CN104980984A - Different system cell reselection method and Different system cell reselection terminal - Google Patents
Different system cell reselection method and Different system cell reselection terminal Download PDFInfo
- Publication number
- CN104980984A CN104980984A CN201410134836.0A CN201410134836A CN104980984A CN 104980984 A CN104980984 A CN 104980984A CN 201410134836 A CN201410134836 A CN 201410134836A CN 104980984 A CN104980984 A CN 104980984A
- Authority
- CN
- China
- Prior art keywords
- community
- gsm
- scdma
- thresholding
- parameter
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
Abstract
The present invention provides a different system cell reselection method implemented by a terminal. The method comprises the steps of when the terminal is in a GSM cell, determining whether a current system parameter about the GSM cell and a TD-SCDMA cell cause the different system frequent cell reselection; if the current system parameter about the GSM cell and the TD-SCDMA cell cause the different system frequent cell reselection, using the sum of a current measurement threshold used for starting the measurement to the GSM cell in the TD-SCDMA cell and a reselection hysteresis value as a reselection threshold used for reselecting from the GSM cell to the TD-SCDMA cell, and carrying out the reselection from the GSM cell to the TD-SCDMA cell; if the current system parameter about the GSM cell and the TD-SCDMA cell does not cause the different system frequent cell reselection, using a current reselection threshold for reselecting from the GSM cell to the TD-SCDMA cell as the reselection threshold used for reselecting from the GSM cell to the TD-SCDMA cell, and carrying out the reselection from the GSM cell to the TD-SCDMA cell.
Description
Technical field
The present invention relates to a kind of method and terminal of different system cell gravity treatment, more specifically, relate to one and be particularly useful for TD-SCDMA(TD SDMA) network and GSM(global system for mobile communications) method of different system cell gravity treatment of network and terminal.
Background technology
The 2G(second generation relative to maturation) wireless network, especially GSM network, the 3G(third generation) wireless network, especially TD-SCDMA network, as a kind of emerging technology, the structure process that necessarily an iterative method is also constantly perfect of its infrastructure etc.At short notice, 3G network can not substitute 2G network completely and exist.The 2G network coverage rate that quality is high because its scope is large can make up the problems such as current 3G network coverage rate is little, will inevitably coexist within longer a period of time from now on 3G network.
Because the coverage rate of current 3G network is little, therefore, provided the terminal of service often can face because the edge zone being in 3G network does not receive the measured signal of matter to need by temporary transient gravity treatment to the good 2G network of signal quality by 3G network.The special parameter that this cell reselection is generally arranged at network side in advance based on staff carries out automatically, to provide the Consumer's Experience of seamless gravity treatment for user.
But; the optimum configurations relevant to the cell reselection between current TD-SCDMA network and GSM network often can cause rattling the generation of cell reselection problem; that is, in the edge zone of TD-SCDMA network, terminal usually can gravity treatment continually between TD-SCDMA network and GSM network.This greatly can expend the electric energy of terminal, and increases the probability of paging failure.
Summary of the invention
The object of the present invention is to provide method and the terminal of a kind of different system cell gravity treatment of at least one in the above-mentioned shortcoming solving prior art, more specifically, a kind of method and the terminal that are particularly useful for the different system cell gravity treatment of TD-SCDMA network and GSM network is provided.The generation of different system table tennis cell reselection effectively can be prevented according to method of the present invention and terminal.
According to a first aspect of the invention, a kind of different system cell reselecting method implemented by terminal is provided.Whether described method comprises: when described terminal resides in GSM community, judge different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community, if and different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community, then using be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value sum are as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community, if the current system parameter about GSM community and TD-SCDMA community can not cause different system to rattle cell reselection, then using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.
In one embodiment, described method also comprises, and when described terminal resides in described TD-SCDMA community, obtains the current system parameter of described TD-SCDMA community and is stored in described terminal by the current system parameter of described TD-SCDMA community.
In one embodiment, the current system parameter of described TD-SCDMA community is stored as the project of list, and described list can be used in the system parameters storing at least one TD-SCDMA community.
In one embodiment, described list be updated regularly or current system parameter in described TD-SCDMA community changes time upgrade.
