CN103945429B

CN103945429B - A kind of method, equipment and system for determining co-channel interference source

Info

Publication number: CN103945429B
Application number: CN201410155511.0A
Authority: CN
Inventors: 覃华忠; 罗娜
Original assignee: Comba Telecom Technology Guangzhou Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2014-04-17
Filing date: 2014-04-17
Publication date: 2017-10-27
Anticipated expiration: 2034-04-17
Also published as: CN103945429A

Abstract

The present invention relates to communication technical field, more particularly to a kind of method, equipment and system for determining co-channel interference source.The method of the embodiment of the present invention includes：Base station sends the BCCH frequencies of the resident serving cell of terminal to terminal, so that terminal determines the BCCH frequency identical cells with serving cell；The BSIC for the specific cell that base station is reported according to the BCCH frequencies and terminal of serving cell determines that the co-channel interference source of base station, or the BSIC for the specific cell that the BCCH frequencies of serving cell are reported with terminal notify to give the Centralized Controller that base station is connected；Wherein, specific cell is the cell that BSIC identical and with serving cell from the BCCH frequencies of serving cell is different.Using this method, the co-channel interference source of base station can be accurately and rapidly determined.

Description

A kind of method, equipment and system for determining co-channel interference source

Technical field

The present invention relates to communication technical field, more particularly to a kind of method, equipment and system for determining co-channel interference source.

Background technology

With being on the increase for traffic demands amount, the quantity of the base station of deployment also gradually increases, however, due to that can divide The frequency resource matched somebody with somebody is limited, and different base station may use identical frequency.If two adjacent base stations use identical frequency, Stronger co-channel interference is then there may be, it is thus necessary to determine that the co-channel interference source of base station.

In the prior art, co-channel interference source is generally determined using Human disturbance source localization method, it implements process such as Under：

To the base station of be interfered serious or even call drop, tester arrives the tower top of the base station first or roof is carried out just The interference radiating way of step judges that is, tester carries out comprehensive signal scanning using scanner and directive antenna, will search Peak signal where direction orientate interference source direction as, then on the interference source direction of Primary Location carry out ground sweep Retouch, judge whether search direction is correct according to the power of signal, if signal is more and more stronger, illustrate that search direction is correct, then It is look for according to the direction of the Primary Location, untill signal intensity is constant, so that it is determined that interference source.

However, during interference source is determined by the above method, because the phenomenons such as refraction, the reflection of signal may be led Erroneous judgement is caused, tester needs to reposition the direction of interference source, and it is dry with final determination that said process is repeated several times Disturb source.

As can be seen here, there is the problem of interference source positions inaccurate and inefficiency in the above method of the prior art.

The content of the invention

The embodiments of the invention provide a kind of method, equipment and system for determining co-channel interference source, to solve existing skill Interference source present in art positions inaccurate and inefficiency problem.

A kind of method for determining co-channel interference source, methods described includes：

Base station sends the BCCH channel of broadcast control frequency of the resident serving cell of the terminal to terminal, so that the end End determines the BCCH frequency identical cells with the serving cell；

The BSIC for the specific cell that the base station is reported according to the BCCH frequencies and the terminal of the serving cell is determined The co-channel interference source of the base station, or the specific cell that the BCCH frequencies and the terminal of the serving cell are reported BSIC Notify to give the connected Centralized Controller in the base station, so that BCCH frequency of the Centralized Controller according to the serving cell The BSIC of the specific cell reported with the terminal determines the co-channel interference source of the base station；

Wherein, specific cell is identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell Cell.

Using such scheme, because terminal can report BCCH frequencies identical with serving cell, and BSIC and serving cell are not The BSIC of same specific cell, can accurately and rapidly determine the co-channel interference source of base station.

Alternatively, after the base station sends the BCCH frequencies of the serving cell to terminal, according to the serving cell BCCH frequencies and before the BSIC of specific cell that reports of the terminal determines the co-channel interference source of the base station, or will be described The BSIC for the specific cell that the BCCH frequencies of serving cell are reported with the terminal notifies to give the concentration control that the base station is connected Before device processed, in addition to：

The base station determines the BSIC that the BSIC that the terminal is reported is specific cell.

In this way, can to terminal determine screened with the BCCH frequency identical cells of serving cell, it is determined that BCCH frequencies are identical with serving cell, and the BSIC of specific cells different from serving cell BSIC.

Specifically, the specific cell that the base station is reported according to the BCCH frequencies and the terminal of the serving cell BSIC determines the co-channel interference source of the base station, specifically includes：

The base station determines the BCCH of the serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID The corresponding cell IDs of BSIC for the specific cell that frequency and the terminal are reported, and determine the corresponding cell of the cell ID For the co-channel interference source of the base station.

In this way, the co-channel interference source of base station can be determined accurately and rapidly.

Alternatively, before the base station sends the BCCH frequencies of the serving cell to terminal, in addition to：

The base station sends cell parameter configuring request, and matching somebody with somebody according to the Centralized Controller to the Centralized Controller Install the BCCH frequencies and BSIC of the serving cell.

The BCCH frequencies of the cell of base station and the unified of BSIC are configured in this way, can be realized by Centralized Controller, it is ensured that The BCCH frequencies and BSIC of the cell of base station are unique.

Specifically, the base station sends the BCCH frequencies of the serving cell to terminal, specifically includes：

The base station sends the BCCH frequencies of the serving cell to the terminal at the edge in the serving cell.

In this way, the BCCH frequency identical adjacent cells with serving cell can be searched out efficiently（That is co-channel interference source）.

Alternatively, the base station selects the terminal at the edge in the serving cell in the following manner：

Selection newly switches to the terminal of the serving cell；Or,

Downlink reception level value is selected to be less than the terminal of first threshold；Or,

Uplink receiving level value is selected to be less than the terminal of Second Threshold；Or,

Downlink reception level value is selected to be more than the terminal of the 4th threshold value more than the 3rd threshold value and downlink reception mass value；Or Person,

Uplink receiving level value is selected to be more than the terminal of the 6th threshold value more than the 5th threshold value and uplink receiving mass value；

The interference level value for selecting up idle frame to measure is more than the terminal of the 7th threshold value.

The BCCH frequencies of the serving cell are added in BCCH distribution BA2 tables by the base station is sent to the terminal.

In this way, easily the BCCH frequencies of serving cell can be notified to terminal, in order to which terminal detection is small with servicing The BCCH frequency identical cells in area.

Specifically, the base station determines the BSIC of specific cell in the following manner：

In BCCH frequencies and BSIC corresponding relation that the base station is reported from the terminal, specific cell is determined BSIC。

In this way, the BCCH frequencies and BSIC corresponding relation that can be reported according to terminal, determine the BSIC of specific cell.

The BCCH frequencies for the serving cell that the terminal that terminal receives base station transmission is resident；

The terminal determines the BCCH frequency identical cells with the serving cell, and by the BSIC for the cell determined The base station is reported, so that the specific cell that the base station is reported according to the BCCH frequencies and the terminal of the serving cell BSIC determine the co-channel interference source of the base station, or by the BCCH frequencies and the terminal of the serving cell report it is specific The BSIC of cell notifies to give the connected Centralized Controller in the base station, so that the Centralized Controller is according to the serving cell BCCH frequencies and the BSIC of specific cell that reports of the terminal determine the co-channel interference source of the base station；

Using the program, because terminal can report BCCH frequencies identical with serving cell, and BSIC is different from serving cell Specific cell BSIC, can accurately and rapidly determine the co-channel interference source of base station.

Alternatively, after the BCCH frequency identical cells of the terminal determination and the serving cell, by what is determined The BCCH frequencies and BSIC of cell are reported before the base station, in addition to：

The BSIC for the cell determined described in the terminal determination is the BSIC of specific cell.

Specifically, the BCCH frequencies for the serving cell that the terminal that terminal reception base station is sent is resident, are specifically included：

The terminal receives the BA2 tables that the base station is sent, wherein, the serving cell is included in the BA2 tables BCCH frequencies.

In this way, in the BA2 tables that can be issued from base station extract serving cell BCCH frequencies, in order to pair and serving cell BCCH frequency identical cells scan for.

Specifically, the BSIC for the cell determined is reported the base station by the terminal, is specifically included：

The corresponding relation of the BCCH frequencies for the cell determined and BSIC is reported the base station by the terminal.

In this way, can the BSIC that reports of signals base terminal be BSIC using which BCCH frequency point cell.

The specific cell that the terminal that Centralized Controller receives the base station transmission being connected with the Centralized Controller is reported BCCH frequencies and BSIC；

The specific cell that the Centralized Controller is reported according to the BCCH frequencies and the terminal of the serving cell BSIC determines the co-channel interference source of the base station；

Specifically, the Centralized Controller according to the BCCH frequencies and the terminal of the serving cell report it is specific small The BSIC in area determines the co-channel interference source of the base station, specifically includes：

The Centralized Controller determines the serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID BCCH frequencies and the corresponding cell IDs of BSIC of specific cell that report of the terminal, and determine the cell ID correspondence Cell be the base station co-channel interference source.

Alternatively, the Centralized Controller receives the BCCH frequencies for the serving cell that the base station is sent and the end Before the BSIC for holding the specific cell reported, in addition to：

The Centralized Controller receives the cell parameter for the cell ID comprising the serving cell that the base station is sent Configuring request；

The Centralized Controller configures BCCH frequencies and BSIC for the serving cell of the base station, and it is small to store the service The corresponding relation of the BCCH frequencies in area, BSIC and cell ID, wherein, the Centralized Controller is the serving cell of the base station The BCCH frequencies and BSIC of configuration are unique.

