switching condition in the measurement report Target cell corresponding cell physical layer switching mark.

The third aspect, embodiments provides a kind of judgment device of cell switching, including：

Transmit-Receive Unit, for the measurement report that receiving terminal sends；

Processing unit, the measurement report for being sent according to the terminal determine that the target for meeting switching condition is little The corresponding cell physical layer identifiers in area；Determine the geographical position that the terminal is currently located；And determine described little Area's physical layer identifications corresponding at least one cell in the adjacent cell list of the terminal current service cell Signal cover；The geographical position being currently located based on the terminal is corresponding with the cell physical layer identifiers At least one cell signal cover relation, the judgement of cell switching is carried out to the terminal.

With reference to the third aspect, in the first possible implementation of the third aspect, the Transmit-Receive Unit, It is additionally operable to receive the described geographical position being currently located of the terminal to report；

The processing unit it is determined that the terminal be currently located geographical position when, specifically for according to described The geographical location information of the terminal of terminal to report determines the geographical position that the terminal is currently located.

With reference to the third aspect, in second possible implementation of the third aspect, the processing unit, It is determined that the terminal be currently located geographical position when, specifically for positioning the ground that the terminal is currently located Reason position.

With reference to the third aspect and the third aspect the first to any one in second possible implementation Kind, in the third possible implementation of the third aspect, also include：

Memory element, for storing cell coverage information；

The processing unit, it is determined that the signal of corresponding at least one cell of the cell physical layer identifiers covers During lid scope, specifically for the cell coverage information stored according to the source base station, the cell physics is determined The signal cover of corresponding at least one cell of layer mark.

With reference to the third aspect and the third aspect the first to any one in second possible implementation Kind, in the 4th kind of possible implementation of the third aspect, the Transmit-Receive Unit is additionally operable to network grasp Make maintenance system and send inquiry request, the inquiry request is corresponding for inquiring about the cell physical layer identifiers The signal cover of at least one cell；The inquiry response that the network operation maintenance system sends is received, The signal that corresponding at least one cell of the cell physical layer identifiers is carried in the inquiry response covers model Enclose.

With reference to the third aspect and the third aspect the first to any one in the 4th kind of possible implementation Kind, it is in the 5th kind of possible implementation of the third aspect, multiple in cell physical layer identifiers correspondence During cell, the processing unit, in the geographical position being currently located based on the terminal and the cell physics The relation of the signal cover of corresponding at least one cell of layer mark, carries out cell switching to the terminal Judgement when, specifically for：

Determine that the geographical position that the terminal is currently located is corresponding multiple positioned at the cell physical layer identifiers In the signal cover of a cell in cell；

Using one cell as the first switching target small area, and perform from described current for the terminal Serving cell is switched to the operation of first switching target small area.

With reference to the third aspect and the third aspect the first to any one in the 4th kind of possible implementation Kind, it is in the 6th kind of possible implementation of the third aspect, multiple in cell physical layer identifiers correspondence During cell, the processing unit is in the geographical position being currently located based on the terminal and the cell physical layer The relation of the signal cover of corresponding at least one cell is identified, cell switching is carried out to the terminal During judgement, specifically for：

Determine that the geographical position that the terminal is currently located is located at least two cells in the plurality of cell Signal cover in；

Determine geographical position and the signal launch point of at least two cell that the terminal is currently located Distance；

Signal launch point apart from least two cell nearest cell is little as the second switching target Area；

Perform for the terminal second switching target small area is switched to from the current service cell Operation.

With reference to the third aspect and the third aspect the first to any one in the 4th kind of possible implementation Kind, in the 7th kind of possible implementation of the third aspect, when the cell physical layer identifiers correspond to one During cell, the processing unit is in the geographical position being currently located based on the terminal and the cell physical layer The relation of the signal cover of corresponding at least one cell is identified, cell switching is carried out to the terminal During judgement, specifically for：

Determine that the geographical position that the terminal is currently located is located in the signal cover of one cell；

Using one cell as the 3rd switching target small area, and perform from described current for the terminal Serving cell is switched to the operation of the 3rd switching target small area.

With reference to the third aspect and the third aspect the first to any one in the 4th kind of possible implementation Kind, in the 8th kind of possible implementation of the third aspect, the processing unit, based on the terminal The signal of the geographical position being currently located at least one cell corresponding with the cell physical layer identifiers is covered The relation of scope, when carrying out the judgement of cell switching to the terminal, specifically for：

Determine that the geographical position that the terminal is located is located at the cell physical layer identifiers corresponding at least one Outside the signal cover of all cells in cell, the terminal is maintained at into the current service of the terminal Cell.

With reference to the 8th kind of possible implementation of the third aspect, in the 9th kind of possible realization of the third aspect In mode, the processing unit is additionally operable to：

It is determined that the terminal be located geographical position be located at the Target cell mark corresponding at least When outside the signal cover of all cells in one cell, the stream of the adjacent cell list is improved in initiation Journey.

Fourth aspect, the embodiment of the present invention additionally provide a kind of judgment device of cell switching, and described device should For terminal, the device includes：

Processing unit, is currently located geographical position for positioning the terminal；

Transmit-Receive Unit, is sent to for the terminal that the processing unit is positioned is currently located geographical position Source base station, the geographical position that the terminal is currently located are used for the judgement that the source base station performs cell switching.

With reference to fourth aspect, in the first possible implementation of fourth aspect, the processing unit, Specifically for periodically positioning the geographical position that the terminal is currently located.

With reference to the first possible implementation of fourth aspect or fourth aspect, at second of fourth aspect In possible implementation, the Transmit-Receive Unit is sent out the terminal of positioning is currently located geographical position Before giving source base station, it is additionally operable to：

The inquiry request that the source base station sends is received, the inquiry request is current for inquiring about the terminal The geographical position at place；

The Transmit-Receive Unit, when the terminal of positioning to be currently located geographical position and is sent to source base station, Specifically for inquiry response being sent to the source base station, carry the terminal and be currently located in the inquiry response Geographical location information.