In one embodiment, judge different system cell reselection of rattling whether can be caused to comprise about GSM community and the current system parameter of TD-SCDMA community: by the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding, if for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community, if for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
In one embodiment, described method also comprises: when described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And when described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.
In one embodiment, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be the signal level value measured relative to cell downlink.
In one embodiment, described is the parameter TDD_Qoffset of the BCCH channels broadcast via GSM community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be TDDsearchRATgsm=SsearchRATgsm+(Qrxlevmin+QrxlevminOffset)+Pcompensation, wherein, parameter SsearchRATgsm, parameter Qrxlevmin, parameter QrxlevminOffset and parameter Pcompensation is from the system message of TD-SCDMA community, SsearchRATgsm represents the measurement thresholding relative to cell selection reception level value Srxlev for starting the measurement to GSM community in TD-SCDMA community, parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represent use RACH(Random Access Channel at subscriber equipment) access network time the maximum transmission power that can not allow with community power compensating value when launching.
In one embodiment, described reselection hysteresis value is greater than 0 dBm(dBm).Preferably, described reselection hysteresis value is between 2dBm to 4dBm.
According to a further aspect in the invention, a kind of terminal for implementing the gravity treatment of different system cell is provided.Wherein, described terminal support is by the cell reselection scheme of re-selecting cell of queuing up to multiple cell quality to be selected.Described terminal comprises: judging unit, for when described terminal resides in GSM community, judges different system whether can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community, performance element, for can cause at the current system parameter about GSM community and TD-SCDMA community different system rattle cell reselection, using be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value sum are as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community, when the current system parameter about GSM community and TD-SCDMA community can not cause different system rattle cell reselection, using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.
In one embodiment, described terminal also comprises: acquiring unit, for when described terminal resides in described TD-SCDMA community, obtains the current system parameter of described TD-SCDMA community; And memory cell, for the current system parameter of the described TD-SCDMA community obtained is stored in described terminal.
In one embodiment, the current system parameter of described TD-SCDMA community is stored as the project of list, and described list can be used in the system parameters storing at least one TD-SCDMA community.
In one embodiment, described list be updated regularly or current system parameter in described TD-SCDMA community changes time upgrade.
In one embodiment, described judging unit comprises: comparing unit, for by the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding, if for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community; If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
In one embodiment, described performance element also comprises: measuring unit, for when described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And measure gravity treatment unit, for when described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.
In one embodiment, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be the signal level value measured relative to cell downlink.
In one embodiment, described is the parameter TDD_Qoffset of the BCCH channels broadcast via GSM community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be TDDsearchRATgsm=SsearchRATgsm+(Qrxlevmin+QrxlevminOffset)+Pcompensation, wherein, parameter SsearchRATgsm, parameter Qrxlevmin, parameter QrxlevminOffset and parameter Pcompensation is from the system message of TD-SCDMA community, SsearchRATgsm represents the measurement thresholding relative to cell selection reception level value Srxlev for starting the measurement to GSM community in TD-SCDMA community, parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represents power compensating value when can not launch with the maximum transmission power of community permission when subscriber equipment uses RACH access network.
In one embodiment, described reselection hysteresis value is greater than 0 dBm.Preferably, described reselection hysteresis value is between 2dBm to 4dBm.
Accompanying drawing explanation
These and other aspects of the present invention are well-known according to embodiment described below, and set forth this below with reference to these embodiments.
In the accompanying drawings:
Fig. 1 shows a kind of according to an exemplary embodiment of the present invention flow chart of the method for the gravity treatment of different system cell.
Fig. 2 shows according to an exemplary embodiment of the present invention for the block diagram of the terminal of different system cell gravity treatment.
Specific embodiment
First with reference to Fig. 1, a kind of according to an exemplary embodiment of the present invention method for the gravity treatment of different system cell is described in detail below.It should be noted, unless otherwise indicated, otherwise the cell reselection scheme special instructions that terminal according to the present invention is supported, by queuing up to multiple community to be selected the cell reselection scheme of re-selecting cell with specific measure (such as, cell signal strength and signal quality).Particularly, this cell reselection scheme refers to, when terminal needs to carry out cell reselection operation, if there are several communities to be selected all meet predetermined condition, so based on described specific measure (such as signal strength signal intensity and/or signal quality), ranked in several communities to be selected described, and select optimum community to be selected to carry out gravity treatment based on queuing result.