A kind of base station, the base station includes：

Sending module, the BCCH frequencies for sending the resident serving cell of the terminal to terminal, so that the terminal It is determined that the BCCH frequency identical cells with the serving cell；

Processing module, the BSIC of the specific cell reported for the BCCH frequencies and the terminal according to the serving cell Determine the co-channel interference source of the base station, or the specific cell that the BCCH frequencies and the terminal of the serving cell are reported BSIC notifies to give the connected Centralized Controller in the base station, so that BCCH of the Centralized Controller according to the serving cell The BSIC for the specific cell that frequency and the terminal are reported determines the co-channel interference source of the base station；Wherein, specific cell be with Identical and different from the BSIC of the serving cell cell of the BCCH frequencies of the serving cell.

Alternatively, the processing module is additionally operable to：

After the BCCH frequencies that the sending module sends the serving cell to the terminal, the processing module root The BSIC of the specific cell reported according to the BCCH frequencies and the terminal of the serving cell determines the co-channel interference of the base station Before source, or the BSIC for the specific cell that the BCCH frequencies and the terminal of the serving cell are reported notifies to give the base Stand before connected Centralized Controller, determine the BSIC that BSIC that the terminal is reported is specific cell.

Specifically, the processing module specifically for：

According to the corresponding relation of BCCH frequencies, BSIC and cell ID, BCCH frequencies and the institute of the serving cell are determined The corresponding cell IDs of BSIC for the specific cell that terminal is reported are stated, and determine that the corresponding cell of the cell ID is the base The co-channel interference source stood.

Alternatively, the base station also includes：

Configuration module, for before the BCCH frequencies that the sending module sends the serving cell to the terminal, Cell parameter configuring request is sent to the Centralized Controller, and sets the service small according to the configuration of the Centralized Controller The BCCH frequencies and BSIC in area.

Specifically, the sending module specifically for：

The BCCH frequencies of the serving cell are sent to the terminal at the edge in the serving cell.

Alternatively, the base station also includes：

Selecting module is used for the terminal at edge of the selection in the serving cell in the following manner：

Selection newly switches to the terminal of the serving cell；Or,

Specifically, the sending module specifically for：

The BCCH frequencies of the serving cell are added in BA2 tables and are sent to the terminal.

Specifically, the processing module specifically for determining the BSIC of specific cell in the following manner：

In the BCCH frequencies and BSIC corresponding relation that are reported from the terminal, the BSIC of specific cell is determined.

A kind of terminal, the terminal includes：

Receiving module, the BCCH frequencies for receiving the serving cell that the terminal of base station transmission is resident；

Processing module, for determine with the BCCH frequency identical cells of the serving cell, and by the cell determined BSIC reports the base station so that the base station according to the BCCH frequencies and the terminal of the serving cell report it is specific The BSIC of cell determines the co-channel interference source of the base station, or the BCCH frequencies and the terminal of the serving cell are reported The BSIC of specific cell notifies to give the connected Centralized Controller in the base station, so that the Centralized Controller is according to the service The BSIC for the specific cell that the BCCH frequencies and the terminal of cell are reported determines the co-channel interference source of the base station；Wherein, it is special Cell is determined for the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell.

Alternatively, the processing module is additionally operable to：

It is determined that after BCCH frequency identical cells with the serving cell, the BSIC for the cell determined is reported Before the base station, it is determined that the BSIC of the cell determined is the BSIC of specific cell.

Specifically, the receiving module specifically for：

The BA2 tables that the base station is sent are received, wherein, the BCCH frequencies of the serving cell are included in the BA2 tables.

Specifically, the processing module specifically for：

The corresponding relation of the BCCH frequencies for the cell determined and BSIC is reported into the base station.

A kind of Centralized Controller, the Centralized Controller includes：

Receiving module, the serving cell that the terminal that the base station being connected for receiving with the Centralized Controller is sent is resident The BSIC for the specific cell that BCCH frequencies and the terminal are reported；

Determining module, the BSIC of the specific cell reported for the BCCH frequencies and the terminal according to the serving cell Determine the co-channel interference source of the base station；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with it is described The cells different BSIC of serving cell.

Specifically, the determining module specifically for：

Alternatively, the Centralized Controller also includes：

Configuration module, for received in the receiving module serving cell that the base station is sent BCCH frequencies and Before the BSIC for the specific cell that the terminal is reported, the cell ID for including the serving cell that the base station is sent is received Cell parameter configuring request；BCCH frequencies and BSIC are configured for the serving cell of the base station, and stores the serving cell BCCH frequencies, the corresponding relation of BSIC and cell ID, wherein, the configuration module configures for the serving cell of the base station BCCH frequencies and BSIC it is unique.

A kind of system for determining co-channel interference source, the system includes base station, terminal and Centralized Controller, wherein：

The base station, the BCCH frequencies for sending the resident serving cell of the terminal to terminal；The service is small The BSIC for the specific cell that the BCCH frequencies in area are reported with the terminal notifies to give the Centralized Controller that the base station is connected；Its In, specific cell is the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell；

The terminal, the BCCH frequencies for receiving the serving cell that the base station is sent；It is determined that with the service The BCCH frequency identical cells of cell；The BSIC for the cell determined is reported into the base station；

The Centralized Controller, for the BCCH frequencies of the serving cell notified according to the base station and the terminal The BSIC of the specific cell reported determines the co-channel interference source of the base station.

The base station, the BCCH frequencies for sending the resident serving cell of the terminal to terminal；According to the service The BSIC for the specific cell that the BCCH frequencies and the terminal of cell are reported determines the co-channel interference source of the base station；Wherein, it is special Cell is determined for the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell；

The Centralized Controller, BCCH frequencies and BSIC are configured for the serving cell for the base station, and will be with The corresponding relation of the BCCH frequencies of the cell of the connected each base station of the Centralized Controller, BSIC and cell ID is handed down to each base Stand；Wherein, the BCCH frequencies and BSIC that the Centralized Controller configures for the serving cell of the base station are unique.

A kind of system for determining co-channel interference source, the system includes base station and terminal, wherein：

The terminal, the BCCH frequencies for receiving the serving cell that the base station is sent；It is determined that with the service The BCCH frequency identical cells of cell；The BSIC for the cell determined is reported into the base station.

Brief description of the drawings

Fig. 1 is the method and step schematic diagram of determination co-channel interference source in the embodiment of the present invention one；

The schematic diagram that Fig. 2 is connected for Centralized Controller in the embodiment of the present invention one with multiple base stations；

Fig. 3 is the concrete application flow chart of determination co-channel interference source in the embodiment of the present invention one；

Fig. 4 is another concrete application flow chart of determination co-channel interference source in the embodiment of the present invention one；

Fig. 5 is the method and step schematic diagram of determination co-channel interference source in the embodiment of the present invention two；

Fig. 6 is the method and step schematic diagram of determination co-channel interference source in the embodiment of the present invention three；

Fig. 7 is the structural representation of base station in the embodiment of the present invention four；

Fig. 8 is the structural representation of terminal in the embodiment of the present invention five；

Fig. 9 is the structural representation of Centralized Controller in the embodiment of the present invention six；

Figure 10 is the structural representation of the system of determination co-channel interference source in the embodiment of the present invention seven；

Figure 11 is the structural representation of the system of determination co-channel interference source in the embodiment of the present invention eight；

Figure 12 is the structural representation of the system of determination co-channel interference source in the embodiment of the present invention nine.

Embodiment

The scheme of the embodiment of the present invention passes through the BCCH for the serving cell for determining to be resident with terminal（BCCH, Broadcast Control Channel）Frequency is identical and Base transceiver Station Identity Code（BSIC, Base transceiver Station Identity Code）Different specific cells, the co-channel interference of base station is determined according to the BCCH frequencies and BSIC of specific cell Source, can accurately and rapidly determine the co-channel interference source of base station.

With reference to Figure of description, embodiments of the present invention is further illustrated, but the present invention be not limited to it is following Embodiment.

Embodiment one：

As shown in figure 1, determining that the method for co-channel interference source comprises the following steps in the embodiment of the present invention one：

Step 101：Base station sends the BCCH frequencies of the resident serving cell of the terminal to terminal；

Step 102：The BSIC for the specific cell that base station is reported according to the BCCH frequencies and terminal of serving cell determines the base The co-channel interference source stood, or the base station BSIC of specific cell that reports the BCCH frequencies and the terminal of serving cell notify to The Centralized Controller being connected with the base station.

Wherein, specific cell is the cell that BSIC identical and with serving cell from the BCCH frequencies of serving cell is different.

Wherein, the cell parameter information such as BCCH frequencies and BSIC of the cell of base station can be by the concentration control that is connected with the base station Device processed is unified to be configured.Specifically, base station can send the cell ID for including above-mentioned serving cell to Centralized Controller（CI, Cell Identity）Cell parameter configuring request, Centralized Controller receive the base station transmission cell parameter configuring request after, Can be serving cell configuration BCCH frequencies and BSIC, and store BCCH frequencies, BSIC and the cell ID of the serving cell Corresponding relation.Base station is after Centralized Controller is received for the BCCH frequencies and BSIC of serving cell configuration, you can setting should The BCCH frequencies and BSIC of serving cell.

It should be noted that the Centralized Controller in scheme of the embodiment of the present invention can connect multiple base stations, and it is base station Cell distributes BCCH frequencies and BSIC, is illustrated in figure 2 Centralized Controller and multiple base stations（Such as 1~base station of base station 6）Connected Schematic diagram.Wherein, in order to avoid the minizone of same base station has stronger interference, Centralized Controller is the multiple of base station The BCCH frequencies of cell distribution are differed.However, because frequency resource is limited, Centralized Controller is the small differentiation of two base stations The BCCH frequencies matched somebody with somebody may be identical, but for two cells of two base stations, the BCCH distributed if above-mentioned two cell Frequency is identical, then the BSIC differences distributed for above-mentioned two cell, that is, it is the cell configuration of base station to ensure Centralized Controller BCCH frequencies and BSIC are unique.Centralized Controller can store the base after the cell configuration BCCH frequencies and BSIC for base station The corresponding relation of the BCCH frequencies of the cell stood, BSIC and cell ID.Alternatively, Centralized Controller will can be connected with itself The corresponding relation of the BCCH frequencies of the cell of each base station, BSIC and cell ID is handed down to each base station.

