CN101772108B - Method, system and device for realizing handoff in micro-micro cellular communication system - Google Patents
Method, system and device for realizing handoff in micro-micro cellular communication system Download PDFInfo
- Publication number
- CN101772108B CN101772108B CN 200810190128 CN200810190128A CN101772108B CN 101772108 B CN101772108 B CN 101772108B CN 200810190128 CN200810190128 CN 200810190128 CN 200810190128 A CN200810190128 A CN 200810190128A CN 101772108 B CN101772108 B CN 101772108B
- Authority
- CN
- China
- Prior art keywords
- base station
- bsc
- femto base
- logic district
- target cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a method, a system and a device for realizing handoff in a micro-micro cellular communication system. The method comprises the following steps: configuring parameters and neighboring cell information on each base station in a base station controller BSC, wherein the neighboring cell information includes corresponding information of a logic cell to which a base station belongs; if a target cell selected by a BSC handoff decision is a micro-micro base station of the BSC and the frequency point and the color code of the micro-micro base station are matched with those of other neighboring cells, changing the target cell into the logic cell to which the base station belongs by the BSC; and when the BSC executing cut-in is informed of the fact that the target cell to be cut into is the logic cell in the cut-in process, instructing a mobile phone to hand off to a common handoff channel of the logic cell, and after an actually accessed micro-micro base station is known, performing the subsequent cut-in operation. The method, the system and the device can support macro-micro handoff, micro-micro handoff and micro-macro handoff simultaneously.
Description
Technical field
The present invention relates to the handoff technique of mobile communication system, relate in particular to the method that realizes the pico-cellular communication system handover.
Background technology
Along with the development of global system for mobile communications GSM network and the segmentation of market application, covering radius is used more and more wider at the GSM femto base station below 100 meters, comprise blind spot covering, enterprises covering and family's covering etc. of public land mobile network (PLMN, Public Land Mobile Network).
For mobile communication system, the handover in the conversation between different base station is basic function.Also be like this for the femto base station system.Such as, when the user enters public network and mends blind femto base station coverage, enterprises femto base station coverage, family femto base station coverage from the macro base station coverage, need grand little handoff functionality in conversation; When the user enters the macro base station coverage from the femto base station coverage in conversation, need little grand handoff functionality; When the user enters another femto base station coverage of same base station controller (BSC, Base Station Controller) from a femto base station coverage, need the inner femto base station handoff functionality of BSC; When the user enters the femto base station coverage of another BSC from a femto base station coverage, need femto base station handoff functionality between the BSC.
And the femto base station system have base station number many, the characteristics such as intensive, plug and play, installation site are variable, Automatic Frequency Planning are installed, these characteristics have brought difficulty for realization and the configuration of above-mentioned four kinds of switchings.Such as: the femto base station number is many, the installation site may change, and causes the workload of human configuration abutting subdistrict huge; The neighbor cell configuration of a macro base station can not be above 64, the adjacent area frequency point information that can carry in the gsm system information broadcast is no more than 124, and have when overlapping when macro base station and femto base station system ovelay range, the femto base station coverage is very little because the macro base station coverage is large, the adjacent femto base station number of macro base station may reach more than 64, even more than 124.
At present the various GSM femto base station systems that provide of industry or do not support handoff functionality perhaps only support little grand switching, perhaps only support little grand switching and slightly switch, and perhaps support grand little switching, but can not support simultaneously grand little switching and slightly switch.
Though more existing technical schemes have proposed the implementation method of grand little switching, can not support simultaneously grand little switching and slightly switching.Because when femto base station is than comparatively dense in mending territory, blind area or enterprise network, the frequency planning the possibility of result of femto base station a femto base station overlay area occurs and has two at least with frequently homochromy adjacent area, (or regionally a) have two with the homochromy adjacent area a of the same frequency of shade (or adjacent area b), just belong to this situation such as femto base station zone b among Fig. 1.This situation can cause the Target cell that switches inaccurate, thereby slight switching can not normally be carried out.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method, system and device of realizing the pico-cellular communication system handover, can support simultaneously little grand switching, grand little switching and slightly switching.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes the pico-cellular communication system handover, comprise: when parameter configuration and neighboring BS information configuration are carried out in each base station in to base station controller BSC, comprise the affiliated corresponding information of logic district in base station; If the Target cell that the BSC switch decision is selected is a femto base station under this BSC, and the frequency of this femto base station and colour coding and other adjacent area be complementary, and then BSC changes Target cell under this femto base station logic district; The BSC that carries out incision learns that in cut process the Target cell that will cut is logic district, then orders first mobile phone to switch to the public switching channels of this logic district, behind the femto base station of knowing the actual access of described mobile phone, carries out follow-up incision operation.
Further, if a femto base station under another BSC of Target cell that the BSC switch decision is selected, then described BSC changes Target cell under this femto base station logic district.
The corresponding information of logic district that comprises when further, the configuration of parameter configuration and neighboring BS information is carried out in each base station in to BSC under the base station specifically comprises:
Be each femto base station when determining at least cellular global identity CGI-A, frequency and colour coding parameter, comprising the global identity CGI-F of the logic district under each femto base station; Frequency and the colour coding in all the femto base station area under one's jurisdictions in the logic district are identical;
In the neighboring BS information of the macro base station adjacent with femto base station, increase at least CGI-F, frequency and the color code information of logic district;
In the neighboring BS information for each femto base station configuration, increase at least sign, frequency and the colour coding of logic district.