As shown in Figure 1, a kind of according to an exemplary embodiment of the present invention method 100 for the gravity treatment of different system cell comprises: in step 102 place, judges whether current system parameter can cause cell reselection of rattling; If so, then in step 104 place, the system parameters reset is used to carry out cell reselection; If not, then in step 106 place, use current (original) system parameters to carry out cell reselection.Below each step is described in detail.
In step 102 place, when terminal resides in GSM community, whether this terminal judges can cause different system to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.Terminal can be obtained by various method and/or be known its TD-SCDMA community involved by cell reselection that will carry out and the relevant system parameters of GSM community, such as, for starting the measurement thresholding of the measurement to GSM community in TD-SCDMA community, for from TD-SCDMA cell reselection to the gravity treatment thresholding of GSM community, for starting the measurement thresholding of the measurement to TD-SCDMA community in GSM community, and for from GSM cell reselection to gravity treatment thresholding of TD-SCDMA community etc.
For example, for the various system parameterss of TD-SCDMA community, terminal can obtain the current system parameter of described TD-SCDMA community when residing at TD-SCDMA community in advance by the signal receiving TD-SCDMA Cell Broadcast CB or clean culture and be stored by the current system parameter of described TD-SCDMA community in the memory of oneself.The current system parameter of TD-SCDMA community can such as store in the form of a list.In described list, the system parameters of at least one TD-SCDMA community can be stored, and the system parameters of a specific T D-SCDMA community can be stored as a project in described list.In each project, the title, value etc. of the numbering of such as TD-SCDMA community, various system parameters can be comprised.These lists upgrade, to reflect the latest development of each TD-SCDMA community when can be updated regularly or current system parameter in TD-SCDMA community changes.In practice, terminal can obtain concrete parameter value by the project in the described list of inquiry in use.But, it will be understood by those skilled in the art that the system parameters of TD-SCDMA community can store in any other manner, and should be considered to fall within the present invention's spirit and scope required for protection.
For the various system parameterss of GSM community, terminal can first based on the current system parameter gravity treatment of described TD-SCDMA community to after GSM community, similarly, also the signal by receiving GSM Cell Broadcast CB or clean culture obtains the current system parameter of this GSM community, and also can be stored in the memory of oneself.But; method for obtaining the current system parameter of GSM community and TD-SCDMA community only provides in mode for example and not limitation; it should be understood that; any method that those skilled in the art know may be used for the current system parameter obtaining GSM community and TD-SCDMA community, and should be considered to fall within spirit and scope that application claims protects.
The present inventor recognizes, when the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community with for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding arrange meet certain condition, easily there is different system table tennis cell reselection.The present inventor recognizes, is less than or equal to rattles the generation of cell reselection situation to the different system that easily causes when pre-test thresholding of the measurement of GSM community for starting in TD-SCDMA community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community.Particularly, the measuring of the service quality that can provide to this terminal when TD-SCDMA community (value of such as received signal level) for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and from described GSM cell reselection to the current gravity treatment thresholding of described TD-SCDMA community (namely, be less than or equal to the current gravity treatment thresholding be more than or equal to from described GSM cell reselection to described TD-SCDMA community when pre-test thresholding for starting the measurement to GSM community in TD-SCDMA community), the measuring of the service quality that terminal can may provide due to TD-SCDMA community be less than or equal to start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, described GSM community has been arrived in gravity treatment.But, again due to as previously mentioned, now the measuring of the TD-SCDMA community service quality that can provide to this terminal (value of such as received signal level) is more than or equal to the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, therefore, terminal will get back to described TD-SCDMA community from described GSM cell reselection again.Like this, the situation of different system table tennis cell reselection just there occurs.
Therefore, in step 102 place, judge different system cell reselection of rattling whether can be caused can to comprise particularly about GSM community and the current system parameter of TD-SCDMA community: by the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding; If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community; If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
For current concrete system parameters, above-mentioned judgment criterion is described below.
