CN104811924B - The management method of user equipment historical information for doubly-linked welding system - Google Patents
The management method of user equipment historical information for doubly-linked welding system Download PDFInfo
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- CN104811924B CN104811924B CN201410035822.3A CN201410035822A CN104811924B CN 104811924 B CN104811924 B CN 104811924B CN 201410035822 A CN201410035822 A CN 201410035822A CN 104811924 B CN104811924 B CN 104811924B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of management methods of the user equipment historical information in doubly-linked welding system, including:The historical information of the user equipment is collected and stores, wherein the historical information includes the information of the information and the cell at the prothetic group station as secondary cell of the cell of the master base station as main plot;Wherein, past access cell list and the past information of the main plot and secondary cell being stored in the form of independent cell in the historical information access in cell information.The present invention, which realizes, completely records the historical information of user equipment, can accurately estimate mobile status/speed of user equipment, to optimize configuration to whole network.
Description
Technical field
The present invention is generally related to wireless communication field, more specifically, is related to setting for the user of doubly-linked welding system
The mechanism of standby historical information.
Background technology
In a network, the historical information of user equipment (User Equipment, UE) can be used for estimating the mobile speed of UE
Degree/state, this is highly useful for the relevant parameter that network settings and mobile management such as switch, because of mobility
The setting of these parameters can closely be depended on.The corresponding parameter of setting can be optimized to the user with friction speed.
In addition, in the mobile status estimation (Mobility State Estimation, MSE) of the prior art, the shifting in heterogeneous network
It is accurate that the accuracy of the estimation of dynamic state is not so good as the estimation of mobile status in the homogeneous network of only macrocell.In addition, existing
It is to have to provide mobile message when thinking that idle (idle) state is converted to connection status in the RAN2 standardization of 3GPP very much
(past user only records user history information when connection status switches) of benefit.When user switchs to connection status from the free time
When, accessed cell history will be reported to network.It can be seen that the importance of mobile status and user history information.User equipment
(UE) historical information is included in switching request, which is sent to target BS by source base station (Source eNB)
(Target eNB), to ask the resource for switching.
In doubly-linked welding system, there are two connections for UE tools:UE is connected to macrocell (Macro Cell), to keep movement
Robustness, and cell (small cell) is connected to have the function that shunting to improve capacity.Fig. 1 is in the prior art
UE connection diagrams in the cell.If UE does not support dual link, when UE is moved to the position of diagram, i.e., in small cell
When, UE will switch and be connected to cell, therefore the mark (ID) of cell and time wherein will be collected and will be stored in
In the historical information of UE.If UE supports dual link, UE that will keep connecting with macrocell always, and without switching to cell,
Network will add cell as secondary cell, to shunt load.Since the cell information with UE dual links cannot be recorded simultaneously,
Therefore it can not accurately estimate UE mobile status, to parameter configurations of the UE in Target cell nor optimal configuration, especially
It is when cannot achieve dual link or network decision does not configure UE to dual link pattern.
Invention content
In view of the above problems, the present invention provides a kind of mechanism, to provide the historical information of UE in doubly-linked welding system.It is logical
This mechanism is crossed, system can efficiently perform the parameter configuration of MSE and optimization system.
The present invention proposes a kind of management method of the user equipment historical information in doubly-linked welding system, including:It collects simultaneously
The historical information of the user equipment is stored, wherein the historical information includes the information of the cell of the master base station as main plot
With the information of the cell at the prothetic group station as secondary cell;Wherein, by the information of the main plot and secondary cell with independent cell
Form is stored in the access cell list of the past in the historical information and accesses in cell information in the past.
By the above process, it can realize that the main plot accessed the history of user equipment, secondary cell carry out completely
Statistics, and then the mobile status of user equipment can accurately be estimated.
Preferably, the cell information of access in the past includes global cell identity, cell type, the user equipment small
Residence time in area and cause switching value, wherein by causing switching value that the prothetic group station is marked described in addition.
In this way, can be recorded to the information of the prothetic group station SeNB of secondary cell.
Preferably, it is " the prothetic group station in dual link " that switching value will be caused, which to increase,.
Preferably, when master base station transmission addition request to the prothetic group station or master base station completion will be described auxiliary
When the cell of base station is added to secondary cell, when stop of the user equipment described in the master base station start recording in the secondary cell
Between and the secondary cell mark;Wherein, cell of the addition request for adding the prothetic group station is secondary cell.
