CN101742574A - Method for reselecting home base station cells and terminal - Google Patents
Method for reselecting home base station cells and terminal Download PDFInfo
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- CN101742574A CN101742574A CN200810169197A CN200810169197A CN101742574A CN 101742574 A CN101742574 A CN 101742574A CN 200810169197 A CN200810169197 A CN 200810169197A CN 200810169197 A CN200810169197 A CN 200810169197A CN 101742574 A CN101742574 A CN 101742574A
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Abstract
The invention discloses a method for reselecting home base station cells and a terminal. The method comprises that: before reading the broadcast of a target home base station cell, a terminal determines that the target home base station cell cannot be reselected; and when determining the target home base station cell is the home base station cell that has the highest wireless quality at the frequency point wherein the terminal is positioned, the terminal determines if to continue to reselect other cells at the frequency point according to a co-frequency reselection parameter. Through the treatment, the problem that the terminal still needs to read the broadcast of a CSG cell and acquire IFRI under the condition of already knowing that the CSG cell cannot be reselected is solved, the reading of the broadcast of the CSG cell that cannot be reselected is avoided, the switching efficiency of the terminal is improved, and wireless resources are saved.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of method for reselecting home base station cells and terminal.
Background technology
At present, in the construction of modern wireless network system, the indoor covering of wireless network has become the emphasis of networking, suitable indoor covering scheme can allow network farthest bring into play its effect, for operator creates bigger value, also can save the networking cost of operator on the other hand, thereby realize low input, the high repayment of operator.
At present, increasing multinational operator wishes the radio access scheme and the equipment that can provide one-stop, this radio reception device can provide the function of various wireless access, when the user uses this equipment at home, operator can provide preferential rate, therefore, in correlation technique, a kind of Home eNodeB (Home NodeB is provided, abbreviate Home NB or eNB as) radio reception device, Home NB is as intention type hot localised points access solution, with hot localised points (for example, family) these two kinds of communication modes of fixed network in and mobile network combine dexterously, and have utilized fixed network and mobile network's advantage to satisfy the demand of user and operator fully.
Home NB is a kind of of base station (NodeB or eNodeB), the dedicated resources that can be used as private user is deployed in family, group, private site such as company or school uses, Home NB overlay area is formed in some sub-districts that Home NB covers, Home NB only allows to insert through the user who authorizes, for example, the kinsfolk, users such as member of community, sub-district under the Home eNodeB only provides service to the part authorized users, therefore, non-public authorized user group (Closed SubscriberGroup the abbreviates CSG as) sub-district that is otherwise known as, the sub-district that is covered by Home eNodeB.The CSG sub-district shows that to user terminal (User Equipment abbreviates UE as) this sub-district is a CSG sub-district by carrying a CSG indication in the broadcast.
User terminal is divided into two classes, one class is to support the terminal (abbreviating CSGUE as) of CSG, another kind of is the terminal (abbreviating non-CSG UE as) of not supporting CSG, non-CSGUE can not reside in the CSG sub-district, and CSG UE can only reside in the CSG sub-district that is authorized to, equally can not be resident for the CSG sub-district that does not have to authorize.CSG UE will allow the sign (Identity of resident CSG sub-district, abbreviate ID as) be kept at conventional wireless communication systems Subscriber Identity Module (Universal Mobile Telecommunication System SubscriberIdentity Module, abbreviate USIM as) a tabulation in, this tabulation is called as white tabulation (white list), and CSG UE confirms whether can reside in current area by search the cell ID of wanting persistent district in white tabulation.
In the honeycomb mobile communcations system, switching and sub-district gravity treatment all are extremely important parts, specifically, when UE leaves a sub-district and enters the another one sub-district, the signal of the original sub-district that this UE is received can be more and more a little less than, and the signal of its received sub-district that is entering can be more and more stronger, in order to keep the quality of terminal received signal, this terminal must be transformed into the stronger base station of signal that newly enters by original base station.For the terminal of connected state, the conversion between this base station is called switching, and for the terminal of Idle state, the change of terminal persistent district is finished by cell reselection process.
The sub-district gravity treatment needs UE that Target cell is detected, and carries out the sub-district gravity treatment in satisfactory sub-district.Because there is the advantage on the rate CSG sub-district, common sub-district is that the load on the macrocell also can alleviate greatly, therefore, has the UE of CSG ability can reside in as much as possible on the CSG sub-district that is authorized to.Simultaneously, CSG UE initiates search to the CSG sub-district by the mode of manual search (manualsearching) or automatically search (autonomous searching).