With reference to fourth aspect and fourth aspect the first to any one in second possible implementation Kind, in the third possible implementation of fourth aspect, the Transmit-Receive Unit is additionally operable to the source Base station sends measurement report, and the corresponding cell of Target cell for meeting switching condition is carried in the measurement report Physical layer switching mark.

In terms of 5th, the embodiment of the present invention additionally provides a kind of decision system of cell switching, and the system includes Described in any one in the first of the third aspect and the third aspect to the 9th kind of possible implementation It is any one in device, and the first of fourth aspect and fourth aspect to the third possible implementation Device described in kind.

According to the measurement report that terminal sends, source base station determines that the Target cell for meeting switching condition is corresponding little Area's physical layer identifications；The source base station determines the cell physical layer identifiers in the terminal current service cell The signal cover of corresponding at least one cell in adjacent cell list；The source base station is based on the terminal The relation of the geographical position being currently located and the signal cover of at least one cell, to the terminal Carry out the judgement of cell switching.In a cell physical layer identifiers multiple cell of correspondence, it is not simple Perform switching according to cell physical layer identifiers, but the geographical position being currently located according to the terminal with it is described The relation of the signal cover of at least one cell corresponding to cell physical layer identifiers is switching over Judgement, so as to avoid handoff failure, causes the problem of call drop.

Description of the drawings

Fig. 1 is the schematic diagram of the situation of the first PCI confusion provided in an embodiment of the present invention；

Fig. 2 is the schematic diagram of the situation of second PCI confusion provided in an embodiment of the present invention；

Fig. 3 is LTE system Organization Chart provided in an embodiment of the present invention；

Fig. 4 is a kind of decision method flow chart of cell switching provided in an embodiment of the present invention；

Fig. 5 is cell signal coverage schematic diagram provided in an embodiment of the present invention；

Fig. 6 is the decision method flow chart of another kind of cell switching provided in an embodiment of the present invention；

Fig. 7 is a kind of decision method schematic diagram of cell switching provided in an embodiment of the present invention；

Fig. 8 is a kind of terminal provided in an embodiment of the present invention and subdistrict position schematic diagram；

Fig. 9 is the decision method schematic diagram of another kind of cell switching provided in an embodiment of the present invention；

Figure 10 is another kind of terminal provided in an embodiment of the present invention and subdistrict position schematic diagram；

Figure 11 is a kind of judgment device schematic diagram of cell switching provided in an embodiment of the present invention；

Figure 12 is the judgment device schematic diagram of another kind of cell switching provided in an embodiment of the present invention；

Figure 13 is a kind of decision device schematic diagram of cell switching provided in an embodiment of the present invention；

Figure 14 is the decision device schematic diagram of another kind of cell switching provided in an embodiment of the present invention.

Specific embodiment

In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing to this It is bright to be described in further detail, it is clear that described embodiment is only a part of embodiment of the invention, Rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing The all other embodiment obtained under the premise of going out creative work, belongs to the scope of protection of the invention.

The embodiment of the present invention provides a kind of decision method and device of cell switching, to solve in prior art The cell handoff failure of presence, causes the problem of call drop.Wherein, method and apparatus is based on same invention structure Think, as the principle of method and device solve problem is similar, therefore the enforcement of apparatus and method can be mutual Referring to repetition part is repeated no more.

Terminal detects the cell for meeting the defined condition of measurement event on a certain target frequency, and each is little here There are independent cell physical layer identifiers, such as Long Term Evolution (English in area：Long Term Evolution, letter Claim：LTE) in system, each cell has respective Physical Cell Identifier (English：Physical Cell Identify, Referred to as：PCI).Its measurement event that meets for measuring can be carried to be defined in the measurement report of terminal to report The PCI and measurement result of the cell of condition.In LTE system, the PCI of different districts is usually manual Planning, and PCI numbers are limited in itself, and this cell that position may be caused different has used phase Same PCI.On the other hand, if the renewal of neighboring BS relationship not in time or existing defects, it is also possible to cause PCI Unreasonable distribution.

If by measuring, terminal finds that Serving cell meets handoff threshold with measurement cell, needs are cut Change, but in adjacent cell list, the measurement cell has identical PCI with the adjacent area of Serving cell, then may be used Energy can cause UE switch, call drop.This kind of PCI conflicts are referred to as PCI confusion.Specifically there may be with Lower two kinds of situations：

The first situation, as shown in Figure 1：

The Cell B that terminal is measured on frequency identical with Serving cell Cell A meet the defined bar of measurement event Part, to base station reporting measurement reports.The corresponding cells of the PCI in the adjacent cell list of Serving cell Cell A For Cell C, rather than Cell B.Base station takes for the adjacent area Cell C that terminal has measured Serving cell, So as to directly initiate the switching to adjacent area (Cell C).Now, if current region does not have adjacent area (Cell C) The covering of signal, as shown in figure 1, the actually Cell B coverings of terminal present position, then be directly switch to CellC Switching can cause handoff failure, cause call drop.

Second situation, as shown in Figure 2：

If two cells of identical PCI, such as Cell B and Cell are contained in the Neighboring Cell List of base station C), after the Cell B that terminal to report is measured are to base station, base station relies only on PCI can not differentiate terminal and measure Adjacent area to as if which cell, if directly switching, handoff failure can be caused, cause call drop.

In the embodiment of the present invention, a cell physical layer identifiers correspond to multiple cells.Wherein, the cell can be with It is the cell in LTE, now cell physical layer identifiers are PCI；Can also be the cell in other systems, Such as WCDMA system etc..In embodiments of the present invention, carry out by taking the PCI in LTE system as an example Explanation.

In embodiments of the present invention, terminal (Terminal) can be referred to as user equipment (English：User Equipment, referred to as：UE), mobile station (English：Mobile Station, referred to as：MS it is) or mobile Terminal (Mobile Terminal) etc., the terminal can be with Jing wireless access networks (English：Radio Access Network, referred to as：RAN) communicated with one or more core nets, for example, terminal can be moved Mobile phone (or being referred to as " honeycomb " phone) or the computer with mobile terminal etc., for example, terminal may be used also To be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and nothing Line access exchanges voice and/or data.