Preferably, when the master base station determines that discharging the prothetic group station or the master base station receives from the prothetic group
When the release request stood, residence time of the user equipment in the secondary cell described in the master base station stop recording, and by institute
The information for stating secondary cell is recorded in the historical information;Wherein, release request for discharge the auxiliary base station cell with
The connection of the user equipment.
When master base station decision switches to target master base station, the target is handovered request to by master base station transmission
Master base station, wherein the switching request includes the historical information.
Preferably, if master base station decision switches to target master base station, and the user equipment remains able to connect
When to the prothetic group station, after the completion of the switching, continue to collect the user equipment described by the target master base station
Residence time in prothetic group station, until the user equipment is disconnected with the prothetic group station.
Preferably, the target master base station is handovered request to by master base station transmission, wherein the switching request includes
The historical information.
Preferably, the cell information that accesses in the past further includes that the enhancing granularity of the user equipment in the cell stops
Time.
The mechanism of UE historical informations in the doubly-linked welding system proposed through the invention, communication network can be recorded completely
The base station information that UE history was accessed or connected includes the information of the main plot of connection and secondary cell, so as to effective
Ground executes MSE, and optimizes the parameter configuration of network.In the present invention, the historical information of UE include its stopped it is all
Cell (either single connection state or dual link state), is estimated by accurate mobile status, and network can carry out most UE
The configuration of optimization.
Description of the drawings
After description by reference to the specific implementation mode of the present invention given by following drawings, it is better understood with this
Invention, and other objects of the present invention, details, features and advantages will become apparent.In the accompanying drawings:
Fig. 1 is the connection diagrams of UE in the prior art in the cell;
Fig. 2 be according to the present invention embodiment in same master base station cell, UE switches auxiliary base station cell schematic diagram;
Fig. 3 be according to the present invention embodiment in same master base station cell, UE is in the overlapping region of auxiliary base station cell
Schematic diagram;
Fig. 4 is schematic diagrames of the UE in master base station handover between cells of embodiment according to the present invention.
Specific implementation mode
The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure without the embodiment party that should be illustrated here
Formula is limited.On the contrary, these embodiments are provided so that the disclosure is more thorough and complete, and can be by the disclosure
Range is completely communicated to those skilled in the art.
Usually, UE historical informations include information about the respective cells accessed the UE, the respective cell refer to
Before Target cell and UE is in the cell of connection (active) state wherein.UE historical informations further include:Past accesses
Cell list (Last Visited Cell List) and in the past access cell information (Last Visited Cell
Information), wherein it includes global cell identity (Global Cell ID), cell type that the past, which accesses cell information,
The granularity enhancing of (Cell Type), UE residence time (Time UE stayed in Cell) in the cell, UE in the cell
Change the residence time (Time UE stayed in Cell Enhanced Granularity) and causes switching value (HO
Cause Value)。
In TS36.300, following mechanism is described:
As long as UE is located in one of source base station cell, source base station is just collected and stores the historical information of UE.Work as row
Table has been used full, and when needing to delete some information, these information will be removed by the sequence of its position in lists, from most
The cell early recorded starts.By interface S1 and X2 transmission history information, and by it in subsequent switching preparation, this to be mesh
Mark base station provides the list of the cell previously accessed and relevant information.Switching preparation routine also triggers target BS and goes out
Begin to collect and store UE historical informations, and therefore transmits collected information.
Above-mentioned technical proposal is only applicable to single connection system, and in doubly-linked welding system, UE is connected to master base station simultaneously
(MeNB) and prothetic group station (SeNB), above-mentioned technical proposal record the letter of MeNB and SeNB cells there is no solution simultaneously
Breath.If only the information of record MeNB cells, that will be unable to accurately estimate mobile status to configure systematic parameter, also
It is to say in the prior art, the user history information of doubly-linked welding system is incomplete.
In order to completely record the user history information of doubly-linked welding system, it would be desirable to define in doubly-linked welding system
The mechanism of UE historical informations.
In doubly-linked welding system, being connected to the historical information of SeNB and MeNB simultaneously about UE will be collected and be recorded in UE
In historical information.As long as establishing connection in one of UE and source base station cell, source base station is just collected and stores the history of UE
Information, so as to as in single connection scheme, obtain the historical information of complete UE, so as to be carried out to user velocity
Accurately estimate.
