CN102932877A - Method for determining effective cell by multi-mode single-standby terminal, and multi-mode single-standby terminal - Google Patents
Method for determining effective cell by multi-mode single-standby terminal, and multi-mode single-standby terminal Download PDFInfo
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Abstract
The invention discloses a method for determining an effective cell by a multi-mode single-standby terminal, and the multi-mode single-standby terminal. The method comprises the following steps that: after receiving the priority information of more than one frequency point, which is sent by a network side, the multi-mode single-standby terminal in a time division-synchronous code division multiple access mode selects a frequency point of which the priority is higher than that of a current service cell from more than one frequency point or all frequency points according to the received optional information of a neighbor cell and the signal condition of the service cell, takes the neighbor cell which corresponds to each selected frequency point as the effective cell to be reselected, and measures the effective cell. By the invention, the measurement time of the terminal is saved, and the power of the terminal can be saved. Moreover, by identification and determination of the effective cell, a reselection flow of the terminal is optimized, and reselection back-off caused by failure in reselection of a cell which is measured, evaluated and reselected by the terminal under the conditions of inadmissibility or full load is avoided.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of multimode and treat that singly terminal determines that the method for efficient cell and multimode singly treat terminal.
Background technology
TD-SCDMA (Time Division-Synchronous Code Division Multiple Access has all been built in the most domestic city at present, the TD SDMA access) network, so the TD-SCDMA network has had more complete covering.Although the coverage of TD-SCDMA network and quality are with respect to GSM (Global System of Mobile communication, global system for mobile communications) network also has a certain distance, but most of city TD-SCDMA and GSM accomplish substantially with covering.
Along with the development of 4G technology, behind LTE (Long Term Evolution is referred to as LTE) the introducing existing network, may exist the 4G/3G/2G network with situation about covering, 4G/2G covers together with covering, 4G/3G.In the situation of multiple systems coexistence, the multimode that is in the TD-SCDMA system treats that singly terminal can face a plurality of selections when carrying out cell reselection, comprises native system residential quarter and other different standard residential quarter.In addition, the introducing of multi-modulation scheme also allows more complicated that this terminal measurement scheduling becomes.Therefore it is very crucial how choosing suitable residential quarter in the situation that does not increase measurement complexity and power consumption.
Summary of the invention
Terminal the object of the present invention is to provide a kind of multimode to treat that singly terminal determines that the method for efficient cell and multimode singly treat terminal, so that can be carried out the priority cell reselection in suitable efficient cell.
For addressing the above problem, the invention provides a kind of multimode and treat that singly terminal determines the method for efficient cell, comprising:
Be in multimode under the TD SDMA access module singly after terminal is receiving the precedence information of an above frequency of network side transmitted, information in conjunction with the optional neighbor cell that receives, RST according to Serving cell, from a described above frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, described efficient cell is initiated to measure.
Further, said method also comprises:
After measurement was finished, described terminal satisfied reselection conditions such as in the efficient cell as described in judging at least one, and then the efficient cell of described reselection conditions is satisfied in gravity treatment to this.
Further,
Described multimode treats that singly terminal receives the precedence information of an above frequency of network side transmitted, specifically comprises:
Described multimode treats that singly terminal gets access to the precedence information of an above frequency by the public priority list that receives and/or dedicated priority tabulation;
Wherein, described public priority list is that network side issues by system information, and described dedicated priority tabulation issues by dedicated signaling.
Further,
Described multimode treats that singly terminal gets access to the precedence information of an above frequency by the public priority list that receives and/or dedicated priority tabulation, specifically comprises:
As long as described multimode is singly treated terminal and received described dedicated priority tabulation, directly from described dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If described multimode is singly treated terminal and only received described public priority list, then from described public priority list, obtain the precedence information of each frequency that carries in this tabulation.
Further,
Described optional neighbor cell comprises: each residential quarter in the Neighboring Cell List that carries the corresponding adjacent cell information of frequency in tdd systems or the global system for mobile communications of the network side transmitted that receives.
Further,
Described optional neighbor cell comprises: each residential quarter in blacklist corresponding to each frequency of the network side transmitted that receives, and the corresponding neighbor cell of each frequency under the Long Term Evolution standard.
Further,
Before carrying out the frequency selection, described method also comprises: the neighboring BS information of the frequency institute respective cell that carries the global system for mobile communications standard that described terminal issues with the cell set form according to the network side that receives, obtain the base station identity code information of each residential quarter, and parse the Network Color Code information that contains in each cell base station information of identification code;
Described optional neighbor cell comprises: dispose the corresponding residential quarter of Network Color Code information that allows sign information in system information.
Correspondingly, the present invention also provides a kind of multimode singly to treat terminal, is under the TD SDMA access module, comprising:
Receiver module is for the precedence information of an above frequency that receives network side transmitted and the information of optional neighbor cell;
Measurement module, for the precedence information of a described above frequency that receives in conjunction with described receiver module and the information of optional neighbor cell, RST according to Serving cell, from a described above frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, described efficient cell is initiated to measure.
Further, above-mentioned terminal also comprises:
The gravity treatment module be used for after described measurement module is finished measurement, as at least one in the efficient cell satisfies reselection conditions as described in judging, and then the efficient cell of described reselection conditions is satisfied in gravity treatment to this.
Further,
Described receiving element is used for the precedence information of an above frequency of reception network side transmitted, specifically comprises:
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency;
Wherein, described public priority list is that network side issues by system information, and described dedicated priority tabulation issues by dedicated signaling.
Further,
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency, specifically comprises:
As long as described receiving element has received described dedicated priority tabulation, directly from described dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If receiving element has only received described public priority list, then from described public priority list, obtain the precedence information of each frequency that carries in this tabulation.
Further, above-mentioned terminal also comprises:
Parsing module, the neighboring BS information that is used for the frequency institute respective cell that carries the global system for mobile communications standard that the network side that receives according to described receiver module issues with the cell set form, obtain the base station identity code information of each residential quarter, and parse the Network Color Code information that contains in each cell base station information of identification code;
Described optional neighbor cell comprises: dispose the corresponding residential quarter of Network Color Code information that allows sign information in system information.
After adopting the present invention, an optimization has been done in residential quarter to be measured, identified efficient cell, to non-effective residential quarter, as not in tabulation, or in blacklist, or network do not allow etc. not measure and to assess, thereby saved the Measuring Time of terminal, is conducive to saving power for terminal.In addition, the identification by efficient cell is determined, also so that the gravity treatment flow process of terminal is optimized, avoids occurring terminal and measure the residential quarter that assessment is laid equal stress on and chosen, because of do not allow or the situation such as full of loading can not gravity treatment successful, and then cause the gravity treatment rollback.Especially in the situation of Serving cell poor signal, this rollback also can not in time be chosen suitable cell because of terminal and cause losing covering, affects user's impression.
Description of drawings
Fig. 1 is that the access standard is that the multimode of TD-SCDMA treats that singly terminal determines the flow chart of efficient cell in the embodiment of the invention;
Fig. 2 is to the filtering process of residential quarter on the TD-SCDMA priority frequency in the embodiment of the invention;
Fig. 3 is to the filtering process of residential quarter on the LTE priority frequency in the embodiment of the invention;
Fig. 4 is to the filtering process of residential quarter on the GSM cell set priority in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove that in the situation of not conflicting, the embodiment among the application and the feature among the embodiment be combination in any mutually.
In the present embodiment, a kind of multimode treats that singly terminal determines the method for efficient cell, as shown in Figure 1, comprising:
Be in multimode under the TD-SCDMA pattern singly after terminal is receiving the precedence information of an above frequency of network side transmitted, information in conjunction with the optional neighbor cell that receives, RST according to Serving cell, from above-mentioned more than one frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, and each efficient cell initiated to measure; After measurement was finished, this terminal satisfied reselection conditions as having judged at least one efficient cell, and then the efficient cell of reselection conditions is satisfied in gravity treatment to this.
