CN102595474B - Method for establishing communication connection and user equipment - Google Patents

Method for establishing communication connection and user equipment Download PDF

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Publication number
CN102595474B
CN102595474B CN201210078356.8A CN201210078356A CN102595474B CN 102595474 B CN102595474 B CN 102595474B CN 201210078356 A CN201210078356 A CN 201210078356A CN 102595474 B CN102595474 B CN 102595474B
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adjacent cell
signal strength
threshold value
predetermined threshold
signal intensity
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CN102595474A (en
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徐自翔
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Honor Device Co Ltd
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Huawei Device Co Ltd
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Abstract

The invention discloses a method for establishing communication connection and user equipment. The method comprises the following steps that: the signal intensity of adjacent communities which are contained in a list of adjacent communities issued by a network side is measured; when the signal intensity of all adjacent communities contained in the list of the adjacent communities is measured to be lower than a first preset threshold value, adjacent communities with the signal intensity being higher than a second preset threshold value are searched among the adjacent communities other than the adjacent communities contained in the list of the adjacent communities; and communication connection with the searched adjacent communities with the signal intensity being higher than the second preset threshold value is established. According to an adjacent community measuring method and the user equipment, the adjacent communities which the signal intensity being higher than the second preset threshold value are searched in the adjacent communities other than those in the list of the adjacent communities and the communication connection with the searched adjacent communities with the signal intensity being higher than the second preset threshold value is established, so that the problems of offline, cut-off and the like are reduced, and the continuity of wireless business is enhanced.

Description

The method established a communications link and subscriber equipment
Technical field
The present invention relates to communication technical field, particularly a kind of method of establishing a communications link and subscriber equipment.
Background technology
In communication system, usually wireless coverage area is divided into multiple community, community is the Minimum Area unit that user carries out wireless access.For realizing the business such as cell merge, cell reselection, UE (User Equipment, subscriber equipment) is needed to measure adjacent cell.
Prior art UE is when carrying out adjacent cell measurement, UE receives the adjacent cell list that network side issues, when the community at UE place can not meet communication condition, UE carries out signal strength measurement one by one to the adjacent cell that this adjacent cell list comprises, search meets the adjacent cell of communication condition, and UE switching or gravity treatment are to the adjacent cell meeting communication condition.
Realizing in process of the present invention, inventor finds, the adjacent cell signal quality of prior art only in the adjacent cell list that issues of Sampling network side, when the signal quality of the adjacent cell in described adjacent cell list all can not meet communication condition, can affect the continuity of wireless traffic.
Summary of the invention
The embodiment of the present invention provides a kind of method of establishing a communications link and subscriber equipment, can supplementary signal is good in time adjacent cell, thus strengthens the continuity of wireless traffic.
The embodiment of the present invention adopts following technical scheme:
The method established a communications link, comprising:
The adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement;
When the signal strength signal intensity measuring whole adjacent cells that described adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that described adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Establish a communications link with the adjacent cell of the described signal strength signal intensity searched higher than the second predetermined threshold value.
A kind of subscriber equipment, comprising:
Measurement module, the adjacent cell that the adjacent cell list for issuing network side comprises carries out signal strength measurement;
Search module, for when the signal strength signal intensity measuring whole adjacent cells that described adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that described adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Link block, for establishing a communications link with the adjacent cell of the described signal strength signal intensity searched higher than the second predetermined threshold value.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
When the signal strength signal intensity of whole adjacent cells that the adjacent cell list that network side issues comprises is all lower than the first predetermined threshold value, automatically in the adjacent cell beyond adjacent cell list, search signal intensity is higher than the target adjacent section of the second predetermined threshold value, and establish a communications link with the target adjacent section searched, thus can the signal quality of adjacent cell in the adjacent cell list that network side issues when all can not meet communication condition, can supplementary signal is good in time adjacent cell, reduce and fall the problem such as net, call drop, strengthen the continuity of wireless traffic.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the method established a communications link that the embodiment of the present invention 1 provides;
Fig. 2 is the flow chart of the method established a communications link that the embodiment of the present invention 2 provides;
Fig. 3 is the flow chart of the method established a communications link that the embodiment of the present invention 4 provides;
Fig. 4 is the structural representation of the subscriber equipment that the embodiment of the present invention 4 provides;
Fig. 5 is the structural representation of the subscriber equipment that another embodiment of subscriber equipment that the embodiment of the present invention 4 provides provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of method established a communications link, and the method can be realized by UE, comprising:
101, the adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement;
In the present embodiment, when the signal strength signal intensity of the community at UE place can not meet the demands, the adjacent cell that the adjacent cell list that UE issues network side comprises carries out signal strength measurement.