At existing standard 3GPP (3rd Generation Partnership Project, third generation partner program) in 25.304, with regard to inter-RAT(also referred to as different system) measuring criterion specifies, namely when terminal resides in TD-SCDMA community, if Srxlev<=Ssearch
rATm(1), just start GSM and measure, wherein, Srxlev represents cell selection reception level value, and unit is dB(decibel), Ssearch
rATmrepresent the measurement thresholding being used for the measurement started in TD-SCDMA community GSM community, m just represents GSM community in the present invention, that is, and Ssearch
rATmalso Ssearch can be expressed as
rATgsm.In addition, also specify in standard 3GPP 25.304, Srxlev=Q
rxlevmeas-(Qrxlevmin+QrxlevminOffset)-Pcompensation (2), wherein, Q
rxlevmeasrepresent the signal level value that current TD-SCDMA cell downlink is measured, the i.e. RSCP(received signal code power that receives of P-CCPCH (Primary Common Control Physical Channel)) value, also claim level value, unit is dBm, and it is a dynamic value measured according to cell environment.Parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represents power compensating value when can not launch with the maximum transmission power of community permission when subscriber equipment uses RACH access network.Should be noted that parameter Ssearch
rATm, parameter Qrxlevmin, QrxlevminOffset and parameter Pcompensation are the system parameterss of TD-SCDMA community, and can be obtained by the system signal of TD-SCDMA Cell Broadcast CB.
In these cases, equation (2) substituted into equation (1) and after m is replaced with gsm, obtain:
Q
rxlevmeas-（Qrxlevmin+QrxlevminOffset）-Pcompensation <=Ssearch
RATgsm
After this, obtain after above-mentioned formula being changed again:
Q
rxlevmeas<=Ssearch
RATgsm+（Qrxlevmin+QrxlevminOffset）+Pcompensation （3）。
Known by conversion above, (3) are as the criterion whether starting the measurement to GSM community with the formula, by Q
rxlevmeasto measure as one and by Ssearch
rATgsm+ (Qrxlevmin+QrxlevminOffset)+Pcompensation is as the measurement thresholding for starting the measurement to GSM community in TD-SCDMA community, in fact be equivalent to (1) with the formula as the criterion whether starting the measurement to GSM community, they are completely equivalent in effect.In effect, formula (3) is in fact equivalent to carry out unit conversion to measuring in formula (1), that is, measure (such as, cell selection reception level value) from one and be converted to another kind and measure (such as, cell downlink measure signal level value).Therefore, the present invention supposes that (3) replace formula (1) to judge whether when residing in TD-SCDMA community to start the criterion to the measurement of GSM community as being used for the formula.Particularly, TDDsearchRATgsm=Ssearch is supposed
rATgsm+ (Qrxlevmin+QrxlevminOffset)+Pcompensation is according to the measurement thresholding for starting the measurement to GSM community in TD-SCDMA community of the present invention.
In addition, standard 3GPP 25.304 also specifies, after terminal gravity treatment to GSM community, using parameter TDD_Qoffset(unit for dBm) carry out gravity treatment as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community.It should be noted, with above-mentioned parameter Ssearch
rATgsmetc. similar, parameter TDD_Qoffset also can by the BCCH(Broadcast Control Channel of GSM community) system information broadcasted obtains.
In this case, for the various design parameters specified in existing standard, judge different system cell reselection of rattling whether can be caused specifically can be converted to and to be compared by parameter TDD_Qoffset and parameter TDDsearchRATgsm about the current system parameter of GSM community and TD-SCDMA community.If TDD_Qoffset is greater than TDDsearchRATgsm, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community; If TDD_Qoffset is less than or equal to TDDsearchRATgsm, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
Return to continue with reference to Fig. 1 now, in step 104 place, if the current system parameter about GSM community and TD-SCDMA community can cause different system to rattle cell reselection, then by be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value (such as, self-defining parameter RESELECT_HYSTERESIS) sum as from GSM cell reselection to the gravity treatment thresholding of TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.For example, according to above description, using TDDsearchRATgsm and parameter RESELECT_HYSTERESIS sum as the new gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community.That is, under this example, only have signal level value that the cell downlink of current TD-SCDMA community is measured (namely, parameter Qrxlevmeas) when being more than or equal to TDDsearchRATgsm+RESELECT_HYSTERESIS, terminal is just from current resident GSM cell reselection to TD-SCDMA community.In one embodiment, described reselection hysteresis value is greater than 0 dBm.In another embodiment, described reselection hysteresis value is preferably between 2dBm to 4dBm, like this, can make only just to carry out cell reselection when TD-SCDMA cell signal is enough good, and then substantially avoid the generation of different system table tennis cell reselection.But, what those skilled in the art should understand that is, for can certainly be considered from GSM cell reselection to other parameters of TD-SCDMA community simultaneously, the signal level value such as keeping cell downlink to measure is more than or equal to parameter TDDsearchRATgsm and parameter RESELECT_HYSTERESIS sum duration (such as, 5 seconds).