In embodiments of the present invention, base station can be the base station (English in GSM or CDMA：Base Transceiver Station, BTS), or WCDMA in node B (NodeB), can be with It is the evolved node B (eNB or e-NodeB, evolved Node B) or relaying (Relay) in LTE, The embodiment of the present invention is not limited.

As shown in figure 3, being LTE system Organization Chart provided in an embodiment of the present invention.LTE system includes core Heart net (English：Evolved Packet Core, referred to as：EPC) and evolution UMTS land it is wireless Access network (English：Evolved UMTS Terrestrial Radio Access Network, referred to as： E-UTRAN).UMTS represents Universal Mobile Telecommunications System, is Universal Mobile The abbreviation of Telecommunication System.

Node B (English of the E-UTRAN by multiple evolution：Evolved NodeB, referred to as：ENB) group Into by X2 interface mutual connection between eNB.Essential core net equipment in EPC includes mobility pipe Reason entity (English：Mobile Managenment Entity, referred to as：) and gateway (English MME Text：Serving GateWay, referred to as：S-GW) etc..It is mutual by S1 interfaces between eNB and EPC Connection, and between eNB and terminal, pass through LTE-Uu interface inter-links.

A kind of decision method of cell switching is embodiments provided, as shown in figure 4, the method includes：

Step 401, source base station determine the Target cell for meeting switching condition according to the measurement report that terminal sends Corresponding cell physical layer identifiers.

Specifically, source base station is setting up wireless heterogeneous networks (English with terminal：Radio Resource Control, Referred to as：RRC after), RRC connection reconfiguration messages can be sent to terminal, the RRC connections are reconfigured Message includes measuring control information：Handover event, handoff threshold etc..Such as handover event is A4 things Part, that is, meet neighboring cell signal quality higher than measurement thresholding.General signal quality includes：Cell reference signals connect Receive intensity (English：Reference signal received power, referred to as：RSRP) believe with cell reference Number quality of reception (English：Reference signal received quality, referred to as：RSRQ).Terminal root Mobility measurements are performed according to measuring control information, when it is determined that measurement result meets A4 events, to source base station Reporting measurement reports, the measurement report include at least one PCI for meeting A4 events and its corresponding letter Number quality, so as to source base station determines a PCI for meeting switching condition according to signal quality.

Step 402, the source base station determine the geographical position that the terminal is currently located；The source base station is true The fixed cell physical layer identifiers are corresponding at least one in the adjacent cell list of the terminal current service cell The signal cover of individual cell.

Wherein, in the adjacent cell list of the current service cell of the terminal, the cell physical layer identifiers Correspondence at least one cell.

Step 403, geographical position and the cell physics that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell of layer mark, carries out cell switching to the terminal Judgement.

According to the measurement report that terminal sends, source base station determines that the Target cell for meeting switching condition is corresponding little Area's physical layer identifications；The source base station determines the geographical position that the terminal is currently located, and determines described little The signal cover of corresponding at least one cell of area's physical layer identifications；Then source base station is based on the terminal The relation of the geographical position being currently located and the signal cover of at least one cell, to the terminal Carry out the judgement of cell switching.In a cell physical layer identifiers multiple cell of correspondence, it is not simple Perform switching according to cell physical layer identifiers, but the geographical position being currently located according to the terminal with it is described The relation of the signal cover of at least one cell corresponding to cell physical layer identifiers is switching over Judgement, so as to avoid handoff failure, causes the problem of call drop.

Alternatively, the source base station determines that the geographical position that the terminal is currently located can be in the following manner Realize：

The first implementation：

The source base station is determined according to the geographical location information that the terminal of the terminal to report is currently located The geographical position that the terminal is currently located.

Specifically, source base station can report the geographical location information that the terminal is currently located every time in terminal Afterwards, store the geographical location information that the terminal is currently located；Then the measurement that source base station is sent according to terminal After report determination meets the corresponding cell physical layer identifiers of Target cell of switching condition, according to storage Terminal geographic positional information, determines the geographical position that the terminal is currently located.

Wherein, each terminal for establishing a connection with the source base station can be periodically to the source base station The geographical location information being currently located of each terminal is reported, source base station can be by end in each cycle The geographical location information that end reports is preserved, and with periodically reporting for terminal, source base station is then periodically more Newly.A memorizer can be specifically separately provided for preserving the geographical location information of each terminal.

Wherein, after starting up of terminal being set up with source base station be connected, itself can be positioned using location algorithm The geographical position at place, and form geographical location information and be sent to source base station.Terminal can be periodically to source Base station reports the geographical location information itself being located.

Certainly source base station can report request to send geographical position to terminal, and then terminal is described in receive Geographical position sends the geographical location information that the terminal is currently located to source base station after reporting request.

Geographical location information described in the embodiment of the present invention may be with not according to location algorithm or scene difference With mode present, such as latitude and longitude value (30 ° of N, 120 ° of E) or relative to the coordinate bit of reference point source base station Put the coordinate (40,100) of (0,0) etc..

Second implementation：

Specifically, determined according to the measurement report that terminal sends in step 401 source base station and meet switching condition After the corresponding cell physical layer identifiers of Target cell, source base station positions the terminal using location algorithm and is currently located Geographical position.

What the source base station can also periodically be positioned and be stored is established a connection with the source base station The geographical location information that each terminal is located.Then store the geographical location information that each terminal is located. Can be so that, after the terminal and source base station are set up and be connected, source base station be periodically determined eventually using location algorithm The geographical location information that end is located, and periodically update preservation.

Then the target for meeting switching condition is determined in step 401 source base station according to the measurement report that terminal sends After the corresponding cell physical layer identifiers of cell, the source base station is according to the geographical location information of storage determines The geographical position that terminal is currently located.

Alternatively, the source base station determines the signal of corresponding at least one cell of the cell physical layer identifiers Coverage, can with but be not limited only to be accomplished by：

The first implementation：

The cell coverage information that the source base station is stored according to the source base station, determines the cell physical layer mark Know the signal cover of corresponding at least one cell.The cell coverage information includes the letter of all cells Number coverage information.All cells can be for all cells in a city or a section, Can also be all cells in a regional extent of definition etc..