102, when the signal strength signal intensity measuring whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
In the particular embodiment, the first predetermined threshold value and the second predetermined threshold value can adjust according to concrete scene.Such as, when UE is in connection status, the first predetermined threshold value can be threshold value X1, and the second predetermined threshold value can be threshold value X2; When UE is in idle condition, the first predetermined threshold value can be threshold value Y1, and the second predetermined threshold value can be threshold value Y2.Wherein, threshold value X1 < threshold value X2, threshold value Y1 < threshold value Y2, threshold value X1 > threshold value Y1.
103, establish a communications link with the adjacent cell of the signal strength signal intensity searched higher than the second predetermined threshold value.
The method that the present embodiment provides, when the signal strength signal intensity of whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, automatically in the adjacent cell beyond adjacent cell list carries out, search signal intensity is higher than the adjacent cell of the second predetermined threshold value, and establish a communications link with the adjacent cell of the signal strength signal intensity searched higher than the second predetermined threshold value, thus can the signal quality of adjacent cell in the adjacent cell list that network side issues when all can not meet communication condition, can supplementary signal is good in time adjacent cell, reduce and fall net, the problems such as call drop, strengthen the continuity of wireless traffic.
Embodiment 2, embodiment 3 will introduce the implementation procedure of the method established a communications link when UE is in connection status and when UE is in idle condition in detail below.
Embodiment 2
The present embodiment introduces the method established a communications link when UE is in connection status (as UE is in talking state) in detail, and the present embodiment can be realized by UE, as shown in Figure 2, comprising:
201, when current cell signal strength is lower than the 3rd predetermined threshold value, the adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement;
Wherein, current area is the community at the current place of UE, and the 3rd predetermined threshold value can, through presetting, be X3 as set the 3rd predetermined threshold value.
202, when the signal strength signal intensity measuring whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Particularly, the signal strength signal intensity of the whole adjacent cells comprised when adjacent cell list is all lower than the first predetermined threshold value X1, and the duration exceedes preset time T 1, then in the adjacent cell beyond the adjacent cell comprised at adjacent cell list, search signal intensity is higher than the adjacent cell of the second predetermined threshold value X2.
Further, when the adjacent cell of search signal intensity higher than the second predetermined threshold value X2, preferential to GSM (Global Systemof Mobile communication, global system for mobile communications) under all adjacent cells measure, if do not search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value X2 under GSM, again to TD-SCDMA (Time Division-SynchronousCode Division Multiple Access, TD SDMA) all adjacent cells are measured under system, if do not search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value X2 under TD-SCDMA system yet, after preset time T 2, again successively under GSM, under TD-SCDMA system, search signal intensity is higher than the adjacent cell of the second predetermined threshold value X2, when after repeat search N1 time, do not search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value X2 yet, then stop search.Wherein, the first predetermined threshold value X1, the second predetermined threshold value X2, preset time T 1, preset time T 2 and searching times N1 can through presetting, threshold value X2 > threshold value X1.
203, after searching the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value, the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value is switched to from current area;
Wherein, be switched to signal strength signal intensity from current area and be specially higher than the adjacent cell of the second predetermined threshold value X2, initiate handover request to network side, after network side receives handover request, UE is switched to the adjacent cell of this signal strength signal intensity higher than the second predetermined threshold value X2.
