CN104348565B - Interfered cell detection method and subscriber equipment - Google Patents
Interfered cell detection method and subscriber equipment Download PDFInfo
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Abstract
The present invention provides a kind of interfered cell detection method and subscriber equipment, and described interfered cell detection method is applied to the subscriber equipment being under CELL_DCH state, including: obtain all neighbor cells of Serving cell；For each described neighbor cell, detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency；When the dominant frequency point that storage has described neighbor cell is identical with the working carrier frequency of Serving cell with the dominant frequency of auxiliary frequency and described neighbor cell point or auxiliary frequency, or, when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, described neighbor cell is joined in the list of interfered cell.The present invention can accurately obtain the interfered cell list on time slot TS2～TS6, to guarantee that follow-up downlink data on time slot TS0～TS6 can be correctly decoded when subscriber equipment is in CELL_DCH state.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of interfered cell detection method and subscriber equipment.
Background technology
TD-SCDMA(Time Division-Synchronous Code Division Multiple Access, the time-division
S-CDMA-Synchronous Code Division Multiple Access) it is UMTS(Universal Mobile Telecommunications System, universal mobile communications system
System) one of standard, TD-SCDMA uses N frequency point networking, and Ji Yige community has N number of frequency.
Refer to the frequency point information schematic diagram of the N frequency point networking that Fig. 1, Fig. 1 are TD-SCDMA of the prior art.
One of them is dominant frequency point (Primary Frequency).On dominant frequency point, NodeB(base station) use TS0/
DwPTS/UpPTS/TS1 time slot, and UE(subscriber equipment) use TS0 time slot to carry out RSCP(Received Signal Code
Power, received signal code power) measure, use DwPTS to carry out AGC/OTD/ downgoing time synchronization, and use UpPTS to carry out
Uplink random accesses.
Other two frequency bins are auxiliary frequency (Secondary Frequency).On auxiliary frequency, NodeB use TS2～
TS6 time slot, if TS2～TS6 time slot is configured to descending time slot, UE will decode DPCH/HS-PDSCH in TS2～TS6.?
Not from the signal of community on the TS0/DwPTS time slot of auxiliary frequency.
When UE is in the Idle(free time)/CELL_PCH(cell _ paging channel)/CELL_FACH(community _ forward direction access letter
Road) state time, it resides in and does not use the auxiliary frequency on Serving cell on dominant frequency point.If UE entrance CELL_DCH(community _
Dedicated channel) state to be to perform CS/PS(circuit switched/packet switched) business, network side can issue RADIOBEARER_SETUP
Signaling request UE uses in 2 auxiliary frequencies.The auxiliary frequency that UE uses is referred to as working carrier frequency, and working carrier frequency also by
Regard as with frequency.
Build network owing to TD-SCDMA uses with frequency, therefore, receive when subscriber equipment processes on descending time slot
Data time, remove co-frequency cell interference most important for UE.
UE is firstly the need of obtaining interfered cell list, then when descending decoding, utilizes interference cancellation algorithm to eliminate interference
The signal of the inter-frequency interference cell in cell list, thus obtain the optimum data from Serving cell.If UE is the most appropriate
Ground selects inter-frequency interference cell, and descending decoding will be affected, and sometimes result in substantial amounts of CRC(Cyclic
Redundancy Check, CRC) error, so that CS/PS business performs failure.
When on the time slot that UE is operated in dominant frequency point, all co-frequency cells of dominant frequency point can be obtained according to measurement result.
In some embodiments, UE uses the optimal RSCP ZhiNGe community that has in co-frequency cell to do as the same frequency of dominant frequency point
Disturb community.
But, when the descending time slot TS2 to TS6 that UE is operated in auxiliary frequency is upper, situation is the most complicated many.Because TD-
SCDMA uses N frequency point networking, and N number of frequency is occupied in the most each community, and UE is not aware that the auxiliary frequency of neighbor cell.
When UE receives data on the time slot TS2-TS6 of working carrier frequency, other UE of neighbor cell too can be with work
Make on this frequency.But, network side can't notify which community of UE occupies the auxiliary frequency identical with Serving cell (currently
Embodiment in, the dominant frequency point of neighbor cell is only notified UE by network side, and UE is not aware that the auxiliary frequency of neighbor cell).
Owing to UE cannot know which community occupies the frequency identical with work at present carrier frequency, it has to use all neighbours
The dominant frequency point in district has optimal RSCP ZhiNGe community as inter-frequency interference cell.This problem place exactly.Such as dried fruits
Disturbing Dou Shi alien-frequency district, cell list ZhongNGe community, this can do nothing to help L1 the most completely and removes the interference of co-frequency cell.