Wherein, cell signal coverage information described here can be pre-configured in all base stations.

Second implementation：

The source base station sends inquiry request to network operation maintenance system, and the inquiry request is used to inquire about institute State the signal cover of corresponding at least one cell of cell physical layer identifiers；The source base station receives described The inquiry response that network operation maintenance system sends, carries the PCI corresponding at least in the inquiry response The signal cover of one cell.

Wherein, the signal covering orientation of cell can be stated in the following manner：For example (X, Y, R, θ, β), wherein, (X, Y) represents the coordinate position of signal launch point, and R is covering radius, (θ, β) The minimum and maximum angle in MPS process direction is represented, for example as shown in Figure 5：Cell coverage area information (0, 0,100, -60,60)；This kind of form of presentation corresponds to the pass the covering model of multiple beam antenna paths base station Enclose the situation that cracking goes out multiple cells.Actually network side can also be embodied by another kind of form, and such as one Individual base station is only covered using a secondary whole day line, then the coverage of a base station is somebody's turn to do only with a physical area The coverage of physical area only needs by (X, Y, R) to represent.

Alternatively, in the cell physical layer identifiers multiple cells of correspondence, the source base station is based on the end The relation of the geographical position and signal cover of at least one cell being currently located is held, to the end End carries out the judgement of cell switching, can be accomplished by：

The first implementation：

The source base station determines that the geographical position that the terminal is currently located is located in the plurality of cell one In the signal cover of individual cell.

Second implementation：

A1：The source base station determines that the geographical position that the terminal is currently located is located in the plurality of cell In the signal cover of at least two cells.

A2：The source base station determines the geographical position and at least two cell that the terminal is currently located The distance of signal launch point.

A3：The source base station is using the signal launch point apart from least two cell nearest cell as cutting Change Target cell.

A4：The source base station is performed for the terminal and is switched to the switching mesh from the current service cell The operation of mark cell.

Alternatively, the source base station is it is determined that the geographical position that the terminal is located is located at the cell physical layer When identifying outside the signal cover of corresponding multiple cells, forbid performing cell switching behaviour for the terminal Make.

Alternatively, the source base station is it is determined that the geographical position that the terminal is located is located at the Target cell When outside the signal cover of at least one corresponding cell of mark, the source base station initiates to improve the neighbour The flow process of cell list.For example the flow process can be Automatic Neighboring Relation ANR (English：automatic Neighbor relation, referred to as：ANR) flow process, Cell_C is added in the Neighboring Cell List of Cell_A. A kind of possible ANR processes are：Source base station is configured to UE sending measurings, it is desirable to PCIs of the UE to report As parameter, the Cell Global Identity identification code (English of cell corresponding to the PCI is measured：E-UTRAN Cell Global Identity, referred to as：ECGI), tracking area coding (English：Tracking Area Code, referred to as： TAC), public land mobile network (English：Public Land Mobile Network, referred to as：PLMN) Etc. parameter；Terminal reads ECGI, TAC, PLMN of Cell_C by the broadcast channel of other base stations The parameter informations such as identification, will read these parameter informations and report source base station；Source base station will be newfound The information of Cell C is added to the neighborhood region correlation chart (English of Cell A：NeighbourRelationTable, letter Claim：NRT).

When the cell physical layer identifiers one cell of correspondence, the source base station is based on the current institute of the terminal Geographical position at least one cell corresponding with the cell physical layer identifiers signal cover Relation, carries out the judgement of cell switching to the terminal, can be accomplished by：

The source base station is it is determined that the geographical position that the terminal is currently located is located at the letter of one cell When in number coverage, using one cell as switching target small area, and for the terminal perform from The current service cell is switched to the operation of the switching target small area.

The source base station is it is determined that the geographical position that the terminal is located is located at the cell physical layer identifiers pair When outside the signal cover of all cells at least one cell answered, the terminal is maintained at into described The current service cell of terminal.Cell handover operations are not performed to the terminal.

Alternatively, the source base station is it is determined that the geographical position that the terminal is located is located at the Target cell When outside the signal cover of all cells at least one corresponding cell of mark, the source base station is sent out Act the flow process for improving the adjacent cell list.For example Automatic Neighboring Relation ANR flow processs, Cell_C is added To in the Neighboring Cell List of Cell_A.

The embodiment of the present invention additionally provides a kind of decision method of cell switching, as shown in fig. 6, the method bag Include：

Step 601, terminal described in terminal positioning are currently located geographical position；

The terminal for positioning is currently located geographical position and is sent to source base station by step 602, the terminal； The geographical position that the terminal is currently located is used for the judgement that the source base station performs cell switching.

Specifically, source base station performs the judgement of cell switching according to the geographical position that the terminal is currently located Implementation is referred to the mode of the description of the embodiment shown in Fig. 4, and the embodiment of the present invention will not be described here.

Alternatively, terminal described in the terminal positioning is currently located geographical position, can be real in the following manner It is existing：

The geographical position that the positioning terminal of the terminal periodic is currently located.Then terminal is at the end Hold when being currently located the terminal of positioning geographical position and be sent to source base station, periodically will positioning institute State the geographical position that terminal is currently located and be sent to the source base station.

Alternatively, the terminal by position the terminal be currently located geographical position be sent to source base station it Before, also include：

The terminal receives the inquiry request that the source base station sends, and the query messages are used to inquire about described The geographical position that terminal is currently located；

The terminal can also periodically position the geographical position being currently located of the terminal, and preserve, After the inquiry request for inquiring about geography information for receiving source base station transmission, by the terminal of positioning The geographical position being currently located is sent to the source base station.

Alternatively, methods described also includes：

The terminal for positioning is currently located geographical position and is sent to source base station by the terminal；The terminal is worked as The geographical position at front place is used for the judgement that the source base station performs cell switching.In a cell physical layer mark When knowing the multiple cells of correspondence, be not it is simple performs switching according to cell physical layer identifiers, but foundation institute State geographical position and at least one cell corresponding to the cell physical layer identifiers that terminal is currently located The relation of signal cover causes asking for call drop come the judgement for switching over so as to avoid handoff failure Topic.