Next, in step 106 place, if the current system parameter about GSM community and TD-SCDMA community can not cause different system to rattle cell reselection, then using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.For example, the system parameters TDD_Qoffset still broadcasted GSM community is as the reselecting parameters be used for from GSM cell reselection to TD-SCDMA community.
In one embodiment, described method 100 also comprises, when described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And when described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.For example, still using parameter SsearchRATgsm(or the parameter TDDsearchRATgsm through transforming) measure thresholding as being used for the working as of measurement started in TD-SCDMA community GSM community, and using parameter Qsearch_I as the measurement thresholding being used for the measurement started in GSM community TD-SCDMA community.
By above optimum configurations, avoid terminal and carry out gravity treatment continually between TD-SCDMA community and GSM community, and then saved the electric energy of terminal, and increase the successful probability of paging.
Fig. 2 illustrates according to an exemplary embodiment of the present invention for the block diagram of the terminal 200 of different system cell gravity treatment.Described terminal 200 such as performing method 100 described above, and can bring the beneficial effect identical with described method 100.Therefore, omit to part identical with said method 100 in terminal 200, to simplify the description of terminal 200.For example, described terminal can be mobile phone etc.
As shown in Figure 2, described terminal 200 comprises judging unit 201, for when described terminal resides in GSM community, judges different system whether can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community;
Performance element 203, for can cause at the current system parameter about GSM community and TD-SCDMA community different system rattle cell reselection, using be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value sum are as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community, and when the current system parameter about GSM community and TD-SCDMA community can not cause different system rattle cell reselection, using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.
In one embodiment, described terminal 200 can also comprise acquiring unit 205, for when described terminal resides in described TD-SCDMA community, obtains the current system parameter of described TD-SCDMA community; And memory cell 207, for the current system parameter of the described TD-SCDMA community obtained is stored in described terminal.For example, the current system parameter of described TD-SCDMA community can be stored as a project of list, and described list may be used for the system parameters storing at least one TD-SCDMA community.In one embodiment, described list upgrades when can be updated regularly or current system parameter in described TD-SCDMA community changes, to make the latest development of the message reflection TD-SCDMA community of described list, thus to avoid the generation of the table tennis cell reselection between different system better.
Additionally, it should be appreciated that described memory cell 207 is not limited to store the system information of TD-SCDMA community, but may be used for storing any other information, such as, system parameters of GSM community etc.
In one embodiment, described judging unit 201 may further include comparing unit 209, for by the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding, if and for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then judge different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community, if for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then judge different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
Particularly, described can be such the measuring of signal level value of measuring relative to cell downlink for starting the pre-test thresholding of working as of the measurement of GSM community in TD-SCDMA community.Described can be the parameter TDD_Qoffset of the BCCH channels broadcast via GSM community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding can be TDDsearchRATgsm=SsearchRATgsm+(Qrxlevmin+QrxlevminOffset)+Pcompensation, wherein, parameter SsearchRATgsm, parameter Qrxlevmin, parameter QrxlevminOffset and parameter Pcompensation is from the system message of TD-SCDMA community, SsearchRATgsm represents the measurement thresholding relative to cell selection reception level value Srxlev for starting the measurement to GSM community in TD-SCDMA community, parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represents power compensating value when can not launch with the maximum transmission power of community permission when subscriber equipment uses RACH access network.
In one embodiment, described reselection hysteresis value is greater than 0 dBm.In another embodiment, preferably, described reselection hysteresis value between 2dBm to 4dBm, to prevent the generation of the table tennis cell reselection situation between different system better.
In one embodiment, described performance element 203 may further include measuring unit (211), for when described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And measure gravity treatment unit 213, for when described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.