Therefore, when UE is in CELL_DCH state, need to obtain interfered cell list accurately on time slot TS2-TS6,
To guarantee that the downlink data on time slot TS0-TS6 can be correctly decoded.
Summary of the invention
In view of this, the present invention provides a kind of interfered cell detection method and subscriber equipment, to be in CELL_DCH at UE
During state, accurately obtain the interfered cell list on time slot TS2-TS6, to guarantee follow-up lower line number on time slot TS0-TS6
According to being correctly decoded.
For solving the problems referred to above, the present invention provides a kind of inter-frequency interference cell detection method, is applied to be in community _ special
Subscriber equipment under channel CELL_DCH state, it is characterised in that including: obtain all neighbor cells of Serving cell；For
Each described neighbor cell, detects whether to store the dominant frequency point of described neighbor cell and auxiliary frequency；When storage has described adjacent
When the dominant frequency point of community is identical with the working carrier frequency of Serving cell with the dominant frequency of auxiliary frequency and described neighbor cell point or auxiliary frequency,
Or, when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, described neighbor cell is joined interfered cell list
In.
Preferably, described in detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency step before, also wrap
Including: obtain persistent district frequency point information list, in the frequency point information list of described persistent district, storage has described subscriber equipment once to stay
The frequency point information of the community stayed；The step of the described dominant frequency point detecting whether to store described neighbor cell and auxiliary frequency is concrete
Including: by whether inquiry described persistent district frequency point information list comprises the dominant frequency point of described neighbor cell and auxiliary frequency,
Detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency.
Preferably, before the step of described acquisition persistent district frequency point information list, also include: when described subscriber equipment enters
When entering CELL_DCH state, obtain the dominant frequency point of described Serving cell and auxiliary frequency；By the dominant frequency point of described Serving cell and auxiliary
Frequency is updated in the frequency point information list of described persistent district.
Preferably, the described dominant frequency point by described Serving cell and auxiliary frequency are updated to described persistent district frequency point information row
After step in table, also include: periodically empty the frequency point information list of described persistent district.
Preferably, described described neighbor cell is joined the step in the list of interfered cell after, also include: judge institute
Whether the quantity stating the interfered cell in the list of interfered cell exceedes predetermined threshold value M；When doing in the list of described interfered cell
When disturbing the quantity of community more than M, obtain the rscp value of each described interfered cell；To all described interfered cells
Rscp value be ranked up, select M the interfered cell that rscp value is minimum；Use the institute selected
State M interfered cell and update the list of described interfered cell, the interfered cell list after being updated.
The present invention also provides for a kind of subscriber equipment, including: neighbor cell acquisition module, for obtaining all of Serving cell
Neighbor cell；Detection module, for for each described neighbor cell, detects whether to store the dominant frequency point of described neighbor cell
With auxiliary frequency；First obtains module, for when storing the dominant frequency point and auxiliary frequency and described neighbor cell having described neighbor cell
Dominant frequency point or auxiliary frequency identical with the working carrier frequency of Serving cell time, described neighbor cell is joined interfered cell list
In；Second obtains module, for when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, is added described neighbor cell
In the list of interfered cell.
Preferably, described subscriber equipment also includes: persistent district frequency point information list acquisition module, is used for obtaining resident little
District's frequency point information list, in the frequency point information list of described persistent district, storage has the frequency of the community of the most resident mistake of described subscriber equipment
Dot information；Wherein, whether described detection module is described adjacent little by comprising in inquiry described persistent district frequency point information list
The dominant frequency point in district and auxiliary frequency, detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency.
Preferably, described subscriber equipment also includes: the first more new module, for entering community _ specially when described subscriber equipment
During by channel CELL_DCH state, obtain the dominant frequency point of Serving cell and auxiliary frequency, and by the dominant frequency point of described Serving cell and
Auxiliary frequency is updated in the frequency point information list of described persistent district.
Preferably, described subscriber equipment also includes: empty module, for periodically emptying described persistent district frequency letter
Breath list.
Preferably, described subscriber equipment also includes: judge module, for judging that the interference in the list of described interfered cell is little
Whether the quantity in district exceedes predetermined threshold value M；Rscp value acquisition module, for when in the list of described interfered cell
The quantity of interfered cell more than M time, obtain the rscp value of each described interfered cell；Select module, be used for
Being ranked up the rscp value of all described interfered cells, M that selects rscp value minimum dry
Disturb community；Second more new module, for using described M the interfered cell of selection to update the list of described interfered cell, obtains more
Interfered cell list after Xin.