Further, BSC learns that the Target cell that will cut is that described logic district and subsequent processing are specially:
The BSC that carries out incision learns that according to switch decision described Target cell is the CGI-F of a logic district, then send the switching command message of the public switching channels information of carrying described logic district to source base station, namely order source base station mobile phone to be switched to the public switching channels of logic district;
BSC is behind the CGI-A of the target femto base station of the actual access of record mobile phone, that successively receives again the target femto base station sets up Indication message and handoff completion message, then send to switch to moving exchanging center MSC and carry out notice, and order source femto base station discharges channel, the process that initiation is switched to the Traffic Channel of target femto base station is finished notice until the target femto base station returns to assign.
Further, BSC learns that the Target cell that will cut is that logic district and subsequent processing are specially:
The BSC that carries out incision receives the handover request message that moving exchanging center MSC sends, and this request message carries the CGI-F of logic district;
BSC directly returns handoff request acknowledgment message to MSC, with the information of the public switching channels of described logic district, namely by MSC order source base station mobile phone is switched to public switching channels in the response message;
Behind the CGI-A of the target femto base station of the actual access of BSC record mobile phone, that successively receives again the target femto base station sets up Indication message and handoff completion message, then send to switch to MSC and finish notice, and order is finished notice at target femto base station distribution service channel until the target femto base station returns to assign.
In order to solve the problems of the technologies described above, the invention provides a kind of system that realizes the pico-cellular communication system handover, comprising: the source base station that cuts out and the target BS of incision and base station controller BSC, wherein:
BSC when carrying out parameter configuration and neighboring BS information configuration for each base station in to base station controller BSC, comprises the affiliated corresponding information of logic district in described base station; The measurement report of transmitting according to described source base station carries out switch decision, and the Target cell of selection switching, if the Target cell of selecting is the femto base station of this BSC jurisdiction, and the frequency of this femto base station and colour coding and other adjacent area are complementary, and then Target cell are changed into logic district under this femto base station; If learning Target cell in cut process is logic district, then order first mobile phone to switch to the public switching channels of this logic district, after the switching detection message of receiving the mobile phone that the target femto base station is transmitted, then carry out follow-up incision operation;
Described target BS is used for transmitting to described BSC the switching detection message of mobile phone, and mobile phone is switched to the public switching channels of described logic district, and carries out follow-up incision operation according to the order of described BSC.
Further, if the Target cell that described BSC selects is a femto base station under another BSC, then described Target cell is changed into the logic district under the described femto base station.
Further, the BSC that carries out incision learns that according to described switch decision described Target cell is logic district, then sends switching command message to source base station, and described message is carried the information of the public switching channels of described logic district; Perhaps, the BSC that carries out incision receives that the handover request message of moving exchanging center MSC carries logic district, then directly returns handoff request acknowledgment message to described MSC, in the described response message with the information of the public switching channels of described logic district;
After the BSC of described execution incision receives described switching detection message, the target femto base station of the actual access of record mobile phone; Receive described target BS set up Indication message and handoff completion message after, send handoff completion message to moving exchanging center MSC, and order source base station release channel, initiate to finish notice to the process of the Traffic Channel switching of described target BS until described target BS returns to assign;
Described target BS, after executing the public switching channels that mobile phone is switched to described logic district, BSC to described execution incision sends described Indication message and the handoff completion message set up, and under the control of described BSC, finishes the switching of described Traffic Channel.
In order to solve the problems of the technologies described above, the invention provides a kind of device of realizing the pico-cellular communication system handover, be used in the base station controller BSC, described device comprises information collocation module, the switch decision module that connects successively and cuts out the incision module, wherein:
Described information collocation module is used for the corresponding information of logic district is included in parameter configuration and the neighboring BS information that each base station in the described BSC is configured, and the described parameter that will configure and the storage of described information;
Described switch decision module is used for carrying out switch decision according to the measurement report that described BSC receives, and selects the Target cell of switching; If the Target cell of selecting is the femto base station of this BSC jurisdiction, and inquire another adjacent area that is complementary with described femto base station area under one's jurisdiction frequency, colour coding, then described Target cell is changed into logic district under the described femto base station, then the selection result of revising is exported to the described incision module that cuts out;
The described incision module that cuts out, at least be in the pattern of cutting out, being used at the Target cell of receiving described selection result is logic district under this BSC, then indicate described BSC to send the order of the public switching channels that carries this logic district to source base station, and indicate described BSC after receiving switching detection message, finish the operation of follow-up incision.