It will be understood by those skilled in the art that the judging unit 201 shown in Fig. 2, comparing unit 209, performance element 203, measuring unit 211, measurement gravity treatment unit 213 and acquiring unit 205 are only the various functional units divided from logical meaning.These unit can use any suitable software, hardware, firmware etc. to realize in practice, and can combination in any.Therefore, 26S Proteasome Structure and Function unit illustrated in fig. 2 is generally speaking not limited to according to embodiments of the invention.For example, above-mentioned various unit can perform on one processor, also can perform on multiple processor.
In addition, memory cell 207 can be any device that can store information such as such as volatibility or non-volatile memory device etc. in practice.
In addition, it is also to be understood that the present invention also extends to and is suitable for implementing computer program of the present invention, particularly on carrier or in computer program.Program can with the form of source code, object code, code (such as, the form of partial compilation) in the middle of source and target code, or to be suitable for other form any used in the implementation of method according to the present invention.It is also to be understood that this program can have many different structural designs.Such as, realize can being subdivided into one or more subprogram according to the program code of the function of method of the present invention or system.Between these subprograms, the many different mode of distribution function is apparent to those skilled in the art.Subprogram can be stored in an executable file together, to form independently program.This executable file can comprise computer executable instructions, such as, and processor instruction and/or interpreter instruction (such as, the instruction of Java interpreter).Alternately, one or more or whole subprograms can be stored at least one external library file, and are such as operationally associated with main program statically or dynamically.At least one containing at least one subprogram of main program is called.Equally, subprogram can comprise funcall each other.The embodiment relevant to computer program comprises computer executable instructions, and it to correspond in mentioned method each step in the treatment step of at least one.These instructions can be subdivided into subprogram, and/or be stored in can in static or one or more file of dynamically associating.Another embodiment relevant to computer program comprises computer executable instructions, and it to correspond in mentioned system and/or product each in the device of at least one.These instructions can be subdivided into subprogram, and/or be stored in can in static or one or more file of dynamically associating.
The carrier of computer program can be any entity or the equipment that can carry program.Such as, carrier can comprise storage medium, such as, ROM(such as, CD ROM or semiconductor ROM) or magnetic recording medium (such as, floppy disk or hard disk).In addition, carrier can be transmissible carrier, and such as, electricity or light signal, it via cable or optical cable or can be transmitted by radio or alternate manner.When in the present this signal of program body, carrier can be made up of this cable or miscellaneous equipment or device.Alternately, carrier can be the integrated circuit embedding program wherein, and this integrated circuit is suitable for performing correlation technique or using when performing correlation technique.
It should be noted that above-described embodiment illustrates instead of restriction the present invention, and those skilled in the art can design many alternately embodiments, and not depart from the scope of claims.In the claims, any Reference numeral in bracket should not be construed as restriction claim.Use verb " to comprise " and its distortion do not get rid of existence to be different from claim state those element or step.Article " one " before element is not got rid of and be there is multiple such element.The present invention is by can by means of comprising the hardware of some different elements and realizing by means of the computer of suitably programming.In the equipment claim listing some devices, several in these devices can be embodied by the hardware of same item.The pure fact describing some measure in different dependent claims does not represent that the combination of these measures can not use to be benefited.
Claims (20)
1. the different system cell reselecting method implemented by terminal, described method comprises:
When described terminal resides in GSM community, judge different system whether can be caused to rattle cell reselection (102) about the current system parameter of GSM community and TD-SCDMA community; And
If the current system parameter about GSM community and TD-SCDMA community can cause different system to rattle cell reselection, then using be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value sum are as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment (104) from GSM community to TD-SCDMA community
If the current system parameter about GSM community and TD-SCDMA community can not cause different system to rattle cell reselection, then using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment (106) from GSM community to TD-SCDMA community.
2. method according to claim 1, also comprises, and when described terminal resides in described TD-SCDMA community, obtains the current system parameter of described TD-SCDMA community and is stored in described terminal by the current system parameter of described TD-SCDMA community.
3. method according to claim 2, wherein, the current system parameter of described TD-SCDMA community is stored as the project of list, and described list can be used in the system parameters storing at least one TD-SCDMA community.
4. method according to claim 3, wherein, upgrades when described list is updated regularly or current system parameter in described TD-SCDMA community changes.