Scene one

Said with reference to situation of the instantiation for the multiple cells of PCI correspondence in adjacent cell list It is bright, that is, solve the problems, such as described in Fig. 2.As shown in fig. 7, carrying out by taking PCI two cells of correspondence as an example Explanation.

Step 701, source base station obtain the geographical location information of each terminal.

Set up in starting up of terminal and with source base station after being connected, terminal can adopt certain location algorithm to calculate Go out the geographical location information of itself, and be updated periodically the geographical location information of oneself, periodically will more New geographical location information reports base station.In addition it is also possible to periodically adopt location algorithm by source base station Calculate the geographical location information that each terminal being connected is set up with source base station.Here geographical location information root May present in a different manner according to location algorithm or scene difference, for example latitude and longitude value (30 ° of N, 120 ° of E) Or relative to reference point base station coordinates position (0, coordinate 0) (40,100).

Source base station after the geographical location information of each terminal is got, can be stored in source base station side every time Terminal geographic position memory.

Step 702, source base station send measuring control information to terminal.The measuring control information can be carried Send in RRC connection reconfiguration messages, the measuring control information includes handover event and handoff threshold etc. Deng.For example：Handover event is A4 events, that is, meet neighboring cell signal quality higher than measurement thresholding.

Step 703, terminal send measurement report to source base station.Measurement report can be carried in RRC connection weights In configuration completion message.

Specifically, terminal performs mobility measurements according to measuring control information, when it is determined that measurement result meets During A4 events, to source base station reporting measurement reports, the measurement report includes meet A4 events at least one Individual PCI and its corresponding signal quality.

Step 704, source base station determine the PCI of a Target cell for meeting switching condition according to measurement report.

Specifically, source base station determines meet switching condition one according to the signal quality in measurement report PCIs of the PCI as Target cell, you can to determine the best PCI of signal quality as Target cell PCI.

Step 705, source base station determine that in the adjacent cell list of the Serving cell of terminal the PCI is corresponding Cell.The corresponding cells of the PCI have two, the PCI phases of CellB and CellC, i.e. CellB and CellC Together, but the Cell Global Identity identification code of CellB and CellC (English：E-UTRAN Cell Global Identity, referred to as：ECGI it is) different.Wherein, save in the adjacent cell list of the Serving cell of terminal The corresponding relation of the PCI and ECGI of each adjacent cell.The current Serving cell of terminal is CellA.Therefore, The cell that the uncertain terminal of source base station is measured is CellB or CellC.

Step 706, source base station inquire about the geographical location information of the terminal from terminal location memorizer, and really Determine the signal cover of CellB and CellC.For example：The ground of the terminal is stored in terminal location memorizer Reason positional information with field UE_Pos_Info, and the corresponding geographical location information of the UE_Pos_Info for (40, -50).Wherein, the signal cover of cell can be stated in the following manner：For example (X, Y, R, θ, β), wherein, (X, Y) represents the coordinate position of signal launch point, and R is covering radius, (θ, The minimum and maximum angle in MPS process direction is represented β).For example：As shown in Figure 8：The cell of CellB Coverage information for (0,0,100, -60,60)；The cell coverage area information of CellC for (- 200, 0,100, -60,60).The position relationship of terminal and two cells is further depict in Fig. 8.In wherein Fig. 8 ENB_1 is source base station, i.e. the serving BS of terminal, is the base station belonging to CellA and CellB, eNB_2 It is the base station belonging to CellC.

Wherein, the source base station determines the signal cover of CellB and CellC, can be according to the source The cell coverage information of base station stored, determines the signal cover of CellB and CellC, and the cell is covered Lid information includes the signal cover information of all cells.For example, the signal cover letter of all cells Breath is pre-configured in each base station.All cells can be for the institute in a city or a section There is cell, can also be all cells in a regional extent of definition etc..

The source base station can be to send inquiry request to network operation maintenance system, and the inquiry request is used for The signal cover of inquiry CellB and CellC；The source base station receives the network operation maintenance system The CellB sent after the inquiry request is received and the signal cover information of CellC.

Step 707, source base station determine the geographical location information of terminal in the signal cover of CellB, Using CellB as switching target small area.

Step 708, terminal, source base station and target BS continue executing with normal switching flow.It is of the invention real It is same base station to apply source base station and target BS in example.

Specifically, terminal is switched to CellB from Serving cell CellA by source base station.Source base station determines terminal Geographical location information positioned at CellB signal cover in, that is, determine CellB be the actual measurement of terminal The Target cell for arriving.

It is assumed that source base station determines that the geographical location information of terminal is not located in the signal cover of CellB It is not in the range of signal of CellC, it is determined that there may be the situation of adjacent area leakage, possible PCI is also The cell of one leakage of correspondence, then can initiate to improve the neighboring BS relationship flow process of CellA, terminal is not held Row switching.

Scene two

Said with reference to situation of the instantiation for PCI one cell of correspondence in adjacent cell list It is bright, as shown in figure 9, solving the problems, such as described in Fig. 1.

Step 901, source base station obtain the geographical location information of each terminal.

Step 902, source base station send measuring control information to terminal.The measuring control information can be carried Send in RRC connection reconfiguration messages, the measuring control information includes handover event and handoff threshold etc. Deng.For example：Handover event is A4 events, that is, meet neighboring cell signal quality higher than measurement thresholding.

Step 903, terminal send measurement report to source base station.Measurement report can be carried in RRC connection weights In configuration completion message.

Step 904, source base station determine the PCI of a Target cell for meeting switching condition according to measurement report.