Alternatively, in embody rule, the method can also comprise 204;
204, storage signal intensity is higher than the adjacent cell of the second predetermined threshold value, and the adjacent cell that signal strength signal intensity comprises higher than adjacent cell and the adjacent cell list of the second predetermined threshold value is together carried out signal strength measurement.
Particularly, the adjacent cell adjacent cell list as a supplement that signal strength signal intensity can be comprised higher than adjacent cell and the adjacent cell list of the second predetermined threshold value X2, and store this supplementary adjacent cell list, when again starting neighboring area signal ionization meter, signal strength measurement is carried out to the adjacent cell that this supplementary adjacent cell list comprises.
Further, when storing this supplementary adjacent cell and more showing, this supplementary adjacent cell list can be stored in the memory (SIM card as mobile phone) of UE, UE is when starting shooting, read this supplementary adjacent cell list, UE stores up-to-date supplementary adjacent cell list when shutting down.Thus can ensure that UE is being restarted or after factory reset, still can retained supplementary adjacent cell list record, UE can be improved and search for the search of adjacent cell and measure efficiency.
It should be noted that, the present embodiment also can in 203 search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value after, before being switched to the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value from current area, perform above-mentioned 204.
In the present embodiment, alternatively, threshold value X3 > threshold value X2 > threshold value X1.
The method that the present embodiment provides, when the signal strength signal intensity of whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, in adjacent cell beyond the adjacent cell that UE comprises at adjacent cell list automatically, search signal intensity is higher than the adjacent cell of the second predetermined threshold value, and after searching the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value, be switched to the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value from current area, thus strengthen the continuity of wireless traffic.In addition, the signal strength signal intensity beyond the adjacent cell that the present embodiment storage adjacent cell list comprises, higher than the adjacent cell of the second predetermined threshold value, can reduce the number of times of search signal intensity higher than the adjacent cell of the second predetermined threshold value, thus improve measurement efficiency.
Embodiment 3
The method established a communications link when UE is in idle condition (as UE is in holding state) is introduced in this enforcement in detail, and the present embodiment can be realized by UE, and as shown in Figure 3, the idiographic flow of the present embodiment comprises:
301, when current cell signal strength is lower than the 3rd predetermined threshold value, the adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement;
In the present embodiment, the signal strength signal intensity of each adjacent cell that can comprise according to adjacent cell list, determine the first measuring frequency of each adjacent cell that adjacent cell list comprises, according to the first measuring frequency, signal strength measurement is carried out to each adjacent cell that described adjacent cell list comprises.
Wherein, current area is the community at the current place of UE, and the 3rd predetermined threshold value can, through presetting, be Y3 as set the 3rd predetermined threshold value.When the adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement, the signal strength signal intensity of each adjacent cell that can comprise according to adjacent cell list, determines the signal strength measurement frequency of each adjacent cell that adjacent cell list comprises.
Particularly, table 1 is the definition of the signal strength measurement frequency of an adjacent cell, and in table 1, the unit of signal strength signal intensity is dBm (dBm).
Table 1
Signal strength signal intensity (dBm) >-65 [-65,-80) [-80,-90) [-90,-100) ≤-100
Measuring frequency 2 1 0.5 0.25 0.125
According to the definition of table 1, the adjacent cell measurement frequency that signal strength signal intensity is greater than-65dBm is 2, represents in the signal strength measurement of follow-up adjacent cell, and the adjacent cell signal strength measurement frequency that signal strength signal intensity is greater than-65dBm is 2 times of normal signal ionization meter frequency; In like manner, can determine that signal strength signal intensity is positioned at the signal strength measurement frequency of the adjacent cell in other intervals according to the definition of table 1, repeat no more.
When dtr signal environment, in order to prevent the measuring frequency of all adjacent cells all too low, if there is no measuring frequency is the adjacent cell of 1, then postorder measuring frequency is multiplied by 2 successively, that is, signal strength signal intensity is positioned at [-80,-90) measuring frequency of interval adjacent cell changes to 1 by 0.5, signal strength signal intensity is positioned at [-90 ,-100) measuring frequency of interval adjacent cell changes to 0.5 by 0.25, and the measuring frequency that signal strength signal intensity is less than or equal to the adjacent cell of-100dBm changes to 0.25 by 0.125.
302, when the signal strength signal intensity measuring whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Particularly, the signal strength signal intensity of the whole adjacent cells comprised when adjacent cell list is all lower than the first predetermined threshold value Y1, and the duration exceedes preset time T 3, then in the adjacent cell beyond the adjacent cell comprised at adjacent cell list, search signal intensity is higher than the adjacent cell of the second predetermined threshold value Y2.
Further, when the adjacent cell of search signal intensity higher than the second predetermined threshold value Y2, can preferentially measure adjacent cells all under TD-SCDMA system, if do not search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value Y2 under TD-SCDMA system, again adjacent cells all under GSM are measured, if do not search the adjacent cell of signal strength signal intensity higher than threshold value Y2 under GSM yet, after preset time T 4, again successively under TD-SCDMA system, under GSM, search signal intensity is higher than the adjacent cell of the second predetermined threshold value Y2, when after repeat search N2 time, do not search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value Y2 yet, then stop search.Wherein, the first predetermined threshold value Y1, the second predetermined threshold value Y2, preset time T 3, preset time T 4, searching times N2 can through presetting, threshold value Y2 > threshold value Y1.
303, after searching the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value, from current area gravity treatment to signal strength signal intensity higher than the adjacent cell of the second predetermined threshold value;
Wherein, can be specially from current area gravity treatment to signal strength signal intensity higher than the adjacent cell of the second predetermined threshold value Y2, initiate and the down-going synchronous of signal strength signal intensity higher than the adjacent cell of the second predetermined threshold value Y2 to network side, read P-CCPCH (the Primary Common Control Physical Channel of this signal strength signal intensity higher than the adjacent cell of the second predetermined threshold value Y2, Primary Common Control Physical Channel) information, and register in the adjacent cell of this signal strength signal intensity higher than the second predetermined threshold value Y2, after having registered, UE successful reselection is to the adjacent cell of this signal strength signal intensity higher than the second predetermined threshold value Y2.
Alternatively, in embody rule, the method can also comprise 304,305;
304, storage signal intensity is higher than the adjacent cell of the second predetermined threshold value, and by adjacent cell adjacent cell list as a supplement that signal strength signal intensity comprises higher than adjacent cell and the adjacent cell list of the second predetermined threshold value;
305, according to the signal strength signal intensity of supplementing each adjacent cell that adjacent cell list comprises, determine the second measuring frequency of each adjacent cell that supplementary adjacent cell list comprises, according to the second measuring frequency, signal strength measurement is carried out to each adjacent cell that supplementary adjacent cell list comprises.Specifically with reference to the associated description in step 301, the second measuring frequency can be determined.
Particularly, supplementary adjacent cell list can be stored, when again starting neighboring area signal ionization meter, signal strength measurement be carried out to the adjacent cell that this supplementary adjacent cell list comprises.
According to the signal strength signal intensity of each adjacent cell that supplementary adjacent cell list comprises, determine that the method for the measuring frequency of each adjacent cell that supplementary adjacent cell list comprises is identical with above-mentioned 301 principles, refer to.
It should be noted that, the present embodiment also can in 303 search the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value after, from current area gravity treatment to signal strength signal intensity higher than before the adjacent cell of the second predetermined threshold value, perform above-mentioned 304,305.
In the present embodiment, threshold value Y3 > threshold value Y2 > threshold value Y1.
The method that the present embodiment provides, when the signal strength signal intensity of whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, in adjacent cell beyond the adjacent cell that UE comprises at adjacent cell list automatically, search signal intensity is higher than the adjacent cell of the second predetermined threshold value, and after searching the adjacent cell of signal strength signal intensity higher than the second predetermined threshold value, from current area gravity treatment to signal strength signal intensity higher than the adjacent cell of the second predetermined threshold value, thus strengthen the continuity of wireless traffic.In addition, the present embodiment can change the measuring frequency of adjacent cell according to the signal strength signal intensity of adjacent cell, thus reduce measurement power consumption, the adjacent cell of the signal strength signal intensity beyond adjacent cell that adjacent cell list comprises higher than the second predetermined threshold value can also be stored, the number of times of search signal intensity higher than the adjacent cell of the second predetermined threshold value can be reduced, thus improve measurement efficiency.
Embodiment 4
The present embodiment provides a kind of subscriber equipment, and as shown in Figure 4, this subscriber equipment comprises: measurement module 41, search module 42, link block 43, wherein,
Measurement module 41, the adjacent cell that the adjacent cell list for issuing network side comprises carries out signal strength measurement;
Search module 42, for when the signal strength signal intensity measuring whole adjacent cells that described adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that described adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Link block 43, for establishing a communications link with the adjacent cell of the described signal strength signal intensity searched higher than the second predetermined threshold value.
Alternatively, as shown in Figure 5, link block 43 can comprise: switch unit 431, for when connection status, is switched to the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value from current area; Gravity treatment unit 432, for when idle condition, the adjacent cell from current area gravity treatment to described signal strength signal intensity higher than the second predetermined threshold value.
Alternatively, as shown in Figure 5, measurement module 41, specifically for when connection status, according to the signal strength signal intensity of each adjacent cell that described adjacent cell list comprises, determine the first measuring frequency of each adjacent cell that described adjacent cell list comprises, according to the first measuring frequency, signal strength measurement is carried out to each adjacent cell that adjacent cell list comprises;
Further, measurement module 41, also for when connection status, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and the adjacent cell that described signal strength signal intensity comprises higher than adjacent cell and the adjacent cell list of the second predetermined threshold value is together carried out signal strength measurement;
Further, measurement module 41, also for when idle condition, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and by adjacent cell adjacent cell list as a supplement that described signal strength signal intensity comprises higher than adjacent cell and the adjacent cell list of the second predetermined threshold value; According to the signal strength signal intensity of each adjacent cell that the supplementary adjacent cell list of cell stores comprises, determine the second measuring frequency of each adjacent cell that supplementary adjacent cell list comprises, according to the second measuring frequency, signal strength measurement is carried out to each adjacent cell that supplementary adjacent cell list comprises.
It should be noted that: the subscriber equipment that the present embodiment provides and the method established a communications link that above-described embodiment provides belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.In addition, the subscriber equipment that the present embodiment provides, when stating, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, the internal structure by equipment is divided into different functional modules, to complete above-mentioned all or part of function.
The subscriber equipment that the present embodiment provides, when the signal strength signal intensity of whole adjacent cells that adjacent cell list comprises is all lower than the first predetermined threshold value, automatically in the adjacent cell beyond adjacent cell list carries out, search signal intensity is higher than the adjacent cell of the second predetermined threshold value, and establish a communications link with the adjacent cell of the signal strength signal intensity searched higher than the second predetermined threshold value, thus the problem such as net, call drop is fallen in minimizing, strengthen the continuity of wireless traffic.In addition, the present embodiment can change the measuring frequency of adjacent cell according to the signal strength signal intensity of adjacent cell, thus reduces measurement power consumption; Signal strength signal intensity beyond adjacent cell that adjacent cell list comprises can also be stored higher than the adjacent cell of the second predetermined threshold value, the number of times of search signal intensity higher than the adjacent cell of the second predetermined threshold value can be reduced, thus improve and measure efficiency.