5. method according to claim 1, wherein, judges different system cell reselection of rattling whether can be caused to comprise about the current system parameter of GSM community and TD-SCDMA community:
By the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding,
If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community;
If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
6. method according to claim 1, also comprises:
When described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And
When described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.
7. method according to claim 1, wherein, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be the signal level value measured relative to cell downlink.
8. method according to claim 1, wherein, described is the parameter TDD_Qoffset of the BCCH channels broadcast via GSM community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be TDDsearchRATgsm=SsearchRATgsm+(Qrxlevmin+QrxlevminOffset)+Pcompensation, wherein, parameter SsearchRATgsm, parameter Qrxlevmin, parameter QrxlevminOffset and parameter Pcompensation is from the system message of TD-SCDMA community, SsearchRATgsm represents the measurement thresholding relative to cell selection reception level value Srxlev for starting the measurement to GSM community in TD-SCDMA community, parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represents power compensating value when can not launch with the maximum transmission power of community permission when subscriber equipment uses RACH access network.
9. method according to claim 1, wherein, described reselection hysteresis value is greater than 0 dBm.
10. method according to claim 9, wherein, described reselection hysteresis value is between 2dBm to 4dBm.
11. 1 kinds for implementing the terminal of different system cell gravity treatment, described terminal comprises:
Judging unit (201), for when described terminal resides in GSM community, judges different system whether can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community;
Performance element (203), for can cause at the current system parameter about GSM community and TD-SCDMA community different system rattle cell reselection, using be used for starting in TD-SCDMA community to the measurement of GSM community when pre-test thresholding and reselection hysteresis value sum are as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community
When the current system parameter about GSM community and TD-SCDMA community can not cause different system rattle cell reselection, using the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community as the gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community, carry out the gravity treatment from GSM community to TD-SCDMA community.
12. terminals according to claim 11, also comprise:
Acquiring unit (205), for when described terminal resides in described TD-SCDMA community, obtains the current system parameter of described TD-SCDMA community; And
Memory cell (207), for being stored in the current system parameter of the described TD-SCDMA community obtained in described terminal.
13. terminals according to claim 12, wherein, the current system parameter of described TD-SCDMA community is stored as the project of list, and described list can be used in the system parameters storing at least one TD-SCDMA community.
14. terminals according to claim 13, wherein, upgrade when described list is updated regularly or current system parameter in described TD-SCDMA community changes.
15. terminals according to claim 11, wherein, described judging unit (201) comprising:
Comparing unit (209), for by the current gravity treatment thresholding be used for from GSM cell reselection to TD-SCDMA community be used for starting TD-SCDMA community to the measurement of GSM community compared with the pre-test thresholding,
If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be greater than for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can not be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community;
If for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community be less than or equal to for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding, then different system can be caused to rattle cell reselection about the current system parameter of GSM community and TD-SCDMA community.
16. terminals according to claim 11, described performance element (203) also comprises:
Measuring unit (211), for when described terminal resides in GSM community, use be used for starting in GSM community to the measurement of TD-SCDMA community when pre-test thresholding, start the measurement to TD-SCDMA community; And
Measure gravity treatment unit (213), for when described terminal resides in TD-SCDMA community, use to be used for starting in TD-SCDMA community and measurement to GSM community is started when pre-test thresholding to the measurement of GSM community, and the gravity treatment using the current gravity treatment thresholding be used for from TD-SCDMA cell reselection to GSM community to carry out from TD-SCDMA community to GSM community.
17. terminals according to claim 11, wherein, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be signal level value relative to cell measurement.
18. terminals according to claim 11, wherein, described is the parameter TDD_Qoffset of the BCCH channels broadcast via GSM community for the current gravity treatment thresholding from GSM cell reselection to TD-SCDMA community, described for start in TD-SCDMA community to the measurement of GSM community when pre-test thresholding be TDDsearchRATgsm=SsearchRATgsm+(Qrxlevmin+QrxlevminOffset)+Pcompensation, wherein, parameter SsearchRATgsm, parameter Qrxlevmin, parameter QrxlevminOffset and parameter Pcompensation is from the system message of TD-SCDMA community, SsearchRATgsm represents the measurement thresholding relative to cell selection reception level value Srxlev for starting the measurement to GSM community in TD-SCDMA community, parameter Qrxlevmin represents the lowest signal requirement to community to be selected, parameter QrxlevminOffset represents the deviant of relative Qrxlevmin, and parameter Pcompensation represents power compensating value when can not launch with the maximum transmission power of community permission when subscriber equipment uses RACH access network.