Step 905, source base station determine that in the adjacent cell list of the Serving cell of terminal the PCI is corresponding Cell.The corresponding cells of the PCI have one, CellB.Wherein, the adjacent cell row of the Serving cell of terminal The corresponding relation of the PCI and ECGI of each adjacent cell is saved in table.The current Serving cell of terminal is CellA。

Step 906, source base station inquire about the geographical location information of the terminal from terminal location memorizer, and really Determine the signal cover of CellB.For example：The geographical position letter of the terminal is stored in terminal location memorizer Breath with field UE_Pos_Info, and the corresponding geographical location information of the UE_Pos_Info for (- 40,0). Wherein, the signal cover of cell can be stated in the following manner：Such as (X, Y, R, θ, β), Wherein, (X, Y) represents the coordinate position of signal launch point, and R is covering radius, and (θ, β) is represented The minimum and maximum angle in MPS process direction.For example：As shown in Figure 10：The cell coverage area of CellB Information for (0,0,100, -60,60)；The position relationship of terminal and two cells is further depict in Figure 10. In wherein Figure 10, serving BSs of the eNB_1 for source base station, i.e. terminal, is belonging to CellA and CellB Base station.

Wherein, the source base station determines the signal cover of CellB, can be stored according to the source base station Cell coverage information, determine the signal cover of CellB, the cell coverage information includes all little The signal cover information in area.For example, the signal cover information of all cells is pre-configured in each In base station.All cells can, for all cells in a city or a section, be can also be All cells in one regional extent of definition etc..

The source base station can be to send inquiry request to network operation maintenance system, and the inquiry request is used for The signal cover of inquiry CellB；The source base station receives the network operation maintenance system and is receiving The signal cover information of the CellB sent after the inquiry request.

Step 907, source base station determine the geographical location information of terminal outside the signal cover of CellB, Forbid performing cell handover operations to the terminal.

Step 908：Source base station initiates the flow process of the adjacent cell list of the Serving cell for improving the terminal.

Source base station determines the geographical location information of terminal outside the signal cover of CellB, it is determined that can Can there is the situation of adjacent area leakage, possible PCI also corresponds to the cell of a leakage, such as shown in Figure 9 CellC, source base station can initiate the neighboring BS relationship flow process for improving CellA.Such as Automatic Neighboring Relation ANR Flow process, Cell_C is added in the Neighboring Cell List of Cell_A.A kind of possible ANR processes are：Source Base station is to UE sending measuring configuration informations, it is desirable to which UE measures the PCI using the PCI that reports as parameter The parameters such as ECGI, TAC, PLMN of corresponding cell；By other base stations, (Figure 10 show terminal ENB_2 broadcast channel) reads the parameter informations such as ECGI, TAC, PLMN identification of Cell_C, These parameter informations will be read and report source base station；The information of newfound Cell C is added to by source base station In the NRT of Cell A.

It is assumed that in the signal cover of CellB, i.e., source base station determines the geographical location information of terminal Determine that CellB is the actual Target cell for measuring of terminal, cell handover operations are performed to the terminal.

Based on the inventive concept same with the embodiment of the method shown in Fig. 4, the embodiment of the present invention additionally provides one The judgment device of cell switching is planted, the device is applied to base station, can specifically be arranged in base station, Huo Zheyou Realize that as shown in figure 11, the device includes in base station：

Transmit-Receive Unit 1101, for the measurement report that receiving terminal sends；

Processing unit 1102, the measurement report for being sent according to the terminal determine the mesh for meeting switching condition The corresponding cell physical layer identifiers of mark cell；Determine the geographical position that the terminal is currently located；And determine institute State cell physical layer identifiers corresponding at least one little in the adjacent cell list of the terminal current service cell The signal cover in area；The geographical position being currently located based on the terminal and the cell physical layer identifiers The relation of the signal cover of corresponding at least one cell, carries out cell switching to the terminal and sentences Certainly.

Alternatively, the Transmit-Receive Unit 1101, is additionally operable to receive the described current institute of the terminal to report Geographical position；

The processing unit 1102 it is determined that the terminal be currently located geographical position when, specifically for root The geographical position that the terminal is currently located is determined according to the geographical location information of the terminal of the terminal to report Put.

Alternatively, the processing unit 1102, it is determined that the terminal be currently located geographical position when, tool Body is used to position the geographical position that the terminal is currently located.

Described device can also include：Memory element 1103, for storing cell coverage information；

The processing unit 1102, it is determined that the letter of corresponding at least one cell of the cell physical layer identifiers During number coverage, specifically for the cell coverage information stored according to the source base station, the cell is determined The signal cover of corresponding at least one cell of physical layer identifications.

Alternatively, the Transmit-Receive Unit 1101, is additionally operable to send inquiry request to network operation maintenance system, The inquiry request is used to inquire about the signal of corresponding at least one cell of the cell physical layer identifiers and covers Scope；The inquiry response that the network operation maintenance system sends is received, in the inquiry response, carries described The signal cover of corresponding at least one cell of cell physical layer identifiers.

Alternatively, in the cell physical layer identifiers multiple cells of correspondence, the processing unit 1102, The geographical position that is currently located based on the terminal is corresponding with the cell physical layer identifiers at least one little The relation of the signal cover in area, when carrying out the judgement of cell switching to the terminal, specifically for：

Alternatively, in the cell physical layer identifiers multiple cells of correspondence, the processing unit 1102 exists The geographical position that is currently located based on the terminal is corresponding with the cell physical layer identifiers at least one little The relation of the signal cover in area, when carrying out the judgement of cell switching to the terminal, specifically for：

Determine that the geographical position that the terminal is currently located is located at least two cells in the plurality of cell Signal cover in；Determine geographical position and at least two cell that the terminal is currently located The distance of signal launch point；Using the signal launch point apart from least two cell nearest cell as Two switching target small areas；Perform from the current service cell for the terminal and be switched to second switching The operation of Target cell.

Alternatively, when the cell physical layer identifiers one cell of correspondence, the processing unit 1102 exists The geographical position that is currently located based on the terminal is corresponding with the cell physical layer identifiers at least one little The relation of the signal cover in area, when carrying out the judgement of cell switching to the terminal, specifically for：

Alternatively, the processing unit 1102, the geographical position being currently located based on the terminal with it is described The relation of the signal cover of corresponding at least one cell of cell physical layer identifiers, is carried out to the terminal During the judgement of cell switching, specifically for：

Alternatively, the processing unit, is additionally operable to it is determined that the geographical position at terminal place is positioned at described When outside the signal cover of all cells at least one cell corresponding to the mark of Target cell, send out Act the flow process for improving the adjacent cell list.