In the present embodiment, using method identical with single connection transmission method to the UE historical informations in doubly-linked welding system into
Row transmission.UE historical informations are included in switching request, which is sent to target BS by source base station, to ask resource to be cut
The preparation changed.In addition, UE historical informations include not only about before Target cell, UE be wherein connection status MeNB
The information of cell also includes the information of the cell about SeNB.
In the past in being contained in UE historical informations accesses cell list and accesses cell information in the past, by MeNB cells
It is stored respectively with independent cell form information with the information of SeNB cells.The past accesses cell information:Entirely
Office's cell ID, cell type, UE residence times in the cell, UE enhancing granularity residence time in the cell and cause
Switching value.For SeNB, cause switching value that can increase for " prothetic group station (the SeNB in Dual in dual link
Connectivity) ", so as to which SeNB is marked, convenient for record.
By aforementioned it is found that in doubly-linked welding system, accurately estimated in order to mobile status/speed to UE
Meter, needs the information for recording the base station being connect with UE as completely as possible, that is, need the MeNB that was connect with UE of record and
The information of SeNB.The historical information for how recording two kinds of eNB is illustrated individually below.
In the present embodiment, the process for recording the historical information of MeNB is consistent with recording process in single connection system, i.e., logical
It crosses source base station (Source eNB) transmission and handovers request to target BS (Target eNB), start to search to trigger target BS
Collect and store UE historical informations, and receives the historical information of the UE being included in switching request from source base station.
For SeNB, when MeNB successfully complete for UE by the cell of new SeNB increase for secondary cell when, or hair
It send when increasing request to the SeNB to be added, MeNB starts to collect UE residence time and secondary cell in the SeNB cells
ID.If MeNB determine discharge the SeNB, or receive from SeNB release request when, MeNB will complete for resting on
The record of the time of the secondary cell, and will be in historical information of all packets contained in UE.If MeNB is determined to switch to
Target cell (i.e. another MeNB), and the UE remains able to keep connecting with the SeNB currently connecting, and the target is small
It will continue to collect the historical informations such as the residence times of cell of the UE in SeNB, directly after UE completes to switch to Target cell in area
It is disconnected to UE and SeNB.
In order to it is apparent, visually illustrate present disclosure, please refer to Fig. 2-4.
Fig. 2 be according to the present invention embodiment in same master base station cell, UE switches auxiliary base station cell schematic diagram.
As shown in Fig. 2, UE is located in master base station MeNB1 cells, then MeNB1 will collect the historical information of UE, for example, global
Cell ID, cell type, UE residence time in the cell, UE enhancing granularity residence time in the cell and cause
Switching value.
When A points when UE is moved to the edge of prothetic group station SeNB1 cells, such as in figure, master base station MeNB1 will be prothetic group
The cell of SeNB1 of standing will be added to the secondary cell of UE, and count relevant informations of the UE in the secondary cell.
Can be specifically that master base station MeNB1 can send addition request to prothetic group station SeNB1 or master base station MeNB1 completions
When the cell of prothetic group station SeNB1 is added to secondary cell (receiving the feedback from prothetic group station SeNB1), master base station MeNB1
The mark of residence times and prothetic group station SeNB1 cell of the start recording UE in the cell of prothetic group station SeNB1.In order to auxiliary small
Area is marked, and can increase and cause switching value, can be for example " the prothetic group station in dual link ".
As UE is moved to prothetic group station SeNB1 in master base station MeNB1 cells (while being also the cell of prothetic group station SeNB1)
Cell edge when, need to discharge prothetic group station SeNB1.For the process of release, when master base station MeNB1 determines release prothetic group
Stand SeNB1 when or master base station MeNB1 receive from prothetic group station SeNB1 release request when, master base station MeNB1 by stop remember
Residence times of the UE in the SeNB1 cells of prothetic group station is recorded, and information of the UE in secondary cell is recorded in historical information.It can be with
Understand, the connection of cell of the release request for disconnecting UE and prothetic group station SeNB1.
Therefore, the historical information of UE at this time includes:(1) information of master base station MeNB1 cells;(2) prothetic group station SeNB1 is small
The information in area.
As UE is moved in master base station cell, UE is moved to the cell edge of prothetic group station SeNB2, for example B points, master base station
MeNB1 executes aforementioned process again, that is, the cell for adding prothetic group station SeNB2 is new secondary cell, and is recorded in UE in secondary cell
In historical information.