Further,
Described switch decision module also is used for when the Target cell of selecting be the femto base station of another BSC jurisdiction, then described Target cell is changed into logic district under the described femto base station, then the selection result of modification is exported to the described incision module that cuts out;
The described incision module that cuts out is in the pattern that only cuts out, the Target cell that is used in described selection result is logic district under described another BSC, then indicate described BSC to send handover request message to described MSC, carry the public switching channels information of described logic district in the described message; During the switching command of the MSC that receives at described BSC, indicate described BSC to transmit to described source base station;
Perhaps, the described incision module that cuts out is in an incision pattern, be used for after described BSC receives the handover request of described MSC, if the Target cell that request is switched is logic district, then indicate described BSC to send the switching response message of the public switching channels information that carries described logic district to described MSC, and after described BSC receives the corresponding switching detection message of target femto base station, the described target femto base station of the actual access of record mobile phone, then send to switch to described MSC and carry out notice, and to described target femto base station transmitting channel activation command.
Adopt the method, system and device of pico-cellular communication system handover of the present invention, can make the femto base station system support simultaneously grand little switching and slightly switching, and support simultaneously little grand switching, greatly improved thus user's susceptibility, and substantially do not need operating existing network is made amendment, the femto base station system can be used more widely, thereby provide the better network coverage and abundanter business for the user.
Description of drawings
Fig. 1 is that femto base station overlay area of existing frequency planning appearance has two at least with the homochromy adjacent area of frequency schematic diagrames;
Fig. 2 is for describing the schematic diagram of macro base station, logic district and femto base station Relations Among;
Fig. 3 is that pico-cellular communication system of the present invention is realized the method flow diagram that switch the base station;
Fig. 4 is that the present invention realizes grand little base station switching embodiment flow chart;
Fig. 5 is that the present invention realizes that when having homogeneous-frequency adjacent-domain femto base station switches the embodiment flow chart;
Fig. 6 is the apparatus structure block diagram of realization pico-cellular communication system handover of the present invention.
Embodiment
The method of realization pico-cellular communication system handover provided by the invention, its core main points are when parameter configuration and neighboring BS information configuration are carried out in each base station in to BSC, to comprise the corresponding information of logic district; When BSC carried out switch decision select target residential quarter, the Target cell of selecting such as judgement was a femto base station, and the frequency of this femto base station and colour coding and other adjacent area be complementary, and then Target cell was changed into the logic district under this femto base station; If BSC judges Target cell in cut process be logic district, then order first mobile phone to switch to the public switching channels of described logic district, due-in to mobile phone change detection and after knowing the femto base station of the actual access of mobile phone, carry out the follow-up operation that cuts out and/or cut.
Below in conjunction with preferred embodiments and drawings, technique scheme of the present invention is illustrated in greater detail and explains.
Before exemplifying embodiment, first relational languages more of the present invention are carried out following explanation.
As shown in Figure 2, be the schematic diagram that concerns between macro base station, logic district, the femto base station.Large circle represents the coverage of macro base station among the figure.Each little hexagon represents the coverage of a femto base station.And the femto base station that indicates identical English alphabet has identical frequency and colour coding, belongs to same logic district.
CGI: cellular global identity (Cell Global Identifier).Mainly refer in this article the cellular global identity of macro base station.
CGI-F: logic district sign (CGI-Frequency).A logic district is several set with femto base station of identical Common Control Channel (CCCH, Common Control Channel) frequency and same color.
BSC under femto base station disposes several logic district, and the femto base station that comprises of each logic district.
Upper these logic district configure as common cellular global identity (CGI) in mobile switching centre (MSC, Mobile Switch Center).
In the Neighboring Cell List of macro base station, these logic district are joined and be the adjacent area, so that realize switching and gravity treatment from the macro base station to the femto base station.
CGI-A: the cellular global identity of single femto base station (CGI-Air).
Configured the logic district CGI-F under the CGI-A of each femto base station at BSC.
On MSC, do not configure the CGI-A of femto base station.
As shown in Figure 3, for the method flow diagram of realization pico-cellular communication system handover of the present invention, before this flow performing, need to carry out parameter configuration and neighboring BS information configuration to each base station in the BSC, and in configuration, the corresponding information of logic district being included in, namely comprise following deploy content:
(1) determines the parameters such as cellular global identity CGI-A, frequency, colour coding for each femto base station, and determine the CGI-F of the logic district under each CGI-A;
Frequency, the colour coding of all femto base stations in logic district are identical.Can greatly reduce logic district quantity like this, make things convenient for macrocell configuration adjacent district information, and the BSC of operating existing network band macro base station does not need to make any modification and namely can support grand little switching to femto base station.
Above-mentioned these parameters can realize by the Automatic Frequency Planning function of femto base station, also can pass through the backstage human configuration by network planning personnel.In order to reduce maintenance workload, generally adopt the Automatic Frequency Planning function to realize.
(2) information such as the CGI-F of increase logic district, frequency, colour coding in the neighboring BS information of the macro base station adjacent with femto base station;
(3) being each femto base station configuring adjacent cell information, except being another femto base station or the macrocell, can also be a logic district in the adjacent area.
Above-mentioned these neighboring BS information can obtain by the automatic adjacent section function of search of femto base station, also can be by network planning personnel by the backstage human configuration.In order to reduce maintenance workload, generally adopt the automatic adjacent section function of search to obtain.
After carrying out the said system configuration, carry out as follows flow process shown in Figure 3:
201: the base station wherein comprises the adjacent area frequency point information regularly to the mobile phone broadcast system message;
202: the mobile phone in the conversation passes through the base station regularly to the BSC reporting measurement reports;
The signal strength signal intensity, adjacent area frequency, the neighbor base station colour coding that mainly comprise each adjacent area in the measurement report are so that BSC uses when carrying out switch decision.