Based on the inventive concept same with the embodiment shown in Fig. 6, the embodiment of the present invention additionally provides a kind of little The judgment device of area's switching, described device are applied to terminal, are specifically as follows the device independently of the terminal, Switch for cell being performed for terminal, or be arranged at the device of terminal inner, can be with by the terminal Realize.As shown in figure 12, the device includes：

Processing unit 1201, is currently located geographical position for positioning the terminal；

Transmit-Receive Unit 1202, the terminal for the processing unit 1201 is positioned are currently located geography Position is sent to source base station, and the geographical position that the terminal is currently located is used for source base station execution cell and cuts The judgement changed.

Alternatively, the processing unit 1201, specifically for periodically positioning what the terminal was currently located Geographical position.

Alternatively, the terminal of positioning is being currently located geographical position transmission by the Transmit-Receive Unit 1202 Before to source base station, it is additionally operable to receive the inquiry request that the source base station sends, the inquiry request is used for Inquire about the geographical position that the terminal is currently located；

The Transmit-Receive Unit 1202, is sent to source base station the terminal of positioning is currently located geographical position When, specifically for inquiry response being sent to the source base station, carry the terminal current in the inquiry response The geographical location information at place.

Alternatively, the Transmit-Receive Unit 1202, is additionally operable to send measurement report, the survey to the source base station The corresponding cell physical layer switching mark of Target cell for meeting switching condition is carried in amount report.

Based on the inventive concept same with the device embodiment shown in Figure 11, the embodiment of the present invention is additionally provided A kind of decision device of cell switching, the equipment can be independently of the equipment of base station, for cutting for cell Change and make decisions, can also be the equipment for being arranged at base station, can be being realized by base station.As shown in figure 13, The equipment includes transceiver 1301, processor 1302, memorizer 1303.Transceiver 1301, processor 1302 And memorizer 1303 is connected with each other.Concrete connection above-mentioned part between is not limited in the embodiment of the present invention Medium.The embodiment of the present invention is in fig. 13 with memorizer 1303, processor 1302 and transceiver 1301 Between connected by bus 1304, bus is represented with thick line in fig. 13, the connection side between other parts Formula, is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data Bus, controlling bus etc..For ease of representing, only represented with a thick line in Figure 13, it is not intended that only There are a bus or a type of bus.

Memorizer 1303 in the embodiment of the present invention, for storing the program code of the execution of processor 1302, can Be volatile memory (English：Volatile memory), such as random access memory (English： Random-access memory, abbreviation：RAM)；Memorizer 1303 can also be nonvolatile memory (English：Non-volatile memory), such as read only memory (English：Read-only memory, Abbreviation：ROM), flash memory (English：Flash memory), hard disk (English：Hard disk drive, Abbreviation：HDD) or solid state hard disc (English：Solid-state drive, abbreviation：) or memorizer SSD 1303 can be used for carrying or storing desired program code energy with instruction or data structure form Enough any other media by computer access, but not limited to this.Memorizer 1303 can be above-mentioned storage The combination of device.

Processor 1302 in the embodiment of the present invention, can be a CPU (English：central Processing unit, abbreviation CPU).

Wherein, the processor 1302, the measurement report for being sent according to the terminal determine satisfaction switching The corresponding cell physical layer identifiers of Target cell of condition；Determine the geographical position that the terminal is currently located； And determine the cell physical layer identifiers in the adjacent cell list of the terminal current service cell it is corresponding extremely The signal cover of a few cell；The geographical position being currently located based on the terminal and the cell thing Reason layer identifies the relation of the signal cover of corresponding at least one cell, carries out cell to the terminal and cuts The judgement changed.

It should be noted that processor 1302 can also carry out 1102 institute of processing unit shown in Figure 11 Other operations for performing, transceiver 1301 can also carry out the Transmit-Receive Unit 1101 shown in Figure 11 and held Other capable operations.

Based on the inventive concept same with the device embodiment shown in Figure 12, the embodiment of the present invention is additionally provided A kind of decision device of cell switching, the equipment can be independently of the equipment of terminal, for cutting for cell Change and make decisions, can also be the equipment being arranged in terminal, can be being realized by terminal.Such as Figure 14 institutes Show, the equipment includes transceiver 1401, processor 1402, memorizer 1403.Transceiver 1401, process Device 1402 and memorizer 1403 are connected with each other.Tool above-mentioned part between is not limited in the embodiment of the present invention Body connects medium.The embodiment of the present invention is in fig. 14 with memorizer 1403, processor 1402 and transceiver Connected by bus 1404 between 1401, bus is represented with thick line in fig. 14, the company between other parts Mode is connect, is only to be schematically illustrated, do not regarded it as and be limited.The bus can be divided into address bus, Data/address bus, controlling bus etc..For ease of representing, only represented with a thick line in Figure 14, but not table Show only one bus or a type of bus.

Memorizer 1403 in the embodiment of the present invention, for storing the program code of the execution of processor 1402, can To be volatile memory, such as random access memory；Memorizer 1403 can also be non-volatile depositing Reservoir (English：Non-volatile memory), such as ROM, flash memory, HDD or SSD, Or memorizer 1403 can be used for carrying or storing the desired journey with instruction or data structure form Sequence code simultaneously can be by any other medium of computer access, but not limited to this.Memorizer 1403 can be with It is the combination of above-mentioned memorizer.

Processor 1402 in the embodiment of the present invention, can be a CPU.

Wherein, the processor 1402, is currently located geographical position for positioning the terminal.The transmitting-receiving Device 1401, is sent to source base station for the terminal of positioning is currently located geographical position, and the terminal is worked as The geographical position at front place is used for the judgement that the source base station performs cell switching.

It should be noted that processor 1402 can also carry out 1201 institute of processing unit shown in Figure 12 Other operations for performing, transceiver 1401 can also carry out the Transmit-Receive Unit 1202 shown in Figure 12 and held Other capable operations.