The method have the advantages that
When detecting interfered cell, comprehensively in view of dominant frequency point and the auxiliary frequency of neighbor cell, it is thus possible to set user
During standby entrance CELL_DCH state, accurately obtain the interfered cell list on time slot TS2-TS6, follow-up at time slot TS0-to guarantee
Downlink data on TS6 can be correctly decoded.And, when subscriber equipment does not stores the dominant frequency point of neighbor cell and auxiliary frequency
Time, also neighbor cell is joined in the list of interfered cell, thus avoid omitting possible interfered cell so that interfered cell
It is more accurate to detect.As long as it addition, subscriber equipment is by detecting the dominant frequency point of locally stored neighbor cell and auxiliary frequency, it is possible to
Obtaining interfered cell, implement simple, cost is relatively low.
Accompanying drawing explanation
Fig. 1 is the frequency point information schematic diagram of the N frequency point networking of TD-SCDMA of the prior art；
Fig. 2 is the schematic flow sheet of the interfered cell detection method of the embodiment of the present invention one；
Fig. 3 is the schematic flow sheet of the interfered cell detection method of the embodiment of the present invention two；
Fig. 4 is the schematic flow sheet of the update method of the interfered cell list of the embodiment of the present invention three；
Fig. 5 is the structured flowchart of the subscriber equipment of the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.
Refer to the schematic flow sheet of the interfered cell detection method that Fig. 2, Fig. 2 are the embodiment of the present invention one, described method
It is applied to the subscriber equipment (UE) being under CELL_DCH state, comprises the following steps:
Step 201: obtain all neighbor cells of Serving cell.
In the present embodiment, subscriber equipment can obtain all adjacent little of Serving cell according to the cell list of measuring of configuration
District, described measurement cell list includes the neighbor cell of Serving cell and Serving cell.
Step 202: successively for each neighbor cell, detects whether to store the dominant frequency point of described neighbor cell and auxiliary frequency
Point, if so, enters step 203, otherwise, enters step 204.
Subscriber equipment does not stores the dominant frequency point of neighbor cell and auxiliary frequency includes two kinds of situations: one is subscriber equipment storage
The frequency point information of neighbor cell, but the frequency point information of storage is imperfect, the most only stores dominant frequency point, does not stores auxiliary frequency
Point.Another kind is any frequency point information that subscriber equipment does not stores neighbor cell.
Step 203: when storage has the dominant frequency point of described neighbor cell and auxiliary frequency, it is judged that the dominant frequency point of described neighbor cell
Or auxiliary frequency is the most identical with the working carrier frequency of Serving cell, if so, enters step 204, otherwise, return step 202, until institute
There is neighbor cell the most detected.
Step 204: described neighbor cell is joined in the list of interfered cell.
The method provided by above-described embodiment, when detecting interfered cell, comprehensively in view of the dominant frequency point of neighbor cell
With auxiliary frequency, it is thus possible to when subscriber equipment enters CELL_DCH state, accurately obtain the interfered cell on time slot TS2-TS6
List, to guarantee that follow-up downlink data on time slot TS0-TS6 can be correctly decoded.And, when subscriber equipment does not stores
When the dominant frequency point of neighbor cell and auxiliary frequency, also neighbor cell is joined in the list of interfered cell, thus avoid omission possible
Interfered cell so that the detection of interfered cell is more accurate.As long as it addition, subscriber equipment is locally stored adjacent little by detection
The dominant frequency point in district and auxiliary frequency, it is possible to obtain interfered cell, implement simple, and cost is relatively low.
Refer to the schematic flow sheet of the interfered cell detection method that Fig. 3, Fig. 3 are the embodiment of the present invention two, described method
It is applied to the subscriber equipment being under CELL_DCH state, comprises the following steps:
Step 301: obtain the dominant frequency point of Serving cell and auxiliary frequency.
Step 302: dominant frequency point and the auxiliary frequency of Serving cell are stored to persistent district frequency point information list, described resident
In subdistrict frequency point information list, storage has the frequency point information of the community of the most resident mistake of described subscriber equipment.
For example, in the list of persistent district frequency point information, the information of storage can be as shown in the table:
Table 1
Wherein, cell x is Serving cell, and its dominant frequency point is dominant frequency point A, and auxiliary frequency is auxiliary frequency B and auxiliary frequency C.
In the present embodiment, subscriber equipment can update persistent district frequency point information when entering CELL_DCH state every time
List, if certain neighbor cell was once populated, its dominant frequency point and auxiliary frequency likely can be stored to persistent district frequency letter
In breath list, thus subscriber equipment is appreciated that the dominant frequency point of this neighbor cell and auxiliary frequency.
Additionally, in order to save memory space, user terminal can also periodically empty described persistent district frequency point information row
Table.
Step 303: according to all neighbor cells measuring cell list acquisition Serving cell.
Whether step 304: successively for each neighbor cell, detect in the frequency point information list of described persistent district and stored
The dominant frequency point of described neighbor cell and auxiliary frequency, if so, enter step 305, otherwise, enter step 306.
Step 305: when in the frequency point information list of described persistent district, storage has the dominant frequency point of described neighbor cell and auxiliary frequency
During point, it is judged that the dominant frequency point of described neighbor cell or auxiliary frequency are the most identical with the working carrier frequency of Serving cell, if so, enter step
Rapid 306, otherwise, return step 304, until all neighbor cells are the most detected.
Step 306: described neighbor cell is joined in the list of interfered cell.
The method provided by above-described embodiment, as long as subscriber equipment is locally maintaining persistent district frequency point information row
Table, and by the frequency point information of the neighbor cell in this persistent district frequency point information list, implement simple, cost is relatively low.
Under normal circumstances, subscriber equipment each time be at best able to suppress M co-frequency cell interference, wherein, M for be more than or
Integer equal to 1.Based on this, if the quantity of the interfered cell in the interfered cell list obtained in above-described embodiment is more than M,
Then need interfered cell list is updated.
Refer to the schematic flow sheet of the update method of the interfered cell list that Fig. 4, Fig. 4 are the embodiment of the present invention three, bag
Include following steps:
Step 401: judge whether the quantity of the interfered cell in the list of interfered cell exceedes predetermined threshold value M, if so, enters
Enter step 402, otherwise, enter step 405.
Predetermined threshold value M is the quantity that subscriber equipment is at best able to the co-frequency cell processed.
Step 402: when the quantity of the interfered cell in the list of described interfered cell is more than M, obtains each described interference
The rscp value of community.
Step 403: be ranked up the rscp value of all described interfered cells, selects received signal code merit
M the interfered cell that rate value is minimum.
Step 404: use described M the interfered cell selected to update the list of described interfered cell, doing after being updated
Disturb cell list.
Step 405: when the quantity of the interfered cell in the list of interfered cell is not less than M, do not update described interfered cell
List.
In the present embodiment, it is the rscp value by comparing interfered cell, to select M optimal interference little
District, certainly, in other embodiments of the invention, it is also possible to the ginseng of signal intensity of interfered cell can be embodied by other
Number, selects M optimal interfered cell.
In above-described embodiment, subscriber equipment, can be when decoding downlink data after obtaining interfered cell list, by dry
Disturb elimination algorithm the signal of the interfered cell in the list of interfered cell is suppressed, thus eliminate co-channel interference.
For example, subscriber equipment is under CELL_DCH state and resides in community A, and F1 is the dominant frequency point of community A, and
And subscriber equipment uses auxiliary frequency F2 as working carrier frequency.
Table 2
In currently existing scheme, neighbor cell RSCP value on dominant frequency point only known by subscriber equipment, therefore, when making
During interfered cell list in gap TS2-TS6, according to the RSCP value of dominant frequency point, all neighbor cells can be ranked up, acquisition
M the neighbor cell that RSCP value is minimum, as interfered cell.Therefore, based on the scene shown in upper table, subscriber equipment will use little
District C, F and E are as interfered cell, although the dominant frequency point of these communities is different from working carrier frequency F2, and subscriber equipment can not
Determine that the auxiliary frequency of these communities is the most identical with working carrier frequency, but for security consideration, they are still made by subscriber equipment
For interfered cell.
But, as can be seen from the above table, the working carrier frequency F2 not phase of the auxiliary frequency of community C, F and E and subscriber equipment
With, and the auxiliary frequency of community B with D identical with working carrier frequency F2 of UE but not in the list of interfered cell, therefore, use existing skill
The interfered cell list that the method for art determines, subscriber equipment cannot remove co-channel interference, because the community in the list of interfered cell
It is all alien-frequency district, and this can cause downlink data solution code error or make test result inaccurate.
And using the interfered cell detection method in the embodiment of the present invention, subscriber equipment can use locally stored adjacent
The dominant frequency point of community and auxiliary frequency, to judge whether neighbor cell has the dominant frequency point identical with working carrier frequency or auxiliary frequency.?
Under this scene, subscriber equipment can select community B and D as interfered cell exactly such that it is able to preferably carries out descending
Data decode.
Interfered cell detection method in above-described embodiment can be applicable to the TD-SCDMA system of N frequency point networking, certainly, also
It is not excluded for the probability being applied in other communication systems.
Corresponding to the interfered cell detection method in above-described embodiment, the embodiment of the present invention also provides for a kind of subscriber equipment.
Refer to the structured flowchart of the subscriber equipment that Fig. 5, Fig. 5 are the embodiment of the present invention four, described subscriber equipment includes:
Neighbor cell acquisition module 501, for obtaining all neighbor cells of Serving cell.
Detection module 502, for for each described neighbor cell, detects whether to store the dominant frequency of described neighbor cell
Point and auxiliary frequency.
First obtains module 503, for having the dominant frequency point of described neighbor cell and auxiliary frequency and described adjacent little when storage
When the dominant frequency point in district or auxiliary frequency are identical with the working carrier frequency of Serving cell, described neighbor cell is joined interfered cell list
In.
Second obtains module 504, for when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, by described adjacent
Community joins in the list of interfered cell.
The subscriber equipment provided by above-described embodiment, when detecting interfered cell, comprehensively in view of the master of neighbor cell
Frequency and auxiliary frequency, it is thus possible to when subscriber equipment enters CELL_DCH state, accurately obtain the interference on time slot TS2-TS6
Cell list, to guarantee that follow-up downlink data on time slot TS0-TS6 can be correctly decoded.And, when in subscriber equipment not
When the dominant frequency point of storage neighbor cell and auxiliary frequency, also neighbor cell is joined in the list of interfered cell, thus avoid omitting
Possible interfered cell so that the detection of interfered cell is more accurate.As long as it addition, subscriber equipment is by detecting locally stored phase
The dominant frequency point of adjacent cell and auxiliary frequency, it is possible to obtain interfered cell, implement simple, and cost is relatively low.
In some embodiments of the invention, subscriber equipment can maintain a persistent district frequency point information list, and often
During secondary entrance CELL_DCH state, update persistent district frequency point information list, if certain neighbor cell was once populated, its dominant frequency
Point and auxiliary frequency likely can be stored in the frequency point information list of persistent district, thus subscriber equipment is appreciated that this is adjacent little
The dominant frequency point in district and auxiliary frequency.Based on this, described subscriber equipment can also include:
First more new module, for when entering CELL_DCH state, obtains the dominant frequency point of Serving cell and auxiliary frequency, and
Dominant frequency point and the auxiliary frequency of described Serving cell are updated in the frequency point information list of described persistent district.
Persistent district frequency point information list acquisition module, is used for obtaining persistent district frequency point information list, described resident little
In district's frequency point information list, storage has the frequency point information of the community of the most resident mistake of described subscriber equipment.
Wherein, whether described detection module 502 is by comprising described phase in inquiry described persistent district frequency point information list
The dominant frequency point of adjacent cell and auxiliary frequency, detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency.
Under normal circumstances, subscriber equipment is at best able to suppress the interference of N number of co-frequency cell each time, wherein, N for more than or
Integer equal to 1.If it is to say, the quantity of the interfered cell in the interfered cell list obtained in above-described embodiment is more than
N, then need to be updated interfered cell list.Based on this, described subscriber equipment can also include:
Judge module, for judging whether the quantity of the interfered cell in the list of described interfered cell exceedes predetermined threshold value
M；
Rscp value acquisition module, for exceeding when the quantity of the interfered cell in the list of described interfered cell
During M, obtain the rscp value of each described interfered cell；
Select module, for the rscp value of all described interfered cells is ranked up, select to receive letter
M the interfered cell that same level value is minimum；
Second more new module, for using described M the interfered cell of selection to update the list of described interfered cell, obtains more
Interfered cell list after Xin.
Subscriber equipment in above-described embodiment can be TD-SCDMA terminal.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. an interfered cell detection method, is applied to the subscriber equipment being under CELL _ DCH CELL_DCH state, its
It is characterised by, including:
Obtain all neighbor cells of Serving cell；
For each described neighbor cell, detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency；
When storage has the dominant frequency point of described neighbor cell and the dominant frequency point of auxiliary frequency and described neighbor cell or auxiliary frequency and service
When the working carrier frequency of community is identical, or, when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, by described adjacent little
District joins in the list of interfered cell,
Wherein, when described subscriber equipment is in CELL_DCH state, the working carrier frequency of described Serving cell refers to that described user sets
The standby auxiliary frequency used.
2. the method for claim 1, it is characterised in that described in detect whether to store the dominant frequency point of described neighbor cell
Before the step of auxiliary frequency, also include:
Obtaining persistent district frequency point information list, in the frequency point information list of described persistent district, storage has described subscriber equipment once to stay
The frequency point information of the community stayed；
The step of the described dominant frequency point detecting whether to store described neighbor cell and auxiliary frequency specifically includes: described by inquiry
Whether persistent district frequency point information list comprises the dominant frequency point of described neighbor cell and auxiliary frequency, detects whether to store
State the dominant frequency point of neighbor cell and auxiliary frequency.
3. method as claimed in claim 2, it is characterised in that the step of described acquisition persistent district frequency point information list it
Before, also include:
When described subscriber equipment enters CELL_DCH state, obtain the dominant frequency point of described Serving cell and auxiliary frequency；
Dominant frequency point and the auxiliary frequency of described Serving cell are updated in the frequency point information list of described persistent district.
4. method as claimed in claim 3, it is characterised in that the described dominant frequency point by described Serving cell and auxiliary frequency update
After step to the frequency point information list of described persistent district, also include:
Periodically empty the frequency point information list of described persistent district.
5. the method for claim 1, it is characterised in that described described neighbor cell is joined in the list of interfered cell
Step after, also include:
Judge whether the quantity of the interfered cell in the list of described interfered cell exceedes predetermined threshold value M；
When the quantity of the interfered cell in the list of described interfered cell is more than M, obtain the reception letter of each described interfered cell
Same level value；
The rscp value of all described interfered cells is ranked up, selects the M that rscp value is minimum
Individual interfered cell；
Described M the interfered cell selected is used to update the list of described interfered cell, the interfered cell list after being updated.
6. a subscriber equipment, it is characterised in that including:
Neighbor cell acquisition module, for obtaining all neighbor cells of Serving cell；
Detection module, for for each described neighbor cell, detects whether to store the dominant frequency point of described neighbor cell and auxiliary
Frequency；
First obtains module, for when storing the dominant frequency point and auxiliary frequency and the dominant frequency of described neighbor cell having described neighbor cell
When point or auxiliary frequency are identical with the working carrier frequency of Serving cell, described neighbor cell is joined in the list of interfered cell；
Second obtains module, for when not storing the dominant frequency point of described neighbor cell or auxiliary frequency, is added described neighbor cell
Enter in the list of interfered cell,
Wherein, when described subscriber equipment is in CELL _ DCH CELL_DCH state, the working carrier frequency of described Serving cell is
Refer to the auxiliary frequency that described subscriber equipment is used.
7. subscriber equipment as claimed in claim 6, it is characterised in that also include:
Persistent district frequency point information list acquisition module, is used for obtaining persistent district frequency point information list, described persistent district frequency
In dot information list, storage has the frequency point information of the community of the most resident mistake of described subscriber equipment；
Wherein, whether described detection module is by comprising described neighbor cell in inquiry described persistent district frequency point information list
Dominant frequency point and auxiliary frequency, detect whether to store the dominant frequency point of described neighbor cell and auxiliary frequency.
8. subscriber equipment as claimed in claim 7, it is characterised in that also include:
First more new module, for when described subscriber equipment enters CELL _ DCH CELL_DCH state, obtaining service little
The dominant frequency point in district and auxiliary frequency, and dominant frequency point and the auxiliary frequency of described Serving cell are updated to described persistent district frequency point information
In list.
9. subscriber equipment as claimed in claim 8, it is characterised in that also include:
Empty module, for periodically emptying the frequency point information list of described persistent district.
10. subscriber equipment as claimed in claim 6, it is characterised in that it is characterized in that, also include:
Judge module, for judging whether the quantity of the interfered cell in the list of described interfered cell exceedes predetermined threshold value M；
Rscp value acquisition module, is used for when the quantity of the interfered cell in the list of described interfered cell is more than M,
Obtain the rscp value of each described interfered cell；
Select module, for the rscp value of all described interfered cells is ranked up, select received signal code
M the interfered cell that performance number is minimum；
Second more new module, for using described M the interfered cell of selection to update the list of described interfered cell, after being updated
Interfered cell list.
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