When having a plurality of efficient cells to satisfy reselection conditions simultaneously, preferential gravity treatment is to high efficient cell corresponding to frequency of its medium priority.
When specific implementation, terminal is the precedence information that obtains each frequency by the public priority list that receives and/or dedicated priority tabulation; Wherein, public priority list is that network side issues by system information, and the dedicated priority tabulation issues by dedicated signaling.Particularly:
As long as terminal has received the dedicated priority tabulation, no matter whether receive public priority list, all directly from this dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If terminal has only received public priority list, do not receive the dedicated priority tabulation, then from this public priority list, obtain the precedence information of each frequency that carries in this tabulation.
Be example with TDD (Time Division Duplexing, time division duplex) system, carry the precedence information of the frequency under this standard and the precedence information of alien frequencies layer in the dedicated priority tabulation that terminal is received.Terminal can be in conjunction with the public priority list by system information broadcast, obtain with the dedicated priority tabulation in the thresholding (being the thresholding when reselection evaluation is done in the residential quarter on this frequency) of the identical frequency that carries and the reselecting parameters of respective cell.This reselecting parameters is one of parameter of calculating when carrying out cell reselection the S value.Then, terminal is according to the measuring-signal situation of current service cell, differentiate and start in addition low priority assessment of high priority assessment, namely judge it is that the corresponding neighbor cell of frequency that only priority is higher than current service cell initiates to measure or neighbor cell corresponding to frequency corresponding to all priority measured, do different processing for the frequency of different systems.
As shown in Figure 2, if the frequency of TDD standard, the residential quarter corresponding to frequency of the assigned priority that terminal at first will be measured needs done in the Neighboring Cell List that receives once and filtered, if residential quarter corresponding to this frequency is in Neighboring Cell List, again frequency and corresponding cell configuration are measured to physical layer, if residential quarter corresponding to this frequency be not in Neighboring Cell List then will not measure.
As shown in Figure 3, if the frequency of LTE standard, terminal is can not receive to include the Neighboring Cell List of should frequency corresponding residential quarter, no matter high priority is assessed or the low priority assessment, terminal all needs the frequency of assigned priority is carried out frequency sweep, Cell searching, finds all residential quarters under this frequency.For searching all residential quarters under each frequency, the blacklist under this frequency that terminal issues according to network side is done once and is filtered, and the residential quarter in blacklist is no longer measured, and can not participate in gravity treatment.
As shown in Figure 4, frequency for the GSM standard, network side is that the form with cell set issues neighboring BS information, terminal is measured these residential quarters, and remove to obtain base station identity code (the Base Station Identity code of these residential quarters, referred to as BSIC) information, then parse Network Color Code (Network Colour Code is referred to as the NCC) information that contains among each residential quarter BSIC.(such as the information of system information SIB (System Infomation Block, system information block) the 19 GSM cell set of carrying, only initiate to measure to disposing the corresponding residential quarter of the NCC that allows sign information according to the information of broadcasting in the system information.
Frequency for the GSM standard, also can adopt with the identical mode of the frequency of TDD standard, that is: the residential quarter corresponding to frequency of the assigned priority that at first will measure needs of terminal done in the Neighboring Cell List that receives once and filtered, if residential quarter corresponding to this frequency is in Neighboring Cell List, again frequency and corresponding cell configuration are measured to physical layer, if residential quarter corresponding to this frequency be not in Neighboring Cell List then will not measure.
By above-mentioned flow process, an optimization has been done in residential quarter to be measured, identify efficient cell, to non-effective residential quarter, as not in tabulation or in blacklist, or the residential quarter that network does not allow etc. is not measured and is assessed, thereby saved the Measuring Time of terminal, be conducive to saving power for terminal.In addition, by the identification of efficient cell, also so that the gravity treatment flow process of terminal is optimized, avoids occurring terminal and measure the residential quarter that assessment is laid equal stress on and chosen, because of do not allow or the situation such as full of loading can not gravity treatment successfully, cause the gravity treatment rollback.Especially in the situation of Serving cell poor signal, this rollback also can not in time be chosen suitable cell because of terminal and cause losing covering, affects user's impression.