The embodiment of the present invention additionally provides a kind of decision system of cell switching, can include such as Figure 11 or figure The equipment that embodiment corresponding to 13 is provided, and provide including the embodiment as corresponding to Figure 12 or Figure 14 Equipment.Specifically such as

It should be noted that not to the equipment included by the decision system of cell switching in the embodiment of the present invention Quantity makees concrete restriction.

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

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

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

These computer program instructions can be also loaded in computer or other programmable data processing devices, made Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one The step of function of specifying in flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.

, but those skilled in the art once know base although preferred embodiments of the present invention have been described This creative concept, then can make other change and modification to these embodiments.So, appended right will Ask and be intended to be construed to include preferred embodiment and fall into the had altered of the scope of the invention and change.

Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprising these changes and modification.

Claims

1. the decision method that a kind of cell switches, it is characterised in that include：

2. the method for claim 1, it is characterised in that the source base station determines that the terminal is worked as The geographical position at front place, including：

3. the method for claim 1, it is characterised in that the source base station determines that the terminal is worked as The geographical position at front place, including：

4. the method as described in claims 1 to 3 is arbitrary, it is characterised in that the source base station determines described The signal cover of corresponding at least one cell of cell physical layer identifiers, including：

5. the method as described in claims 1 to 3 is arbitrary, it is characterised in that the source base station determines described The signal cover of corresponding at least one cell of cell physical layer identifiers, including：

6. the method as described in Claims 1 to 5 is arbitrary, it is characterised in that in the cell physical layer mark When knowing the multiple cells of correspondence, geographical position and the cell that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell of physical layer identifications, carries out cell to the terminal The judgement of switching, including：

7. the method as described in Claims 1 to 5 is arbitrary, it is characterised in that in the cell physical layer mark When knowing the multiple cells of correspondence, geographical position and the cell that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell of physical layer identifications, carries out cell to the terminal The judgement of switching, including：

8. the method as described in Claims 1 to 5 is arbitrary, it is characterised in that when the cell physical layer mark When knowing one cell of correspondence, geographical position and the cell that the source base station is currently located based on the terminal The relation of the signal cover of corresponding at least one cell of physical layer identifications, carries out cell to the terminal The judgement of switching, including：

9. the method as described in Claims 1 to 5 is arbitrary, it is characterised in that the source base station is based on described The signal of the geographical position that terminal is currently located at least one cell corresponding with the cell physical layer identifiers The relation of coverage, carries out the judgement of cell switching to the terminal, including：

10. method as claimed in claim 9, it is characterised in that methods described also includes：

11. a kind of decision methods of cell switching, it is characterised in that include：

12. methods as claimed in claim 11, it is characterised in that terminal described in the terminal positioning is worked as Front geographic location, including：

13. methods as described in claim 11 or 12, it is characterised in that the institute that the terminal will be positioned State terminal to be currently located before geographical position is sent to source base station, also include：

14. methods as described in claim 11～13 is arbitrary, it is characterised in that methods described also includes：

15. a kind of judgment devices of cell switching, it is characterised in that described device is applied to source base station, should Device includes：

16. devices as claimed in claim 15, it is characterised in that the Transmit-Receive Unit, are additionally operable to connect Receive the described geographical position being currently located of the terminal to report；

17. devices as claimed in claim 15, it is characterised in that the processing unit, it is determined that institute When stating the geographical position that terminal is currently located, specifically for positioning the geographical position that the terminal is currently located.

18. devices as described in claim 15～17 is arbitrary, it is characterised in that also include：

Memory element, for storing cell coverage information；

The processing unit, it is determined that the signal of corresponding at least one cell of the cell physical layer identifiers covers During lid scope, specifically for the cell coverage information stored according to the memory element, the cell thing is determined Reason layer identifies the signal cover of corresponding at least one cell.

19. devices as described in claim 15～17 is arbitrary, it is characterised in that the Transmit-Receive Unit, also For sending inquiry request to network operation maintenance system, the inquiry request is used to inquire about the cell physics The signal cover of corresponding at least one cell of layer mark；Receive the network operation maintenance system to send Inquiry response, corresponding at least one cell of the cell physical layer identifiers is carried in the inquiry response Signal cover.

20. devices as described in claim 15～19 is arbitrary, it is characterised in that in the cell physical layer During the mark multiple cells of correspondence, the processing unit, the geographical position that is currently located based on the terminal with The relation of the signal cover of corresponding at least one cell of the cell physical layer identifiers, to the terminal When carrying out the judgement of cell switching, specifically for：

21. devices as described in claim 15～19 is arbitrary, it is characterised in that in the cell physical layer During the mark multiple cells of correspondence, the processing unit is in the geographical position and institute being currently located based on the terminal The relation of the signal cover of corresponding at least one cell of cell physical layer identifiers is stated, the terminal is entered During the judgement of row cell switching, specifically for：

22. devices as described in claim 15～19 is arbitrary, it is characterised in that when the cell physical layer During mark one cell of correspondence, the processing unit is in the geographical position and institute being currently located based on the terminal The relation of the signal cover of corresponding at least one cell of cell physical layer identifiers is stated, the terminal is entered During the judgement of row cell switching, specifically for：

23. devices as described in claim 15～19 is arbitrary, it is characterised in that the processing unit, The geographical position that is currently located based on the terminal is corresponding with the cell physical layer identifiers at least one little The relation of the signal cover in area, when carrying out the judgement of cell switching to the terminal, specifically for：

24. devices as claimed in claim 23, it is characterised in that the processing unit, are additionally operable to：

25. a kind of judgment devices of cell switching, it is characterised in that described device is applied to terminal, the dress Put including：

26. devices as claimed in claim 25, it is characterised in that the processing unit, specifically for The geographical position that the terminal is currently located is positioned periodically.

27. devices as described in claim 25 or 26, it is characterised in that the Transmit-Receive Unit, are inciting somebody to action The terminal of positioning is currently located before geographical position is sent to source base station, is additionally operable to：

28. devices as described in claim 25～27 is arbitrary, it is characterised in that the Transmit-Receive Unit, also For to the source base station send measurement report, in the measurement report carry meet switching condition target it is little The corresponding cell physical layer switching mark in area.