Network operation merchant can keep a part of physical resource when the network planning, for example, special Physical Cell Identifier (Physical cell identity for the use of CSG sub-district, be called for short PCI), the configuration of sub-district is notified to UE by modes such as broadcasting or signalings, and UE can judge by the scanning of physical layer whether this sub-district is the CSG sub-district.
In modern wireless cellular system, based on the residence reselecting of skew, the principle of the selection of sub-district is for selecting best wireless quality sub-district in a frequency.Wherein, Rs=Qmeas, s+Qhysts, Rn=Qmeas, n-Qoffset, wherein s represents persistent district, n represents neighbor cell, Qmeas, s represents persistent district measurement level, and Qmeas, n are the measurement level of neighbor cell, Qhysts represents the Serving cell sluggishness, Qoffset is the level deviation value of adjacent sub-district, and terminal sorts all R values, and R is called the sub-district ranking value, what make number one is the wireless quality best cell, terminal gravity treatment best cell, in addition, based on the gravity treatment complexity of adjacent sub-district, except the wireless quality of sub-district, also depend on the value size of Qoffset.
In modern wireless cellular system, in a frequency, reason owing to some access control, cause the UE can't gravity treatment during to the best sub-district of wireless quality, based on consideration to disturbing, co-frequency cell gravity treatment indication (intra-frequency cell reslectionindicator abbreviates IFRI as) can be broadcasted in this sub-district, is used to refer to UE and whether can also selects the sub-district that another can gravity treatment in current area.
When the bad sub-district of wireless quality of UE gravity treatment, because the wireless quality of sub-district is relatively poor, the transmitting power that UE and base station all need to raise oneself is kept service quality.Therefore, in interference-limited same frequency wireless system, will bring great interference to the base station and the UE of neighbor cell, and may cause homogeneous-frequency adjacent-domain to work.In this case, the network planning can be provided with IFRI in this sub-district, control UE whether continue current frequency seek one can gravity treatment the sub-district.
If IFRI is set to allow, then UE can continue to select the sub-district that another can gravity treatment at this frequency, and UE can start a timer Tbarred, and in the time of timer operation, this sub-district can not be used as the Target cell of gravity treatment again.If IFRI is set to not allow, UE also can start a timer Tbarred, and all sub-districts can be as the Target cell of gravity treatment on this frequency.Behind timer expiry, remove and to forbid selecting on this frequency all sub-districts as the Target cell of gravity treatment, if during the sub-district that still to be this frequency wireless quality best, this sub-district, UE also can read the broadcasting of this sub-district, whether reexamine can gravity treatment.
Because the CSG sub-district is not all to provide service to all UE,, all be to insert for UE for the CSG sub-district in CSG UEwhitelist not.Usually at UE for fear of insignificant CSG Cell searching, when UE can write down the CSG sub-district that can insert, also can write down the residing environmental characteristic information in this sub-district, these information can be geographical location information, or sub-district characteristic information on every side, this category information is known as footprint information (footprint).When terminal next time by coupling footprint information, just can judge on every side whether have the CSG sub-district that can insert, for the scope outside footprint, CSG UE can avoid the gravity treatment to the CSG sub-district.For whitelist is empty CSG UE or non-CSG UE, and all CSG sub-districts all can't be inserted.
System can keep some PCI and use for specially the CSG sub-district when arranging the CSG sub-district, and therefore, UE can judge by the scanning of physical layer whether this sub-district is the CSG sub-district.The configuration of these special-purpose PCI can be notified UE by the modes such as broadcasting of macrocell or CSG sub-district.UE can scan by physical layer after the scope of knowing the special-purpose PCI of CSG, just can know whether Target cell is the CSG sub-district before read system message broadcasting.
But, under UE has known that this CSG sub-district can't the situation of gravity treatment, also need to read the broadcasting of this sub-district, obtain IFRI, decide next step behavior of UE, exist UE to repeat to read the problem of Cell Broadcast CB.
Summary of the invention
Consider under UE has known that this CSG sub-district can't the situation of gravity treatment, also need to read the broadcasting of this sub-district and obtain the problem of IFRI and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of method for reselecting home base station cells and terminal, to solve the problems referred to above that exist in the correlation technique.
According to an aspect of the present invention, provide a kind of method for reselecting home base station cells.
Method for reselecting home base station cells according to the present invention comprises: terminal determines that the target home base station cells can't gravity treatment before the broadcasting of reading the target home base station cells; Terminal is determining that the target home base station cells be under the situation of the best home base station cells of wireless quality in its place frequency, determines whether in other sub-districts of frequency continuation gravity treatment with reselecting parameters frequently according to predetermined.
Wherein, terminal determines that the target home base station cells can't comprise in gravity treatment: it does not support home base station cells terminal judges, determines that then the target home base station cells can't gravity treatment; Perhaps, the local white tabulation of preserving of terminal judges be empty, and then definite target home base station cells can't gravity treatment; Perhaps, terminal is according to the environmental characteristic information around the target home base station cells, determines that the target home base station cells can't gravity treatment; Perhaps, terminal can't gravity treatment according to the direct judgement of peculiar sign of application message of preserving and target home base station cells, wherein, application message is the application message that presets of agreement or the application message of notifications terminal, and peculiar sign comprises at least: the cell ID of surrounding environment, Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.
Wherein, terminal is according to the environmental characteristic information around the target home base station cells, determine that the target home base station cells can't comprise in gravity treatment: terminal judges is local preserve can gravity treatment the positional information of home base station cells in whether exist and location information of terminals consistent location information, if there is no, determine that then the target home base station cells can't gravity treatment; Perhaps, terminal judges is local preserve can gravity treatment the characteristic information of home base station cells in whether have the characteristic information consistent with the characteristic information of the current surrounding enviroment of terminal, if there is no, determine that then the target home base station cells can't gravity treatment.
Wherein, characteristic information is location feature information or peculiar sign.
Wherein, determine that the target home base station cells comprises for the best home base station cells of wireless quality in its place frequency: all home base station cells in the frequency are sorted according to sort method based on skew, judge whether the target home base station cells ranks the first, if determine that then the target home base station cells is the best home base station cells of wireless quality in the frequency.
Wherein, predetermined is the parameter of the home base station cells of the terminal resident mistake of preserving with reselecting parameters frequently.
Wherein, predetermined be effective switching mode parameter or threshold type parameter in preset range with reselecting parameters frequently, and wherein, reservation scope is whole network or is all frequencies or one of them frequency in the network of scope with the area identification.
In addition, terminal determines whether that according to the predetermined reselecting parameters of frequency together continuing other sub-districts of gravity treatment at frequency comprises: under the predetermined situation that is set to allow with the frequency reselecting parameters, terminal continues in other sub-districts of frequency gravity treatment; Under the predetermined situation that is set to forbid with the frequency reselecting parameters, terminal is forbidden in other sub-districts of frequency gravity treatment.
In addition, terminal determines whether that according to the predetermined reselecting parameters of frequency together continuing other sub-districts of gravity treatment at frequency comprises: predetermined predetermined threshold with the frequency reselecting parameters is set; The difference of the sub-district ranking value of the home base station cells that re eligible sub-district in frequency and wireless quality are best is less than in the predetermined threshold time, and terminal allows gravity treatment to the re eligible sub-district; The difference of the sub-district ranking value of the home base station cells that re eligible sub-district in frequency and wireless quality are best is greater than in the predetermined threshold time, and terminal forbids that gravity treatment arrives this frequency.
According to a further aspect in the invention, provide a kind of terminal.
Terminal according to the embodiment of the invention comprises: first judge module, be used for before reading target home base station cells broadcasting, and judge that the target home base station cells whether can't gravity treatment; Second judge module is used for judging whether the target home base station cells is the best home base station cells of its place frequency wireless quality; Determination module is used for being under the situation that is in the judged result of first judge module and the judged result of second judge module, determines whether to continue other sub-districts of gravity treatment at frequency with the frequency reselecting parameters according to predetermined.
By means of technical scheme of the present invention, by terminal when judging that the target home base station cells can't gravity treatment, use with the frequency reselecting parameters and determine whether to continue the gravity treatment home base station cells at frequency, solved terminal under knowing that this CSG sub-district can't the situation of gravity treatment, the problem that also needs to read the broadcasting of this CSG sub-district and obtain IFRI, can avoid the reading of broadcasting that can't gravity treatment CSG sub-district improved the efficient that terminal is switched, save Radio Resource.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the method for reselecting home base station cells of the embodiment of the invention;
Fig. 2 is the block diagram according to the terminal of the embodiment of the invention.