203:BSC carries out switch decision according to the measurement report that mobile phone reports, and selects the Target cell of switching;
Industry has multiple handoff algorithms.The possibility of result of selecting to switch is the CGI-A of a femto base station, or the CGI of a macro base station, or the CGI-F of a logic district under another BSC, or the CGI-F of a logic district under this BSC.
If 204～208:BSC judges this Target cell and is a femto base station CGI-A of this BSC jurisdiction, then inquire about its data storehouse, judge whether have in the Neighboring Cell List with measurement report in another adjacent area of being complementary of adjacent area (being elected as Target cell by BSC) frequency, colour coding, have then according to this CGI-A and find logic district under this femto base station, and the Target cell that switches is changed into the CGI-F of this logic district; Then not jumping to step 209 carries out; Be a femto base station CGI-A of another BSC jurisdiction if judge this Target cell, then find the CGI-F of logic district under it according to this CGI-A, then enter step 209;
If BSC judges that Target cell is a macro base station, or logic district, if perhaps BSC judges that Target cell is the femto base station under this BSC, and do not inquire and the frequency in this femto base station area under one's jurisdiction and the adjacent area of colour coding coupling, then directly enter step 209;
209:BSC cooperates with MSC and carries out that source base station cuts out, the target BS cut process;
210～214: if the BSC of incision learns that Target cell is the logic district of this BSC, then order first mobile phone to switch to the public switching channels of described logic district, after receiving the change detection that the target femto base station is transmitted, the CGI-A of this femto base station of the actual access of record mobile phone, and finish follow-up cut process; If judge that Target cell is not logic district, then according to target the residential quarter is that femto base station or macro base station carry out in the corresponding BSC or the outer switching of BSC;
215: if end of conversation, then process ends; If conversation does not finish, then go back to step 202 and carry out.
In order to understand better said method of the present invention, the below will exemplify two application examples, and one is to be the logic district under another BSC when Target cell, and switch the outside of initiating; Another then is to be the logic district under this BSC when Target cell, switches and the BSC that initiates is inner.
Example 1
Target cell is the logic district under another BSC, at this moment the outside process that cuts out of switching and common picocellular systems outside switch to cut out process identical, but cut process is more special, describes here with common outside to switch different cut process steps, sees Fig. 4 for details.
Each explanation of nouns is as follows among Fig. 4:
MacroBTS: macro base station, general coverage is more than 1000 meters;
PicoBTS: femto base station, general coverage is in 100 meters;
BSC-macro: this paper refers to the BSC under the macro base station;
BSC-pico: this paper refers to the BSC under the femto base station;
MSC: mobile switching centre.
In the 3rd step among Fig. 4, BSC_pico receives " handover request " message that MSC sends, in the message with be not the CGI-A of a real femto base station, but the CGI-F of a logic district.
After BSC_pico receives this message, do not need to distribute and the activating service channel, but directly return " handover request is replied " message, in the message with the description of the public switching channels of this logic district.Switch to first on this public switching channels by MSC order mobile phone.
The public switching channels of logic district refers to the channel that each base station of this logic district is reserved, and this channel is specifically designed to the incision of processing to logic district.Only have after the Traffic Channel of certain femto base station takes ability public switching channels as voice traffic channel, speech business reverts to again public switching channels after discharging.
In the 7th step, after BSC_pico receives that a picoBTS transmits " change detection " message of mobile phone, the sign CGI-A of the femto base station of the actual access of record mobile phone.
Carry out the order that mobile phone switches to first this public switching channels in the 8th, 9 steps.
In the 10th step, after BSC_pico had sent " switching is finished " message to MSC, order was at the picoBTS distribution service channel of the actual access of mobile phone, and order is changed to mobile phone on this channel in intra-cell.
In the 15th step, when BSC_pico receives " appointment is finished " message, illustrate that switching within cell finishes.
Repeating step 1～15 after switching is finished.
In the 16th step, BSC sends " notice is finished in switching " to picoBTS, so that picoBTS discharges public switching channels, switches for next mobile phone.
Example 2
Target cell is the logic district under this BSC, describes the step different with common inside handoff procedure here, sees Fig. 5 for details.
Each explanation of nouns is as follows among Fig. 5:
Purpose picoBTS: the picoBTS that mobile phone will be resident after switching;
Source picoBTS: resident picoBTS before mobile phone switches;
The 3rd step BSC did not need the distribution service channel among Fig. 5 before source picoBTS sends " switching command " message, in this message be the descriptor of public switching channels.BSC order source picoBTS switches to mobile phone first on this public switching channels.
In the 4th step, after BSC receives that purpose picoBTS transmits " change detection " message of mobile phone transmission, the sign CGI-A of the femto base station of the actual access of record mobile phone.
Carry out the order that mobile phone switches to first this public switching channels in the 5th step.
In the 6th～15 step, BSC receives the backward MSC transmission of " switching is finished " message switching execution notice that purpose picoBTS sends, source of release picoBTS channel, and initiating to the femto base station of the actual access of mobile phone is the process of the Traffic Channel switching of purpose picoBTS.