19. terminals according to claim 11, wherein, described reselection hysteresis value is greater than 0 dBm.
20. terminals according to claim 19, wherein, described reselection hysteresis value is between 2dBm to 4dBm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134836.0A CN104980984B (en) | 2014-04-04 | 2014-04-04 | Method and terminal for reselecting inter-system cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134836.0A CN104980984B (en) | 2014-04-04 | 2014-04-04 | Method and terminal for reselecting inter-system cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104980984A true CN104980984A (en) | 2015-10-14 |
| CN104980984B CN104980984B (en) | 2020-08-04 |
Family
ID=54276942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134836.0A Active CN104980984B (en) | 2014-04-04 | 2014-04-04 | Method and terminal for reselecting inter-system cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104980984B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845343A (en) * | 2016-09-30 | 2019-06-04 | 瑞典爱立信有限公司 | Method and node for the cell selection in cordless communication network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227705A (en) * | 2007-01-17 | 2008-07-23 | 华为技术有限公司 | System and method for switching terminal to macro cell and terminal, access node and gateway thereof |
| US20100240368A1 (en) * | 2007-07-11 | 2010-09-23 | David Fox | Controlling reselection in a telecommunications network |
| CN101854690A (en) * | 2009-03-31 | 2010-10-06 | 北京三星通信技术研究有限公司 | Cell reselection method and dual-mode terminal thereof |
| CN102264108A (en) * | 2010-05-25 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for adjusting mobility parameters |
-
2014
- 2014-04-04 CN CN201410134836.0A patent/CN104980984B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227705A (en) * | 2007-01-17 | 2008-07-23 | 华为技术有限公司 | System and method for switching terminal to macro cell and terminal, access node and gateway thereof |
| US20100240368A1 (en) * | 2007-07-11 | 2010-09-23 | David Fox | Controlling reselection in a telecommunications network |
| CN101854690A (en) * | 2009-03-31 | 2010-10-06 | 北京三星通信技术研究有限公司 | Cell reselection method and dual-mode terminal thereof |
| CN102264108A (en) * | 2010-05-25 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for adjusting mobility parameters |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845343A (en) * | 2016-09-30 | 2019-06-04 | 瑞典爱立信有限公司 | Method and node for the cell selection in cordless communication network |
| CN109845343B (en) * | 2016-09-30 | 2021-07-06 | 瑞典爱立信有限公司 | Method and node for cell selection in a wireless communication network |
| US11166229B2 (en) | 2016-09-30 | 2021-11-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and nodes for cell selection in a wireless communication network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104980984B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10334497B2 (en) | Method, terminal, and system for cell reselection | |
| CN101682872B (en) | Method for inter-radio access technology cell reselection | |
| KR101406041B1 (en) | System and method for interference beacon transmission | |
| KR20090125122A (en) | Selectively acquired system information | |
| JP2016146669A (en) | Method and apparatus of resolving pci confusion, for providing inbound mobility to closed subscriber group | |
| US20140378125A1 (en) | Network element, integrated circuit, cellular communication system and method therefor | |
| US20130252614A1 (en) | Methods for preferably camping on and staying in a cell belonging to a high data transmission throughput rat and communications apparatuses utilizing the same | |
| JP2015535161A (en) | Cell reselection method and apparatus, base station | |
| US9357423B2 (en) | Network element, integrated circuit cellular communication system and method for capturing user equipment measurements | |
| JP5559686B6 (en) | Mobile station and standby method | |
| CN111448823A (en) | Network reporting in cellular networks | |
| CN115280850A (en) | Method and apparatus for implementing cell selection or cell reselection procedures | |
| CN104980984A (en) | Different system cell reselection method and Different system cell reselection terminal | |
| EP2365714B1 (en) | Reselection of cells in a TDMA cellular network | |
| WO2009138014A1 (en) | A cell reselection method and apparatus | |
| JP2013258623A (en) | Mobile communication terminal and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |