WO2015161803A1 - 小区重选方法和移动终端 - Google Patents

小区重选方法和移动终端 Download PDF

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Publication number
WO2015161803A1
WO2015161803A1 PCT/CN2015/077221 CN2015077221W WO2015161803A1 WO 2015161803 A1 WO2015161803 A1 WO 2015161803A1 CN 2015077221 W CN2015077221 W CN 2015077221W WO 2015161803 A1 WO2015161803 A1 WO 2015161803A1
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WIPO (PCT)
Prior art keywords
cell
quality
good
signal strength
serving cell
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PCT/CN2015/077221
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English (en)
French (fr)
Inventor
祁建锋
于亚军
沈丽
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华为终端有限公司
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Priority to US15/305,984 priority Critical patent/US9820207B2/en
Publication of WO2015161803A1 publication Critical patent/WO2015161803A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present invention relate to a wireless communication technology, and in particular, to a cell reselection method and a mobile terminal.
  • the mobile terminal User Equipment
  • UE User Equipment
  • 3GPP 3rd Generation Partnership Project
  • the selection/reselection parameters of the system message come from the line to decide whether to perform cell selection/reselection, and to switch between different systems.
  • the UE measurement When the UE measurement is informed that the signal quality of the currently camped serving cell is not good, and the signal quality of the neighboring cell is relatively good, it is required to switch from the current server cell to the neighboring cell according to the above parameters, so as to ensure that the UE always resides in the quality. Relatively good in the community.
  • the UE since the UE decides whether to perform cell handover according to the selection/reselection parameter of the system side sending system message, the following situation occurs: the current serving cell has good signal quality, but the pilot exists. According to the prior art, the UE may be dropped by a Wideband Code Division Multiple Access (WCDMA) cell (referred to as W) to a Global System for Mobile Communications (GSM) cell.
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • G due to a certain factor, the signal quality of the current serving cell is only a bad situation in a short period of time, but according to the prior art, in the case of unreasonable network parameter configuration, the UE will still Such a short signal quality is not good and switches to the neighbor cell, and then after the previous serving cell signal quality returns to a good state, the UE switches back, causing a ping-pong effect between W and G, and W or G. The ping-pong effect between.
  • the embodiments of the present invention provide a cell reselection method and a mobile terminal, which are related to the frequent handover of the cell in the prior art.
  • a first aspect of the present invention provides a cell reselection method, including:
  • the terminal In the process of performing the cell reselection, if it is determined that the current serving cell is a good cell, the terminal is selected to continue to camp in the serving cell; wherein the quality cell is a cell that satisfies the judgment rule of being promoted to the quality cell.
  • the method before performing cell reselection, the method further includes:
  • the serving cell is identified as a quality cell.
  • the measurement parameter includes a camp time that has been camped on the serving cell when performing cell measurement, and a signal quality and a signal strength of the serving cell when performing cell measurement;
  • the judgment rule is:
  • the determining rule is in one-to-one correspondence with the cell system; wherein:
  • the determining rule corresponding to the WCDMA cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a quality cell
  • t is the dwell time
  • Q qualstd is the reference value of the signal-to-noise ratio Ec/No
  • Q qualmeas is the actual measured value of Ec/No
  • Q rscpstd is the pilot channel signal strength RSCP Reference value
  • Q rscpmeas is the actual measured value of RSCP
  • Q qualmax and Q rscpmax are preset maximum values, respectively, and Q max ⁇ 1.
  • the determining rule corresponding to the GSM cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a good cell
  • t is the dwell time
  • Q rxlevstd is the reference value of the received signal strength RSSI
  • Q rxlevmeas is the actual measured value of RSSI
  • SNR std is the reference value of the signal to noise ratio
  • SNR meas is Actual measured value of signal to noise ratio
  • Q rxlevmax and SNR max are preset maximum values, respectively, and Q max ⁇ 1.
  • the method further includes:
  • the corresponding camping conditions include:
  • Q qualmeas corresponding to the neighbor cell signal to noise ratio Ec / No of the actually measured value Q rscpmeas is a neighboring cell corresponding to the actually measured value of the pilot channel signal strength of RSCP, Q qualmin, Q rscpmin respectively as The minimum preset access value of the quality cell; t min means that at least the duration of Q qualmeas > Q qualmin and Q rscpmeas > Q rscpmin is satisfied .
  • the corresponding camping conditions include:
  • Q rxlevmeas is the actual measured value of the received signal strength RSSI corresponding to the neighbor cell
  • Q rxlevmin is the minimum preset access value as the quality cell
  • t min represents the minimum duration of satisfying Q rxlevmeas >Q rxlevmin .
  • the identifying the target cell as a quality cell includes:
  • the database is divided into multiple partitions according to the cell system, and the cell identifier of the target cell is stored in the partition of the corresponding system.
  • a second aspect of the present invention provides a mobile terminal, including:
  • a determining module configured to determine, in a process of performing cell reselection, whether the current serving cell is a high quality cell
  • the processing module is configured to continue to camp in the serving cell if it is determined that the current serving cell is a good cell, where the high-quality cell is a cell that satisfies a judgment rule for promotion to a good cell.
  • the method further includes:
  • a measurement module configured to perform cell measurement on the serving cell, to obtain measurement parameters
  • an identifier module configured to identify the serving cell as a quality cell if it is determined according to the measurement parameter that the serving cell satisfies the determining rule.
  • the measurement parameter includes a camp time that has been camped on the serving cell when performing cell measurement, and signal quality and signal strength of the serving cell when performing cell measurement
  • the judgment rule is:
  • the determination rule is the same as the above-described determination rule.
  • the processing module is further configured to:
  • the corresponding camping conditions include:
  • Q qualmeas corresponding to the neighbor cell signal to noise ratio Ec / No of the actually measured value Q rscpmeas is a neighboring cell corresponding to the actually measured value of the pilot channel signal strength of RSCP, Q qualmin, Q rscpmin respectively as The minimum preset access value of the quality cell; t min means that at least the duration of Q qualmeas > Q qualmin and Q rscpmeas > Q rscpmin is satisfied .
  • the corresponding camping conditions include:
  • Q rxlevmeas is the actual measured value of the received signal strength RSSI corresponding to the neighbor cell
  • Q rxlevmin is the minimum preset access value as the quality cell
  • t min represents the minimum duration of satisfying Q rxlevmeas >Q rxlevmin .
  • the method further includes:
  • the database is divided into a plurality of partitions according to a cell system for storing a cell identifier as a quality cell.
  • the cell reselection method and the mobile terminal provided by the embodiment of the present invention manage the cell that meets the promotion criteria of the high-quality cell as the quality cell, and in the process of cell reselection, if the current serving cell belongs to the high-quality cell In the case, by selecting a processing mode that continues to reside in the current serving cell, frequent frequent handover between cells is improved, service quality is improved, and power consumption of the mobile terminal is reduced.
  • FIG. 1 is a flowchart of an embodiment of a cell reselection method according to the present invention
  • FIG. 3 is a flowchart of another embodiment of a cell reselection method according to the present invention.
  • FIG. 4 is a schematic diagram of updating a high quality cell database according to the present invention.
  • FIG. 5 is a schematic structural diagram of an embodiment of a mobile terminal according to the present invention.
  • FIG. 6 is a schematic structural diagram of another embodiment of a mobile terminal according to the present invention.
  • the UE may generate frequent inter-cell handovers.
  • frequent handovers increase the power consumption of the UE and reduce battery life.
  • frequent handovers may also occur. This causes the UE to lose part of the paging, which also has a certain impact on the user experience. Considering that for most users, most of them are usually fixed in several locations. When the user appears in the location, in order to be able to preferentially reside the user's mobile terminal in the letter. In a relatively good cell, and the unnecessary switching is not performed in the case where the signal quality difference is not large, the embodiments of the present invention provide a solution for measuring the camped cell to determine whether it satisfies the quality cell.
  • the condition, if it is satisfied, is identified as a quality cell.
  • the cell reselection needs to be triggered according to the selection/reselection parameter sent by the network side, the cell reselection can be continued to be camped in the high-quality cell without performing cell handover, thereby avoiding the cell. Frequent switching.
  • FIG. 1 is a flowchart of a method for cell reselection according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 100 In the process of performing cell reselection, determining whether the current serving cell is a high quality cell
  • Step 101 If it is determined that the current serving cell is a high-quality cell, then selecting to continue to camp in the serving cell; wherein the high-quality cell is a cell that satisfies a judgment rule for promotion to a good cell.
  • the mobile terminal when it needs to trigger the cell reselection according to the selection/reselection parameter sent by the network side, it may first determine whether the current serving cell is a high quality cell according to a locally stored quality cell list.
  • the high-quality cell list includes the description information of all the cells that are identified as the high-quality cell, for example, the cell identifier, etc., of course, the embodiment of the present invention is not limited to the high-quality cell list, and other storage modes are applicable.
  • the high-quality cell may specifically be a cell that satisfies the judgment rule of being promoted to a high-quality cell. When it is known that a cell satisfies the judgment rule of being promoted to a high-quality cell, the cell may be identified as a high-quality cell.
  • the mobile terminal learns that the current serving cell is a good cell according to the high-quality cell list, and then continues to select to camp in the high-quality cell without performing cell handover, thereby avoiding frequent cell handover.
  • FIG. 2 is a flowchart of still another embodiment of a cell reselection method according to the present invention. As shown in FIG. 2, the method includes:
  • Step 200 Perform cell measurement on the serving cell to obtain measurement parameters.
  • the mobile terminal performs the cell measurement to obtain the measurement parameter of the cell, and the cell measurement can be performed according to the processing flow of the prior art, and details are not described herein again.
  • Step 201 If it is determined according to the measurement parameter that the serving cell satisfies a judgment rule for promotion to a quality cell, the serving cell is identified as a quality cell;
  • the mobile terminal After obtaining the measurement parameters of a certain target cell, for example, the current serving cell, the mobile terminal determines whether the serving cell can be promoted to a high-quality cell according to a preset determination rule, and if it is determined by the judgment that the service cell satisfies the promotion to the quality Judgment of the community Then, the serving cell is identified as a high-quality cell.
  • a plurality of different manners may be used for the identification, which is not limited herein.
  • the measurement parameter includes a camping time that has been camped on the serving cell when performing cell measurement, and a signal quality and a signal strength of the serving cell when performing cell measurement;
  • the determining rule is: acquiring a reference value corresponding to the serving cell according to the dwell time, signal quality, and signal strength, and corresponding weights, and determining whether the reference value reaches a predetermined value.
  • Step 202 In the process of performing cell reselection, if it is determined that the current serving cell is a good cell, the terminal continues to camp in the serving cell.
  • the mobile terminal After the cell to which the mobile terminal belongs to the cell to which the frequently occurring location performs the above-mentioned cell measurement and whether it is a high-quality cell, the mobile terminal can belong to the range of the high-quality cell. When the mobile terminal comes within the range covered by the cell again, it may be preferentially selected to reside in the high quality cell by some rule.
  • the measurement parameter of the neighbor cell in the process of triggering cell reselection according to the network parameter sent by the network side, the measurement parameter of the neighbor cell may be better than the measurement parameter of the current serving cell, but the difference is not large.
  • the cell reselection method and the mobile terminal provided by the embodiment of the present invention determine, according to the relevant measurement parameters of the camped cell, whether it satisfies the judgment rule as a quality cell, and if it is satisfied, manages it as a quality cell, and performs cell reselection. In the process, if the current serving cell belongs to the quality cell, the method of continuing to stay in the current serving cell is selected, the frequent switching between cells is reduced, the service quality is improved, and the power consumption of the mobile terminal is reduced.
  • FIG. 3 is a flowchart of another embodiment of a cell reselection method according to the present invention.
  • a cell includes a GSM cell and a CDMA cell, as shown in FIG. 3, and includes:
  • Step 300 The UE resides in a current serving cell.
  • Step 301 The UE performs cell measurement.
  • the UE may perform cell measurement on the current serving cell and the neighboring cell, and obtain respective measurement parameters of the serving cell and the neighboring cell, where the measurement parameter includes that the service continues to reside in the service when performing cell measurement.
  • Step 302 determining whether the current serving cell is a GSM cell; if yes, executing step 303; if not, executing step 304;
  • Step 303 Calculate a reference value Q ex value of the serving cell; here, calculate a Q ex value of the GSM cell.
  • Step 305 it is determined whether the serving cell can be promoted to a quality cell; if possible, the operation of updating the high-quality cell database in step 316 is performed, and step 307 is continued; if not, step 307 is directly performed;
  • the determination rule for determining whether a cell can be promoted to a high-quality cell is in one-to-one correspondence with the cell system, that is, the judgment rules corresponding to the cells of different standards may be different from each other, and the judgment rule corresponding to the GSM cell is:
  • the reference value Q ex reaches the predetermined value Q max , it is promoted to a quality cell:
  • T std is the reference duration for promotion to a good cell, where t is the duration of the current cell, and a larger t indicates that the longer the camp is in the current cell,
  • Q rxlevstd is the reference value of the received signal strength RSSI in GSM.
  • Q rxlevmeas is the actual measured value of the RSSI measured by the mobile phone radio.
  • SNR std is the reference value of the SNR of the cell in GSM
  • SNR meas is the actual measured value of the current cell SNR.
  • Q rxlevmax and SNR max are preset maximum values, respectively, and Q max ⁇ 1.
  • Step 307 Sort the area according to the signal strength
  • the neighboring area refers to the neighboring cell corresponding to the current serving cell.
  • the purpose of sorting each neighboring cell in this step is to prepare for the normal cell reselection process.
  • Step 309 it is determined whether the current serving cell is a good quality cell, and if so, step 301 is performed, and the continuation is performed in the current serving cell and the cell measurement is performed; if not, step 311 is performed;
  • the UE When the UE triggers the cell reselection process according to the network parameters sent by the network side, in the embodiment of the present invention, it is first required to determine whether the current serving cell belongs to the high quality cell, and perform different operations according to the judgment result.
  • Step 311 it is determined whether the area is a quality cell, and if so, step 313 is performed, if not, step 317 is performed;
  • the current serving cell does not belong to the high-quality cell, it is determined according to the database of the high-quality cell whether there is a high-quality cell in the temporary area, and the following may be performed according to the order in step 307, for example, it is determined whether the preceding temporary area belongs to the high-quality cell.
  • Step 313 it is determined whether the temporary area meets the resident condition of the high-quality cell, if yes, step 315 is performed; if not, step 317 is performed;
  • the selected temporary area may be a GSM cell or a WCDMA cell, and the camping conditions corresponding to different standard cells may also be different.
  • Step 315 The UE switches to the high quality cell, and the process ends.
  • Step 317 Perform a normal cell reselection process, and the process ends.
  • the method further includes:
  • Step 304 the calculated value of Q ex serving cell; here, the calculated value Q ex WCDMA cell.
  • Step 306 it is determined whether the serving cell can be promoted to a high-quality cell; if yes, the operation of updating the high-quality cell database in step 316 is performed, and step 308 is continued; if not, step 308 is directly performed;
  • the judging rule corresponding to the WCDMA cell is: when the reference value Q ex reaches the predetermined value Q max , the promotion is a high-quality cell:
  • T std is the reference duration for promotion to a good cell, where t is the duration of the current cell, and a larger t indicates that the longer the camp is in the current cell,
  • Q qualstd is the reference value of signal quality such as signal-to-noise ratio Ec/No in WCDMA.
  • Q qualmeas is the actual measured value of Ec/No measured by mobile phone radio.
  • Q rscpstd is the reference value of the pilot channel signal strength RSCP in WCDMA
  • Q rscpmeas is the actual measured value of RSCP measured by the mobile phone radio
  • the larger the Q rscpmeas in the current camping cell The greater the weight, the greater the proportion of promotion to a quality community, the maximum of which is
  • the pilot channel signal strength received by the mobile phone can be understood as an indication of the frequency channel of the RSCP (Receive Signal Channel Power).
  • Q qualmax and Q rscpmax are preset maximum values, respectively, and Q max ⁇ 1.
  • Step 308 Sort the area according to the signal strength
  • This step is the same as step 307 and will not be described here.
  • Step 310 Determine whether the current serving cell is a good cell, and if yes, perform step 301, select to continue to camp in the current serving cell and perform cell measurement; if not, execute step 312;
  • the UE When the UE triggers the cell reselection process according to the network parameters sent by the network side, in the embodiment of the present invention, it is first required to determine whether the current serving cell belongs to the high quality cell, and perform different operations according to the judgment result.
  • Step 312 it is determined whether the temporary area is a quality cell, and if so, step 314 is performed, if not, step 317 is performed;
  • the continuation is determined according to the database of the high-quality cell. Whether there is a quality cell in the fault zone, the sequence can be performed according to the sequence in step 308, for example, it is determined whether the front zone in the front zone belongs to the quality cell.
  • Step 314 Determine whether the temporary area satisfies the parking condition of the high-quality cell. If yes, go to step 315; if not, go to step 317.
  • the judging rules corresponding to the different types of cells for judging whether the promotion is a high-quality cell are different, and may of course be the same, for example, only the dwell time is considered.
  • the judging rule given in the embodiment of the method of the present invention includes parameters such as dwell time, signal strength, signal quality/signal-to-noise ratio, and the like, and may also be used for parameters not mentioned in other embodiments according to actual requirements. In the judgment, one or a combination of the above parameters may also be selected for the judgment, and the present invention does not specifically limit the judgment rule.
  • the reference values of the parameters involved in the various embodiments of the present invention may be used as a reference for experience by statistical results over a period of time.
  • the camping condition may be in one-to-one correspondence with the cell system, and the same camping condition may be adopted, which is not limited.
  • the following describes in detail the different camping conditions for GSM and WCDMA cells.
  • the process of performing cell reselection if it is determined that the current serving cell is not a good cell, it is determined whether there is a good cell in the neighbor cell, and if yes, the neighbor is determined as the quality cell. Whether the cell satisfies the camping condition, and if yes, switches to the neighbor cell that is a good cell;
  • the corresponding camping conditions include:
  • Q qualmeas corresponding to the neighbor cell signal to noise ratio Ec / No of the actually measured value Q rscpmeas is a neighboring cell corresponding to the actually measured value of the pilot channel signal strength of RSCP, Q qualmin, Q rscpmin respectively as The minimum preset access value of the quality cell; t min means that at least the duration of Q qualmeas > Q qualmin and Q rscpmeas > Q rscpmin is satisfied .
  • the corresponding camping conditions include:
  • Q rxlevmeas is the actual measured value of the received signal strength RSSI corresponding to the neighbor cell
  • Q rxlevmin is the minimum preset access value as the quality cell
  • t min represents the minimum duration of satisfying Q rxlevmeas >Q rxlevmin .
  • the operation of updating the high-quality cell database performed in step 316 can be specifically performed by referring to the process shown in FIG. 4.
  • the database may be divided into multiple partitions according to the cell system, and the cell identifier that is the high quality cell is stored in the partition of the corresponding standard.
  • Each system can store up to M cells.
  • the attributes of the cell include information such as a standard (RAT), a frequency point, a primary scrambling code, a PLMN, a CellID, and a Lac. As shown in the following table:
  • the cell information is read from the database for use in selecting a good cell.
  • the quality community is stored in a queue, first in, first out.
  • a normal cell changed to a high-quality cell and needs to be stored in the database
  • the database if the database is not full, it will be directly deposited; otherwise, the "oldest" same-standard cell that is first placed in the table needs to be released, and then stored. .
  • step 302 step 303, step 305 (step 304 and step 306 are similar) and step 316 after cell measurement in step 301 as shown in the figure may be After being camped on the current serving cell for the first time, it is executed once, and the subsequent process may not perform the process of determining whether the current serving cell can be promoted to a high-quality cell, but directly determine whether the current serving cell mobile phone is a high-quality cell according to the database. This can reduce the power consumption of the mobile terminal. Of course, the process of determining whether the current serving cell can be promoted to a high-quality cell can be performed each time.
  • the cell selection based on the memory function can enable the UE to stay in the high-quality cell that normally stays in the long-term, and reduce frequent switching between cells. To achieve terminal power consumption, high signal quality and call rate, and good user experience.
  • FIG. 5 is a schematic structural diagram of an embodiment of a mobile terminal according to the present invention.
  • the mobile terminal may include a determining module 51 and a processing module 52, where the determining module 51 is configured to determine the current in the process of performing cell reselection. Whether the serving cell is a high-quality cell; the processing module 52 is configured to continue to camp in the serving cell if it is determined that the current serving cell is a high-quality cell; wherein the quality cell is a judging rule for satisfying promotion to a high-quality cell Community.
  • the determining module 51 may first determine whether the current serving cell is a high quality cell according to a locally stored quality cell list.
  • the high-quality cell list includes the description information of all the cells that are identified as the high-quality cell, for example, the cell identifier, etc., of course, the embodiment of the present invention is not limited to the high-quality cell list, and other storage modes are applicable.
  • the high-quality cell may specifically be a cell that satisfies the judgment rule of being promoted to a high-quality cell.
  • the cell When it is known that a cell satisfies the judgment rule of being promoted to a high-quality cell, the cell may be identified as a high-quality cell.
  • the determining module 51 determines that the current serving cell is a good cell according to the high-quality cell list, and then continues to select to camp in the high-quality cell by the processing module 52 without performing cell switching, thereby avoiding frequent cell handover.
  • the mobile terminal may further include a measurement module and a presentation module, where the measurement module is configured to perform cell measurement on the serving cell to obtain measurement parameters, and the identifier module is configured to determine, according to the measurement parameter, And the serving cell satisfies the determining rule, and identifies the serving cell as a quality cell.
  • the measurement module is configured to perform cell measurement on the serving cell to obtain measurement parameters
  • the identifier module is configured to determine, according to the measurement parameter, And the serving cell satisfies the determining rule, and identifies the serving cell as a quality cell.
  • the measurement parameter includes a camp time that has been camped on the serving cell when performing cell measurement, and a signal quality and a signal strength of the serving cell when performing cell measurement; correspondingly, the determining The rule is: acquiring a reference value corresponding to the serving cell according to the dwell time, signal quality, and signal strength, and corresponding weights, and determining whether the reference value reaches a predetermined value.
  • the determining rule is in one-to-one correspondence with the cell system; wherein:
  • the determining rule corresponding to the WCDMA cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a quality cell
  • t is the dwell time
  • Q qualstd is the reference value of the signal-to-noise ratio Ec/No
  • Q qualmeas is the actual measured value of Ec/No
  • Q rscpstd is the pilot channel signal strength RSCP Reference value
  • Q rscpmeas is the actual measured value of RSCP
  • Q qualmax and Q rscpmax are preset maximum values, respectively, and Q max ⁇ 1.
  • the judging rule corresponding to the GSM cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a good cell
  • t is the dwell time
  • Q rxlevstd is the reference value of the received signal strength RSSI
  • Q rxlevmeas is the actual measured value of RSSI
  • SNR std is the reference value of the signal to noise ratio
  • SNR meas is Actual measured value of signal to noise ratio
  • Q rxlevmax and SNR max are respectively preset maximum values, and Q max ⁇ 1.
  • the processing module 52 is further configured to: if it is determined that the current serving cell is not a good cell, in the process of performing cell reselection, proceed to determine whether there is a quality cell in the neighbor cell, and if yes, determine to be a quality cell. Whether the neighboring cell satisfies a camping condition, and if so, switches to the neighboring cell that is a good quality cell;
  • the corresponding camping conditions include:
  • Q qualmeas corresponding to the neighbor cell signal to noise ratio Ec / No of the actually measured value Q rscpmeas is a neighboring cell corresponding to the actually measured value of the pilot channel signal strength of RSCP, Q qualmin, Q rscpmin respectively as The minimum preset access value of the quality cell; t min means that at least the duration of Q qualmeas > Q qualmin and Q rscpmeas > Q rscpmin is satisfied .
  • the corresponding camping conditions include:
  • Q rxlevmeas is the actual measured value of the received signal strength RSSI corresponding to the neighbor cell
  • Q rxlevmin is the minimum preset access value as the quality cell
  • t min represents the minimum duration of satisfying Q rxlevmeas >Q rxlevmin .
  • the mobile terminal may further include a database, where the database is divided into multiple partitions according to a cell system, and is used to store a cell identifier as a quality cell.
  • the mobile terminal provided by the embodiment of the present invention is specifically used to perform the processing flow provided by the foregoing method embodiments, and details are not described herein again.
  • the mobile terminal determines whether it satisfies the judgment rule of the quality cell according to the relevant measurement parameter of the camped cell, and if it is satisfied, manages it as a quality cell, and in the process of cell reselection, if In the case that the current serving cell belongs to the high-quality cell, by selecting the processing mode that continues to camp on the current serving cell, the frequent handover between cells is reduced, the service quality is improved, and the power consumption of the mobile terminal is reduced.
  • FIG. 6 is a schematic structural diagram of another embodiment of a mobile terminal according to the present invention.
  • the mobile terminal includes a transmitter 61, a receiver 62, a bus 63, a memory 64, and a processor 65.
  • the memory 64 is configured to store instructions and process
  • the device 65 reads the instruction and performs the following operations:
  • the terminal In the process of performing the cell reselection, if it is determined that the current serving cell is a good cell, the terminal is selected to continue to camp in the serving cell; wherein the quality cell is a cell that satisfies the judgment rule of being promoted to the quality cell.
  • the mobile terminal performs basic functions of communicating with the outside through the transmitter 61 and the receiver 62.
  • the receiver 62 can receive the selection/reselection parameters and the like sent by the network side.
  • the memory 64 can be used to store a list of high-quality cells, including description information of all the cells that are identified as high-quality cells, such as a cell identifier, etc.
  • the embodiment of the present invention is not limited to a high-quality cell list, and other storage modes are available.
  • the processor 65 is further configured to perform cell measurement on the serving cell to obtain a measurement parameter. If it is determined according to the measurement parameter that the serving cell satisfies the determination rule, the serving cell is identified as a quality cell.
  • the measurement parameters include that the service has been continuously resident in the service when performing cell measurement.
  • the camping time of the cell, and the signal quality and signal strength of the serving cell when performing cell measurement; correspondingly, the determining rule is:
  • the determining rule has a one-to-one correspondence with the cell system; wherein:
  • the determining rule corresponding to the WCDMA cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a quality cell
  • t is the dwell time
  • Q qualstd is the reference value of the signal-to-noise ratio Ec/No
  • Q qualmeas is the actual measured value of Ec/No
  • Q rscpstd is the pilot channel signal strength RSCP Reference value
  • Q rscpmeas is the actual measured value of RSCP
  • Q qualmax and Q rscpmax are preset maximum values, respectively, and Q max ⁇ 1.
  • the determining rule corresponding to the GSM cell is that the reference value Q ex reaches a predetermined value Q max , where:
  • T std is the reference duration for promotion to a good cell
  • t is the dwell time
  • Q rxlevstd is the reference value of the received signal strength RSSI
  • Q rxlevmeas is the actual measured value of RSSI
  • SNR std is the reference value of the signal to noise ratio
  • SNR meas is Actual measured value of signal to noise ratio
  • Q rxlevmax and SNR max are preset maximum values, respectively, and Q max ⁇ 1.
  • the processor 65 is further configured to: if it is determined that the current serving cell is not a good cell, in the process of performing cell reselection, proceed to determine whether there is a quality cell in the neighbor cell, and if yes, determine the quality cell Whether the neighboring cell satisfies the camping condition, and if yes, switches to the neighboring cell that is a good cell;
  • the corresponding camping conditions include:
  • Q qualmeas corresponding to the neighbor cell signal to noise ratio Ec / No of the actually measured value Q rscpmeas is a neighboring cell corresponding to the actually measured value of the pilot channel signal strength of RSCP, Q qualmin, Q rscpmin respectively as The minimum preset access value of the quality cell; t min means that at least the duration of Q qualmeas > Q qualmin and Q rscpmeas > Q rscpmin is satisfied .
  • the processor 65 is further configured to: if it is determined that the current serving cell is not a good cell, in the process of performing cell reselection, proceed to determine whether there is a quality cell in the neighbor cell, and if yes, determine the quality cell Whether the neighboring cell satisfies the camping condition, and if yes, switches to the neighboring cell that is a good cell;
  • the corresponding camping conditions include:
  • Q rxlevmeas is the actual measured value of the received signal strength RSSI corresponding to the neighbor cell
  • Q rxlevmin is the minimum preset access value as the quality cell
  • t min represents the minimum duration of satisfying Q rxlevmeas >Q rxlevmin .
  • the memory 64 also stores a database, the database is divided into a plurality of partitions according to a cell system, and the cell identifier of the target cell is stored in a partition of a corresponding system.
  • the mobile terminal provided by the embodiment of the present invention manages the cell that meets the promotion criteria of the high-quality cell as the quality cell, and in the process of cell reselection, if the current serving cell belongs to the high-quality cell, the selection is made.
  • the processing mode of the current serving cell continues to be reduced, the frequent handover between cells is reduced, the service quality of the service is improved, and the power consumption of the mobile terminal is reduced.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be set Into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提供一种小区重选方法和移动终端。该方法包括在进行小区重选的过程中，若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区（101）。本发明实施例通过将符合晋升为优质小区判断规则的小区作为优质小区进行管理，并在发生小区重选的过程中，若出现当前的服务小区属于优质小区的情况，通过选择继续驻留在当前的服务小区的处理方式，减少小区之间的频繁切换，提高业务服务质量，并降低移动终端功耗。

Description

小区重选方法和移动终端 技术领域
本发明实施例涉及无线通信技术，尤其涉及一种小区重选方法和移动终端。
背景技术
为了使用户享受较好服务，需要保证移动终端(User Equipment；简称：UE)驻留于质量较好的小区。现有技术中严格遵循第三代合作伙伴计划(3rd Generation Partnership Project；简称：3GPP)标准协议规范；UE驻留在某一制式的小区时，实时监测周围临区状况，并根据网络侧下发系统消息的选择/重选参数来自行决定是否进行小区选择/重选，以及异系统之间的切换。当UE测量获知当前所驻留的服务小区的信号质量不好，而邻居小区的信号质量比较好时，需要根据上述参数从当前的服务器小区切换到邻居小区中，以保证UE始终驻留在质量相对好的小区中。
但是现有技术中，由于UE是根据网络侧下发系统消息的选择/重选参数来自行决定是否进行小区切换，因此会出现以下情况：当前的服务小区的信号质量较好，但是存在导频污染，按照现有技术UE可能会由宽频码分多址(Wide band Code Division Multiple Access；简称：WCDMA)小区(简称W)降落至全球移动通信系统(Global System for Mobile Communications；简称：GSM)小区(简称G)；还有因受某种因素的影响，当前服务小区的信号质量只是短时间内出现不好的情况，但是按照现有技术在网络参数配置不合理的情况下，UE仍然会因为这样短暂的信号质量不好而切换至邻居小区，而后又在之前的服务小区信号质量恢复到较好的状态后，UE又切换回来，造成W与G之间的乒乓效应，以及W或者G之间的乒乓效应。
发明内容
针对现有技术中存在的小区切换频繁的缺陷，本发明实施例提供一种小区重选方法和移动终端。
本发明第一方面提供一种小区重选方法，包括：
在进行小区重选的过程中，若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
在第一方面提供的方法中，在进行小区重选之前，所述方法还包括：
对所述服务小区进行小区测量，获得测量参数；
若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
在第一方面提供的方法中，所述测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：
根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
在第一方面提供的方法中，所述判断规则与小区制式一一对应；其中：
所述WCDMA小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000001
其中，其中
Figure PCTCN2015077221-appb-000002
为驻留时间、信号质量、信号强度分别所占的权重，满足
Figure PCTCN2015077221-appb-000003
并且
Figure PCTCN2015077221-appb-000004
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qqualstd为信噪比Ec/No的参考值，Qqualmeas为Ec/No的实际测量值；Qrscpstd为导频信道信号强度RSCP的参考值，Qrscpmeas为RSCP的实际测量值；
Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
另外，所述GSM小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000005
其中，
Figure PCTCN2015077221-appb-000006
为驻留时间、信号强度、信噪比分别所占的权重，满足
Figure PCTCN2015077221-appb-000007
并且
Figure PCTCN2015077221-appb-000008
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qrxlevstd为接收信号强度RSSI的参考值，Qrxlevmeas为RSSI的实际测量值；SNRstd为信噪比的参考值，SNRmeas为信噪比的实际测量值；
Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
在第一方面提供的方法中，还包括：
在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
若所述邻居小区为GSM小区，则对应的驻留条件包括：
Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
在第一方面提供的方法中，所述将所述目标小区标识为优质小区包括：
将数据库按照小区制式分为多个分区，所述目标小区的小区标识存储在对应制式的分区中。
本发明第二方面提供一种移动终端，包括：
判断模块，用于在进行小区重选的过程中，判断当前的服务小区是否为优质小区；
处理模块，用于若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
在第二方面提供的移动终端中，还包括：
测量模块，用于对所述服务小区进行小区测量，获得测量参数；
标识模块，用于若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
在第二方面提供的移动终端中，所述测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：
根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
在第二方面提供的移动终端中，判断规则与上述的判断规则相同。
在第二方面提供的移动终端中，所述处理模块还用于：
在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足 Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
以及，若所述邻居小区为GSM小区，则对应的驻留条件包括：
Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
在第二方面提供的移动终端中，还包括：
数据库，所述数据库按照小区制式分为多个分区，用于存储作为优质小区的小区标识。
本发明实施例提供的小区重选方法和移动终端，通过将符合晋升为优质小区判断规则的小区作为优质小区进行管理，并在发生小区重选的过程中，若出现当前的服务小区属于优质小区的情况，通过选择继续驻留在当前的服务小区的处理方式，减少小区之间的频繁切换，提高业务服务质量，并降低移动终端功耗。
附图说明
图1为本发明小区重选方法一实施例流程图；
图2本发明小区重选方法再一实施例流程图
图3为本发明小区重选方法另一实施例流程图；
图4为本发明优质小区数据库更新示意图；
图5为本发明移动终端实施例组成示意图；
图6为本发明另一移动终端实施例组成示意图。
具体实施方式
由于当UE驻留区域存在多个强度相差不大的小区时，可能会导致UE产生频繁的小区间切换，一方面频繁切换使UE的功耗增加，降低电池寿命，另一方面频繁切换也会导致UE丢失部分寻呼，对用户体验也有一定影响。考虑到对于大多数用户而言，一般多数是固定在几个地点出现，当用户出现在该地点时，为了能够将用户的移动终端优先驻留在信 号比较好的小区中，且在信号质量差别不大的情况下不进行不必要的切换，本发明各实施例提供一种解决方案即对所驻留的小区进行测量，判断其是否满足优质小区的条件，若满足则将其标识为优质小区。当移动终端驻留在一个优质小区后，若根据网络侧下发的选择/重选参数需要触发小区重选时，能够继续选择驻留在该优质小区中，而不进行小区切换，从而避免小区的频繁切换。
图1为本发明小区重选方法一实施例流程图，如图1所示，包括：
步骤100、在进行小区重选的过程中，判断当前的服务小区是否为优质小区；
步骤101、若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
具体地，当移动终端在根据网络侧下发的选择/重选参数需要触发小区重选时，首先可以根据本地存储的一个优质小区列表判断一下当前的服务小区是否为优质小区。所述的优质小区列表中包括所有被标识为优质小区的小区的描述信息，例如小区标识等，当然本发明实施例并不局限于优质小区列表，其他存储方式均可以。所述的优质小区具体可以为满足晋升为优质小区的判断规则的小区，当获知一个小区满足晋升为优质小区的判断规则时，可以将该小区标识为优质小区。移动终端根据优质小区列表判断获知当前的服务小区为优质小区，则继续选择驻留在该优质小区中，而不进行小区切换，从而避免小区的频繁切换。
图2为本发明小区重选方法再一实施例流程图，如图2所示，包括：
步骤200、对服务小区进行小区测量，获得测量参数；
移动终端进行小区测量获得小区的测量参数，进行小区测量可以按照现有技术的处理流程执行么，此处不再赘述。
步骤201、若根据所述测量参数判断获知所述服务小区满足晋升为优质小区的判断规则，则将所述服务小区标识为优质小区；
移动终端在获得某一个目标小区例如当前的服务小区的测量参数后，根据预先设定的判断规则对该服务小区进行是否能够晋升为优质小区的判断，若通过判断获知该服务小区满足晋升为优质小区的判断规 则，则将该服务小区标识为优质小区，本发明实施例中只要能够识别出一个小区是否为优质小区即可，至于如何标识可以采用多种不同的方式，此处并不做限定。
本方法实施例中，所述的测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
步骤202、在进行小区重选的过程中，若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中。
移动终端在经常出现的几个地点所属于的小区进行上述小区测量和是否为优质小区的判断后，便可以将信号质量比较好的小区归属到优质小区的范围内。当该移动终端再次来到该小区所覆盖的范围内时，可以通过某种规则优先选择驻留在该优质小区内。并且本发明实施例中在移动终端根据网络侧下发的网络参数而触发小区重选的过程中，可以在例如邻居小区的测量参数比当前的服务小区的测量参数好，但是差别并不大的情况下，可以不按照现有技术的处理方式切换到邻居小区中，而是首先查验当前的服务小区是否属于优质小区，若属于，则不切换到邻居小区，而是选择继续驻留在当前的服务小区中，避免小区之间的频繁切换。
本发明实施例提供的小区重选方法和移动终端，根据驻留小区的相关测量参数判断其是否满足作为优质小区的判断规则，若满足则将其作为优质小区进行管理，并在发生小区重选的过程中，若出现当前的服务小区属于优质小区的情况，通过选择继续驻留在当前的服务小区的处理方式，减少小区之间的频繁切换，提高业务服务质量，并降低移动终端功耗。
图3为本发明小区重选方法另一实施例流程图，本实施例以小区包括GSM小区和CDMA小区为例，如图3所示，包括：
步骤300、UE驻留在当前的服务小区；
步骤301、UE执行小区测量；
本发明实施例中UE可以对当前的服务小区以及邻居小区均进行小区测量，获得服务小区以及邻居小区各自的测量参数，所述的测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度。
步骤302、判断当前的服务小区是否是GSM小区；若是，则执行步骤303；若否，则执行步骤304；
步骤303、计算服务小区的参考值Qex值；此处为计算GSM小区的Qex值。
步骤305、判断服务小区是否能够晋升为优质小区；若可以，则执行步骤316的更新优质小区数据库的操作，继续执行步骤307；若不可以，则直接执行步骤307；
本发明实施例中，用于判断一个小区是否可以晋升为优质小区的判断规则与小区制式一一对应，即不同制式的小区对应的判断规则可以互不相同，对于GSM小区对应的判断规则为：参考值Qex达到预定值Qmax时，晋升为优质小区：
Figure PCTCN2015077221-appb-000009
其中，
Figure PCTCN2015077221-appb-000010
为驻留时间、信号强度、信噪比分别所占的权重，满足
Figure PCTCN2015077221-appb-000011
并且
Figure PCTCN2015077221-appb-000012
Tstd为晋升为优质小区的参考时长，t为驻留在当前小区的时长，t越大表示驻留在当前小区的时间越长，
Figure PCTCN2015077221-appb-000013
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000014
Qrxlevstd为GSM中接收信号强度RSSI的参考值，Qrxlevmeas为手机射频测量出来的RSSI的实际测量值，当前小区的Qrxlevmeas越大，
Figure PCTCN2015077221-appb-000015
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000016
RSSI可以指手机在所在的载频上接收到的全部功率，包括有用信号(当然，其中包含导频信号)，本小区内其他用户的干扰、邻区干扰、背景噪声、系统外干扰等。
SNRstd为GSM中小区的信噪比的参考值，SNRmeas为当前小区信噪比的实际测量值，在当前驻留小区的SNRmeas越大，
Figure PCTCN2015077221-appb-000017
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000018
Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
步骤307、将临区按照信号强度进行排序；
所述的临区指的就是当前服务小区对应的邻居小区，本步骤中对各邻居小区进行排序目的是为了后续进行正常的小区重选流程做准备。
步骤309、判断当前的服务小区是否为优质小区，若是，则执行步骤301，选择继续驻留在当前的服务小区中并进行小区测量；若不是，则执行步骤311；
UE若根据网络侧发送的网络参数而触发小区重选流程时，本发明实施例中首先需要判断一下当前服务小区是否属于优质小区，根据判断结果进行不同的操作。
步骤311、判断临区是否为优质小区，若是，则执行步骤313，若不是，则执行步骤317；
若当前服务小区不属于优质小区，则根据优质小区的数据库继续判断临区中是否有优质小区，此处可以按照步骤307中的排序进行，例如优先判断排在前面的临区是否属于优质小区。
步骤313、判断临区是否满足优质小区的驻留条件，若满足，则执行步骤315；若不满足，则执行步骤317；
其中，所选择的临区可能是GSM小区，也可能是WCDMA小区，对应不同制式小区的驻留条件也可以不同。
步骤315、UE切换至该优质小区中，流程结束。
步骤317、执行正常的小区重选流程，流程结束。
所述方法还包括：
步骤304、计算服务小区的Qex值；此处为计算WCDMA小区的Qex值。
步骤306、判断服务小区是否能够晋升为优质小区；若可以，则执行步骤316的更新优质小区数据库的操作，继续执行步骤308；若不可以，则直接执行步骤308；
本发明实施例中，对于WCDMA小区对应的判断规则为：参考值Qex达到预定值Qmax时，晋升为优质小区：
Figure PCTCN2015077221-appb-000019
其中，其中
Figure PCTCN2015077221-appb-000020
为驻留时间、信号质量、信号强度分别所占的权重，满足
Figure PCTCN2015077221-appb-000021
并且
Figure PCTCN2015077221-appb-000022
Tstd为晋升为优质小区的参考时长，t为驻留在当前小区的时长，t越大表示驻留在当前小区的时间越长，
Figure PCTCN2015077221-appb-000023
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000024
Qqualstd为WCDMA中信号质量例如信噪比Ec/No的参考值，Qqualmeas为手机射频测量出来的Ec/No的实际测量值，在当前驻留小区的Qqualmeas越大，
Figure PCTCN2015077221-appb-000025
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000026
Ec/No可以指发射端扩谱后每码道上每个码片的能量和带限白噪声功率谱密度的比，就是码片能量与干扰和噪声的比值；值越小，说明信号质量越小。
Qrscpstd为WCDMA中导频信道信号强度RSCP的参考值，Qrscpmeas为手机射频测量出来的RSCP的实际测量值，在当前驻留小区的Qrscpmeas越大，
Figure PCTCN2015077221-appb-000027
所占权重越大，晋升为优质小区的比重越大，其中最大值为
Figure PCTCN2015077221-appb-000028
RSCP(Receive Signal Channel Power)通常指导频信道，本发明实施例中可以理解为手机接收到的导频信道信号强度。
Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
步骤308、将临区按照信号强度进行排序；
此步骤与步骤307相同，此处不再赘述。
步骤310、判断当前的服务小区是否为优质小区，若是，则执行步骤301，选择继续驻留在当前的服务小区中并进行小区测量；若不是，则执行步骤312；
UE若根据网络侧发送的网络参数而触发小区重选流程时，本发明实施例中首先需要判断一下当前服务小区是否属于优质小区，根据判断结果进行不同的操作。
步骤312、判断临区是否为优质小区，若是，则执行步骤314，若不是，则执行步骤317；
若当前服务小区不属于优质小区，则根据优质小区的数据库继续判 断临区中是否有优质小区，此处可以按照步骤308中的排序进行，例如优先判断排在前面的临区是否属于优质小区。
步骤314、判断临区是否满足优质小区的驻留条件，若满足，则执行步骤315；若不满足，则执行步骤317。
在上述方法实施例中，各个不同制式小区对应的用于判断是否满足晋升为优质小区的判断规则是不同的，当然也可以相同，例如仅考虑驻留时间。
还有，本发明方法实施例给出的判断规则是包括了驻留时间、信号强度、信号质量/信噪比等参数，当然也可以根据实际需求包括其他实施例中没有提及的参数用于判断，也可以选择上述各参数中的一个或组合用于判断，本发明对判断规则不做具体限定。
本发明各实施例中涉及的各参数的参考值，可以通过在一段时间内的统计结果来作为经验的参考。
上述方法实施例中涉及的判断临区是否满足优质小区的驻留条件的步骤中，所述的驻留条件可以与小区制式一一对应，也可以采用相同的驻留条件，不做限定。以下以GSM和WCDMA小区对应不同的驻留条件来详细介绍。
上述方法实施例中，在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
若所述邻居小区为GSM小区，则对应的驻留条件包括：
Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量 值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
上述方法实施例中，步骤316所执行的更新优质小区数据库的操作具体可以参照图4所示的流程执行。本发明实施例中可以将数据库按照小区制式分为多个分区，将作为优质小区的小区标识存储在对应制式的分区中。每种制式最多可以存储M个小区。小区的属性包括制式(RAT)、频点、主扰码、PLMN、CellID、Lac等信息。如下表所示：
Serial RATARFC N PSC Cellid LacPL MN …
1 GSM 34 / … … … …
2 GSM 40 / … … … …
… … … / … … … …
M GSM 45 / … … … …
M+1 WCDMA 10713 200 … … … …
… … … … … … … …
2M WCDMA … … … … … …
当UE开机时，从数据库中读取小区信息供优质小区选择时使用。
优质小区采用队列的方式进行存储，先进先出。当存在普通小区变更为优质小区，需要存储到数据库中时，如果数据库未满，则直接存入；否则需要释放掉最早放入表中的“最旧”的同制式小区，然后再进行存入。
在上述如图3所示的方法实施例中，可以理解的，如图所示的在步骤301小区测量后的步骤302、步骤303、步骤305(步骤304和步骤306类似)和步骤316可以仅在首次驻留在当前服务小区后执行一次，而后续流程中可以不每次都执行判断当前服务小区是否可以晋升为优质小区的流程，而是直接根据数据库判断当前的服务小区手机否为优质小区，这样可以减少移动终端的功耗。当然也可以每次都执行判断当前服务小区是否可以晋升为优质小区的流程，对此本发明实施例并不做限定。
通过以上可知，在当前的服务小区和邻居小区的信号质量差别不大的情况下，基于记忆功能的小区选择可以使UE较长时间驻留平时常驻留的优质小区，减少小区间的频繁切换，达到终端省功耗，信号质量和呼通率高，用户体验好的效果。
图5为本发明移动终端实施例组成示意图，如图5所示，该移动终端可以包括判断模块51和处理模块52，其中，判断模块51用于在进行小区重选的过程中，判断当前的服务小区是否为优质小区；处理模块52用于若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
具体地，当移动终端在根据网络侧下发的选择/重选参数需要触发小区重选时，首先可以通过判断模块51根据本地存储的一个优质小区列表判断一下当前的服务小区是否为优质小区。所述的优质小区列表中包括所有被标识为优质小区的小区的描述信息，例如小区标识等，当然本发明实施例并不局限于优质小区列表，其他存储方式均可以。所述的优质小区具体可以为满足晋升为优质小区的判断规则的小区，当获知一个小区满足晋升为优质小区的判断规则时，可以将该小区标识为优质小区。判断模块51根据优质小区列表判断获知当前的服务小区为优质小区，则通过处理模块52继续选择驻留在该优质小区中，而不进行小区切换，从而避免小区的频繁切换。
在上述的装置实施例中，移动终端还可以包括测量模块和表示模块，其中，测量模块用于对所述服务小区进行小区测量，获得测量参数；标识模块用于若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
具体地，所述测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
在上述的装置实施例中，所述的判断规则与小区制式一一对应；其中：
所述WCDMA小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000029
其中，其中
Figure PCTCN2015077221-appb-000030
为驻留时间、信号质量、信号强度分别所占的权重，满足
Figure PCTCN2015077221-appb-000031
并且
Figure PCTCN2015077221-appb-000032
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qqualstd为信噪比Ec/No的参考值，Qqualmeas为Ec/No的实际测量值；Qrscpstd为导频信道信号强度RSCP的参考值，Qrscpmeas为RSCP的实际测量值；
以上，Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
所述GSM小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000033
其中，
Figure PCTCN2015077221-appb-000034
为驻留时间、信号强度、信噪比分别所占的权重，满足
Figure PCTCN2015077221-appb-000035
并且
Figure PCTCN2015077221-appb-000036
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qrxlevstd为接收信号强度RSSI的参考值，Qrxlevmeas为RSSI的实际测量值；SNRstd为信噪比的参考值，SNRmeas为信噪比的实际测量值；
以上，Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
进一步地，处理模块52还用于：在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足 Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
若所述邻居小区为GSM小区，则对应的驻留条件包括：
Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
进一步地，所述移动终端还可以包括数据库，该数据库按照小区制式分为多个分区，用于存储作为优质小区的小区标识。
本发明实施例提供的移动终端具体用于执行上述各方法实施例提供的处理流程，此处不再赘述。
本发明实施例提供的移动终端，根据驻留小区的相关测量参数判断其是否满足作为优质小区的判断规则，若满足则将其作为优质小区进行管理，并在发生小区重选的过程中，若出现当前的服务小区属于优质小区的情况，通过选择继续驻留在当前的服务小区的处理方式，减少小区之间的频繁切换，提高业务服务质量，并降低移动终端功耗。
图6为本发明另一移动终端实施例组成示意图，如图6所示，该移动终端包括发射器61、接收器62、总线63、存储器64和处理器65，存储器64用于存储指令，处理器65读取该指令并执行以下操作：
在进行小区重选的过程中，若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
其中，移动终端通过发射器61和接收器62实现与外部通信的基本功能，例如可以通过接收器62接收网络侧下发的选择/重选参数等。存储器64可以用于存储一优质小区列表，包括所有被标识为优质小区的小区的描述信息，例如小区标识等，当然本发明实施例并不局限于优质小区列表，其他存储方式均可以。
处理器65还可以用于对所述服务小区进行小区测量，获得测量参数；若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
具体地，所述测量参数包括在进行小区测量时已持续驻留在所述服 务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：
根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
所述判断规则与小区制式一一对应；其中：
所述WCDMA小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000037
其中，其中
Figure PCTCN2015077221-appb-000038
为驻留时间、信号质量、信号强度分别所占的权重，满足
Figure PCTCN2015077221-appb-000039
并且
Figure PCTCN2015077221-appb-000040
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qqualstd为信噪比Ec/No的参考值，Qqualmeas为Ec/No的实际测量值；Qrscpstd为导频信道信号强度RSCP的参考值，Qrscpmeas为RSCP的实际测量值；
Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
另外，所述GSM小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
Figure PCTCN2015077221-appb-000041
其中，
Figure PCTCN2015077221-appb-000042
为驻留时间、信号强度、信噪比分别所占的权重，满足
Figure PCTCN2015077221-appb-000043
并且
Figure PCTCN2015077221-appb-000044
Tstd为晋升为优质小区的参考时长，t为驻留时间；Qrxlevstd为接收信号强度RSSI的参考值，Qrxlevmeas为RSSI的实际测量值；SNRstd为信噪比的参考值，SNRmeas为信噪比的实际测量值；
Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
处理器65还用于，在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
处理器65还用于，在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
若所述邻居小区为GSM小区，则对应的驻留条件包括：
Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
存储器64还存储有一数据库，所述数据库按照小区制式分为多个分区，所述目标小区的小区标识存储在对应制式的分区中。
本发明实施例提供的移动终端，通过将符合晋升为优质小区判断规则的小区作为优质小区进行管理，并在发生小区重选的过程中，若出现当前的服务小区属于优质小区的情况，通过选择继续驻留在当前的服务小区的处理方式，减少小区之间的频繁切换，提高业务服务质量，并降低移动终端功耗。
在本发明所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集 成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的装置的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (16)

  1. 一种小区重选方法，其特征在于，包括：
    在进行小区重选的过程中，若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
  2. 根据权利要求1所述的方法，其特征在于，在进行小区重选之前，所述方法还包括：
    对所述服务小区进行小区测量，获得测量参数；
    若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
  3. 根据权利要求2所述的方法，其特征在于，所述测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：
    根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
  4. 根据权利要求3所述的方法，其特征在于，所述判断规则与小区制式一一对应；其中：
    所述WCDMA小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
    Figure PCTCN2015077221-appb-100001
    其中，其中
    Figure PCTCN2015077221-appb-100002
    为驻留时间、信号质量、信号强度分别所占的权重，满足
    Figure PCTCN2015077221-appb-100003
    并且
    Figure PCTCN2015077221-appb-100004
    Tstd为晋升为优质小区的参考时长，t为驻留时间；Qqualstd为信噪比Ec/No的参考值，Qqualmeas为Ec/No的实际测量值；Qrscpstd为导频信道信号强度RSCP的参考值， Qrscpmeas为RSCP的实际测量值；
    Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
  5. 根据权利要求3所述的方法，其特征在于，所述判断规则与小区制式一一对应；其中：
    所述GSM小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
    Figure PCTCN2015077221-appb-100005
    其中，
    Figure PCTCN2015077221-appb-100006
    为驻留时间、信号强度、信噪比分别所占的权重，满足
    Figure PCTCN2015077221-appb-100007
    并且
    Figure PCTCN2015077221-appb-100008
    Tstd为晋升为优质小区的参考时长，t为驻留时间；Qrxlevstd为接收信号强度RSSI的参考值，Qrxlevmeas为RSSI的实际测量值；SNRstd为信噪比的参考值，SNRmeas为信噪比的实际测量值；
    Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
  6. 根据权利要求1至4任一所述的方法，其特征在于，还包括：
    在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
    若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
    Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
    其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
  7. 根据权利要求1至3，或5任一所述的方法，其特征在于，还包括：
    在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质 小区的所述邻居小区中；
    若所述邻居小区为GSM小区，则对应的驻留条件包括：
    Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
    其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
  8. 根据权利要求1至5任一所述的方法，其特征在于，所述将所述目标小区标识为优质小区包括：
    将数据库按照小区制式分为多个分区，所述目标小区的小区标识存储在对应制式的分区中。
  9. 一种移动终端，其特征在于，包括：
    判断模块，用于在进行小区重选的过程中，判断当前的服务小区是否为优质小区；
    处理模块，用于若判断获知当前的服务小区为优质小区，则选择继续驻留在所述服务小区中；其中，所述优质小区为满足晋升为优质小区的判断规则的小区。
  10. 根据权利要求9所述的移动终端，其特征在于，还包括：
    测量模块，用于对所述服务小区进行小区测量，获得测量参数；
    标识模块，用于若根据所述测量参数判断获知所述服务小区满足所述判断规则，则将所述服务小区标识为优质小区。
  11. 根据权利要求10所述的移动终端，其特征在于，所述测量参数包括在进行小区测量时已持续驻留在所述服务小区的驻留时间，以及在进行小区测量时所述服务小区的信号质量和信号强度；对应地，所述判断规则为：
    根据所述驻留时间、信号质量和信号强度，以及各自所对应的权重，获取所述服务小区对应的参考值，并判断所述参考值是否达到预定值。
  12. 根据权利要求11所述的移动终端，其特征在于，所述判断规则与小区制式一一对应；其中：
    所述WCDMA小区对应的判断规则为参考值Qex达到预定值Qmax，其 中：
    Figure PCTCN2015077221-appb-100009
    其中，其中
    Figure PCTCN2015077221-appb-100010
    为驻留时间、信号质量、信号强度分别所占的权重，满足
    Figure PCTCN2015077221-appb-100011
    并且
    Figure PCTCN2015077221-appb-100012
    Tstd为晋升为优质小区的参考时长，t为驻留时间；Qqualstd为信噪比Ec/No的参考值，Qqualmeas为Ec/No的实际测量值；Qrscpstd为导频信道信号强度RSCP的参考值，Qrscpmeas为RSCP的实际测量值；
    以上，Qqualmax、Qrscpmax分别为预设最大值，Qmax≤1。
  13. 根据权利要求11所述的移动终端，其特征在于，所述判断规则与小区制式一一对应；其中：
    所述GSM小区对应的判断规则为参考值Qex达到预定值Qmax，其中：
    Figure PCTCN2015077221-appb-100013
    其中，
    Figure PCTCN2015077221-appb-100014
    为驻留时间、信号强度、信噪比分别所占的权重，满足
    Figure PCTCN2015077221-appb-100015
    并且
    Figure PCTCN2015077221-appb-100016
    Tstd为晋升为优质小区的参考时长，t为驻留时间；Qrxlevstd为接收信号强度RSSI的参考值，Qrxlevmeas为RSSI的实际测量值；SNRstd为信噪比的参考值，SNRmeas为信噪比的实际测量值；
    以上，Qrxlevmax、SNRmax分别为预设最大值，Qmax≤1。
  14. 根据权利要求9至12任一所述的移动终端，其特征在于，所述处理模块还用于：
    在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
    若所述邻居小区为WCDMA小区，则对应的驻留条件包括：
    Qqualmeas＞Qqualmin&&Qrscpmeas＞Qrscpmin&&持续tmin秒；
    其中，Qqualmeas为所述邻居小区对应的信噪比Ec/No的实际测量值，Qrscpmeas为所述邻居小区对应的导频信道信号强度RSCP的实际测量值，Qqualmin、Qrscpmin分别为作为优质小区的最小预设接入值；tmin表示同时满足Qqualmeas＞Qqualmin与Qrscpmeas＞Qrscpmin的至少持续时间。
  15. 根据权利要求9至11，或13任一所述的移动终端，其特征在于，所述处理模块还用于：
    在进行小区重选的过程中，若判断获知当前的服务小区不为优质小区，则继续判断邻居小区中是否存在优质小区，若存在，则判断作为优质小区的所述邻居小区是否满足驻留条件，若满足，则切换到作为优质小区的所述邻居小区中；
    若所述邻居小区为GSM小区，则对应的驻留条件包括：
    Qrxlevmeas＞Qrxlevmin&&持续tmin秒；
    其中，Qrxlevmeas为所述邻居小区对应的接收信号强度RSSI的实际测量值，Qrxlevmin为作为优质小区的最小预设接入值；tmin表示满足Qrxlevmeas＞Qrxlevmin的至少持续时间。
  16. 根据权利要求9至13任一所述的移动终端，其特征在于，还包括：
    数据库，所述数据库按照小区制式分为多个分区，用于存储作为优质小区的小区标识。
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