Repeating step 1～15 after switching is finished.
At last, in the 16th step, BSC sends " notice is finished in switching " to purpose picoBTS, so that purpose picoBTS discharges public switching channels, switches for next mobile phone.
The present invention is directed to said method, correspondingly propose to realize two embodiment of the system of pico-cellular communication system handover, a kind of is to cut out, cut the system that carries out by a BSC, another kind of then be the system that cuts out, cuts respectively by two BSC execution.
Embodiment 3
Realize the system of pico-cellular communication system handover, comprising: the source base station that cuts out and the target BS of incision and BSC, wherein:
Source base station, the measurement report that the mobile phone that is used for conversing reports is transmitted to BSC; When receiving the switching command of BSC, discharge public switching channels, and when the release command of receiving BSC, discharge traffic channel resource.
The signal strength signal intensity, adjacent area frequency, the neighbor base station colour coding that mainly comprise each adjacent area in the above-mentioned measurement report are so that BSC uses when carrying out switch decision.
BSC is used for parameter configuration and neighboring BS information configuration are carried out in each base station, in configuration the corresponding information of logic district being included in, and parameter and the neighboring BS information (Neighboring Cell List) of configuration is stored; Carry out switch decision according to measurement report, and select the Target cell of switching, according to the Target cell that switches, when execution cuts out, send release command to source base station; When carrying out incision, timesharing is to target BS transmitting channel activation command and assign order.
If the Target cell that BSC selects is the femto base station CGI-A of this BSC jurisdiction, and have in the inquiry Neighboring Cell List with measurement report in another adjacent area of being complementary of adjacent area (being elected as Target cell by BSC) frequency, colour coding, then find logic district under this femto base station according to this CGI-A, and the Target cell that switches is changed into the CGI-F of this logic district.If the Target cell of selecting is a macro base station or a logic district under this BSC, if perhaps BSC judges that Target cell is the femto base station under this BSC, and do not inquire and the adjacent area of the frequency in this femto base station area under one's jurisdiction and colour coding coupling, then directly enter and cut out and cut process.
BSC is in cut process, if learning Target cell is the logic district of this BSC, then order source base station mobile phone to be switched to first on the public switching channels of this logic district, after the switching detection message of receiving the mobile phone that the target femto base station is transmitted, the CGI-A of this base station of the actual access of record mobile phone, after sending switching execution notice to moving exchanging center MSC again, send release command to source base station, and first backward target BS transmitting channel activation command and appointment order, and finish follow-up cut process.
Target BS is used for to the switching detection message of MSC forwarding mobile phone; After receiving the channel activation command of BSC, be handset allocation and the activation channel of incision; After the appointment order of receiving BSC, finish the incision operation.
Embodiment 4
Realize the system of pico-cellular communication system handover, comprising: target BS C and the moving exchanging center MSC of the source base station that cuts out and the target BS of incision, the source BSC that cuts out and incision, wherein:
Source base station, the measurement report that the mobile phone that is used for conversing reports is transmitted to source BSC; When receiving the switching command of MSC, discharge public switching channels, and when receiving the release command of source BSC, discharge traffic channel resource.
Source BSC and target BS C all for each base station of jurisdiction being carried out the configuration of parameter configuration and neighboring BS information, in configuration the corresponding information of logic district being included in, and store parameter and the neighboring BS information (Neighboring Cell List) of configuration; Wherein:
Source BSC is used for carrying out switch decision according to measurement report, and selects the Target cell of switching; If the Target cell of selecting be the femto base station CGI-A of another BSC jurisdiction, then find logic district under it according to this CGI-A, and the Target cell that switches is changed into the CGI-F of this logic district, then to MSC transmission handover request; If the Target cell of selecting is macro base station or logic district under another BSC, then directly send handover request to MSC; After receiving the switching command of MSC, transmit to source base station;
MSC is used for the handover request of source BSC is transmitted to target BS C, and after receiving the handoff response that target BS C returns, sends switching command to source BSC, carries the information of public switching channels in the order; After notice was finished in the switching of receiving the target BS transmission, indication source BSC sent release command to described source base station;
Target BS C, be used for after receiving handover request, if the Target cell in the handover request is a logic district, then directly return handoff response to MSC, and mobile phone is switched to first on the public switching channels of this logic district by MSC order source base station, after the switching detection message of receiving the mobile phone that target BS is transmitted, the CGI-A of the target BS of the actual access of record mobile phone, and after receiving the handoff completion message of target BS, transmit to MSC, simultaneously, to target BS transmitting channel activation command and appointment order and follow-up cut process.If the Target cell in the handover request is a base station, then directly command target BS to carry out cut process.
Target BS is used for to the switching detection message of target MSC forwarding mobile phone; After receiving the channel activation command, be handset allocation and the activation channel of incision; After receiving the appointment order, finish the incision operation.