It should be noted that, the same principle of the method for measuring adjacent cell that the embodiment of the present invention provides and subscriber equipment can be applied to GSM, TD-SCDMA communication system, the communication system beyond GSM, TD-SCDMA can also be applied to, as WCDMA communication system, the parameters such as corresponding predetermined threshold value can be changed as required, repeat no more herein.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
These are only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. the method established a communications link, is characterized in that, comprising:
The adjacent cell that the adjacent cell list issued network side comprises carries out signal strength measurement;
When the signal strength signal intensity measuring whole adjacent cells that described adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that described adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Establish a communications link with the adjacent cell of the described signal strength signal intensity searched higher than the second predetermined threshold value;
The adjacent cell that the described adjacent cell list issued network side comprises is carried out signal strength measurement and is comprised:
When idle condition, according to the signal strength signal intensity of each adjacent cell that described adjacent cell list comprises, determine the first measuring frequency of each adjacent cell that described adjacent cell list comprises, according to described first measuring frequency, signal strength measurement is carried out to each adjacent cell that described adjacent cell list comprises.
2. method according to claim 1, is characterized in that, the described described signal strength signal intensity with searching establishes a communications link higher than the adjacent cell of the second predetermined threshold value and comprises:
When connection status, be switched to the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value from current area;
When idle condition, the adjacent cell from current area gravity treatment to described signal strength signal intensity higher than the second predetermined threshold value.
3. method according to claim 1, is characterized in that, also comprises:
When connection status, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and the adjacent cell that described signal strength signal intensity comprises higher than adjacent cell and the described adjacent cell list of the second predetermined threshold value is together carried out signal strength measurement.
4. method according to claim 1, is characterized in that, also comprises:
When idle condition, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and by adjacent cell adjacent cell list as a supplement that described signal strength signal intensity comprises higher than adjacent cell and the described adjacent cell list of the second predetermined threshold value;
According to the signal strength signal intensity of each adjacent cell that described supplementary adjacent cell list comprises, determine the second measuring frequency of each adjacent cell that described supplementary adjacent cell list comprises, according to described second measuring frequency, signal strength measurement is carried out to each adjacent cell that described supplementary adjacent cell list comprises.
5. a subscriber equipment, is characterized in that, comprising:
Measurement module, the adjacent cell that the adjacent cell list for issuing network side comprises carries out signal strength measurement;
Search module, for when the signal strength signal intensity measuring whole adjacent cells that described adjacent cell list comprises is all lower than the first predetermined threshold value, in the adjacent cell beyond the adjacent cell that described adjacent cell list comprises, search signal intensity is higher than the adjacent cell of the second predetermined threshold value;
Link block, for establishing a communications link with the adjacent cell of the described signal strength signal intensity searched higher than the second predetermined threshold value;
Described measurement module, specifically for when idle condition, according to the signal strength signal intensity of each adjacent cell that described adjacent cell list comprises, determine the first measuring frequency of each adjacent cell that described adjacent cell list comprises, according to described first measuring frequency, signal strength measurement is carried out to each adjacent cell that described adjacent cell list comprises.
6. subscriber equipment according to claim 5, is characterized in that, described link block comprises:
Switch unit, for when connection status, is switched to the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value from current area;
Gravity treatment unit, for when idle condition, the adjacent cell from current area gravity treatment to described signal strength signal intensity higher than the second predetermined threshold value.
7. subscriber equipment according to claim 5, it is characterized in that, described measurement module, also for when connection status, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and the adjacent cell that described signal strength signal intensity comprises higher than adjacent cell and the described adjacent cell list of the second predetermined threshold value is together carried out signal strength measurement.
8. subscriber equipment according to claim 5, it is characterized in that, described measurement module, also for when idle condition, store the adjacent cell of described signal strength signal intensity higher than the second predetermined threshold value, and by adjacent cell adjacent cell list as a supplement that described signal strength signal intensity comprises higher than adjacent cell and the described adjacent cell list of the second predetermined threshold value; According to the signal strength signal intensity of each adjacent cell that described supplementary adjacent cell list comprises, determine the second measuring frequency of each adjacent cell that described supplementary adjacent cell list comprises, according to described second measuring frequency, signal strength measurement is carried out to each adjacent cell that described supplementary adjacent cell list comprises.
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