Terminal decides resident to which residential quarter when carrying out cell reselection according to the priority of frequency.When the Serving cell signal was relatively good, terminal was only measured the high frequency of priority ratio Serving cell and alien frequencies layer, if having the residential quarter to satisfy reselection conditions on the high frequency of priority and the alien frequencies layer, then gravity treatment is to this residential quarter.When the Serving cell poor signal, terminal is just monitored frequency and the alien frequencies layer of all priority, and when having the residential quarter to satisfy reselection conditions, gravity treatment is to this residential quarter.
Above-described embodiment has utilized the neighboring BS information that carries in the system information 11 and 12 of network side broadcasting.When the priority gravity treatment, network brings terminal by system information 19 with public precedence information, for system information 11,12 and the existing standard that concerns of system information 19 do not have clear, do not have the corresponding relation of the frequency information that carries in the cell information that carries in the clear and definite system information 11,12 and the system information 19 yet.Above-described embodiment is set up association to both, by the suitable efficient cell that filters out for measurement and gravity treatment associated with each other.Network side can be according to system performance and the dynamic information list of adjusting the optional neighbor cell that sends to terminal of actual conditions, be not included in system information 11,12 the cell list such as the neighbor cell that terminal capability is not supported, residential quarter to the LTE standard is that inappropriate residential quarter is placed in the blacklist, can dispose the identification information whether corresponding NCC allows to the residential quarter of GSM standard.The service conditions that network side also can be supported according to business information, information on load, bandwidth information and residential quarter etc. is adjusted the suitable cell that the terminal needs are supported.For network side, this association also is good, as can effective balanced cell load etc.
In the present embodiment, a kind of multimode is singly treated terminal, is under the TD SDMA access module, comprising:
Receiver module is for the precedence information of an above frequency that receives network side transmitted and the information of optional neighbor cell;
Measurement module, for the precedence information of a described above frequency that receives in conjunction with described receiver module and the information of optional neighbor cell, RST according to Serving cell, from a described above frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, described efficient cell is initiated to measure.
Preferably, above-mentioned terminal also comprises:
The gravity treatment module be used for after described measurement module is finished measurement, as at least one in the efficient cell satisfies reselection conditions as described in judging, and then the efficient cell of described reselection conditions is satisfied in gravity treatment to this.
Preferably,
Described receiving element is used for the precedence information of an above frequency of reception network side transmitted, specifically comprises:
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency;
Wherein, described public priority list is that network side issues by system information, and described dedicated priority tabulation issues by dedicated signaling.
Preferably,
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency, specifically comprises:
As long as described receiving element has received described dedicated priority tabulation, directly from described dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If receiving element has only received described public priority list, then from described public priority list, obtain the precedence information of each frequency that carries in this tabulation.
Preferably, above-mentioned terminal also comprises:
Parsing module, the neighboring BS information that is used for the frequency institute respective cell that carries the global system for mobile communications standard that the network side that receives according to described receiver module issues with the cell set form, obtain the base station identity code information of each residential quarter, and parse the Network Color Code information that contains in each cell base station information of identification code;
Described optional neighbor cell comprises: dispose the corresponding residential quarter of Network Color Code information that allows sign information in system information.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is the preferred embodiments of the present invention only, is not for limiting protection scope of the present invention.According to summary of the invention of the present invention; also other various embodiments can be arranged; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a multimode treats that singly terminal determines the method for efficient cell, comprising:
Be in multimode under the TD SDMA access module singly after terminal is receiving the precedence information of an above frequency of network side transmitted, information in conjunction with the optional neighbor cell that receives, RST according to Serving cell, from a described above frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, described efficient cell is initiated to measure.
2. the method for claim 1 is characterized in that, described method also comprises:
After measurement was finished, described terminal satisfied reselection conditions such as in the efficient cell as described in judging at least one, and then the efficient cell of described reselection conditions is satisfied in gravity treatment to this.