Corresponding to above-mentioned two system embodiments, the invention provides a kind of device of realizing the pico-cellular communication system handover for BSC, as shown in Figure 6, this device 500 comprises information collocation module 510, the switch decision module 520 that connects successively and cuts out cuts module 530, wherein:
Information collocation module 501 is used for parameter configuration and neighboring BS information configuration are carried out in each base station in the BSC, in configuration the corresponding information of logic district being included in, and parameter and the neighboring BS information (Neighboring Cell List) of configuration is stored;
Signal receiving module 510 also cuts out module 530 with incision and is connected, and the measurement report that the mobile phone that the source base station that is used for receiving sends reports is exported to switch decision module 520; The switching detection message of receiving the mobile phone that target BS is transmitted that receives exported to cut out incision module 530; Handover request, the switching command of the MSC that receives exported to cut out incision module 530;
Cut out incision module 530, can be in respectively in three kinds of mode of operations any one: cut out pattern, only cut out pattern and only cut pattern, wherein:
When being in the pattern of cutting out, be used for after the selection result of receiving 520 outputs of switch decision module, if the Target cell of selecting is the logic district under this BSC, then send to source base station mobile phone is switched to order on the public switching channels of this logic district, after the corresponding switching detection message of receiving signal receiving module 510 outputs, the CGI-A of this femto base station of the actual access of record mobile phone, send switching to MSC and carry out notice, send release command to source base station, and first backward target BS transmitting channel activation command and appointment order;
When being in when only cutting out pattern, macro base station or logic district or femto base station under another BSC at the Target cell of selecting, then send handover request to MSC, behind the switching command of the MSC that this BSC receives, transmit this switching command to source base station, if Target cell is logic district, then carry the public switching channels of this logic district in this order, namely order source base station that mobile phone is switched to first this public switching channels.
When being in when only cutting pattern, after the handover request of the MSC that receives signal receiving module 510 outputs, if the Target cell that request is switched is logic district, then send handoff response to MSC, carry the public switching channels of this logic district in the response, namely by MSC order source base station mobile phone is switched to first the public switching channels of this logic district, and after this BSC receives the corresponding switching detection message of target BS, the CGI-A of this femto base station of the actual access of record mobile phone, then send switching to MSC and carry out notice, and order with assigning to target BS transmitting channel activation command.
The present invention can make the femto base station system support simultaneously grand little switching and slightly switch, and support simultaneously little grand switching, greatly improved thus user's susceptibility, and substantially do not need operating existing network is made amendment, the femto base station system can be used more widely, thereby provide the better network coverage and abundanter business for the user.
Claims (11)
1. a method that realizes the pico-cellular communication system handover comprises: when parameter configuration and neighboring BS information configuration are carried out in each base station in to base station controller BSC, comprise the affiliated corresponding information of logic district in described base station; If the Target cell that the BSC switch decision is selected is a femto base station under this BSC, and the frequency of described femto base station and colour coding and other adjacent area be complementary, and then described BSC changes described Target cell under the described femto base station logic district; The BSC that carries out incision learns that in described cut process the Target cell that will cut is described logic district, then order first mobile phone to switch to the public switching channels of described logic district, behind the femto base station of knowing the actual access of described mobile phone, carry out follow-up incision operation.
2. in accordance with the method for claim 1, it is characterized in that, if a femto base station under another BSC of Target cell that described BSC switch decision is selected, then described BSC changes described Target cell under the described femto base station logic district.
3. according to claim 1 or 2 described methods, it is characterized in that, the described corresponding information of logic district that comprises when the configuration of parameter configuration and neighboring BS information is carried out in each base station in to BSC under the described base station specifically comprises:
Be each femto base station when determining at least cellular global identity CGI-A, frequency and colour coding parameter, comprising the global identity CGI-F of the logic district under each femto base station; Frequency and the colour coding in the described femto base station of all in described logic district area under one's jurisdiction are identical;
In the neighboring BS information of the macro base station adjacent with described femto base station, increase at least the described CGI-F of described logic district, described frequency and described color code information;
In the neighboring BS information that is described each femto base station configuration, increase at least global identity CGI-F, frequency and the colour coding of logic district.
4. in accordance with the method for claim 3, it is characterized in that, described BSC learns that the Target cell that will cut is that described logic district and subsequent processing are specially:
When Target cell and cell-of-origin belong to identical BSC, the BSC that carries out incision learns that according to described switch decision described Target cell is the CGI-F of a logic district, then send the switching command message of the public switching channels information of carrying described logic district to source base station, namely order described source base station mobile phone to be switched to the public switching channels of described logic district;
Described BSC is behind the described CGI-A of the target femto base station of the actual access of record mobile phone, that successively receives again described target femto base station sets up Indication message and handoff completion message, then send to switch to moving exchanging center MSC and carry out notice, and order described source base station to discharge channel, the process that initiation is switched to the Traffic Channel of described target femto base station is finished notice until described target femto base station returns to assign.
5. in accordance with the method for claim 3, it is characterized in that, described BSC learns that the Target cell that will cut is that described logic district and subsequent processing are specially:
When Target cell and cell-of-origin belonged to different BSC, the BSC that carries out incision received the handover request message that moving exchanging center MSC sends, and described request message carries the CGI-F of described logic district;
Described BSC directly returns handoff request acknowledgment message to described MSC, with the information of the public switching channels of described logic district, namely by described MSC order source base station mobile phone is switched to described public switching channels in the described response message;
Behind the described CGI-A of the target femto base station of the actual access of described BSC record mobile phone, that successively receives again described target femto base station sets up Indication message and handoff completion message, then send to switch to described MSC and finish notice, and order is finished notice at described target femto base station distribution service channel until described target femto base station returns to assign.