Equally, with UE prothetic group station is moved in master base station MeNB1 cells (while being also the cell of prothetic group station SeNB2)
When the cell edge of SeNB2, need to discharge prothetic group station SeNB2.When master base station MeNB1 determines release prothetic group station SeNB2,
Or master base station MeNB1, when receiving the request of the release from prothetic group station SeNB2, master base station MeNB1 is by stop recording user equipment
Residence time in secondary cell, and information of the UE in secondary cell is recorded in historical information.It is understood that release
Ask the connection of the cell for disconnecting UE and prothetic group station SeNB2.
At this point, the historical information of UE includes:(1) information of master base station MeNB1 cells;(2) letter of prothetic group station SeNB1 cells
Breath;(3) information of prothetic group station SeNB2 cells.
In certain occasions, the cell at prothetic group station is it is possible that the phenomenon that as shown in Figure 3 overlapping (overlap).Fig. 3
It is embodiment according to the present invention in same master base station cell, UE is in the schematic diagram of the overlapping region of auxiliary base station cell.
At this point, UE is located at the overlapping position of cell of prothetic group station SeNB1 and prothetic group station SeNB3, for example C points.For doubly-linked
Welding system, UE can only select one in base station SeNB1, SeNB3 and be attached as prothetic group station.Therefore, for SeNB1,
Overlapping situation occurs for SeNB3 cells, master base station MeNB1 can make last decision add which base station (SeNB1 or
SeNB3 base station supplemented by).For example selecting SeNB1 as prothetic group station, master base station MeNB1 executes aforementioned process, that is, adds prothetic group again
The cell of SeNB1 of standing is new secondary cell, and is recorded in the historical information of UE in secondary cell.As UE is in master base station MeNB1 cells
When being moved to the cell edge of prothetic group station SeNB1 in (while being also the cell of prothetic group station SeNB1), need to discharge prothetic group station
SeNB1.When master base station MeNB1 determines release prothetic group station SeNB1 or master base station MeNB1 is received from prothetic group station SeNB1's
When release request, residence times of the master base station MeNB1 by stop recording user equipment in secondary cell, and by UE in secondary cell
Information be recorded in historical information.It is understood that cell of the release request for will be switched off UE and prothetic group station SeNB1
Connection.
Fig. 4 is schematic diagrames of the UE in master base station handover between cells of embodiment according to the present invention.
When UE is by the cell for switching to master base station MeNB2 from the cell of master base station MeNB1, master base station MeNB1 will terminate
Information Statistics to the UE in the cell of master base station MeNB1, and send and handover request to target comprising UE historical informations
Master base station MeNB2, to ask the preparation of resource switch.
In order to allow master base station MeNB2 that can obtain complete UE historical informations, the UE that the cell of master base station MeNB1 is sent is gone through
History information includes:(1) information of master base station MeNB1 cells;(2) information of prothetic group station SeNB1 cells;(3) prothetic group station SeNB2 is small
The information in area;(4) information of prothetic group station SeNB4 cells.
If UE remains to keep connecting with current secondary cell at this time, for example UE will move to prothetic group station SeNB4 cells and mesh
When marking the overlapping region of base station (i.e. master base station MeNB2) cell, switching is main base by master base station MeNB1 by the main plot for determining UE
It stands the cell of MeNB2, therefore transmission is handovered request to master base station MeNB2 by master base station MeNB1.The switching request includes above-mentioned
The historical information of UE.After UE completes the process of switching main plot (i.e. UE is formed with master base station MeNB2 and connected), since it is still located
In the cell of prothetic group station SeNB4, for example D points in figure, that carry out dual link with UE at this time is master base station MeNB2 and prothetic group station
The cell of SeNB4, prothetic group station SeNB4 are still the secondary cell of UE, therefore master base station MeNB2 will continue to collect UE at prothetic group station
Residence time in SeNB4 cells, until UE and prothetic group station SeNB4 is disconnected.
By above-mentioned method, the link information of prothetic group station SeNB4 cells of the UE in master base station MeNB1 cells also can
It is enough received by master base station MeNB2, to ensure that UE historical information integrality.
The present invention proposes a kind of mechanism providing UE historical informations in doubly-linked welding system.Pass through this mechanism, communication
Network can completely record " information of the cell information of the work in dual link i.e. MeNB and SeNB ", so as to effectively
MSE is executed, and optimizes the parameter configuration of network.
It is understood that the system that the above is readily applicable to more than two connections.In addition, Fig. 2-4 is only arranged
Relatively conventional scene is lifted, but the method for the present invention is also applied for other unlisted scenes, for example more than two MeNB
And/or the situation that SeNB cells overlap etc..
In the present invention, the historical information of UE includes all cell (either single connection states or double that it was stopped
Connection status, including master base station cell and auxiliary base station cell), therefore, the configuration that network can be optimized.Through the invention
Method, the cell of all connections will be recorded, and be capable of providing enough information for moving speed estimation.In addition, for low
Background traffic business, mobile message will indicate (PPI with power preference:Power Preference Indication) combine and makes
With.In view of the business shunted by SeNB is substantially (best effort) business of doing one's best, these information are to network side
Resource distribution is highly useful.
Those of ordinary skill in the art should also understand that, the various illustrative logics described in conjunction with embodiments herein
Electronic hardware, computer software or combination may be implemented into block, module, circuit and algorithm steps.In order to understand earth's surface
Show this interchangeability between hardware and software, various illustrative components, block, module, circuit and step are enclosed above
General description has been carried out around its function.It is implemented as hardware as this function and is also implemented as software, depends on specific
Using and apply design constraint over the whole system.Those skilled in the art can be directed to each specific application, to become
Logical mode realizes described function, and still, this realization decision should not be interpreted as causing a departure from the scope of this disclosure.
Claims (9)
1. a kind of management method of the user equipment historical information in doubly-linked welding system, including:
The historical information of the user equipment is collected and stores, wherein the historical information includes the master base station as main plot
The information of the information of cell and the cell at the prothetic group station as secondary cell;
Wherein, the past information of the main plot and secondary cell being stored in the form of independent cell in the historical information
It accesses cell list and accesses in cell information in the past.
2. management method as described in claim 1, which is characterized in that the cell information that accesses in the past includes global cell mark
Knowledge, cell type, the user equipment residence time in the cell and cause switching value, wherein by causing described in addition
The prothetic group station is marked in switching value.
3. management method as claimed in claim 2, which is characterized in that switching value will be caused to be added to the prothetic group in dual link
It stands.
4. management method as described in claim 1, which is characterized in that further include:
It completes to add the cell at the prothetic group station when the master base station sends addition request to the prothetic group station or the master base station
When adding as secondary cell, residence time of the user equipment described in the master base station start recording in the cell at the prothetic group station and
The mark of the cell at the prothetic group station;
Wherein, cell of the addition request for adding the prothetic group station is secondary cell.
5. management method as described in claim 1, which is characterized in that further include:
When the master base station determines that discharging the prothetic group station or the master base station receives the request of the release from the prothetic group station
When, residence time of the user equipment in presently described secondary cell described in the master base station stop recording, and the user is set
The standby information storage in presently described secondary cell is in the historical information;
Wherein, connection of the release request for discharging the auxiliary base station cell and the user equipment.
6. management method as described in claim 4 or 5, which is characterized in that further include:
When master base station decision switches to target master base station, the main base of the target is handovered request to by master base station transmission
It stands, wherein the switching request includes the historical information.
7. management method as described in claim 1, which is characterized in that if master base station decision switches to target master base station,
And when the user equipment remains able to keep connecting with the prothetic group station currently connecting, after the completion of the switching, by
The target master base station continues to collect and store residence time of the user equipment in the prothetic group station, until the user
Equipment is disconnected with the prothetic group station.
8. management method as claimed in claim 7, which is characterized in that handover request to the target by master base station transmission
Master base station, wherein the switching request includes the historical information.
9. management method as claimed in claim 2, which is characterized in that the cell information that accesses in the past further includes the user
The enhancing granularity residence time of equipment in the cell.
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CN102457918A (en) * | 2010-10-20 | 2012-05-16 | 华为技术有限公司 | Method and device for determining target cell |
CN102761887A (en) * | 2011-04-29 | 2012-10-31 | 普天信息技术研究院有限公司 | Method for obtaining moving state of UE (User Equipment) |
CN102769877A (en) * | 2011-05-04 | 2012-11-07 | 中兴通讯股份有限公司 | Cell switching method and base station |
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