Embodiment
Functional overview
In correlation technique, exist terminal under knowing that this CSG sub-district can't the situation of gravity treatment, also need to read the problem of the broadcasting of this sub-district, the present invention is directed to this problem and propose solution, reduce to can't re-selecting cell the reading of broadcasting, UE is before the broadcasting of reading the target home base station cells, can't gravity treatment to a during frequency wireless quality best cell if determine, UE is by a general same frequency reselecting parameters, determine whether continuing this frequency seek one can gravity treatment the sub-district, thereby reduce to can't re-selecting cell broadcasting read.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to embodiments of the invention, a kind of method for reselecting home base station cells is provided, Fig. 1 is the flow chart according to the method for reselecting home base station cells of the embodiment of the invention, before carrying out processing shown in Figure 1, terminal need confirm that the sub-district that is scanned is a home base station cells for the physical layer identifications of home base station cells by the network reservation that scans its preservation.Below, the processing of Fig. 1 is described in detail, comprise following processing (step S102-step S104):
Step S102, terminal determines that the target home base station cells can't gravity treatment before the broadcasting of reading the target home base station cells.
In the application of reality, terminal can can't be carried out gravity treatment by any the judgement target home base station cells in following four conditions:
1, terminal judges its do not support home base station cells (that is, the terminal of no family base station cell ability), determine that then the target home base station cells can't gravity treatment.
2, the local white tabulation of preserving of terminal judges is empty, determines that then the target home base station cells can't gravity treatment.
3, terminal is according to the environmental characteristic information around the target home base station cells, determines that the target home base station cells can't gravity treatment; Wherein, terminal can judge local preserve can gravity treatment the positional information of home base station cells in whether exist and location information of terminals consistent location information, if there is no, determine that then the target home base station cells can't gravity treatment; Perhaps, terminal can judge local preserve can gravity treatment the characteristic information of home base station cells in whether have the characteristic information consistent with the characteristic information of the current surrounding enviroment of terminal, if there is no, determine that then described target home base station cells can't gravity treatment.
4, terminal can't gravity treatment according to the direct judgement of peculiar sign of application message of preserving and target home base station cells, wherein, application message is the application message that presets of agreement or the application message of notifications terminal, and peculiar sign comprises at least: the cell ID of surrounding environment, Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.
Wherein, above-mentioned characteristic information is to help terminal to determine the characteristic information or the peculiar sign of its position, at least comprise: location feature information, environmental characteristic information (for example, the frequency of peripheral cell), Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.The position of the home base station cells whether terminal can visit before having confirmed to enter with the characteristic information of the sub-district of the resident mistake of past of self preserving by the characteristic information of matched environment.
Step S104, terminal is determining that the target home base station cells be under the situation of the best home base station cells of wireless quality in its place frequency, determines whether in other sub-districts of frequency continuation gravity treatment with reselecting parameters frequently according to predetermined; Wherein, the parameter of the home base station cells of the resident mistake that the above-mentioned predetermined reselecting parameters of frequency together is the terminal preservation, and, predetermined is switching mode parameter or threshold type parameter with the frequency reselecting parameters, this parameter is effective in preset range, wherein, the reservation scope is whole network or is all frequencies or one of them frequency in the network of scope with the area identification, and be the shared parameter in all sub-districts in this scope, above-mentioned preset range can be the scope of a network-wide basis or a frequency.
In step S104, terminal can sort to all home base station cells in the frequency according to the sort method based on skew, judge whether the target home base station cells ranks the first, if determine that then the target home base station cells is the best home base station cells of wireless quality in the frequency.
In step S104, can carry out two kinds of settings to predetermined with the frequency reselecting parameters, be specially:
(1) be scheduled to reselecting parameters frequently be set to the switching mode parameter (for example, be or not, allow or forbid) situation under, can whether can continue other sub-districts of gravity treatment by following rule judgment:
1, under the predetermined situation that is set to allow with the frequency reselecting parameters, terminal continues to seek other sub-districts of gravity treatment at frequency; 2, under the predetermined situation that is set to forbid with the frequency reselecting parameters, terminal forbids seeking other sub-districts of gravity treatment at frequency.
(2) reselecting parameters is set under the situation of threshold type parameter being scheduled to together frequently, judges whether that the concrete processing that continues other sub-districts of gravity treatment comprises:
1, predetermined predetermined threshold with the frequency reselecting parameters is set; 2, the difference of the sub-district ranking value of the best home base station cells of re eligible sub-district in frequency and wireless quality is less than in the predetermined threshold time, and terminal allows gravity treatment to the re eligible sub-district; 3, the difference of the sub-district ranking value of the best home base station cells of re eligible sub-district in frequency and wireless quality is greater than in the predetermined threshold time, and terminal forbids that gravity treatment arrives this frequency.
Be described in detail below in conjunction with the technique scheme of example the embodiment of the invention.
Example 1
On the macrocell M_a1 of the resident frequency A of CSG UE, CSG UE learns by the CSG cell-specific PCI scope scanning frequency B that obtains in the CSG sub-district of resident mistake before, macrocell M_b1, M_b2 and H_b1 are arranged on it, the priority of frequency B is higher than frequency A, the wireless quality that frequency B goes up each sub-district is RH_b1＞RM_b1＞RM_b2 successively, wherein, H_b1 satisfies the gravity treatment thresholding; UE is by the characteristic information around the contrast, the peripheral characteristic information of the CSG sub-district of confirming and oneself once inserting is also inconsistent, thereby the periphery of judging current environment unlikely has the CSG sub-district that can insert, read in the CSG Cell Broadcast CB that the same frequency reselecting parameters of preserving among the CSG_UE is resident mistake, this parameter is all effective to all CSG sub-districts in PLMN, and this parameter is set to allow gravity treatment; So UE rejects H_b1 in the target candidate sub-district, up to CSG UE preserve public change with reselecting parameters frequently or the whitelist of CSG UE when being modified till, therefore, it is constant that current UE still keeps residing in M_a1.
Example 2
On the macrocell M_a1 of the resident frequency A of CSG UE, CSG UE learns that by the special-purpose PCI scope of the macrocell scanning frequency B in resident mistake macrocell M_b1, M_b2 and H_b1 are arranged on the frequency B.The priority of frequency B is higher than than frequency A, and the wireless quality that frequency B goes up each sub-district is RH_b1＞RM_b1＞RM_b2 successively, and H_b1 satisfies the gravity treatment thresholding.CSG UE is by the characteristic information around the contrast, find with the CSG sub-district of once inserting (promptly local preserve can gravity treatment home base station cells) peripheral characteristic information also inconsistent, therefore judge that the periphery of current environment unlikely has the CSG sub-district that can insert, what UE obtained in persistent district M_a1 broadcasting is public with the frequency reselecting parameters, this parameter is set to go up all sub-districts for frequency B and does not allow gravity treatment, best cell on frequency B changes, or the public reselecting parameters of frequency together that CSG UE preserves changes, till when perhaps the whitelist of UE is modified, and it is constant that current UE still keeps residing in M_a1.
Example 3
On the macrocell M_a1 of the resident frequency A of CSG UE, CSG UE learns that by the special-purpose PCI scope of the macrocell scanning frequency B in resident mistake macrocell M_b1, M_b2 and H_b1 are arranged on the frequency B.The priority of frequency B is higher than frequency A, and the wireless quality that frequency B goes up each sub-district is RH_b1＞RM_b1＞RM_b2 successively, and wherein, H_b1, M_b1 satisfy the gravity treatment thresholding.UE is by the characteristic information around the contrast, and the peripheral characteristic information of the CSG sub-district of finding and oneself once inserting is inconsistent; The same frequency gravity treatment threshold parameter that CSG UE preserves reads from current area M_a1, and this parameter is all effective to all CSG sub-districts in PLMN, and the gravity treatment thresholding in this parameter equals Threshold.So CSG UE rejects H_b1 in the target candidate sub-district, up to CSG UE preserve public change with reselecting parameters frequently or the whitelist of CSG UE when being modified till, and as RH_b1-RM_b1＜=Threshold, the UE gravity treatment is to M_b1.
Example 4
On the macrocell M_a1 of the resident frequency A of non-CSG UE, non-CSG UE is by learning that at the macrocell special use PCI of resident mistake scope scanning frequency B macrocell M_b1, M_b2 and H_b1 are arranged on the frequency B before.The priority of frequency B is higher than frequency A, and the wireless quality that frequency B goes up each sub-district is RH_b1＞RM_b1＞RM_b2 successively, and H_b1, M_b1 satisfy the gravity treatment thresholding; Non-CSG UE can not insert H_b1, and the gravity treatment thresholding on frequency B that non-CSG UE obtains in persistent district M_a1 broadcasting equals Threshold, when RH_b1-RM_b1＞Threshold, and any one sub-district on not gravity treatment of the non-CSG UE frequency B.Up to publicly changing or frequency B goes up the wireless quality best cell and changes that non-CSG UE preserves with reselecting parameters frequently, or till having the sub-district to make when the whitelist of RH_b1-RX＜=Threshold or UE is modified.
Example 5
On the macrocell M_a1 of the resident frequency A of CSG UE, the whitelist of this CSG UE is empty, and CSG UE is by learning that at the macrocell special use PCI of resident mistake scope scanning frequency B macrocell M_b1, M_b2 and H_b1 are arranged on the frequency B before.The priority of frequency B is higher than frequency A, and the wireless quality that frequency B goes up each sub-district is RH_b1＞RM_b1＞RM_b2 successively, and H_b1, M_b1 satisfy the gravity treatment thresholding, and UE can not insert H_b1; The heavy parameter on frequency B that CSG UE obtains in persistent district M_a1 broadcasting is not allow, any one sub-district on not gravity treatment of the CSG UE frequency B, the best cell on frequency B change or UE preserves public with reselecting parameters frequently change or the whitelist of UE when being modified till.
Device embodiment
According to embodiments of the invention, a kind of terminal is provided, go for the described method for reselecting home base station cells of said method embodiment, Fig. 2 is the block diagram according to the terminal of the embodiment of the invention, as shown in Figure 2, terminal according to the embodiment of the invention comprises: first judge module 20, second judge module 22, determination module 24, the terminal to the embodiment of the invention is described in detail below.
First judge module 20 is connected to determination module 24, is used for before reading target home base station cells broadcasting, judges that the target home base station cells whether can't gravity treatment;
In the application of reality, first judge module 20 can can't carry out gravity treatment by any the judgement target home base station cells in following four conditions:
1, first judge module 20 judges that it does not support home base station cells (that is, the terminal of no family base station cell ability), and then definite target home base station cells can't gravity treatment;
2, first judge module 20 judges that local white tabulation of preserving be empty, and then definite target home base station cells can't gravity treatment;
3, first judge module 20 is according to the environmental characteristic information around the target home base station cells, determines that the target home base station cells can't gravity treatment; Wherein, first judge module 20 can judge local preserve can gravity treatment the positional information of home base station cells in whether exist and location information of terminals consistent location information, if there is no, determine that then the target home base station cells can't gravity treatment; Perhaps, first judge module 20 can judge local preserve can gravity treatment the characteristic information of home base station cells in whether have the characteristic information consistent with the characteristic information of the current surrounding enviroment of terminal, if there is no, determine that then described target home base station cells can't gravity treatment.
4, first judge module 20 can't gravity treatment according to the direct judgement of peculiar sign of application message of preserving and target home base station cells, wherein, application message is the application message that presets of agreement or the application message of notifications terminal, and peculiar sign comprises at least: the cell ID of surrounding environment, Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.
Wherein, above-mentioned characteristic information is to help terminal to determine the characteristic information or the peculiar sign of its position, at least comprise: location feature information, environmental characteristic information (for example, the frequency of peripheral cell), Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.The position of the home base station cells whether terminal can visit before having confirmed to enter with the characteristic information of the sub-district of the resident mistake of past of self preserving by the characteristic information of matched environment.
Second judge module 22 is connected to determination module 24, is used for judging whether the target home base station cells is the best home base station cells of its place frequency wireless quality; Wherein, the parameter of the home base station cells of the resident mistake that the above-mentioned predetermined reselecting parameters of frequency together is the terminal preservation, and, predetermined is switching mode parameter or threshold type parameter with the frequency reselecting parameters, this parameter is effective in preset range, wherein, the reservation scope is whole network or is all frequencies or one of them frequency in the network of scope with the area identification, and be the shared parameter in all sub-districts in this scope, above-mentioned preset range can be the scope of a network-wide basis or a frequency.
Particularly, second judge module 22 can sort to all home base station cells in the frequency according to the sort method based on skew, and judge whether the target home base station cells ranks the first, if determine that then the target home base station cells is the best home base station cells of wireless quality in the frequency.