6. system that realizes the pico-cellular communication system handover comprises: the source base station that cuts out and the target BS of incision and base station controller BSC, wherein:
Described BSC when carrying out parameter configuration and neighboring BS information configuration for each base station in to base station controller BSC, comprises the affiliated corresponding information of logic district in described base station; The measurement report of transmitting according to described source base station carries out switch decision, and the Target cell of selection switching, if the Target cell of selecting is the femto base station of this BSC jurisdiction, and the frequency of described femto base station and colour coding and other adjacent area are complementary, and then Target cell are changed into logic district under this femto base station; If learning Target cell in cut process is logic district, then order first the public switching channels that mobile phone is switched to described logic district, after the switching detection message of receiving the mobile phone that the target femto base station is transmitted, carry out follow-up incision operation;
Described target BS is used for transmitting to described BSC after receiving the switching detection message of mobile phone, and mobile phone is switched to the public switching channels of described logic district, and carries out follow-up incision operation according to the order of described BSC.
7. according to system claimed in claim 6, it is characterized in that, if the Target cell that described BSC selects is a femto base station under another BSC, then described Target cell is changed into the logic district under the described femto base station.
8. according to claim 6 or 7 described systems, it is characterized in that,
When Target cell and cell-of-origin belong to identical BSC, the BSC that carries out incision learns that according to described switch decision described Target cell is logic district, then send switching command message to source base station, described message is carried the information of the public switching channels of described logic district;
After the BSC of described execution incision receives described switching detection message, the target femto base station of the actual access of record mobile phone; Receive described target BS set up Indication message and handoff completion message after, send switching to moving exchanging center MSC and carry out notice, and order source base station release channel, initiate to finish notice to the process of the Traffic Channel switching of described target BS until described target BS returns to assign;
Described target BS, after executing the public switching channels that mobile phone is switched to described logic district, BSC to described execution incision sends described Indication message and the handoff completion message set up, and under the control of described BSC, finishes the switching of described Traffic Channel.
9. according to claim 6 or 7 described systems, it is characterized in that:
When Target cell and cell-of-origin belong to different BSC, the BSC that carries out incision receives that the handover request message of moving exchanging center MSC carries logic district, then directly return handoff request acknowledgment message to described MSC, in the described response message with the information of the public switching channels of described logic district;
After the BSC of described execution incision receives described switching detection message, the target femto base station of the actual access of record mobile phone; Receive described target BS set up Indication message and handoff completion message after, send to switch to moving exchanging center MSC and to finish notice, and order is finished notice at described target femto base station distribution service channel until described target BS returns to assign;
Described target BS, after executing the public switching channels that mobile phone is switched to described logic district, BSC to described execution incision sends described Indication message and the handoff completion message set up, and under the control of described BSC, finishes the switching of described Traffic Channel.
10. device of realizing the pico-cellular communication system handover is used for it is characterized in that in the base station controller BSC, and described device comprises information collocation module, the switch decision module that connects successively and cut out the incision module, wherein:
Described information collocation module is used for the corresponding information of logic district is included in parameter configuration and the neighboring BS information that each base station in the described BSC is configured, and the described parameter that will configure and the storage of described neighboring BS information;
Described switch decision module is used for carrying out switch decision according to the measurement report that described BSC receives, and selects the Target cell of switching; If the Target cell of selecting is the femto base station of this BSC jurisdiction, and inquire another adjacent area that is complementary with described femto base station area under one's jurisdiction frequency, colour coding, then described Target cell is changed into logic district under the described femto base station, then the selection result of revising is exported to the described incision module that cuts out;
The described incision module that cuts out, at least be in the pattern of cutting out, being used at the Target cell of receiving described selection result is logic district under this BSC, then indicate described BSC to send the order of the public switching channels that carries this logic district to source base station, and indicate described BSC after receiving switching detection message, finish the operation of follow-up incision.