3. the method for claim 1 is characterized in that:
Described multimode treats that singly terminal receives the precedence information of an above frequency of network side transmitted, specifically comprises:
Described multimode treats that singly terminal gets access to the precedence information of an above frequency by the public priority list that receives and/or dedicated priority tabulation;
Wherein, described public priority list is that network side issues by system information, and described dedicated priority tabulation issues by dedicated signaling.
4. method as claimed in claim 3 is characterized in that:
Described multimode treats that singly terminal gets access to the precedence information of an above frequency by the public priority list that receives and/or dedicated priority tabulation, specifically comprises:
As long as described multimode is singly treated terminal and received described dedicated priority tabulation, directly from described dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If described multimode is singly treated terminal and only received described public priority list, then from described public priority list, obtain the precedence information of each frequency that carries in this tabulation.
5. the method for claim 1 is characterized in that:
Described optional neighbor cell comprises: each residential quarter in the Neighboring Cell List that carries the corresponding adjacent cell information of frequency in tdd systems or the global system for mobile communications of the network side transmitted that receives.
6. the method for claim 1 is characterized in that:
Described optional neighbor cell comprises: each residential quarter in blacklist corresponding to each frequency of the network side transmitted that receives, and the corresponding neighbor cell of each frequency under the Long Term Evolution standard.
7. the method for claim 1 is characterized in that:
Before carrying out the frequency selection, described method also comprises: the neighboring BS information of the frequency institute respective cell that carries the global system for mobile communications standard that described terminal issues with the cell set form according to the network side that receives, obtain the base station identity code information of each residential quarter, and parse the Network Color Code information that contains in each cell base station information of identification code;
Described optional neighbor cell comprises: dispose the corresponding residential quarter of Network Color Code information that allows sign information in system information.
8. a multimode is singly treated terminal, is under the TD SDMA access module, comprising:
Receiver module is for the precedence information of an above frequency that receives network side transmitted and the information of optional neighbor cell;
Measurement module, for the precedence information of a described above frequency that receives in conjunction with described receiver module and the information of optional neighbor cell, RST according to Serving cell, from a described above frequency, select frequency or all frequencies that priority is higher than current service cell, then with the selected corresponding neighbor cell of each frequency that goes out as the efficient cell for the treatment of gravity treatment, described efficient cell is initiated to measure.
9. terminal as claimed in claim 8 is characterized in that, also comprises:
The gravity treatment module be used for after described measurement module is finished measurement, as at least one in the efficient cell satisfies reselection conditions as described in judging, and then the efficient cell of described reselection conditions is satisfied in gravity treatment to this.
10. terminal as claimed in claim 8 is characterized in that:
Described receiving element is used for the precedence information of an above frequency of reception network side transmitted, specifically comprises:
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency;
Wherein, described public priority list is that network side issues by system information, and described dedicated priority tabulation issues by dedicated signaling.
11. terminal as claimed in claim 10 is characterized in that:
Described receiving element is used for getting access to by the public priority list that receives and/or dedicated priority tabulation the precedence information of an above frequency, specifically comprises:
As long as described receiving element has received described dedicated priority tabulation, directly from described dedicated priority tabulation, obtain the precedence information of each frequency that carries in this tabulation;
If receiving element has only received described public priority list, then from described public priority list, obtain the precedence information of each frequency that carries in this tabulation.
12. terminal as claimed in claim 8 is characterized in that, also comprises:
Parsing module, the neighboring BS information that is used for the frequency institute respective cell that carries the global system for mobile communications standard that the network side that receives according to described receiver module issues with the cell set form, obtain the base station identity code information of each residential quarter, and parse the Network Color Code information that contains in each cell base station information of identification code;
Described optional neighbor cell comprises: dispose the corresponding residential quarter of Network Color Code information that allows sign information in system information.
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| CN2011102275132A CN102932877A (en) | 2011-08-09 | 2011-08-09 | Method for determining effective cell by multi-mode single-standby terminal, and multi-mode single-standby terminal |
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