Determination module 24, be connected to second judge module 22, first judge module 20, be used for being under the situation that is, determine whether to continue other sub-districts of gravity treatment with the frequency reselecting parameters at frequency according to predetermined in the judged result of second judge module 22, first judge module 20.
(1) be scheduled to reselecting parameters frequently be set to the switching mode parameter (for example, be or not, allow or forbid) situation under, determination module 24 can determine whether to continue other sub-districts of gravity treatment by following rule:
1, under the predetermined situation that is set to allow with the frequency reselecting parameters, 24 of determination modules can determine that terminal can continue to seek other sub-districts of gravity treatment at frequency; 2, under the predetermined situation that is set to forbid with the frequency reselecting parameters, 24 definite terminals of determination module forbid seeking other sub-districts of gravity treatment at frequency.
(2) reselecting parameters is set under the situation of threshold type parameter being scheduled to together frequently, and determination module 24 determines whether that the concrete processing that continues other sub-districts of gravity treatment comprises:
1, predetermined predetermined threshold with the frequency reselecting parameters is set; 2, the difference of the sub-district ranking value of the best home base station cells of re eligible sub-district in frequency and wireless quality is less than in the predetermined threshold time, and determination module 24 determines to allow gravity treatments to the re eligible sub-district; 3, the difference of the sub-district ranking value of the best home base station cells of re eligible sub-district in frequency and wireless quality is greater than in the predetermined threshold time, and determination module 24 determines that terminals forbid that gravity treatment arrives this frequency.
In addition, terminal can further include:
Scan module, the network reservation that is used for the end of scan preservation is given the physical layer identifications of home base station cells; Confirm module, be connected to scan module, be used to confirm that the sub-district that is scanned is a home base station cells.
In sum, by means of technical scheme of the present invention, by terminal when judging that the target home base station cells can't gravity treatment, use with the frequency reselecting parameters and determine whether to continue the gravity treatment home base station cells at frequency, solved terminal under knowing that this CSG sub-district can't the situation of gravity treatment, the problem that also needs to read the broadcasting of this CSG sub-district and obtain IFRI can be avoided reading broadcasting that can't gravity treatment CSG sub-district, improve the efficient that terminal is switched, saved Radio Resource.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for reselecting home base station cells is characterized in that, described method comprises:
Terminal determines that described target home base station cells can't gravity treatment before the broadcasting of reading the target home base station cells;
Described terminal is determining that described target home base station cells be under the situation of the best home base station cells of wireless quality in its place frequency, determines whether in other sub-districts of described frequency continuation gravity treatment with reselecting parameters frequently according to predetermined.
2. method according to claim 1 is characterized in that, described terminal determines that described target home base station cells can't comprise in gravity treatment:
It does not support home base station cells described terminal judges, determines that then described target home base station cells can't gravity treatment; Perhaps
The local white tabulation of preserving of described terminal judges be empty, and then definite described target home base station cells can't gravity treatment; Perhaps
Described terminal is according to the environmental characteristic information around the described target home base station cells, determines that described target home base station cells can't gravity treatment; Perhaps
Described terminal can't gravity treatment according to the direct judgement of peculiar sign of application message of preserving and described target home base station cells, wherein, described application message is the application message that presets of agreement or the application message of notifications terminal, and described peculiar sign comprises at least: the cell ID of surrounding environment, Physical Cell Identifier, Location Area Identification, Routing Area Identifier, tracking area identification.
3. method according to claim 2 is characterized in that, described terminal determines that according to the environmental characteristic information around the described target home base station cells described target home base station cells can't comprise in gravity treatment:
Described terminal judges is local preserve can gravity treatment the positional information of home base station cells in whether exist and described location information of terminals consistent location information, if there is no, determine that then described target home base station cells can't gravity treatment; Perhaps
Described terminal judges is local preserve can gravity treatment the characteristic information of home base station cells in whether have the consistent characteristic information of characteristic information with the current surrounding enviroment of described terminal, if there is no, determine that then described target home base station cells can't gravity treatment.
4. method according to claim 3 is characterized in that, described characteristic information is location feature information or described peculiar sign.
5. method according to claim 1 is characterized in that, determines that described target home base station cells comprises for the best home base station cells of wireless quality in its place frequency:
According to sort method all home base station cells in the described frequency are sorted based on skew, judge whether described target home base station cells ranks the first, if determine that then described target home base station cells is the best home base station cells of wireless quality in the described frequency.
6. method according to claim 1 is characterized in that, the parameter of the home base station cells of the resident mistake that the described predetermined reselecting parameters of frequency together is described terminal preservation.
7. according to claim 1 or 6 described methods, it is characterized in that, described predetermined be effective parameter in preset range with reselecting parameters frequently, wherein, described reservation scope is whole network or is all frequencies or one of them frequency in the network of scope with the area identification.
8. method according to claim 7 is characterized in that, described terminal determines whether that with the frequency reselecting parameters continuing described other sub-districts of gravity treatment at described frequency comprises according to predetermined:
Under the described predetermined situation that is set to allow with the frequency reselecting parameters, described terminal continues in described other sub-districts of described frequency gravity treatment;
Under the described predetermined situation that is set to forbid with the frequency reselecting parameters, described terminal is forbidden in described other sub-districts of described frequency gravity treatment.
9. method according to claim 7 is characterized in that, described terminal determines whether that with the frequency reselecting parameters continuing described other sub-districts of gravity treatment at described frequency comprises according to predetermined:
Described predetermined predetermined threshold with the frequency reselecting parameters is set;
The difference of the sub-district ranking value of the home base station cells that re eligible sub-district in described frequency and wireless quality are best is less than in the described predetermined threshold time, and described terminal allows gravity treatment to described re eligible sub-district;
The difference of the sub-district ranking value of the best home base station cells of described re eligible sub-district and wireless quality is greater than in the described predetermined threshold time in described frequency, and described terminal forbids that gravity treatment arrives described frequency.
10. a terminal is characterized in that, described method comprises:
First judge module is used for before reading target home base station cells broadcasting, judges that described target home base station cells whether can't gravity treatment;
Second judge module is used for judging whether described target home base station cells is the best home base station cells of its place frequency wireless quality;
Determination module, being used in the judged result of described first judge module and the judged result of described second judge module is to be under the situation that is, determines whether to continue other sub-districts of gravity treatment at described frequency with the frequency reselecting parameters according to predetermined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810169197A CN101742574A (en) | 2008-11-05 | 2008-11-05 | Method for reselecting home base station cells and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810169197A CN101742574A (en) | 2008-11-05 | 2008-11-05 | Method for reselecting home base station cells and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN101742574A true CN101742574A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810169197A Pending CN101742574A (en) | 2008-11-05 | 2008-11-05 | Method for reselecting home base station cells and terminal |
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| Country | Link |
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| CN (1) | CN101742574A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340818A (en) * | 2010-07-26 | 2012-02-01 | 电信科学技术研究院 | Power control method and device of home eNodeB (HeNB) |
| CN107484146A (en) * | 2017-10-13 | 2017-12-15 | 广东欧珀移动通信有限公司 | Cell reselection method, mobile terminal and computer-readable storage medium |
| CN107820719A (en) * | 2017-07-14 | 2018-03-20 | 深圳前海达闼云端智能科技有限公司 | Terminal switching method, device, base station and storage medium |
| WO2021008521A1 (en) * | 2019-07-17 | 2021-01-21 | 中国移动通信有限公司研究院 | Adjacent area information receiving method, adjacent area information sending method, terminal, and base station |
-
2008
- 2008-11-05 CN CN200810169197A patent/CN101742574A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340818A (en) * | 2010-07-26 | 2012-02-01 | 电信科学技术研究院 | Power control method and device of home eNodeB (HeNB) |
| CN102340818B (en) * | 2010-07-26 | 2014-03-12 | 电信科学技术研究院 | Power control method and device of home eNodeB (HeNB) |
| CN107820719A (en) * | 2017-07-14 | 2018-03-20 | 深圳前海达闼云端智能科技有限公司 | Terminal switching method, device, base station and storage medium |
| CN107484146A (en) * | 2017-10-13 | 2017-12-15 | 广东欧珀移动通信有限公司 | Cell reselection method, mobile terminal and computer-readable storage medium |
| CN107484146B (en) * | 2017-10-13 | 2018-11-27 | 广东欧珀移动通信有限公司 | Cell reselection method, mobile terminal and computer readable storage medium |
| WO2021008521A1 (en) * | 2019-07-17 | 2021-01-21 | 中国移动通信有限公司研究院 | Adjacent area information receiving method, adjacent area information sending method, terminal, and base station |
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Application publication date: 20100616 |