11. according to device claimed in claim 10, it is characterized in that,
Described switch decision module also is used for when the Target cell of selecting be the femto base station of another BSC jurisdiction, then described Target cell is changed into logic district under the described femto base station, then the selection result of modification is exported to the described incision module that cuts out;
The described incision module that cuts out is in the pattern that only cuts out, the Target cell that is used in described selection result is logic district under described another BSC, then indicate described BSC to send handover request message to MSC, carry the public switching channels information of described logic district in the described message; When described BSC receives the switching command of described MSC, indicate described BSC to transmit to described source base station;
Perhaps, the described incision module that cuts out is in an incision pattern, be used for after described BSC receives the handover request of described MSC, if the Target cell that request is switched is the logic district of this BSC, then indicate described BSC to send the switching response message of the public switching channels information that carries described logic district to described MSC, and after described BSC receives the corresponding switching detection message of target femto base station, the described target femto base station of the actual access of record mobile phone, then send to switch to described MSC and carry out notice, and to described target femto base station transmitting channel activation command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810190128 CN101772108B (en) | 2008-12-31 | 2008-12-31 | Method, system and device for realizing handoff in micro-micro cellular communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810190128 CN101772108B (en) | 2008-12-31 | 2008-12-31 | Method, system and device for realizing handoff in micro-micro cellular communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101772108A CN101772108A (en) | 2010-07-07 |
| CN101772108B true CN101772108B (en) | 2013-03-27 |
Family
ID=42504603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810190128 Expired - Fee Related CN101772108B (en) | 2008-12-31 | 2008-12-31 | Method, system and device for realizing handoff in micro-micro cellular communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101772108B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413526B (en) * | 2010-09-21 | 2014-08-13 | 中兴通讯股份有限公司 | Method for selecting switching object cell and base station controller |
| CN102469557B (en) | 2010-11-15 | 2014-08-13 | 华为技术有限公司 | Method for accessing base station, base station and user equipment |
| CN102984771B (en) * | 2012-12-14 | 2016-03-09 | 京信通信系统（中国）有限公司 | The Intra-cell handover method that a kind of cellulor dense set is off the net and device |
| SG10201701222QA (en) * | 2012-12-28 | 2017-04-27 | Nec Corp | Radio communication system, radio station, radio terminal, communication control method, and computer-readable medium |
| CN104144459B (en) * | 2013-05-08 | 2017-11-21 | 成都鼎桥通信技术有限公司 | The method and apparatus of home cell is moved to from public network cell |
| CN103298044B (en) * | 2013-07-04 | 2016-03-30 | 京信通信技术(广州)有限公司 | A kind of method and device distributing switching channels |
| CN103650585B (en) * | 2013-07-08 | 2017-11-21 | 华为技术有限公司 | A kind of method and apparatus of cell switching |
| CN106028365A (en) * | 2015-03-20 | 2016-10-12 | 中兴通讯股份有限公司 | Base station configuration method and device |
| CN109963313B (en) * | 2017-12-26 | 2021-08-24 | 海能达通信股份有限公司 | Channel recovery method and device after intra-system and inter-system handover |
| CN108537909A (en) * | 2018-03-23 | 2018-09-14 | 广州米度信息科技有限公司 | A kind of the personnel's detection method and big data analysis system of unaware |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411670A1 (en) * | 2002-10-17 | 2004-04-21 | Alcatel | A hybrid UMTS/WLAN telecommunications system |
| CN1941989A (en) * | 2005-09-29 | 2007-04-04 | 普天信息技术研究院 | Method for updating single-carrier frequency domain to multi-carrier frequency domain |
| CN101052205A (en) * | 2006-04-04 | 2007-10-10 | 中兴通讯股份有限公司 | User's terminal switch control method in mobile communication system |
-
2008
- 2008-12-31 CN CN 200810190128 patent/CN101772108B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411670A1 (en) * | 2002-10-17 | 2004-04-21 | Alcatel | A hybrid UMTS/WLAN telecommunications system |
| CN1941989A (en) * | 2005-09-29 | 2007-04-04 | 普天信息技术研究院 | Method for updating single-carrier frequency domain to multi-carrier frequency domain |
| CN101052205A (en) * | 2006-04-04 | 2007-10-10 | 中兴通讯股份有限公司 | User's terminal switch control method in mobile communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101772108A (en) | 2010-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101772108B (en) | Method, system and device for realizing handoff in micro-micro cellular communication system | |
| CN101568196B (en) | Method and device for distributing physical cell identifiers | |
| CN101754306B (en) | Switching processing method, femtocell gateway and network system | |
| CN101409920B (en) | Method, system and relevant equipment for updating neighboring area list | |
| RU2486701C2 (en) | Pilot signal set management in multi-carrier communication system | |
| CN100551121C (en) | The method of mobile terminal skip zone autonomous switching | |
| CN101466125A (en) | Switch processing method, household base station gateway and network system | |
| CN102037759B (en) | Scrambling code selection for a femtocell base station | |
| US20050288017A1 (en) | Method and system for calculating the 2G-3G neighborhood for an automatic transfer of connection between 2G and 3G systems | |
| CN101888639B (en) | Method and device for controlling user equipment to reside in cell | |
| CN102088685B (en) | Network side device and method for updating system information block (SIB) | |
| CN106686607B (en) | Communication network, service access method and related device | |
| WO2014087392A2 (en) | A method for managing heterogeneous cellular networks | |
| KR20120094748A (en) | Method and apparatus for controlling handover considering femto cell interference | |
| CN101562834A (en) | Method and system supporting macro base station to be switched over to household base station | |
| CN103442402B (en) | A kind of method, apparatus and system of adjacent area switching | |
| CN103379562A (en) | PLMN selection method, mobile terminal, BSC and core network equipment | |
| CN101835168A (en) | Method, device and system for performing processing by using terminal history information | |
| WO2002043430A1 (en) | Base station identification | |
| CN101312594B (en) | Switch method, communication system and apparatus | |
| CN102036327B (en) | Method for switching UE (User Equipment) from outdoor base station to indoor base station in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) | |
| CN103220684A (en) | Method, equipment and system for mobile communication based on common cell signal coverage | |
| GB2443236A (en) | Scrambling code assignment in a cellular communication system | |
| CN100578967C (en) | T cell parameter distribution method for increasing synchronous performance of radio access network | |
| WO2010060368A1 (en) | Neighbor cell configuration method, access point device and control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20171231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |