CN101557627A

CN101557627A - Method for reelecting cell, device and communication system

Info

Publication number: CN101557627A
Application number: CNA2008100910374A
Authority: CN
Inventors: 戴明增; 谢铂云
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-04-10
Filing date: 2008-04-10
Publication date: 2009-10-14
Anticipated expiration: 2028-04-10
Also published as: CN101557627B

Abstract

The invention discloses a method for reelecting a cell. When a measured value of the current service cell is smaller than or equal to a first preset measuring threshold, a frequency of the same priority level and/or a cell which corresponds to a system are/is measured, and the same priority level is the same as the frequency of the current service cell and/or the priority level of the system; and the cell is reelected according to the measured frequency of the same priority level and/or the measured value of the cell which corresponds to the system and reelect conditions of the cell. The invention also discloses equipment for reelecting the cell and a communication system. The embodiment enables a mobile terminal to stay in a more appropriate cell soon by measuring the frequency of the same priority level and/or the cell which corresponds to the system when the measured value of the current service cell is smaller than or equal to the first preset measuring threshold, and reelecting the cell according to the measured value and the reelect conditions of the preset cell.

Description

Residence reselecting, device and communication system

Technical field

The present invention relates to the communications field, particularly a kind of residence reselecting, device and communication system.

Background technology

Development along with mobile communication technology, increasing mobile communication system has appearred, as second generation mobile communication system GSM (Global System For Mobile Communication, global system for mobile communications), 3-G (Generation Three mobile communication system) WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA) inserts) system, CDMA2000 (Code Division Multiple Access 2000,2000 editions code division multiple access inserts) system, TD-SCDMA (Time Division-Synchronous CDMA, the time-division synchronization CDMA) system, developing the long evolving system (LTE of formulation, Long TermEvolution), WIMAX (World Interoperability for Microwave Access, the microwave access of global-intercommunication) system etc.

When portable terminal is in idle condition, can move to the sub-district that another is more suitable for than current service cell by current resident sub-district by the sub-district gravity treatment.Under the situation of multiple systems coexistence, when portable terminal carries out the sub-district gravity treatment, the sub-district that the interior a plurality of frequencies of native system and a plurality of systems will occur is available, therefore, in the LTE system, introduced priority for the sub-district gravity treatment, when the signal quality of Serving cell (Serving Cell) is less than or equal to the measurement thresholding that sets, portable terminal is measured different frequency layer or system's corresponding district according to priority, so that choose more suitably sub-district, and portable terminal resides in the frequency layer or the system of high priority as far as possible.

At present, in the LTE system, allow to occur the frequency layer that All factors being equal, preference will be give to grade (Equal Priority), when the signal quality (S value) of Serving cell was less than or equal to that (inter-RAT) and alien frequencies (inter-frequency) measure thresholding between system, portable terminal started the frequency layer of All factors being equal, preference will be give to level or the more frequency layer of low priority or the measurement of system.Gravity treatment to the standard of sub-district of All factors being equal, preference will be give to level frequency layer is in the prior art: the cell reselection criteria of level frequency layer that All factors being equal, preference will be give to is based on (intra-frequency) cell reselection criteria down frequently, promptly to the sort R standard of (ranking) of sub-district.

In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:

The residence reselecting that provides in the prior art makes that portable terminal can't gravity treatment be to than current service cell proper cell as early as possible in the frequency of a plurality of All factors being equal, preference will be give to levels and/or system's corresponding district, and the power consumption of portable terminal is bigger.

Summary of the invention

For portable terminal can be resided in as early as possible than current service cell proper cell, the embodiment of the invention provides a kind of residence reselecting, device and communication system.Described technical scheme is as follows:

A kind of residence reselecting, described method comprises:

It is first default when measuring thresholding that the measured value of current service cell is less than or equal to, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, and it is described that All factors being equal, preference will be give to that level is identical with the priority of described current service cell place frequency and/or system;

Carry out the sub-district gravity treatment according to measuring described All factors being equal, preference will be give to the frequency of level and/or the measured value and the sub-district reselection conditions of system's corresponding district.

A kind of sub-district gravity concentration apparatus, described device comprises:

Trigger module, the measured value that is used for current service cell is less than or equal to first to be preset when measuring thresholding, triggers first measurement module;

First measurement module, when being used to receive the triggering of described trigger module, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, it is described that All factors being equal, preference will be give to that level is identical with the priority of current service cell place frequency and/or system;

The first gravity treatment module is used for carrying out the sub-district gravity treatment according to described first measurement module measured measured value and sub-district reselection conditions.

A kind of communication system, described system comprises:

Network equipment is used to set first default thresholding and the sub-district reselection conditions measured, and the described first default measurement thresholding and sub-district reselection conditions are sent to user side equipment;

User side equipment, be used to receive described network equipment and send first default thresholding and the sub-district reselection conditions measured, the measured value of current service cell is less than or equal to described first to be preset when measuring thresholding, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, it is described that All factors being equal, preference will be give to that level is identical with the priority of described current service cell place frequency and/or system; Carry out the sub-district gravity treatment according to measuring described All factors being equal, preference will be give to the frequency of level and/or the measured value and the described sub-district reselection conditions of system's corresponding district.

The embodiment of the invention is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, the frequency of level and/or the measured value and the sub-district reselection conditions of system's corresponding district are carried out the sub-district gravity treatment according to measuring that All factors being equal, preference will be give to, make portable terminal can be in the frequency of a plurality of All factors being equal, preference will be give to levels and/or system's corresponding district as early as possible gravity treatment reduce the power consumption of portable terminal to than current service cell proper cell.

Description of drawings

Fig. 1 is the residence reselecting flow chart that the embodiment of the invention 1 provides;

Fig. 2 is the residence reselecting flow chart that the embodiment of the invention 2 provides;

Fig. 3 is the residence reselecting flow chart that the embodiment of the invention 3 provides;

Fig. 4 is the residence reselecting flow chart that the embodiment of the invention 4 provides;

Fig. 5 is the residence reselecting flow chart that the embodiment of the invention 5 provides;

Fig. 6 is the residence reselecting flow chart that the embodiment of the invention 6 provides;

Fig. 7 is the residence reselecting flow chart that the embodiment of the invention 7 provides;

Fig. 8 is the residence reselecting flow chart that the embodiment of the invention 8 provides;

Fig. 9 is the residence reselecting flow chart that the embodiment of the invention 9 provides;

Figure 10 is the residence reselecting flow chart that the embodiment of the invention 10 provides;

Figure 11 is the structure chart of the sub-district gravity concentration apparatus that provides of the embodiment of the invention 11;

Figure 12 is the structure chart of the communication system that provides of the embodiment of the invention 12.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.

When the embodiment of the invention is less than or equal to predefined measurement thresholding by the measured value in current service cell, measure that All factors being equal, preference will be give to level frequency and/or system's corresponding district or more frequency and/or system's corresponding district of low priority, carry out the sub-district gravity treatment according to measured measured value and sub-district reselection conditions, make portable terminal can be in the frequency of a plurality of All factors being equal, preference will be give to levels and/or system's corresponding district as early as possible gravity treatment to than current service cell proper cell.

When the embodiment of the invention is carried out the sub-district gravity treatment at portable terminal, to the selection of different frequencies and/or system based on priority, in addition, at GERAN (GSM/EDGE Radio Access Network, GSM EDGE Radio Access Network) can also comprise the selection of frequency range (Frequency Band) in, priority in the embodiment of the invention is divided into dedicated priority tabulation and public priority list, wherein the dedicated priority tabulation is passed through RRC (Radio Resource Control by network side, Radio Resource control) dedicated signaling is handed down to portable terminal, and public priority list is handed down to portable terminal by network side by system message.Comprise Serving cell place frequency and side frequency in the priority list.The priority of adjacent system also can be each frequency of adjacent system or the priority of frequency allocation.Said system is also referred to as RAT (RadioAccess Technology in the embodiment of the invention, wireless access technology), comprise: GERAN, UTRAN (Universal TerrestrialRAN, wireless universal ground Access Network), E-UTRAN (Evolved-UTRAN, the wireless universal ground Access Network of evolution), level that All factors being equal, preference will be give in the embodiment of the invention and low priority more refer to compare with the priority of the frequency (or system) at current service cell place.

Embodiment 1

Referring to Fig. 1, present embodiment provides a kind of residence reselecting, and this method preestablishes the first default thresholding of measuring, and is used to start the measurement of the frequency corresponding district of All factors being equal, preference will be give to level, and this method comprises:

Step 101: when the measured value of this current Serving cell be less than or equal to first default when measuring thresholding, the frequency corresponding district of the level of measuring that All factors being equal, preference will be give to, wherein, the frequency of level that All factors being equal, preference will be give to refers to the frequency that priority equates with current service cell place frequency;

Step 102: the measured value and the sub-district reselection conditions of frequency corresponding district according to measured All factors being equal, preference will be give to level carried out the sub-district gravity treatment;

The frequency of level that All factors being equal, preference will be give to may corresponding a plurality of sub-districts, check the measured value of each sub-district, carry out the sub-district gravity treatment according to measured value and sub-district reselection conditions, for example, the frequency re-selections condition of level that the measured value of certain sub-district satisfies that All factors being equal, preference will be give to, then gravity treatment is to this sub-district; The frequency re-selections condition of level that the measured value of the frequency corresponding district of level that perhaps All factors being equal, preference will be give to does not satisfy that All factors being equal, preference will be give to, then measure the more frequency corresponding district of low priority, select a measured value to satisfy the more sub-district of the frequency re-selections condition of low priority from measured sub-district, gravity treatment is to this sub-district.

The residence reselecting that present embodiment provides preferably carries out in the following cases:

There is the priority frequency identical, and do not have the higher frequency of frequency at the described current service cell of alternative priority ratio place with the frequency at current service cell place.

Wherein, to be used to carry out the measured value of sub-district gravity treatment judgement be the value of the various performances of sub-district to portable terminal in the present embodiment, signal quality for example, signal strength signal intensity or received power etc.

Wherein, first default setting and the sub-district reselection conditions of measuring thresholding all is to be set by network side, and is handed down to portable terminal.First default being provided with of thresholding of measurement mainly is to set according to information such as signal quality, frequency, priority.For example be less than or equal to first default when measuring thresholding when the measured value of this current Serving cell, the preferential startup measured and the identical sub-district of frequency, current service cell place, and then start to measure the sub-district of other frequency of the system identical with current service cell place system, restart the measurement system corresponding district different at last with current service cell place system.The first default thresholding of measuring that present embodiment is set is used for the preferential frequency corresponding district that starts the level of measuring that All factors being equal, preference will be give to.

The portable terminal of present embodiment is default when measuring thresholding by be less than or equal to first at the current service cell measured value, the frequency corresponding district of the level of start measuring that All factors being equal, preference will be give to, and carry out the sub-district gravity treatment, when making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 2

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 2, method of cell reselection comprises:

Step 201:, be the first default measurement thresholding for frequency and common measurement thresholding of frequency setting of low priority more of All factors being equal, preference will be give to level;

Step 202:, the frequency of All factors being equal, preference will be give to level according to the R standard sorted, is the highest default sub-district gravity treatment thresholding in sub-district of ordering in the R standard sorted based on the co-frequency cell reselection criteria;

Wherein, this R standard refers to that portable terminal sorts according to measured value with reference to the letter received power, amount of hysteresis and side-play amount to the sub-district that same frequently all satisfy the S criterion.In agreement (3GPP TS36.304), the S criterion is stipulated, promptly measured earlier the signal strength signal intensity or the signal quality of each sub-district, then signal strength signal intensity or signal quality and the threshold value that sets are compared, satisfy the S criterion if just think greater than threshold value.Simplified formula is as follows: Q _Rxlevmeas＞Q _Rxlevmin, Q wherein _RxlevmeasBe the signal strength signal intensity or the signal quality of the sub-district that measures, Q _RxlevminBe threshold value.

Step 203: whether the signal quality of judging current service cell is less than or equal to the first default measurement thresholding, if the signal quality of current service cell is less than or equal to first default thresholding, the execution in step 204 measured; Otherwise, execution in step 208;

Step 204: portable terminal starts the frequency of level of measuring that All factors being equal, preference will be give to and the signal quality of the frequency corresponding district of low priority more simultaneously;

Step 205: whether the signal quality of measuring the highest sub-district of ordering in the resulting measured value satisfies sub-district gravity treatment thresholding, if, execution in step 206; Otherwise, execution in step 207;

Step 206: this portable terminal gravity treatment is the highest sub-district of ordering in the R standard sorted, finishes this sub-district gravity treatment;

Step 207: this portable terminal arrives the more frequency corresponding district of low priority according to the measured value gravity treatment, finishes this sub-district gravity treatment;

Step 208: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

The portable terminal of present embodiment is default when measuring thresholding by be less than or equal to first at the current service cell signal quality, the frequency of level of start measuring that All factors being equal, preference will be give to and the frequency corresponding district of low priority more, and carry out the sub-district gravity treatment, when making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 3

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 3, method of cell reselection comprises:

Step 301:, be the first default measurement thresholding for frequency and common measurement thresholding of frequency setting of low priority more of All factors being equal, preference will be give to level;

Step 302: be the default sub-district gravity treatment thresholding of frequency corresponding district of All factors being equal, preference will be give to level;

Step 303: whether the signal quality of judging current service cell is less than or equal to the first default measurement thresholding, if the signal quality of current service cell is less than or equal to first default thresholding, the execution in step 304 measured; Otherwise, execution in step 308;

Step 304: portable terminal starts the frequency of level of measuring that All factors being equal, preference will be give to and the signal quality of the frequency corresponding district of low priority more simultaneously.

Step 305: the frequency corresponding district of measuring the level that whether has in the resulting measured value that All factors being equal, preference will be give to satisfies sub-district gravity treatment thresholding, if, execution in step 306; Otherwise, execution in step 307;

Step 306: this portable terminal gravity treatment finishes this sub-district gravity treatment to satisfying sub-district gravity treatment thresholding All factors being equal, preference will be give to a level frequency corresponding district;

Step 307: this portable terminal basis more measured value gravity treatment of the frequency corresponding district of low priority arrives the more frequency corresponding district of low priority, finishes this sub-district gravity treatment;

Step 308: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

The portable terminal of present embodiment is default when measuring thresholding by be less than or equal to first at the current service cell signal quality, the frequency of level of start measuring that All factors being equal, preference will be give to and the frequency corresponding district of low priority more, and carry out the sub-district gravity treatment, difference from Example 2 is, gravity treatment thresholding in sub-district is not to set at the highest sub-district of ordering, but set at the frequency corresponding district of all All factors being equal, preference will be give to levels, when making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 4

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 4, method of cell reselection comprises:

Step 401 is similar to step 201, no longer describes in detail;

Step 402: based on the co-frequency cell reselection criteria, to All factors being equal, preference will be give to the level frequency according to the R standard sorted;

Step 403: whether the signal quality of judging current service cell is less than or equal to the first default thresholding of measuring, if, execution in step 404; Otherwise, execution in step 408;

Step 404: portable terminal starts the frequency of level of measuring that All factors being equal, preference will be give to and the signal quality of the frequency corresponding district of low priority more simultaneously;

Step 405: judge whether the highest sub-district of ordering is current service cell in the R standard, if not, execution in step 406; Otherwise, execution in step 407;

Step 406: this portable terminal gravity treatment is the highest sub-district of ordering in the R standard sorted, finishes this sub-district gravity treatment;

Step 407: this portable terminal basis more measured value gravity treatment of the frequency corresponding district of low priority arrives the more frequency corresponding district of low priority, finishes this sub-district gravity treatment;

Step 408: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

The portable terminal of present embodiment is default when measuring thresholding by be less than or equal to first at the current service cell signal quality, the frequency of level of start measuring that All factors being equal, preference will be give to and the frequency corresponding district of low priority more, and carry out the sub-district gravity treatment, be with embodiment 2 and 3 differences, not default sub-district gravity treatment thresholding, but by judging whether the highest sub-district of ordering is current service cell in the R standard, determine concrete residence reselecting, when making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 5

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 5, method of cell reselection comprises:

Step 501 is similar to step 201, no longer describes in detail;

Step 502: for portable terminal is preset thresholding at the residence time of current service cell;

Step 503: whether the signal quality of judging current service cell is less than or equal to the first default thresholding of measuring, if, execution in step 504; Otherwise, execution in step 508;

Step 504: portable terminal starts the frequency of level of measuring that All factors being equal, preference will be give to and the signal quality of the frequency corresponding district of low priority more simultaneously;

Step 505: grade measured value of frequency corresponding district carries out the sub-district gravity treatment according to All factors being equal, preference will be give to, judges whether this portable terminal finds proper cell in default residence time thresholding, if, execution in step 506; Otherwise, execution in step 507;

Step 506: this portable terminal gravity treatment finishes this sub-district gravity treatment to the suitable cell that is found;

Step 507: this portable terminal basis more measured value gravity treatment of the frequency corresponding district of low priority arrives the more frequency corresponding district of low priority, finishes this sub-district gravity treatment;

Step 508: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

The portable terminal of present embodiment is default when measuring thresholding by be less than or equal to first at the current service cell signal quality, the frequency of level of start measuring that All factors being equal, preference will be give to and the frequency corresponding district of low priority more, and carry out the sub-district gravity treatment, with embodiment 2, embodiment 3 and 4 differences are, preset sub-district gravity treatment thresholding and judge whether the highest sub-district of ordering is current service cell in the R standard, but by the concrete residence reselecting of residence time decision in current service cell, when making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 6

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 6, method of cell reselection comprises:

Step 601-step 603 and step 201-step 203 are similar, and difference is, step 601: measuring thresholding for one of the frequency setting of All factors being equal, preference will be give to level, is first to measure thresholding, and other is identical, no longer describes in detail;

Step 604: measure thresholding if the signal quality of current service cell is less than or equal to first, portable terminal starts the signal quality of the frequency corresponding district of the level of measuring that All factors being equal, preference will be give to.

Step 605: whether the signal quality of measuring the highest sub-district of ordering in the resulting measured value satisfies sub-district gravity treatment thresholding, if, execution in step 606; Otherwise, execution in step 607;

Step 606: this portable terminal gravity treatment is the highest sub-district of ordering in the R standard sorted, finishes this sub-district gravity treatment;

Step 607: this portable terminal starts measures the more signal quality of the frequency corresponding district of low priority, arrives the more frequency corresponding district of low priority according to the measured value gravity treatment, finishes this sub-district gravity treatment;

Step 608: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

Be with embodiment 2, embodiment 3, embodiment 4 and embodiment 5 differences: when the portable terminal of present embodiment is less than or equal to the first measurement thresholding at the current service cell signal quality, the frequency corresponding district of the level of start measuring that All factors being equal, preference will be give to, and carry out the sub-district gravity treatment, when the signal quality of the highest sub-district of ordering does not satisfy sub-district gravity treatment thresholding, start and measure the more frequency corresponding district of low priority, and carry out the sub-district gravity treatment; When making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 7

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 7, method of cell reselection comprises:

Step 701-step 703 and step 301-step 303 are similar substantially, and difference is, step 701: measuring thresholding for one of the frequency setting of All factors being equal, preference will be give to level, is first to measure thresholding, and other is identical, no longer describes in detail;

Step 704: measure thresholding if the signal quality of current service cell is less than or equal to first, portable terminal starts the signal quality of the frequency corresponding district of the level of measuring that All factors being equal, preference will be give to;

Step 705: measure and whether exist the sub-district to satisfy sub-district gravity treatment thresholding in the resulting measured value, if, execution in step 706; Otherwise, execution in step 707;

Step 706: this portable terminal gravity treatment finishes this sub-district gravity treatment to satisfying sub-district gravity treatment thresholding All factors being equal, preference will be give to a level frequency corresponding district;

Step 707: this portable terminal starts measures the more signal quality of the frequency corresponding district of low priority, arrives the more frequency corresponding district of low priority according to the measurement result gravity treatment, finishes this sub-district gravity treatment;

Step 708: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

Present embodiment is similar to Example 6, when the portable terminal of present embodiment is less than or equal to the first measurement thresholding at the current service cell signal quality, the frequency corresponding district of the level of start measuring that All factors being equal, preference will be give to, and carry out the sub-district gravity treatment, when not having suitable cell to satisfy sub-district gravity treatment thresholding, start and measure the more frequency corresponding district of low priority, and carry out the sub-district gravity treatment; When making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 8

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 8, method of cell reselection comprises:

Step 801-step 803 and step 401-step 403 are similar substantially, and difference is, step 801: measuring thresholding for one of the frequency setting of All factors being equal, preference will be give to level, is first to measure thresholding, and other is identical, no longer describes in detail;

Step 804: measure thresholding if the signal quality of current service cell is less than or equal to first, portable terminal starts the signal quality of the frequency corresponding district of the level of measuring that All factors being equal, preference will be give to;

Step 805: judge whether the highest sub-district of ordering is current service cell in the R standard, if not, execution in step 806; Otherwise, execution in step 807;

Step 806: this portable terminal gravity treatment is the highest sub-district of ordering in the R standard, finishes this sub-district gravity treatment;

Step 807: this portable terminal starts measures the more signal quality of the frequency corresponding district of low priority, arrives the more frequency corresponding district of low priority according to the measured value gravity treatment, finishes this sub-district gravity treatment;

Step 808: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

Present embodiment and embodiment 6 and 7 are similar, when the portable terminal of present embodiment is less than or equal to the first measurement thresholding at the current service cell signal quality, the frequency corresponding district of the level of start measuring that All factors being equal, preference will be give to, and carry out the sub-district gravity treatment, when the highest sub-district of ordering is current service cell in the R standard, start and measure the more frequency corresponding district of low priority, and carry out the sub-district gravity treatment; When making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 9

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Fig. 9, method of cell reselection comprises:

Step 901-step 903 and step 501-5 step 03 are similar substantially, and difference is 901: measuring thresholding for one of the frequency setting of All factors being equal, preference will be give to level, is first to measure thresholding, and other is identical, no longer describes in detail;

Step 904: measure thresholding if the signal quality of current service cell is less than or equal to first, portable terminal starts the signal quality of the frequency corresponding district of the level of measuring that All factors being equal, preference will be give to;

Step 905: grade measured value of frequency corresponding district carries out the sub-district gravity treatment according to All factors being equal, preference will be give to, judges whether this portable terminal finds proper cell in default residence time thresholding, if, execution in step 906; Otherwise, execution in step 907;

Step 906: this portable terminal gravity treatment finishes this sub-district gravity treatment to the suitable cell that is found;

Step 907: this portable terminal starts measures the more signal quality of the frequency corresponding district of low priority, arrives the more frequency corresponding district of low priority according to the measured value gravity treatment, finishes this sub-district gravity treatment;

Step 908: this portable terminal does not carry out the sub-district gravity treatment, resides in current service cell, finishes this sub-district gravity treatment.

Present embodiment and embodiment 6,7 and 8 are similar, when the portable terminal of present embodiment is less than or equal to the first measurement thresholding at the current service cell signal quality, the frequency corresponding district of the level of start measuring that All factors being equal, preference will be give to, and carry out the sub-district gravity treatment, when the gravity treatment time surpasses the default thresholding of institute, start and measure the more frequency corresponding district of low priority, and carry out the sub-district gravity treatment; When making the available gravity treatment of frequency corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, make portable terminal can reside in proper sub-district as early as possible, reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 10

For convenience of explanation, be that example describes with signal quality as measuring amount in the present embodiment, measuring amount is not limited to signal quality, and referring to Figure 10, method of cell reselection comprises:

Step 1001: measuring thresholding for one of the frequency setting of All factors being equal, preference will be give to level, is first to measure thresholding;

Step 1002: measure thresholding for one of the frequency setting of low priority more, promptly second measure thresholding, this is measured thresholding and measures thresholding less than first;

Step 1003: the signal quality and first of judging current service cell is measured the relation that thresholding and second is measured thresholding, if the signal quality of current service cell is measured thresholding greater than first, carries out 1004; Measure thresholding if the signal quality of current service cell is less than or equal to first, measure thresholding, execution 1005 greater than second; Measure thresholding if the signal quality of current service cell is less than or equal to second, carry out 1006;

Step 1004: portable terminal resides in current service cell, finishes this sub-district gravity treatment;

Step 1005: the signal quality of the frequency corresponding district of level that portable terminal start to measure that All factors being equal, preference will be give to, carry out the sub-district gravity treatment according to measured value;

Step 1006: portable terminal starts measures the more signal quality of the frequency corresponding district of low priority, carries out the sub-district gravity treatment according to measured value.

Perhaps, based on above-mentioned steps 1001-step 1006 method of cell reselection, also can preestablish one All factors being equal, preference will be give to the sub-district gravity treatment thresholding of the frequency of level, sub-district gravity treatment thresholding when the frequency of the measured value of step 1005 level that do not satisfy that All factors being equal, preference will be give to, and when the signal quality of current service cell is less than or equal to the second measurement thresholding, start and measure the more step of the frequency corresponding district of low priority, and carry out the sub-district gravity treatment according to the measured value of new measurement.

Present embodiment has preestablished two and has measured thresholding, a frequency corresponding district that is used to start All factors being equal, preference will be give to level is measured, one is used to start the more frequency corresponding district measurement of low priority, and carry out the sub-district gravity treatment according to the measured value of measuring, make portable terminal can reside in more proper cell as early as possible, reduce the power consumption of portable terminal.

The method that the foregoing description provides also can combine with cell reselection criteria of the prior art, for example:

When the measured value of Serving cell was less than or equal to frequency (intra-frequency) measurement thresholding, portable terminal started the measurement to co-frequency cell, promptly measures and the interior sub-district of current service cell same frequency.When containing higher frequency in the system message (System Information), portable terminal can be measured the frequency of higher priority according to certain rule, and such as periodic measurement etc., described higher priority is to compare with the frequency at current service cell place; Default when measuring thresholding when the measured value of Serving cell less than first, start All factors being equal, preference will be give to level or the more measurement of the frequency of low priority, and carry out the sub-district gravity treatment according to measured value and sub-district gravity treatment thresholding.

The co-frequency cell reselection criteria is order standard (Ranking), portable terminal can be to all sub-districts of satisfying the S criterion according to the criterion of defined (for example, the R criterion) ordering, the highest sub-district is proper cell (suitable cell) if sort, and portable terminal arrives the highest sub-district of described ordering with gravity treatment so.

When the measured value of the frequency corresponding district of higher priority within a certain period of time greater than threshold value; Portable terminal meeting gravity treatment is to the frequency corresponding district of higher priority;

When the measured value of the lower frequency corresponding district of priority ratio current service cell within a certain period of time greater than threshold value, and the measured value of current service cell is less than the thresholding that sets; Perhaps, when this portable terminal surpassed the time of defined at the residence time of current service cell, this portable terminal meeting gravity treatment was heavy to the sub-district of the lower frequency of priority ratio current service cell.

The frequency of level that said method provides that All factors being equal, preference will be give to and more under the simultaneous scene of frequency of low priority, the solution of portable terminal measurement behavior and cell reselection process.For example: frequency layer and the more measurement of the frequency layer of low priority to all All factors being equal, preference will be give to levels have been described simultaneously, the frequency layer of the level of measuring at first still that All factors being equal, preference will be give to, and then the more frequency of low priority is measured in consideration; The gravity treatment of concrete regulation portable terminal is to All factors being equal, preference will be give to a level frequency corresponding district reuse adoption process, be provided with gravity treatment to All factors being equal, preference will be give to the sub-district gravity treatment thresholding of level in the frequency etc., and clear and definite gravity treatment in what situations is to the sub-district etc. of All factors being equal, preference will be give to level frequency, make portable terminal can reside in more proper cell as early as possible, reduce the power consumption of portable terminal.

The object of the priority in the foregoing description 1 to embodiment 10 all is to be that example describes with frequencies different in the system, wherein, system can be E-UTRAN, UTRAN or GERAN system, it also can be other system, for priority with system's situation as a reference, realize that principle is the same with the method among the above-mentioned embodiment, no longer describe in detail here.

When being the example simple declaration with system and frequency as the priority references object with embodiment 11 below, the process of sub-district gravity treatment.

Embodiment 11

May have a plurality of systems in same zone, there is one or more frequency layer in each system.Network side is provided with the priority of this portable terminal sub-district gravity treatment according to the factors such as CAMEL-Subscription-Information, carrier policy, load balance or capacity of mobile terminal of portable terminal.The set-up mode of priority has dual mode: each frequency in each system has a priority, and every class frequency has a priority (such as the 900MHZ frequency band priority is arranged, the 1800MHZ frequency band has a priority) for GERAN; Perhaps each frequency among the E-UTRAN and other each system have a priority respectively.

For convenience of explanation, present embodiment is an example with GERAN and E-UTRAN coexistence of systems, wherein, the priority of GERAN is lower than the priority of E-UTRAN system, a frequency A and frequency B are all arranged among GERAN and the E-UTRAN, and the priority of frequency A is greater than the priority of frequency B, present embodiment is that the UTRAN system is an example with the system at the current place of portable terminal, the priority of UTRAN system is between the priority of GERAN and E-UTRAN system, the pass that is priority is: E-UTRAN＞UTRAN＞GERAN, and method of cell reselection is briefly described as follows:

When portable terminal is determined to carry out the sub-district gravity treatment, relation according to system priority, at first consider in the E-UTRAN system, to carry out the sub-district gravity treatment, size according to the priority of frequency in the system is carried out the sub-district gravity treatment according to the residence reselecting among the foregoing description 2-10 in the E-UTRAN system, if when not finding proper cell, then consider in the GERAN system, to carry out the sub-district gravity treatment, concrete reselecting method carries out the sub-district gravity treatment according to the residence reselecting among the foregoing description 2-10 in the GERAN system, up to finding than current service cell proper cell, otherwise, will reside in current service cell.

The portable terminal of present embodiment is when carrying out the sub-district gravity treatment, both considered the priority of system, considered the priority between different frequency in the system again, when making the available gravity treatment of system's corresponding district when the level that has that All factors being equal, preference will be give to, portable terminal can carry out the sub-district gravity treatment according to the method that present embodiment provides, and makes portable terminal can reside in proper sub-district as early as possible, has reduced the power consumption of portable terminal, optimize cell reselection process, increased network configuration flexibility.

Embodiment 12

Referring to Figure 11, present embodiment provides a kind of sub-district gravity concentration apparatus, and this device comprises:

First measurement module, when being used to receive the triggering of trigger module, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, wherein, All factors being equal, preference will be give to, and level is identical with the priority of current service cell place frequency and/or system;

The first gravity treatment module is used for carrying out the sub-district gravity treatment according to first measurement module measured measured value and sub-district reselection conditions.

Further, when this device of specific implementation, said apparatus can also comprise receiver module, is used to receive first default thresholding and the sub-district reselection conditions measured that network side is set, and receives the network side frequency of level of setting that All factors being equal, preference will be give to and/or the sub-district gravity treatment thresholding of system;

First measurement module also is used for when the frequency of the level of measuring that All factors being equal, preference will be give to and/or system's corresponding district, measure frequency and/or system's corresponding district of low priority, wherein, low priority is to be lower than the frequency at current service cell place and/or the priority of system;

The first gravity treatment module comprises:

The first gravity treatment unit, when being used for measured value when the frequency of first measurement module level of measuring that All factors being equal, preference will be give to and/or system's corresponding district and satisfying the sub-district gravity treatment thresholding that receiver module receives, from the frequency of measured All factors being equal, preference will be give to the level of first measurement module and/or system's corresponding district, select new Serving cell;

The second gravity treatment unit, when being used for measured value when the frequency of first measurement module level of measuring that All factors being equal, preference will be give to and/or system's corresponding district and not satisfying the sub-district gravity treatment thresholding that receiver module receives, from the frequency of the measured low priority of first measurement module and/or system's corresponding district, select new Serving cell.

The first gravity treatment unit comprises:

The reselection conditions judgment sub-unit, be used for based on the co-frequency cell reselection criteria, to All factors being equal, preference will be give to the level frequency and/or system according to the R standard sorted, whether the measured value of judging the sub-district that ordering in the R standard sorted is the highest satisfies sub-district gravity treatment thresholding, or judges whether the highest sub-district of ordering is current service cell in the R standard sorted; Or whether the frequency and/or the system's corresponding district that are used to judge All factors being equal, preference will be give to level exist measured value to satisfy the sub-district of sub-district gravity treatment thresholding;

The first sub-district gravity treatment subelement is used for when the judged result of reselection conditions judgment sub-unit satisfies sub-district gravity treatment thresholding for the measured value of the highest sub-district of ordering, and gravity treatment is to the highest sub-district of this ordering;

The second sub-district gravity treatment subelement is used for when the judged result of reselection conditions judgment sub-unit is non-service cell for the highest sub-district of ordering, and gravity treatment is to non-service cell;

The 3rd sub-district gravity treatment subelement, be used for when the judged result of reselection conditions judgment sub-unit when having the sub-district of satisfying default sub-district gravity treatment thresholding, gravity treatment is to satisfying default sub-district gravity treatment thresholding All factors being equal, preference will be give to the frequency of level and/or the sub-district of system.

Said apparatus is specifically as follows portable terminal, also can be other device.

The device that present embodiment provides is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, measured value and default sub-district reselection conditions according to described measurement are carried out the sub-district gravity treatment, and then determine frequency and/or the system corresponding district of whether gravity treatment to All factors being equal, preference will be give to level, make when the frequency of the level that has that All factors being equal, preference will be give to and/or the available gravity treatment of system's corresponding district, make this device can reside in more proper cell as early as possible, reduce the power consumption of device, and optimized cell reselection process, increased network configuration flexibility.

Embodiment 13

Present embodiment provides a kind of sub-district gravity concentration apparatus, and this device comprises:

Trigger module, the measured value that is used for current service cell is less than or equal to first to be preset when measuring thresholding, triggers first measurement module; When the measured value of first measurement module does not satisfy sub-district gravity treatment thresholding, trigger second measurement module;

Second measurement module when being used to receive the triggering of trigger module, is measured frequency and/or system's corresponding district of low priority, and wherein, low priority is to be lower than the frequency at current service cell place and/or the priority of system;

The second gravity treatment module is used for from the frequency and/or the new Serving cell of system's corresponding district selection of the low priority of second measurement module measurement.

Wherein, above-mentioned first default measure thresholding, sub-district reselection conditions, All factors being equal, preference will be give to the frequency of level and/or the sub-district gravity treatment thresholding of system be that this device is set and be handed down to network side.

Further, the first gravity treatment module comprises:

The reselection conditions judging unit, be used for based on the co-frequency cell reselection criteria, to All factors being equal, preference will be give to the level frequency and/or system according to the R standard sorted, whether the measured value of judging the sub-district that ordering in the R standard sorted is the highest satisfies sub-district gravity treatment thresholding, or judges whether the highest sub-district of ordering is current service cell in the R standard sorted; Or whether the frequency and/or the system's corresponding district that are used to judge All factors being equal, preference will be give to level exist measured value to satisfy the sub-district of sub-district gravity treatment thresholding;

Gravity treatment unit, first sub-district is used for when the judged result of reselection conditions judging unit satisfies sub-district gravity treatment thresholding for the measured value of the highest sub-district of ordering, and gravity treatment is to the highest sub-district of this ordering;

Gravity treatment unit, second sub-district is used for when the judged result of reselection conditions judging unit is non-service cell for the highest sub-district of ordering, and gravity treatment is to non-service cell;

Gravity treatment unit, the 3rd sub-district, be used for when the judged result of reselection conditions judging unit when having the sub-district of satisfying default sub-district gravity treatment thresholding, gravity treatment is to satisfying default sub-district gravity treatment thresholding All factors being equal, preference will be give to the frequency of level and/or the sub-district of system.

Said apparatus is specifically as follows portable terminal, can be other device.

The device that present embodiment provides is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, measured value and default sub-district reselection conditions according to described measurement are carried out the sub-district gravity treatment, and then determine frequency and/or the system corresponding district of whether gravity treatment to All factors being equal, preference will be give to level, make when the frequency of the level that has that All factors being equal, preference will be give to and/or the available gravity treatment of system's corresponding district, this device can reside in more proper cell as early as possible, reduce the power consumption of device, and optimized cell reselection process, increased network configuration flexibility.

Embodiment 14

Trigger module, the measured value that is used for current service cell is less than or equal to first to be preset when measuring thresholding, triggers first measurement module; The measured value of current service cell is less than or equal to second to be preset when measuring thresholding, triggers second measurement module;

Wherein, the above-mentioned first default measurement thresholding, sub-district reselection conditions, the second default thresholding of measuring are that this device is set and be handed down to network side.

Further, the first gravity treatment module comprises:

The device that present embodiment provides is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, measured value and default sub-district reselection conditions according to described measurement are carried out the sub-district gravity treatment, and then determine frequency and/or the system corresponding district of whether gravity treatment to All factors being equal, preference will be give to level, make when the frequency of the level that has that All factors being equal, preference will be give to or the available gravity treatment of system's corresponding district, this device can reside in more proper cell as early as possible, reduce the power consumption of device, and optimized cell reselection process, increased network configuration flexibility.

Embodiment 15

Trigger module, the measured value that is used for current service cell is less than or equal to first to be preset when measuring thresholding, triggers first measurement module; The measured value of measuring when first measurement module does not satisfy sub-district gravity treatment thresholding, and the measured value of current service cell is less than or equal to second defaultly when measuring thresholding, triggers second measurement module;

The first gravity treatment module is used for carrying out the sub-district gravity treatment according to first measurement module measured measured value and sub-district reselection conditions;

Wherein, the first default thresholding, sub-district reselection conditions, second measured defaultly measured thresholding and All factors being equal, preference will be give to the frequency of level and/or the sub-district gravity treatment thresholding of system are that this device is set and be handed down to network side.

The first gravity treatment module comprises:

The device that present embodiment provides is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, carry out the sub-district gravity treatment according to measured value and sub-district reselection conditions, and then determine frequency and/or the system corresponding district of whether gravity treatment to All factors being equal, preference will be give to level, make when the frequency of the level that has that All factors being equal, preference will be give to and or during the available gravity treatment of system's corresponding district, this device can reside in more proper cell as early as possible, reduce the power consumption of device, and optimized cell reselection process, increased network configuration flexibility.

Embodiment 16

Referring to Figure 12, present embodiment provides a kind of communication system, and this system comprises:

Network equipment is used to set first default thresholding and the sub-district reselection conditions measured, and the first default measurement thresholding and sub-district reselection conditions are sent to user side equipment;

User side equipment, be used to receive network equipment and send first default thresholding and the sub-district reselection conditions measured, the measured value of current service cell is less than or equal to first to be preset when measuring thresholding, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, wherein, All factors being equal, preference will be give to, and level is identical with the priority of current service cell place frequency and/or system; The frequency of level and/or the measured value and the sub-district reselection conditions of system's corresponding district are carried out the sub-district gravity treatment according to All factors being equal, preference will be give to.

Wherein, this user side equipment can be specially the sub-district gravity concentration apparatus among the foregoing description 12-15, and this user side equipment can be portable terminal or miscellaneous equipment.

The system that present embodiment provides is less than or equal to first default when measuring thresholding by the measured value in current service cell, frequency and/or system's corresponding district of the level of measuring that All factors being equal, preference will be give to, the frequency of level and/or the measured value and the sub-district reselection conditions of system's corresponding district are carried out the sub-district gravity treatment according to measuring that All factors being equal, preference will be give to, and then determine frequency and/or the system corresponding district of whether gravity treatment to All factors being equal, preference will be give to level, make when the frequency of the level that has that All factors being equal, preference will be give to and/or the available gravity treatment of system's corresponding district, this user side equipment can reside in more proper cell as early as possible, the power consumption of reduction equipment, and optimized cell reselection process, increased network configuration flexibility.

All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a residence reselecting is characterized in that, described method comprises:

2. residence reselecting as claimed in claim 1 is characterized in that, when the frequency of the level of measuring that All factors being equal, preference will be give to and/or system's corresponding district, also comprises:

Measure frequency and/or system's corresponding district of low priority, described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

When the measured value of the frequency of measuring described All factors being equal, preference will be give to level and/or system's corresponding district does not satisfy the sub-district gravity treatment thresholding of the frequency of described All factors being equal, preference will be give to level and/or system, according to the measured value of frequency and/or system's corresponding district of described low priority, from the frequency of described low priority and/or system's corresponding district, select new Serving cell.

3. residence reselecting as claimed in claim 1 is characterized in that, described method also comprises:

When the measured value of the frequency of measuring described All factors being equal, preference will be give to level and/or system's corresponding district does not satisfy the sub-district gravity treatment thresholding of the frequency of described All factors being equal, preference will be give to level and/or system, measure frequency and/or system's corresponding district of low priority, described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

According to the measured value of frequency and/or system's corresponding district of described low priority, from the frequency of described low priority and/or system's corresponding district, select new Serving cell.