If it should be noted that the BCCH frequencies and BSIC of the cell for the base station being connected with Centralized Controller occur more Newly, then the base station need to notify the BCCH frequencies and BSIC of the cell after renewal to Centralized Controller, to ensure Centralized Controller The corresponding relation of the BCCH frequencies of middle storage, BSIC and cell ID is newest.If Centralized Controller is detected and itself Connected base station is disconnected, then is deleted the corresponding relation of the BCCH frequencies, BSIC and cell ID of the cell of the base station.

Alternatively, base station can first intercept adjacent base station before cell parameter configuring request is sent to Centralized Controller BCCH frequencies and BSIC used in cell, and BCCH frequencies and BSIC used in the cell of the adjacent base station listened to are led to Know to Centralized Controller, BCCH frequencies and BSIC reference information are distributed for the cell of the base station as Centralized Controller.For example, Centralized Controller can be the base after BCCH frequencies used in the cell for the adjacent base station that base station is listened to and BSIC is received The cell stood distributes the different BCCH frequencies of cell of the adjacent base station from listening to, and is disturbed with reducing adjacent area.

Alternatively, base station can be informed the geographical location information of itself to centralized Control by cell parameter configuring request Device, then Centralized Controller can determine that the particular location of the base station where the corresponding cell of cell ID.Wherein, the geographical position of base station Confidence breath can be by installing global positioning system in a base station（GPS, Global Positioning System）Obtain Arrive.

Alternatively, base station can be under the control and intervention of Centralized Controller, the BCCH frequencies and BSIC of complete independently cell Configuration, its specific implementation can be：Base station when it is determined that needing the cell configuration BCCH frequencies and BSIC for itself, to Centralized Controller sends the cell parameter configuring request of the cell ID comprising the cell；Centralized Controller is receiving the base station After the cell parameter configuring request of transmission, by the BCCH frequencies, BSIC and cell ID of the cell of each base station itself stored Corresponding relation is handed down to the base station；The base station is receiving BCCH frequencies, BSIC and cell ID that Centralized Controller is issued After corresponding relation, for cell configuration BCCH frequencies and BSIC, wherein, base station for cell configuration BCCH frequencies and BSIC only One.Afterwards, base station can will be configured with the corresponding relation of the BCCH frequencies, BSIC and cell ID of the cell of BCCH frequencies and BSIC Report Centralized Controller.

In step 101, the resident serving cell of terminal is the cell of terminal access.Base station is according to Centralized Controller It is configured to the serving cell to set after BCCH frequencies and BSIC, the BCCH frequencies of the serving cell can be sent to and reside in the clothes The terminal for cell of being engaged in.Specifically, base station can be notified the BCCH frequencies of serving cell to terminal by a special signaling, with Instruction terminal determines the BCCH frequency identical cells with the serving cell.Terminal is receiving the BCCH frequencies of the serving cell Afterwards, it may be determined that the BCCH frequency identical cells with the serving cell.

If the terminal determine that what is gone out determines with the BCCH frequency identicals cell of serving cell for specific cell, i.e. terminal The BCCH frequency identical cells from serving cell BSIC it is different with the BSIC of serving cell, expression currently there is adjacent cell to make With with serving cell identical BCCH frequencies, and the adjacent cell signal intensity be more than serving cell signal intensity, the determination The specific cell gone out is BCCH frequency identical adjacent cells with serving cell, that is, base station co-channel interference source.This is Because for a BCCH frequency, terminal can only detect the signal intensity most strong cell using the BCCH frequencies.

If the terminal determine that it is not specific cell with the BCCH frequency identical cells of serving cell to go out, i.e., terminal is determined It is going out identical with the BSIC of serving cell with the BSIC of serving cell BCCH frequencies identical cell, represent small currently without neighbour Area use with serving cell identical BCCH frequencies, even if or have adjacent cell use with serving cell identical BCCH frequencies, The signal intensity of the adjacent cell is less than the signal intensity of serving cell, and interference of the adjacent cell to serving cell is smaller.

In order to efficiently search out the BCCH frequency identical adjacent cells with serving cell（That is co-channel interference source）, base The BCCH frequencies of the serving cell can be sent to the terminal at the edge in serving cell by standing.Because, in serving cell Edge terminal searching to the BCCH frequency identical adjacent cells with serving cell possibility it is bigger.

Specifically, base station can select the terminal at the edge in above-mentioned serving cell in the following manner：

Mode one：Selection newly switches to the terminal of the serving cell.

Mode two：Downlink reception level value is selected to be less than the terminal of first threshold.

Wherein, downlink reception level value be less than downstream signal that the base station that first threshold represents that terminal receives sends compared with Weak, terminal is in the edge of serving cell by adjacent cell serious interference, terminal.

Mode three：Uplink receiving level value is selected to be less than the terminal of Second Threshold.

Wherein, uplink receiving level value is less than Second Threshold, represent upward signal that the terminal that receives of base station sends compared with Weak, terminal is in the edge of serving cell by adjacent cell serious interference, terminal.

Mode four：Downlink reception level value is selected to be more than the end of the 4th threshold value more than the 3rd threshold value and downlink reception mass value End.

Wherein, downlink reception level value is more than the 3rd threshold value and downlink reception mass value is more than the 4th threshold value, represents terminal The effect for receiving the downstream signal that base station is sent is poor, and terminal is in the edge of serving cell by adjacent cell serious interference, terminal.

Mode five：Uplink receiving level value is selected to be more than the end of the 6th threshold value more than the 5th threshold value and uplink receiving mass value End.

Wherein, uplink receiving level value is more than the 5th threshold value and uplink receiving mass value is more than the 6th threshold value, represents base station The effect for the upward signal that receiving terminal is sent is poor, and terminal is in the edge of serving cell by adjacent cell serious interference, terminal.

Mode six：The interference level value for selecting up idle frame to measure is more than the terminal of the 7th threshold value.

Because terminal in idle frame will not send data, therefore, base station idle frame receipt to signal be interference letter Number, the received signal level value as interference level value measured in idle frame.Base station is big in the interference level value that idle frame is measured Represent base station by adjacent cell serious interference in the 7th threshold value, handled according to uplink downlink approximately equal principle, then terminal by Adjacent cell serious interference, terminal is in the edge of serving cell.

Specifically, above-mentioned terminal can carry out circuit switching（CS, Circuit Switched）Business（Such as voice industry Business）Mobile terminal.Wherein, above-mentioned downlink reception level value and downlink reception mass value can be from the measurement reports that terminal is reported Obtain, uplink receiving level value and uplink receiving mass value can be obtained from the measurement report of base station.

Wherein, it is specially received signal level to receive level value（RXLEV, Received Signal Quality）Value, What is reflected is the power of the signal received.The power for receiving the signal that level value is bigger, and expression is received is bigger.The quality of reception Value is specially received signal quality（RXQUAL, Received Signal Quality）Grade point.Reception quality value is bigger, The bit error rate is higher, represents that signal quality is poorer.For example, RXQUAL=3 when, the bit error rate is 0.8%~1.6%；During RXQUAL=4, by mistake Code check is 1.6%~3.2%.

The threshold value of above-mentioned first threshold~the 7th can be set according to actual conditions, for example, can be according to the demodulation of hardware Ability, residing wireless environment etc. are determined.In a specific embodiment, first threshold can be set as -95dBm, the second threshold It is that -75dBm, the 4th threshold value are 5 to be worth for -90dBm, the 3rd threshold value（I.e. the bit error rate is 3.2%~6.4%）, the 5th threshold value for- 70dBm, the 6th threshold value are that the 5, the 7th threshold value is -90dBm.

It should be noted that base station is in the terminal at edge of the selection in above-mentioned serving cell in the manner described above, can Made decisions based on instantaneous measurement report, the measurement report that may be based in preset time period makes decisions.For example, with Exemplified by mode two, current downlink may be selected and receives the terminal that level value is less than first threshold, also may be selected in preset time period Downlink reception level value is respectively less than the terminal of first threshold, and being averaged in preset time period downlink reception level value also may be selected Value is less than the terminal of first threshold, and the scheme of the embodiment of the present invention is limited not to this.

Alternatively, the covering half for the serving cell that base station can be also resident according to the distance between terminal and base station and terminal The terminal at footpath edge of the selection in serving cell.For example, the distance between optional and base station is more than a pre-determined distance threshold value And the terminal of the covering radius less than serving cell.

Base station can send the BCCH frequencies of serving cell by special signaling after terminal is selected to terminal, to refer to Show that terminal determines the BCCH frequency identical cells with the serving cell.

The terminal for receiving the BCCH frequencies for the serving cell that base station is issued is determining the BCCH frequencies with serving cell After identical cell, the BSIC for the cell determined directly can be reported into base station, without the BSIC for the cell for judging to determine It is whether different from the BSIC of serving cell；Also can it is determined that the BSIC for the cell that the terminal is determined be specific cell BSIC （Determine that the BSIC for the cell that the terminal is determined is different from the BSIC of serving cell）Afterwards, by the BSIC for the cell determined Base station is offered, if the terminal determine that the BSIC of the cell gone out is not the BSIC of specific cell, then the cell determined is not reported BSIC.Wherein, the cell that terminal is determined is the BCCH frequency identical cells with serving cell that terminal is determined.

Based on this, if terminal will directly be determined after the BCCH frequency identical cells with serving cell are determined The BSIC of cell report base station, then base station need to judge that what terminal reported determines after the BSIC that terminal is reported is received Cell BSIC whether be specific cell BSIC（Judge BSIC that terminal reports whether with the BSIC of serving cell not Together）, if so, then performing step 102；Otherwise, it is determined that do not find the co-channel interference source of base station, can return to step 101.

If terminal only after it is determined that the BSIC for the cell that the terminal is determined is the BSIC of specific cell, just reports determination The BSIC of the cell gone out, then base station after the BSIC for the cell determined that terminal is reported is received, directly perform step 102, If base station does not receive the BSIC for the cell determined that terminal is reported in preset time period, it is determined that do not find base station Co-channel interference source, can return to step 101.

Alternatively, no matter terminal is the BSIC for directly reporting the cell determined, or terminal is it is determined that the terminal is determined The BSIC of the cell gone out is the BSIC that the cell determined just is reported after the BSIC of specific cell, and base station is reported receiving terminal The cell determined BSIC after, whether the BSIC for judging the cell determined that terminal is reported is specific cell BSIC, if so, then performing step 102；Otherwise, it is determined that do not find the co-channel interference source of base station, can return to step 101.

Alternatively, base station is after terminal is selected, and the BCCH frequencies for the serving cell that can be resident terminal are added to BA2 （BA：BCCH Allocation, BCCH distribution）Pass through slow associated control channel in table（SACCH, Slow Associated Control Channel）It is sent to terminal.

Terminal pair can be carried out after the BA2 tables that base station is issued are received with the BCCH frequency identicals cell of serving cell Detection, it is determined that the BCCH frequency identical cells with serving cell.

It should be noted that in BA2 tables in addition to the BCCH frequencies comprising serving cell, can also include other BCCH frequencies Point, terminal can be detected, and report signal after the BA2 tables that base station is issued are received to each BCCH frequencies in BA2 tables The BCCH frequencies of intensity most strong six cells, BSIC and receive level value.Wherein, for a BCCH frequency, terminal only can Detect the signal intensity most strong cell using the BCCH frequencies.Therefore, in order to ensure that terminal can be reported and serving cell BCCH frequency identical cells BCCH frequencies and BSIC, 6 BCCH frequencies are contained up in the BA2 tables that base station is issued to terminal The BCCH frequencies of serving cell are included in point, and the BA2 tables.

Specifically, terminal is after the BCCH frequency identical cells with serving cell are determined, the BA2 that can be issued in base station The position of the BCCH frequencies of corresponding with service cell in table, fills in determining with serving cell BCCH frequencies identical cell BSIC, and BA2 tables after will fill in by SACCH channels report base station, i.e. terminal report determine with serving cell The BCCH frequencies of BCCH frequency identical cells and BSIC corresponding relation.Alternatively, terminal is only it is determined that the terminal is determined The BSIC of the cell gone out is the BSIC of specific cell（Determine the BSIC for the cell that the terminal the is determined and BSIC of serving cell It is different）When, just report the BCCH frequencies for the cell determined and BSIC corresponding relation.

Wherein, the BCCH frequencies that terminal is reported are specially absolute frequency point number（ARFCN, Absolute Radio Frequency Number）.

Based on this, in BCCH frequencies and BSIC corresponding relation that base station can be reported from terminal, specific cell is determined BSIC.Specifically, the BCCH frequency identical BCCH frequencies pair with serving cell are searched in the BA2 tables that base station can be reported from terminal The BSIC answered, and judge whether the BSIC found is different from the BSIC of serving cell, if it is different, then performing step 102；It is no Then, it is determined that do not find the co-channel interference source of base station, can return to step 101.

If terminal only after it is determined that the BSIC for the cell that the terminal is determined is the BSIC of specific cell, just reports determination Searched and serving cell in the BCCH frequencies and BSIC corresponding relation of the cell gone out, then the BA2 tables that base station can be reported from terminal The corresponding BSIC of BCCH frequency identical BCCH frequencies, if can find, perform step 102；Otherwise, it is determined that do not have The co-channel interference source of base station is found, step 101 is can return to.

In step 102, the BSIC for the specific cell that base station is reported according to the BCCH frequencies and terminal of serving cell determines base The co-channel interference source stood, is specifically included：

Base station determines BCCH frequencies and the end of serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID The corresponding cell IDs of BSIC of the specific cell reported are held, and determine the same frequency that the corresponding cell of the cell ID is the base station Interference source.Wherein, the corresponding relation of the BCCH frequencies of the cell for each base station being connected with Centralized Controller, BSIC and cell ID It is handed down to each base station in advance by Centralized Controller.

Alternatively, the BSIC for the specific cell that base station can report the BCCH frequencies and terminal of serving cell notifies to give base Stand connected Centralized Controller.Specifically, base station can send BCCH frequencies and terminal comprising serving cell to Centralized Controller The BSIC of the specific cell reported Location Request.Centralized Controller, can basis after the Location Request of base station transmission is received The BSIC for the specific cell that the BCCH frequencies and terminal of serving cell are reported determines the co-channel interference source of base station.Specifically, concentrate Controller can be determined on the BCCH frequencies and terminal of serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID The corresponding cell IDs of BSIC of the specific cell of report, and determine the co-channel interference that the corresponding cell of the cell ID is base station Source.

The scheme of the embodiment of the present invention is illustrated with two specific examples below.

As shown in figure 3, in scheme of the embodiment of the present invention determine co-channel interference source method concrete application flow include with Lower step：

Step 301：It is electric on base station, send cell parameter configuring request to Centralized Controller.

Wherein, the cell ID of the serving cell of base station is included in cell parameter configuring request, alternatively, cell parameter is matched somebody with somebody Put the geographical location information that base station is also included in request.

Step 302：Centralized Controller configures BCCH frequencies and BSIC for the serving cell of the base station.

Specifically, Centralized Controller can send cell parameter configuration response to base station, wherein, in cell parameter configuration response The BCCH frequencies and BSIC configured comprising Centralized Controller for the serving cell of the base station.

After BCCH frequencies and BSIC are configured for the serving cell of base station, the service that Centralized Controller stores the base station is small The corresponding relation of the BCCH frequencies in area, BSIC and cell ID.Alternatively, Centralized Controller can store the serving cell of the base station BCCH frequencies, BSIC, the corresponding relation of cell ID and the geographical location information of base station.

Step 303：Base station sets the BCCH frequencies and BSIC of serving cell according to the configuration of Centralized Controller.

Step 304：The terminal at the base station selected edge in serving cell.

Step 305：The BCCH frequencies of serving cell are sent to the terminal selected by base station.

Step 306：Terminal determine with the BCCH frequency identical cells of serving cell, report the cell determined BSIC。

Wherein it is determined that the BCCH frequencies of the cell gone out are identical with the BCCH frequencies of serving cell.

Step 307：Base station judge the cell determined that terminal is reported BSIC whether be specific cell BSIC, if It is then to go to step 308；Otherwise, step 310 is gone to.

Wherein, base station judge the cell determined that terminal is reported BSIC whether be specific cell BSIC, that is, Base station judge the BCCH frequency identical cells of the BCCH frequencies that terminal reports and serving cell BSIC whether with serving cell BSIC it is different, if it is different, represent that the cell that terminal is determined is the BCCH frequency identical adjacent cells with serving cell, It is exactly the co-channel interference source of base station.

Step 308：Base station notifies the BSIC that the BCCH frequencies and terminal of serving cell are reported to Centralized Controller.

Step 309：The BSIC that Centralized Controller is reported according to the BCCH frequencies and terminal of serving cell determines the same of base station Frequency interference source, flow terminates.

Specifically, Centralized Controller determines serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID The corresponding cell IDs of BSIC that BCCH frequencies and terminal are reported, and determine the same frequency that the corresponding cell of the cell ID is base station Interference source.

Step 310：Base station determines not finding the co-channel interference source of base station, return to step 304.

Alternatively, in step 302, Centralized Controller can by the BCCH frequencies of the cell for each base station being connected with itself, The corresponding relation of BSIC and cell ID is handed down to each base station.Based on this, in step 308, base station can be directly according to serving cell BCCH frequencies and the BSIC that reports of terminal determine the co-channel interference source of base station, without by the BCCH frequencies of serving cell and The BSIC that terminal is reported reports Centralized Controller.

Alternatively, in step 306, terminal is reported before the BSIC for the cell determined, can first judge the cell determined BSIC whether be the BSIC of specific cell, if so, then reporting the BSIC for the cell determined；If it is not, not reporting determination then The BSIC of the cell gone out.Based on this, in step 307, base station can not judge the cell determined that terminal is reported BSIC whether For the BSIC of specific cell, and step 308 is directly performed, if base station does not receive the determination that terminal is reported in preset time period The BSIC of the cell gone out, it is determined that do not find the co-channel interference source of base station, return to step 304.

Alternatively, even if terminal only reports BSIC identical and with serving cell from the BCCH frequencies of serving cell different The BSIC of cell, base station can also determine whether whether the BSIC for the cell determined that terminal is reported is specific cell BSIC。

As shown in figure 4, determining another concrete application flow bag of the method for co-channel interference source in scheme of the embodiment of the present invention Include following steps：

Step 401：It is electric on base station, send cell parameter configuring request to Centralized Controller.

Step 402：Centralized Controller configures BCCH frequencies and BSIC for the serving cell of the base station.

Specifically, Centralized Controller can send cell parameter configuration response to base station, wherein, in cell parameter configuration response Include serving cell configuration BCCH frequency and BSIC of the Centralized Controller for the base station.

Step 403：Base station sets the BCCH frequencies and BSIC of serving cell according to the configuration of Centralized Controller.

Step 404：The terminal at the base station selected edge in serving cell.

Step 405：The BCCH frequencies of serving cell are configured in BA2 tables by base station, are handed down to the terminal selected.

Step 406：Terminal determines the BCCH frequency identical cells with serving cell, reports the BCCH for the cell determined The corresponding relation of frequency and BSIC.

Wherein it is determined that the BCCH frequencies of the cell gone out are identical with the BCCH frequencies of serving cell.Specifically, terminal can be in base The position of the BCCH frequencies of corresponding with service cell in the BA2 tables that station is issued, fills in determining with serving cell BCCH frequencies The BSIC of identical cell, and BA2 tables after will fill in report base station.

Step 407：Base station judge the cell determined that terminal is reported BSIC whether be specific cell BSIC, if It is then to go to step 408；Otherwise, step 410 is gone to.

Specifically, the BCCH frequency identicals BCCH frequencies with serving cell are searched in the BA2 tables that base station can be reported from terminal The corresponding BSIC of point, and judge whether the BSIC found is different from the BSIC of serving cell, if it is different, then going to step 408； If identical, step 410 is gone to.

Step 408：The BSIC for the specific cell that base station reports the BCCH frequencies and terminal of serving cell reports concentration Controller.

Alternatively, the BCCH frequencies for the specific cell that base station reports terminal and BSIC corresponding relation report concentration control Device processed.

Step 409：The BSIC for the specific cell that Centralized Controller is reported according to the BCCH frequencies and terminal of serving cell is true Determine the co-channel interference source of base station, flow terminates.

Step 410：Base station determines not finding the co-channel interference source of base station, return to step 404.

Alternatively, in step 402, Centralized Controller can by the BCCH frequencies of the cell for each base station being connected with itself, The corresponding relation of BSIC and cell ID is handed down to each base station.Based on this, in step 408, base station can be directly according to serving cell BCCH frequencies and the BSIC that reports of terminal determine the co-channel interference source of base station, without by the BCCH frequencies of serving cell and The BSIC that terminal is reported reports Centralized Controller.

Alternatively, in step 406, terminal is reported before the BCCH frequencies for the cell determined and BSIC corresponding relation, It can first judge whether the BSIC for the cell determined is the BSIC of specific cell, if so, then reporting the BCCH for the cell determined The corresponding relation of frequency and BSIC；If it is not, not reporting the BCCH frequencies for the cell determined and BSIC corresponding relation then.Base In this, the BCCH frequency identicals BCCH frequencies with serving cell are searched in step 407, in the BA2 tables that base station can be reported from terminal The corresponding BSIC of point, if can find, goes to step 408；If searched less than going to step 410.

Alternatively, even if terminal only reports BSIC identical and with serving cell from the BCCH frequencies of serving cell different The BCCH frequencies and BSIC corresponding relation of cell, base station can also determine whether the BSIC for the cell determined that terminal is reported Whether be specific cell BSIC（The BCCH frequencies with serving cell that i.e. base station is found in judging the BA2 tables reported from terminal The corresponding BSIC of point identical BCCH frequencies, if different from the BSIC of serving cell）.

Embodiment two：

The present embodiment two is a kind of method for the determination co-channel interference source for belonging to same inventive concept with embodiment one, therefore The implementation of embodiment two may refer to the implementation of embodiment one, repeats part and repeats no more.

As shown in figure 5, determining that the method for co-channel interference source comprises the following steps in the embodiment of the present invention two：

Step 501：The BCCH frequencies for the serving cell that the terminal that terminal receives base station transmission is resident；

Step 502：Terminal determine with the BCCH frequency identical cells of the serving cell, and by the cell determined BSIC reports base station.

Wherein, the BCCH according to serving cell is understood in base station after the BSIC for the cell determined that terminal is reported is received The BSIC for the specific cell that frequency terminal is reported determines the co-channel interference source of base station；Or by the BCCH frequency terminals of serving cell The BSIC notices of the specific cell of report give the connected Centralized Controller in the base station, afterwards, and Centralized Controller can be small according to servicing The BSIC for the specific cell that the BCCH frequency terminals in area are reported determines the co-channel interference source of base station.Specific cell is and serving cell The cell that BCCH frequencies are identical and BSIC of from serving cell is different.

Alternatively, terminal is it is determined that after BCCH frequency identical cells with serving cell, by the cell determined BSIC is reported before base station, and the BSIC that can first determine the BCCH frequency identical cells with serving cell that terminal is determined is The BSIC of specific cell.

If the terminal determine that the BSIC of the BCCH frequency identical cells with serving cell gone out is the BSIC of specific cell, That is the BSIC of the BCCH frequency identical cells from serving cell that terminal is determined is different with the BSIC of serving cell, represents to work as Before have adjacent cell use with serving cell identical BCCH frequencies, and the adjacent cell signal intensity be more than serving cell signal The same frequency of intensity, BCCH frequency identical adjacent cell of the specific cell determined as with serving cell, that is, base station Interference source.Because, for a BCCH frequency, terminal can only detect most strong using the signal intensity of the BCCH frequencies Cell.

If the terminal determine that the BSIC of the BCCH frequency identical cells with serving cell gone out is not specific cell The BSIC for the BCCH frequency identical cells with serving cell that BSIC, i.e. terminal are determined is identical with the BSIC of serving cell, Represent currently without adjacent cell use with serving cell identical BCCH frequencies, even if or have adjacent cell use and serving cell Identical BCCH frequencies, the signal intensity of the adjacent cell is less than the signal intensity of serving cell, and the adjacent cell is to serving cell Interference is smaller.

If terminal is after the BCCH frequency identical cells with serving cell are determined, directly by the cell determined BSIC report base station, then base station need to judge the cell determined that terminal is reported after the BSIC that terminal is reported is received BSIC whether be specific cell BSIC（Judge whether the BSIC that terminal is reported is different from the BSIC of serving cell）If, base Station judges that the BSIC for the cell determined that terminal is reported is the BSIC of specific cell, then according to the BCCH frequencies of serving cell The BSIC of the specific cell reported with terminal determines the co-channel interference source of base station；Or by the BCCH frequencies and terminal of serving cell The BSIC of the specific cell of report notifies to give the connected Centralized Controller in the base station.If base station judges that what terminal reported determines Cell BSIC be not specific cell BSIC, it is determined that do not find the co-channel interference source of base station.

If terminal only after it is determined that the BSIC for the cell that the terminal is determined is the BSIC of specific cell, will just be determined The BSIC of cell report base station, then base station is after the BSIC for the cell determined that terminal is reported is received, direct basis The BSIC for the specific cell that the BCCH frequencies and terminal of serving cell are reported determines the co-channel interference source of base station；Or by serving cell The BSIC of specific cell that is reported with terminal of BCCH frequencies notify to give the Centralized Controller that the base station is connected.If base station exists The BSIC for the cell determined that terminal is reported is not received in preset time period, it is determined that do not find the co-channel interference of base station Source.

Alternatively, no matter terminal is the BSIC for directly reporting the cell determined, or terminal is it is determined that the terminal is determined The BSIC of the cell gone out is the BSIC that the cell determined just is reported after the BSIC of specific cell, and base station is reported receiving terminal The cell determined BSIC after, whether the BSIC for judging the cell determined that terminal is reported is specific cell BSIC, if base station judges that the BSIC for the cell determined that terminal is reported is the BSIC of specific cell, according to serving cell BCCH frequencies and the BSIC of specific cell that reports of terminal determine the co-channel interference source of base station；Or by the BCCH of serving cell frequently The BSIC for the specific cell that point is reported with terminal notifies to give the Centralized Controller that the base station is connected.

Alternatively, the BCCH frequencies for the serving cell that terminal can be resident by base station are added in BA2 tables by SACCH channels It is sent to terminal.Terminal after the BA2 tables for the BCCH frequencies comprising serving cell that base station is issued are received, can pair with service it is small The BCCH frequency identical cells in area are detected, it is determined that the BCCH frequency identical cells with serving cell.

Specifically, terminal is after the BCCH frequency identical cells with serving cell are determined, the BA2 that can be issued in base station The position of the BCCH frequencies of corresponding with service cell in table, fills in determining with serving cell BCCH frequencies identical cell BSIC, and BA2 tables after will fill in report base station, i.e. terminal by SACCH channels and will determine and serving cell The BCCH frequencies of BCCH frequency identical cells and BSIC corresponding relation report base station.Alternatively, terminal only it is determined that The BSIC for the cell that the terminal is determined is the BSIC of specific cell（Determine BSIC and the service for the cell that the terminal is determined The BSIC of cell is different）When, just report it is determining with serving cell BCCH frequencies identical cell BCCH frequencies and BSIC corresponding relation.

Embodiment three：

The present embodiment three is a kind of method for the determination co-channel interference source for belonging to same inventive concept with embodiment one, therefore The implementation of embodiment three may refer to the implementation of embodiment one, repeats part and repeats no more.

As shown in fig. 6, determining that the method for co-channel interference source comprises the following steps in the embodiment of the present invention three：

Step 601：Centralized Controller receives the serving cell that the terminal for the base station transmission being connected with Centralized Controller is resident BCCH frequencies and the BSIC of specific cell that reports of terminal；

Step 602：The BSIC for the specific cell that Centralized Controller is reported according to the BCCH frequencies and terminal of serving cell is true Determine the co-channel interference source of base station.

Wherein, the BCCH frequencies for the serving cell that specific BSIC is with terminal is resident are identical and BSIC with the serving cell Different cells.

In step 601, the BCCH frequencies and terminal comprising serving cell that Centralized Controller can receive base station transmission are reported Specific cell BSIC Location Request.

The specific implementation of step 602 can be：

Centralized Controller determines the BCCH frequencies of serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID Point cell ID corresponding with the BSIC for the specific cell that terminal is reported, and determine that the corresponding cell of the cell ID is base station Co-channel interference source.

Wherein, Centralized Controller can connect multiple base stations, and be the cell distribution BCCH frequencies and BSIC of each base station.Specifically Ground, Centralized Controller can receive the cell parameter configuring request of the cell ID comprising serving cell of base station transmission, for the base The serving cell configuration BCCH frequencies and BSIC stood, and store pair of BCCH frequencies, BSIC and the cell ID of the serving cell It should be related to.Wherein, Centralized Controller is that BCCH frequencies and BSIC that the serving cell is configured are unique, i.e., in the absence of two cells BCCH frequencies and BSIC all identical situations.

Alternatively, if base station informs the geographical location information of itself to centralized Control by cell parameter configuring request Device, then Centralized Controller can store the geographical position of BCCH frequencies, BSIC, cell ID and the base station of the serving cell of the base station The corresponding relation of information.Based on this, in step 602, Centralized Controller can determine that the specific position of the base station where co-channel interference source Put.

Example IV：

The present embodiment four is a kind of base station for belonging to same inventive concept with embodiment one, therefore the implementation of example IV can Repeated no more with referring to the implementation of embodiment one, repeating part.

As shown in fig. 7, the base station includes：

Sending module 71 is used for the BCCH frequencies that the resident serving cell of the terminal is sent to terminal, so that the terminal It is determined that the BCCH frequency identical cells with the serving cell.

Processing module 72 is used for the specific cell reported according to the BCCH frequencies and the terminal of the serving cell BSIC determines the co-channel interference source of the base station, or by the BCCH frequencies and the terminal of the serving cell report it is specific small The BSIC in area notifies to give the connected Centralized Controller in the base station, so that the Centralized Controller is according to the serving cell The BSIC for the specific cell that BCCH frequencies and the terminal are reported determines the co-channel interference source of the base station；Wherein, specific cell For the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell.

Alternatively, the processing module 72 is additionally operable to：In the sending module 71 clothes are sent to the terminal After the BCCH frequencies for cell of being engaged in, the BSIC of the specific cell reported according to the BCCH frequencies and the terminal of the serving cell Before the co-channel interference source for determining the base station, or by the BCCH frequencies and the terminal of the serving cell report it is specific small The BSIC notices in area are given before the connected Centralized Controller in the base station, determine the cell determined that the terminal is reported BSIC is the BSIC of specific cell.

Specifically, the processing module 72 specifically for：

Alternatively, the base station also includes：

Configuration module 73 be used for the sending module 71 to the terminal send the serving cell BCCH frequencies it Before, cell parameter configuring request is sent to the Centralized Controller, and the clothes are set according to the configuration of the Centralized Controller The BCCH frequencies and BSIC for cell of being engaged in.

Specifically, the sending module 71 specifically for：

Alternatively, the base station also includes：

Selecting module 74 is used for the terminal at edge of the selection in the serving cell in the following manner：

Selection newly switches to the terminal of the serving cell；Or,

Specifically, the sending module 71 specifically for：

Specifically, the processing module 72 specifically for determining the BSIC of specific cell in the following manner：

It should be noted that being to each part master to the description of each part of base station in the embodiment of the present invention four Want each part in the description of function, the embodiment of the present invention four also to possess and realize method and step described in embodiment one Function, meanwhile, the base station in the embodiment of the present invention four also has the logic module for performing each step of embodiment one.

Embodiment five：

The present embodiment five is a kind of terminal for belonging to same inventive concept with embodiment one, therefore the implementation of embodiment five can Repeated no more with referring to the implementation of embodiment one, repeating part.

As shown in figure 8, the terminal includes：

BCCH frequency of the receiving module 81 for receiving the serving cell that the terminal of base station transmission is resident.

Processing module 82 be used to determining with the BCCH frequency identical cells of the serving cell, and by the cell determined BSIC report the base station so that the spy that the base station is reported according to the BCCH frequencies and the terminal of the serving cell The BSIC for determining cell determines the co-channel interference source of the base station, or the BCCH frequencies and the terminal of the serving cell are reported The BSIC of specific cell notify to give the connected Centralized Controller in the base station so that the Centralized Controller is according to the clothes The BSIC for the specific cell that the BCCH frequencies and the terminal for cell of being engaged in are reported determines the co-channel interference source of the base station；Wherein, Specific cell is the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell.

Alternatively, the processing module 82 is additionally operable to：

Specifically, the receiving module 81 specifically for：

Specifically, the processing module 82 specifically for：

It should be noted that being to each part master to the description of each part of terminal in the embodiment of the present invention five Want each part in the description of function, the embodiment of the present invention five also to possess and realize method and step described in embodiment one Function, meanwhile, the terminal in the embodiment of the present invention five also has the logic module for performing each step of embodiment one.

Embodiment six：

The present embodiment six is a kind of Centralized Controller for belonging to same inventive concept with embodiment one, therefore embodiment six Implementation may refer to the implementation of embodiment one, repeats part and repeats no more.

As shown in figure 9, the Centralized Controller includes：

Receiving module 91 is used to receive the serving cell that the terminal for the base station transmission being connected with the Centralized Controller is resident BCCH frequencies and the BSIC of specific cell that reports of the terminal；

Determining module 92 is used for the specific cell reported according to the BCCH frequencies and the terminal of the serving cell BSIC determines the co-channel interference source of the base station；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with The cells different BSIC of the serving cell.

Specifically, the determining module 92 specifically for：

Alternatively, the Centralized Controller also includes：

Configuration module 93 is used for the BCCH frequencies that the serving cell that the base station is sent is received in the receiving module 91 Before the BSIC for the specific cell that point and the terminal are reported, the cell for including the serving cell that the base station is sent is received The cell parameter configuring request of mark；BCCH frequencies and BSIC are configured for the serving cell of the base station, and stores the service The corresponding relation of the BCCH frequencies of cell, BSIC and cell ID, wherein, the configuration module 93 is small for the service of the base station The BCCH frequencies and BSIC of area's configuration are unique.

It should be noted that being to each composition to the description of each part of Centralized Controller in the embodiment of the present invention six Each part also possesses the method realized described in embodiment one in the description of part major function, the embodiment of the present invention six The function of step, meanwhile, the Centralized Controller in the embodiment of the present invention six also has the logic mould for performing each step of embodiment one Block.

Embodiment seven：

The present embodiment seven is a kind of system for the determination co-channel interference source for belonging to same inventive concept with embodiment one, therefore The implementation of embodiment seven may refer to the implementation of embodiment one, repeats part and repeats no more.

As shown in Figure 10, the system includes base station 1001, terminal 1002 and Centralized Controller 1003, wherein：

The base station 1001 is used for the BCCH frequencies that the resident serving cell of the terminal 1002 is sent to terminal 1002；Will The BSIC for the specific cell that the BCCH frequencies and the terminal 1002 of the serving cell are reported notifies to give the base station 1001 Connected Centralized Controller 1003；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with the service The cells different BSIC of cell.

The terminal 1002 is used for the BCCH frequencies for receiving the serving cell that the base station 1001 is sent；It is determined that and institute State the BCCH frequency identical cells of serving cell；The BSIC for the cell determined is reported into the base station 1001.

The Centralized Controller 1003 be used for according to the base station 1001 notify the serving cell BCCH frequencies and The BSIC for the specific cell that the terminal is reported determines the co-channel interference source of the base station 1001.

Alternatively, the base station 1001 is additionally operable to：

After the BCCH frequencies of the serving cell are sent to terminal 1002, by the BCCH frequencies of the serving cell and The BSIC for the specific cell that the terminal is reported notifies, to before the Centralized Controller 1003, to determine what the terminal was reported BSIC is the BSIC of specific cell.

Alternatively, the base station 1001 is additionally operable to：

Before the BCCH frequencies of the serving cell are sent to terminal 1002, send small to the Centralized Controller 1003 Area's parameter-configuring request, and according to the configuration of the Centralized Controller 1003 set the serving cell BCCH frequencies and BSIC。

The base station 1001 specifically for：

The base station 1001 specifically for select in the following manner in the serving cell edge terminal：

Selection newly switches to the terminal of the serving cell；Or,

The base station 1001 is sent to the end specifically for the BCCH frequencies of the serving cell are added in BA2 tables End 1002.

The base station 1001 specifically for determining the BSIC of specific cell in the following manner：

In the BCCH frequencies and BSIC corresponding relation that are reported from the terminal 1002, the BSIC of specific cell is determined.

The terminal 1002 is additionally operable to：

The terminal 1002 specifically for：

The BA2 tables that the base station 1001 is sent are received, wherein, the BCCH frequencies comprising the serving cell in the BA2 tables Point.

The terminal 1002 specifically for：

The corresponding relation of the BCCH frequencies for the cell determined and BSIC is reported into the base station 1001.

The Centralized Controller 1003 is additionally operable to：

According to the corresponding relation of BCCH frequencies, BSIC and cell ID, BCCH frequencies and the institute of the serving cell are determined The corresponding cell IDs of BSIC for the specific cell that terminal is reported are stated, and determine that the corresponding cell of the cell ID is the base Stand 1001 co-channel interference source.

The Centralized Controller 1003 is additionally operable to：

It is specific small that the BCCH frequencies and the terminal of the serving cell sent in the reception base station 1001 are reported Before the BSIC in area, the cell parameter configuration for receiving the cell ID comprising the serving cell that the base station 1001 is sent please Ask；Configure BCCH frequencies and BSIC for the serving cell of the base station 1001, and store the serving cell BCCH frequencies, BSIC and cell ID corresponding relation, wherein, the Centralized Controller 1003 configures for the serving cell of the base station 1001 BCCH frequencies and BSIC it is unique.

Embodiment eight：

The present embodiment eight is a kind of system for the determination co-channel interference source for belonging to same inventive concept with embodiment one, therefore The implementation of embodiment eight may refer to the implementation of embodiment one, repeats part and repeats no more.

As shown in figure 11, the system includes base station 1101, terminal 1102 and Centralized Controller 1103, wherein：

The base station 1101 is used for the BCCH frequencies that the resident serving cell of the terminal 1102 is sent to terminal 1102；Root The BSIC of the specific cell reported according to the BCCH frequencies and the terminal 1102 of the serving cell determines the base station 1101 Co-channel interference source；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with the BSIC of the serving cell Different cells.

The terminal 1102 is used for the BCCH frequencies for receiving the serving cell that the base station 1101 is sent；It is determined that and institute State the BCCH frequency identical cells of serving cell；The BSIC for the cell determined is reported into the base station 1101.

The Centralized Controller 1103 is used for serving cell configuration BCCH frequencies and BSIC for the base station 1101, And issue the corresponding relation of the BCCH frequencies, BSIC and cell ID of the cell for each base station being connected with the Centralized Controller To the base station 1101；Wherein, the Centralized Controller for the base station 1101 serving cell configure BCCH frequencies and BSIC is unique.

Alternatively, the base station 1101 is additionally operable to：

After the BCCH frequencies of the serving cell are sent to terminal 1102, according to the BCCH frequencies of the serving cell The BSIC of the specific cell reported with the terminal 1102 is determined before the co-channel interference source of the base station 1101, determines the end Hold the BSIC that the BSIC reported is specific cell.

Specifically, the base station specifically for：

Alternatively, the base station 1101 is additionally operable to：

Before the BCCH frequencies of the serving cell are sent to terminal 1102, send small to the Centralized Controller 1103 Area's parameter-configuring request, and according to the configuration of the Centralized Controller 1103 set the serving cell BCCH frequencies and BSIC。

The base station 1101 specifically for：

The base station 1101 specifically for select in the following manner in the serving cell edge terminal：

Selection newly switches to the terminal of the serving cell；Or,

The base station 1101 is sent to the end specifically for the BCCH frequencies of the serving cell are added in BA2 tables End 1102.

The base station 1101 specifically for determining the BSIC of specific cell in the following manner：

In the BCCH frequencies and BSIC corresponding relation that are reported from the terminal 1102, the BSIC of specific cell is determined.

The terminal 1102 is additionally operable to：

The terminal 1102 specifically for：

The BA2 tables that the base station 1101 is sent are received, wherein, the BCCH frequencies comprising the serving cell in the BA2 tables Point.

The terminal 1102 specifically for：

The corresponding relation of the BCCH frequencies for the cell determined and BSIC is reported into the base station 1101.

The Centralized Controller 1103 is additionally operable to：

Before BCCH frequencies and BSIC is configured for the serving cell of the base station 1101, receive the base station and send The cell ID comprising the serving cell cell parameter configuring request.

The Centralized Controller 1103 is additionally operable to：

After BCCH frequencies and BSIC are configured for the serving cell of the base station 1101, the serving cell is stored BCCH frequencies, the corresponding relation of BSIC and cell ID.

Embodiment nine：

The present embodiment nine is a kind of system for the determination co-channel interference source for belonging to same inventive concept with embodiment one, therefore The implementation of embodiment nine may refer to the implementation of embodiment one, repeats part and repeats no more.

During implementing, the function of the Centralized Controller of foregoing description can be integrated in a base station, and Centralized Controller this equipment is not separately provided, and based on this, as shown in figure 12, system of the invention can only include the He of base station 1201 Terminal 1202.

The base station 1201 is used for the BCCH frequencies that the resident serving cell of the terminal 1202 is sent to terminal 1202；Root The BSIC of the specific cell reported according to the BCCH frequencies and the terminal 1202 of the serving cell determines the base station 1201 Co-channel interference source；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with the BSIC of the serving cell Different cells.

The terminal 1202 is used for the BCCH frequencies for receiving the serving cell that the base station 1201 is sent；It is determined that and institute State the BCCH frequency identical cells of serving cell；The BSIC for the cell determined is reported into the base station 1201.

It should be noted that the base station in the embodiment of the present invention nine can be the cell configuration BCCH of itself and other base stations Frequency and BSIC, and the base station for cell configuration BCCH frequencies and BSIC it is unique.Other base stations（The referred to as first kind Base station）Can be according to the base station according to the embodiment of the present invention nine（Referred to as Second Type base station）Configuration BCCH frequencies and BSIC are set. That is first kind base station is the base station described in embodiment seven or eight, Second Type base station is except possessing first kind base Outside the function of standing, the function of Centralized Controller in embodiment seven or eight is also equipped with.

Alternatively, the base station 1201 is additionally operable to：

After the BCCH frequencies of the serving cell are sent to terminal 1202, according to the BCCH frequencies of the serving cell The BSIC of the specific cell reported with the terminal 1202 is determined before the co-channel interference source of the base station 1201, determines the end The BSIC for the cell determined that end 1202 is reported is the BSIC of specific cell.

The base station 1201 specifically for：

According to the corresponding relation of BCCH frequencies, BSIC and cell ID, BCCH frequencies and the institute of the serving cell are determined The corresponding cell IDs of BSIC for the specific cell that terminal is reported are stated, and determine that the corresponding cell of the cell ID is the base Stand 1201 co-channel interference source.

The base station 1201 specifically for：

The base station 1201 specifically for select in the following manner in the serving cell edge terminal：

Selection newly switches to the terminal of the serving cell；Or,

The base station 1201 is sent to the end specifically for the BCCH frequencies of the serving cell are added in BA2 tables End 1202.

The base station 1201 specifically for determining the BSIC of specific cell in the following manner：

In the BCCH frequencies and BSIC corresponding relation that are reported from the terminal 1202, the BSIC of specific cell is determined.

The terminal 1202 is additionally operable to：

It is determined that after BCCH frequency identical cells with the serving cell, by the BCCH frequencies for the cell determined Before reporting the base station 1201 with BSIC, it is determined that the BSIC of the cell determined is the BSIC of specific cell.

The terminal 1202 specifically for：

The BA2 tables that the base station 1201 is sent are received, wherein, the BCCH frequencies comprising the serving cell in the BA2 tables Point.

The terminal 1202 specifically for：

The corresponding relation of the BCCH frequencies for the cell determined and BSIC is reported into the base station 1201.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation The form of product.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims

1. a kind of method for determining co-channel interference source, it is characterised in that methods described includes：

Base station sends the BCCH channel of broadcast control frequency of the resident serving cell of the terminal to terminal, so that the terminal is true The fixed BCCH frequency identical cells with the serving cell；

Described in the BSIC for the specific cell that the base station is reported according to the BCCH frequencies and the terminal of the serving cell is determined The co-channel interference source of base station, or the BSIC for the specific cell that the BCCH frequencies and the terminal of the serving cell are reported are notified The connected Centralized Controller in the base station is given, so that BCCH frequency and institute of the Centralized Controller according to the serving cell The BSIC for stating the specific cell that terminal is reported determines the co-channel interference source of the base station；

Described in the BSIC for the specific cell that the base station is reported according to the BCCH frequencies and the terminal of the serving cell is determined The co-channel interference source of base station, is specifically included：

The base station determines the BCCH frequencies of the serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID Cell ID corresponding with the BSIC for the specific cell that the terminal is reported, and determine that the corresponding cell of the cell ID is institute State the co-channel interference source of base station；

Wherein, specific cell is identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell small Area.

2. the method as described in claim 1, it is characterised in that the base station sends the BCCH frequencies of the serving cell to terminal After point, the BSIC of the specific cell reported according to the BCCH frequencies and the terminal of the serving cell determines the base station Before co-channel interference source, or the specific cell that the BCCH frequencies and the terminal of the serving cell are reported BSIC notify to Before the Centralized Controller being connected with the base station, in addition to：

3. the method as described in claim 1, it is characterised in that the base station sends the BCCH frequencies of the serving cell to terminal Before point, in addition to：

The base station sends cell parameter configuring request to the Centralized Controller, and is installed according to matching somebody with somebody for the Centralized Controller Put the BCCH frequencies and BSIC of the serving cell.

4. the method as described in claim 1, it is characterised in that the base station sends the BCCH frequencies of the serving cell to terminal Point, is specifically included：

5. method as claimed in claim 4, it is characterised in that the base station selects small in the service in the following manner The terminal at the edge in area：

Selection newly switches to the terminal of the serving cell；Or,

Downlink reception level value is selected to be more than the terminal of the 4th threshold value more than the 3rd threshold value and downlink reception mass value；Or,

6. the method as described in Claims 1 to 5 is any, it is characterised in that the base station sends the serving cell to terminal BCCH frequencies, specifically include：

7. method as claimed in claim 6, it is characterised in that the base station determines specific cell in the following manner BSIC：

In BCCH frequencies and BSIC corresponding relation that the base station is reported from the terminal, the BSIC of specific cell is determined.

8. a kind of method for determining co-channel interference source, it is characterised in that methods described includes：

The terminal determines the BCCH frequency identical cells with the serving cell, and the BSIC for the cell determined is reported To the base station, so that corresponding relation of the base station according to BCCH frequencies, BSIC and cell ID, determines the serving cell BCCH frequencies and the corresponding cell IDs of BSIC of specific cell that report of the terminal, and determine the cell ID correspondence Cell be the base station co-channel interference source, or by the BCCH frequencies and the terminal of the serving cell report it is specific small The BSIC in area notifies to give the connected Centralized Controller in the base station, so that the Centralized Controller is according to BCCH frequencies, BSIC With the corresponding relation of cell ID, the BSIC for the specific cell that the BCCH frequencies and the terminal of the serving cell are reported is determined Corresponding cell ID, and determine the co-channel interference source that the corresponding cell of the cell ID is the base station；

9. method as claimed in claim 8, it is characterised in that the terminal determines the BCCH frequency phases with the serving cell With cell after, before the BSIC for the cell determined reported into the base station, in addition to：

10. method as claimed in claim 8 or 9, it is characterised in that terminal receives the clothes that the terminal of base station transmission is resident The BCCH frequencies for cell of being engaged in, are specifically included：

The terminal receives the BA2 tables that the base station is sent, wherein, the BCCH frequencies comprising the serving cell in the BA2 tables Point.

11. method as claimed in claim 10, it is characterised in that the BSIC for the cell determined is reported institute by the terminal Base station is stated, is specifically included：

12. a kind of method for determining co-channel interference source, it is characterised in that methods described includes：

The BCCH frequencies for the serving cell that the terminal that Centralized Controller receives the base station transmission being connected with the Centralized Controller is resident The BSIC for the specific cell that point and the terminal are reported；

The BSIC for the specific cell that the Centralized Controller is reported according to the BCCH frequencies and the terminal of the serving cell is true The co-channel interference source of the fixed base station；Wherein, the BSIC terminals of the specific cell are being received described in the base station transmission Reported after the BCCH frequencies of the resident serving cell of terminal to base station；

The BSIC for the specific cell that the Centralized Controller is reported according to the BCCH frequencies and the terminal of the serving cell is true The co-channel interference source of the fixed base station, is specifically included：

The Centralized Controller determines the serving cell according to the corresponding relation of BCCH frequencies, BSIC and cell ID The corresponding cell IDs of BSIC for the specific cell that BCCH frequencies and the terminal are reported, and determine that the cell ID is corresponding Cell is the co-channel interference source of the base station；

13. method as claimed in claim 12, it is characterised in that the Centralized Controller receives the described of the base station transmission Before the BSIC for the specific cell that the BCCH frequencies and the terminal of serving cell are reported, in addition to：

The Centralized Controller receives the cell parameter configuration for the cell ID comprising the serving cell that the base station is sent Request；

The Centralized Controller configures BCCH frequencies and BSIC for the serving cell of the base station, and stores the serving cell The corresponding relation of BCCH frequencies, BSIC and cell ID, wherein, the Centralized Controller configures for the serving cell of the base station BCCH frequencies and BSIC it is unique.

14. a kind of base station, it is characterised in that the base station includes：

Sending module, the BCCH frequencies for sending the resident serving cell of the terminal to terminal, so that the terminal is determined With the BCCH frequency identical cells of the serving cell；

Processing module, the BSIC of the specific cell reported for the BCCH frequencies and the terminal according to the serving cell is determined The co-channel interference source of the base station, or the specific cell that the BCCH frequencies and the terminal of the serving cell are reported BSIC Notify to give the connected Centralized Controller in the base station, so that BCCH frequency of the Centralized Controller according to the serving cell The BSIC of the specific cell reported with the terminal determines the co-channel interference source of the base station；Wherein, specific cell be with it is described Identical and different from the BSIC of the serving cell cell of the BCCH frequencies of serving cell；

The processing module specifically for：

According to the corresponding relation of BCCH frequencies, BSIC and cell ID, the BCCH frequencies of the serving cell and the end are determined The corresponding cell IDs of BSIC of the specific cell reported are held, and determine that the corresponding cell of the cell ID is the base station Co-channel interference source.

15. base station as claimed in claim 14, it is characterised in that the processing module is additionally operable to：

After the BCCH frequencies that the sending module sends the serving cell to the terminal, according to the serving cell The BSIC for the specific cell that BCCH frequencies and the terminal are reported determined before the co-channel interference source of the base station, or by the clothes The BSIC for the specific cell that the BCCH frequencies of business cell are reported with the terminal notifies to give the centralized Control that the base station is connected Before device, the BSIC that BSIC that the terminal reports is specific cell is determined.

16. base station as claimed in claim 14, it is characterised in that the base station also includes：

Configuration module, for before the BCCH frequencies that the sending module sends the serving cell to the terminal, to institute State Centralized Controller and send cell parameter configuring request, and the serving cell is set according to the configuration of the Centralized Controller BCCH frequencies and BSIC.

17. base station as claimed in claim 14, it is characterised in that the sending module specifically for：

18. base station as claimed in claim 17, it is characterised in that the base station also includes：

Selecting module, the terminal for selecting the edge in the serving cell in the following manner：

Selection newly switches to the terminal of the serving cell；Or,

19. the base station as described in claim 14~18 is any, it is characterised in that the sending module specifically for：

20. base station as claimed in claim 19, it is characterised in that the processing module specifically for determining in the following manner The BSIC of specific cell：

21. a kind of terminal, it is characterised in that the terminal includes：

Processing module, for determine with the BCCH frequency identical cells of the serving cell, and by the upper of the cell determined The base station is offered, so that corresponding relation of the base station according to BCCH frequencies, BSIC and cell ID, determines that the service is small The corresponding cell IDs of BSIC for the specific cell that the BCCH frequencies and the terminal in area are reported, and determine the cell ID pair The cell answered be the base station co-channel interference source, or by the BCCH frequencies and the terminal of the serving cell report it is specific The BSIC of cell notifies to give the connected Centralized Controller in the base station so that the Centralized Controller according to BCCH frequencies, BSIC and cell ID corresponding relation, determine the specific cell that the BCCH frequencies and the terminal of the serving cell are reported The corresponding cell IDs of BSIC, and determine the co-channel interference source that the corresponding cell of the cell ID is the base station；Wherein, it is special Cell is determined for the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell.

22. terminal as claimed in claim 21, it is characterised in that the processing module is additionally operable to：

It is determined that after BCCH frequency identical cells with the serving cell, the BSIC for the cell determined is reported into institute Before stating base station, it is determined that the BSIC of the cell determined is the BSIC of specific cell.

23. the terminal as described in claim 21 or 22, it is characterised in that the receiving module specifically for：

24. terminal as claimed in claim 23, it is characterised in that the processing module specifically for：

25. a kind of Centralized Controller, it is characterised in that the Centralized Controller includes：

Receiving module, the BCCH for the serving cell that the terminal that the base station being connected for receiving with the Centralized Controller is sent is resident The BSIC for the specific cell that frequency and the terminal are reported；Wherein, the BSIC of the specific cell is that terminal is receiving the base Reported after the BCCH frequencies for the serving cell that the terminal sent of standing is resident to base station；

Determining module, the BSIC of the specific cell reported for the BCCH frequencies and the terminal according to the serving cell is determined The co-channel interference source of the base station；Wherein, specific cell be with the BCCH frequencies of the serving cell it is identical and with the service The cells different BSIC of cell；

26. Centralized Controller as claimed in claim 25, it is characterised in that the Centralized Controller also includes：

Configuration module, for receiving the BCCH frequencies of the serving cell that the base station is sent in the receiving module and described Before the BSIC for the specific cell that terminal is reported, the small of the cell ID comprising the serving cell that the base station is sent is received Area's parameter-configuring request；BCCH frequencies and BSIC are configured for the serving cell of the base station, and stores the serving cell The corresponding relation of BCCH frequencies, BSIC and cell ID, wherein, the BCCH that configuration module configures for the serving cell of the base station Frequency and BSIC are unique.

27. a kind of system for determining co-channel interference source, it is characterised in that the system includes base station, terminal and Centralized Controller, Wherein：

The base station, the BCCH frequencies for sending the resident serving cell of the terminal to terminal；By the serving cell The BSIC for the specific cell that BCCH frequencies are reported with the terminal notifies to give the Centralized Controller that the base station is connected；Wherein, Specific cell is the cell identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell；

The terminal, the BCCH frequencies for receiving the serving cell that the base station is sent；It is determined that with the serving cell BCCH frequency identical cells；The BSIC for the cell determined is reported into the base station；

The Centralized Controller, for the corresponding relation according to BCCH frequencies, BSIC and cell ID, determines the serving cell BCCH frequencies and the corresponding cell IDs of BSIC of specific cell that report of the terminal, and determine the cell ID correspondence Cell be the base station co-channel interference source.

28. a kind of system for determining co-channel interference source, it is characterised in that the system includes base station, terminal and Centralized Controller, Wherein：

The base station, the BCCH frequencies for sending the resident serving cell of the terminal to terminal；According to the serving cell BCCH frequencies, the corresponding relation of BSIC and cell ID, determine that the BCCH frequencies and the terminal of the serving cell are reported Specific cell the corresponding cell IDs of BSIC, and determine the corresponding cell of the cell ID be the base station same frequency do Disturb source；Wherein, specific cell is identical and different with the BSIC of the serving cell from the BCCH frequencies of the serving cell Cell；

The Centralized Controller, BCCH frequencies and BSIC are configured for the serving cell for the base station, and will with it is described The corresponding relation of the BCCH frequencies of the cell of the connected each base station of Centralized Controller, BSIC and cell ID is handed down to the base Stand；Wherein, the BCCH frequencies and BSIC that the Centralized Controller configures for the serving cell of the base station are unique.

29. a kind of system for determining co-channel interference source, it is characterised in that the system includes base station and terminal, wherein：

The terminal, the BCCH frequencies for receiving the serving cell that the base station is sent；It is determined that with the serving cell BCCH frequency identical cells；The BSIC for the cell determined is reported into the base station.