4. residence reselecting as claimed in claim 1 is characterized in that, described method also comprises:

The measured value of described current service cell is less than or equal to second to be preset when measuring thresholding, measures frequency and/or system's corresponding district of low priority, and described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

5. residence reselecting as claimed in claim 1 is characterized in that, described method also comprises:

When the measured value of the frequency of measuring described All factors being equal, preference will be give to level and/or system's corresponding district does not satisfy described All factors being equal, preference will be give to the frequency of level and/or the sub-district gravity treatment thresholding of system, and the measured value of described current service cell is less than or equal to second to be preset when measuring thresholding, measure frequency and/or system's corresponding district of low priority, described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

6. as arbitrary described residence reselecting in the claim 1 to 5, it is characterized in that described sub-district reselection conditions is:

Described All factors being equal, preference will be give to the level frequency and/or system's corresponding district in exist measured value to satisfy the sub-district of sub-district gravity treatment thresholding;

Described measured value and sub-district reselection conditions according to the frequency of measuring described All factors being equal, preference will be give to level and/or system's corresponding district carried out the sub-district gravity treatment and is:

Described portable terminal gravity treatment is to satisfying described sub-district gravity treatment thresholding All factors being equal, preference will be give to the frequency of level and/or the sub-district of system.

7. as arbitrary described residence reselecting in the claim 1 to 5, it is characterized in that described sub-district reselection conditions is:

Based on the co-frequency cell reselection criteria, according to the R standard sorted, the measured value of the highest sub-district of ordering is more than or equal to sub-district gravity treatment thresholding in the described R standard sorted to the frequency of described All factors being equal, preference will be give to level and/or system;

Described portable terminal gravity treatment is to the highest sub-district of described ordering.

8. as arbitrary described residence reselecting in the claim 1 to 5, it is characterized in that described sub-district reselection conditions is:

Based on the co-frequency cell reselection criteria, to described All factors being equal, preference will be give to the level frequency and/or system according to the R standard sorted, in the described R standard sorted ordering the highest sub-district be non-service cell;

Correspondingly, described measured value and sub-district reselection conditions according to the frequency of measuring described All factors being equal, preference will be give to level and/or system's corresponding district carried out the sub-district gravity treatment and is:

Described portable terminal gravity treatment is to described non-service cell.

9. a sub-district gravity concentration apparatus is characterized in that, described device comprises:

10. sub-district as claimed in claim 9 gravity concentration apparatus, it is characterized in that, described first measurement module also is used for when the frequency of the level of measuring that All factors being equal, preference will be give to and/or system's corresponding district, measure frequency and/or system's corresponding district of low priority, described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

The described first gravity treatment module comprises:

The first gravity treatment unit, be used for when measured value that described first measurement module is measured the frequency of described All factors being equal, preference will be give to level and/or system's corresponding district satisfies sub-district gravity treatment thresholding, from the frequency of measured All factors being equal, preference will be give to the level of described first measurement module and/or system's corresponding district, select new Serving cell;

The second gravity treatment unit, be used for when measured value that described first measurement module is measured the frequency of described All factors being equal, preference will be give to level and/or system's corresponding district does not satisfy described sub-district gravity treatment thresholding, from the frequency of the measured low priority of described first measurement module and/or system's corresponding district, select new Serving cell.

11. sub-district as claimed in claim 9 gravity concentration apparatus, it is characterized in that, described trigger module also is used for triggering second measurement module when measured value that described first measurement module is measured the frequency of described All factors being equal, preference will be give to level and/or system's corresponding district does not satisfy sub-district gravity treatment thresholding;

Described device also comprises:

Second measurement module when being used to receive the triggering of described trigger module, is measured frequency and/or system's corresponding district of low priority, and described low priority is to be lower than the frequency at described current service cell place and/or the priority of system;

The second gravity treatment module is used for selecting new Serving cell from frequency and/or system's corresponding district of the measured low priority of described second measurement module.

12. sub-district as claimed in claim 9 gravity concentration apparatus is characterized in that, it is second default when measuring thresholding that the measured value that described trigger module also is used for described current service cell is less than or equal to, and triggers second measurement module;

Described device also comprises:

13. sub-district as claimed in claim 9 gravity concentration apparatus, it is characterized in that, described trigger module also is used for measuring described All factors being equal, preference will be give to the frequency of level and/or the measured value of system's corresponding district does not satisfy sub-district gravity treatment thresholding when described first measurement module, and the measured value of described current service cell is less than or equal to second to be preset when measuring thresholding, triggers second measurement module;

Described device also comprises:

14., it is characterized in that the described first gravity treatment module comprises as arbitrary described sub-district gravity concentration apparatus in the claim 9 to 13:

The reselection conditions judging unit, be used for based on the co-frequency cell reselection criteria, to described All factors being equal, preference will be give to the level frequency and/or system according to the R standard sorted, whether the measured value of judging the sub-district that ordering in the described R standard sorted is the highest satisfies sub-district gravity treatment thresholding, or judges whether the highest sub-district of ordering is current service cell in the R standard sorted; Or whether the frequency and/or the system's corresponding district that are used to judge described All factors being equal, preference will be give to level exist measured value to satisfy the sub-district of sub-district gravity treatment thresholding;

Gravity treatment unit, first sub-district, when the measured value that is used for judged result when described reselection conditions judging unit and is the highest sub-district of described ordering satisfied sub-district gravity treatment thresholding, gravity treatment was to the highest sub-district of this ordering;

Gravity treatment unit, second sub-district, when being used for judged result when described reselection conditions judging unit and being the highest sub-district of described ordering and being non-service cell, gravity treatment is to described non-service cell;

Gravity treatment unit, the 3rd sub-district is used for when the judged result of described reselection conditions judging unit satisfies the sub-district of sub-district gravity treatment thresholding for existing, and gravity treatment is to the frequency that satisfies described sub-district gravity treatment thresholding All factors being equal, preference will be give to grade and/or the sub-district of system.

15. a communication system is characterized in that, described system comprises: