CN103428750A - Method and device for reducing interference of newly-built cell to surrounding cells - Google Patents
Method and device for reducing interference of newly-built cell to surrounding cells Download PDFInfo
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Abstract
The invention discloses a method and device for reducing interference of a newly-built cell to surrounding cells. The method for reducing interference of the newly-built cell to the surrounding cells comprises the steps that (1) in the process of building the cell, channels of a base band do not transmit power in the initial procedure, (2) a base station detects whether a shared channel of the cell is complete after the building process of the shared transmission channel is finished, and (3) the channels of the base band start to transmit the power when the shared channel of the cell is complete. The device for reducing interference of the newly-built cell to the surrounding cells comprises an initial configuration module, a detection module and a control module. According to the method and device for reducing interference of the newly-built cell to the surrounding cells, due to the facts that completeness of the shared channel of the cell is detected to judge whether UE can have access to the shared channel, and the power starts to be transmitted under the condition that the UE of the newly-built cell is in the accessible state, interference of the newly-built cell to the surrounding cells can be reduced.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of method and device that disturb peripheral cell newly-built community that reduce.
Background technology
The ，Yi Ge community is set up overall process and is comprised following main NBAP (Node B Application Part, node B application part) signaling process as shown in Figure 1:
The community Establishing process comprises: RNC (Radio Network Controller, radio network controller) sends community to Node B and sets up request Cell Setup Request, and Node B returns to community and sets up response Cell Setup Response;
The Common transport channel Establishing process comprises: RNC sends Common transport channel to Node B and sets up request Common TrCH Setup Request, and Node B returns to Common transport channel and sets up response Common TrCH Setup Response;
And system information more new technological process comprise: RNC is to Node B transmitting system information updating request System Information Update Request, Node B retrieval system information updating response System Information Update Response.
Wherein, the community Establishing process, be sent to Node B for the cell configuration parameter by RNC and common channel data; Set the main scrambler of community, and complete BCH (Broadcast Channel, broadcast channel), CPICH (Common Pilot Channel, Common Pilot Channel), P-SCH (Primary Synchronisation Channel, main synchronizing channel), S-SCH (Secondary Synchronisation Channel, auxiliary synchronization channel), the configuration of the common signal channels such as P-CCPCH (Primary Common Control Physical Channel, main Common Control Physical Channel).
The Common transport channel Establishing process, for configuring the essential common channel resources of some community UE access network sides, , set up SCCPCH (Secondary Common Control Physical Channel, Secondary Common Control Physical Channel), and relative FACH (Forward Access Channel, forward access channel), PCH (Paging Channel, paging channel) and PICH (Paging Indicator Channel, Page Indication Channel), also has PRACH (Physical Random Access Channel, Physical Random Access Channel), and RACH (the Random Access Channel relevant to this PRACH, Random Access Channel) and AICH (Acquisition Indicator Channel, AICH Acquisition Indication Channel) common signal channel such as.
System information is new technological process more, sets the content of suitable schedule information and control system information broadcasting for the Node B to the place, community, in order to make Node B apply correct scheduling and/or comprise that suitable content carries out the broadcast of system information section on BCH.
Through above flow process, each channel of community is set up complete, and on each channel transmitting power, UE can access.
For UE, at first to pass through the community selection course, find suitable community to carry out resident.Obtain the main scrambler of community by P-SCH, S-PCH and P-CPICH (Primary Common Pilot Channel, main Common Pilot Channel), then receive P-CCPCH, thus the BCH information of reading system and community.BCH information is decoded, found available RACH subchannel, choose at random a RACH subchannel and send access lead, afterwards AICH is decoded, checked whether base station has detected leading.When AICH being detected, after RACH sends message and receive corresponding reply on FACH, could set up normal uplink downlink and carry out voice or data session.
In above-mentioned process, have the local ，Yi Ge community of a key that basic Common transport channel and public physic channel must be arranged, and on channel, transmitting power is normal, UE just can recognition network final access.If for example, the common signal channel of newly-built community incomplete (PRACH or FACH are not successfully established), UE can't normally access this community, and now, the power of launching on this each channel of newly-built community will form a kind of interference to peripheral cell.So, be badly in need of proposing a kind of method that can reduce this interference.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of method and device that disturb peripheral cell newly-built community that reduce, guaranteeing just to start transmitting power on channel under the state that newly-built community UE can access, with this, reduce the interference of newly-built community to peripheral cell.
In order to solve the problems of the technologies described above, the invention provides a kind of method that disturb peripheral cell newly-built community that reduces, comprising:
In the Establishing process of community, each channel of base band transmitting power not in initial procedure;
After the Common transport channel Establishing process finishes, whether the common signal channel of described community is detected in base station complete;
If the common signal channel of described community is complete, each channel of described base band starts transmitting power.
Further, described method also comprises:
If it is incomplete that base station detects the common signal channel of described community, each channel of base band transmitting power not still, whether the common signal channel of described community is continued to detect in described base station complete.
Further, whether complete the referring to of common signal channel of described community detected in described base station, detects the necessary common signal channel of user equipment (UE) access network side and all is successfully established or has the necessary common signal channel of one or more described UE access network side not to be successfully established.
Further, described after the Common transport channel Establishing process finishes, whether the common signal channel of described community is detected in base station complete, comprising:
In the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, described base station arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
Further, described in initial procedure each channel of base band transmitting power not, comprising:
Described base station and radio network controller (RNC) are set up the inaccessible flow process ，Jiang of resource community logical resource and are set to down state;
If the common signal channel of described community is complete, each channel of described base band starts transmitting power, comprising:
The unblocking of the described community of described RNC is notified by the inaccessible indication of resource solution in described base station, and the described community logical resource that simultaneously is set to down state is set to upstate.
In order to solve the problems of the technologies described above, the present invention also provides a kind of device that disturb peripheral cell newly-built community that reduces, and comprising:
The initial configuration module at the community Establishing process, configures not transmitting power of each channel of base band in initial procedure;
Detection module, after finishing at the Common transport channel Establishing process, whether the common signal channel that detects described community is complete, and notifies control module by testing result;
Control module, if be yes for testing result, control each channel of base band and start transmitting power.
Further, described control module, if be also no for the testing result received, each channel that keeps base band is transmitting power not still, and whether the common signal channel of notifying described detection module to continue to detect described community is complete;
Described detection module, also for after receiving the notice of described control module, whether the common signal channel that continues the described community of detection is complete, and notifies described control module by testing result.
Further, described detection module detects whether complete the referring to of common signal channel of described community, detects the necessary common signal channel of user equipment (UE) access network side and all is successfully established or has the necessary common signal channel of one or more described UE access network side not to be successfully established.
Further, described detection module, after finishing at the Common transport channel Establishing process, detect the whether complete module of common signal channel of described community, comprising:
In the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, described detection module arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
Further, described initial configuration module configures not transmitting power of each channel of base band in initial procedure, comprising:
Described initial configuration module and radio network controller (RNC) are set up the inaccessible flow process ，Jiang of resource community logical resource and are set to down state;
Described control module is receiving that testing result when being, controlling each channel of base band and start transmitting power, comprising:
Described control module is notified the unblocking of the described community of described RNC by the inaccessible indication of resource solution, and the described community logical resource that simultaneously is set to down state is set to upstate.
Compared with prior art, method and the device that disturb peripheral cell the newly-built community of reduction provided by the invention, completeness by the detected cells common signal channel, whether accessible to differentiate UE, guaranteeing just to start transmitting power under the state that newly-built community UE can access, with this, reduce the interference of newly-built community to peripheral cell.
The accompanying drawing explanation
Tu1Shi sets up community the flow chart of overall process NBAP;
Fig. 2 reduces the structure drawing of device that disturb peripheral cell newly-built community in embodiment;
Fig. 3 reduces the method flow diagram that disturb peripheral cell newly-built community in embodiment;
Fig. 4 is the inaccessible schematic flow sheet of resource in embodiment;
Fig. 5 is the inaccessible schematic flow sheet of resource solution in embodiment;
Fig. 6 reduces the method flow diagram that disturb peripheral cell newly-built community in an application example.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
Embodiment:
As shown in Figure 2, the present embodiment provides a kind of device that disturb peripheral cell newly-built community that reduces, and comprising:
The initial configuration module at the community Establishing process, configures not transmitting power of each channel of base band in initial procedure;
Wherein, the initial configuration module in initial procedure, configure each channel of base band not transmitting power include but not limited to following several mode:
For example, dominant pilot Common Pilot Channel (P-CPICH) power of allocating cell is 0 to be handed down to base band, because base band be take the power that main pilot power is each channel of benchmark, thereby controls not transmitting power of each channel; Perhaps, each channel emission power of allocating cell is 0 to be handed down to base band.
In addition, when described initial configuration module and radio network controller (RNC) are set up the inaccessible flow process ，Jiang of resource community logical resource and be set to logical resource in down state ，Dang community and be considered to obturation, each channel of base band is transmitting power not.
Detection module, after finishing at the Common transport channel Establishing process, whether the common signal channel that detects described community is complete, and notifies control module by testing result;
Wherein, described detection module detects whether complete the referring to of common signal channel of described community, and the necessary common signal channel of detection user equipment (UE) access network side all is successfully established or the necessary common signal channel of described UE access network side all is not successfully established.
As a kind of preferred mode, described detection module, after the Common transport channel Establishing process finishes, detects the whether complete module of common signal channel of described community, comprising:
In the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, described detection module arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
Control module, if be yes for testing result, control base band and start transmitting power.
Wherein, control module is controlled each channel of base band and is started transmitting power and include but not limited to following several mode:
Original dominant pilot Common Pilot Channel (P-CPICH) power that configures described community is handed down to base band and carrys out transmitting power, or each channel emission power of allocating cell is that original power is handed down to base band.
In addition, if the initial configuration module is forbidden the use of community by the resource obturation, so described control module also can be notified the unblocking of the described community of described RNC by the inaccessible indication of resource solution, the described community logical resource that simultaneously is set to down state is set to upstate, like this, each channel of base band just can start transmitting power according to the actual power of community.
Wherein, described control module, if be also no for the testing result received, each channel that keeps base band is transmitting power not still, and whether the common signal channel of notifying described detection module to continue to detect described community is complete;
Described detection module, also for after receiving the notice of described control module, whether the common signal channel that continues the described community of detection is complete, and notifies described control module by testing result.
As shown in Figure 3, the present embodiment provides a kind of method that disturb peripheral cell newly-built community that reduces, and comprises the following steps:
S101: in the Establishing process of community, each channel of base band transmitting power not in initial procedure;
S102: after the Common transport channel Establishing process finishes, whether the common signal channel of described community is detected in base station complete, if so, perform step S103, otherwise repeated execution of steps S102 continues to detect until the common signal channel of community is set up complete;
S103: each channel of base band starts transmitting power.
In step S101, in initial procedure each channel of base band not transmitting power include but not limited to following mode:
For example, dominant pilot Common Pilot Channel (P-CPICH) power of base station allocating cell is 0 to be handed down to base band, because base band be take the power that main pilot power is each channel of benchmark, thereby controls not transmitting power of each channel; Perhaps, each channel emission power of allocating cell is 0 to be handed down to base band.
In addition, the inaccessible flow process of resource also can be set up with radio network controller (RNC) in base station, as shown in Figure 4, Node B sends the inaccessible request of resource Block Resource Request to RNC, RNC returns to the inaccessible response of resource Block Resource Response, Node B community logical resource is set to down state simultaneously, , when the inaccessible response of the resource of receiving RNC, Node B can make the P-SCH of community, S-SCH, CPICH and P-CCPCH become the disable state, other logical resource in community will be thought by obturation, now, each channel of base band is transmitting power not.
In step S102, whether complete the referring to of common signal channel of described community detected in base station, whether detect the necessary common signal channel of user equipment (UE) access network side all is successfully established, that is, detecting the necessary common signal channel of UE access network side all is successfully established or has and one or morely be not successfully established.
Whether whether the Ji Gai community comprises following common signal channel: BCH, FACH, RACH, CPICH, P-SCH, S-SCH, PCCPCH, SCCPCH, PICH, PRACH, AICH, detect these channels and be successfully established.
Wherein, as preferred embodiment a kind of, in the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, base station arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, and wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
Perhaps, Common transport channel Establishing process or system information more after new technological process the common signal channel of this community of direct-detection whether complete.
In step S103, the configuration base band comes transmitting power to include but not limited to following mode by the actual power of described community:
For example, original dominant pilot Common Pilot Channel (P-CPICH) power that configures described community is handed down to base band and carrys out transmitting power, or each channel emission power of allocating cell is that original power is handed down to base band.
In addition, if forbid the use of community by the resource obturation in step S101, Node B also can notify the unblocking of the described community of described RNC by the inaccessible indication of resource solution UnBlock Resource Indication so, as shown in Figure 5, the various logic resource that simultaneously is set to unavailable (disabled) state is set to available (enable) state, like this, each channel of base band just can start transmitting power according to the actual power of community.
In an application example, as shown in Figure 6, reduce the method for peripheral cell being disturbed newly-built community and comprise the following steps:
S201:Node B after receiving the request of setting up of RNCDe community, the relevant parameter of allocating cell and BCH, P-SCH, S-SCH, PCPICH, PCCPCH channel, configured the rear dominant pilot P-CPICH power that community is set and be 0 and be handed down to base band;
S202:Node B replys community and sets up response to RNC;
S203: after Common transport channel is set up, whether Node B arranges the 5s timer and comes the common signal channel of detected cells complete;
S204: after timer expiry, whether PRACH channel and FACH channel that Node B detects this newly-built community exist, if exist, and execution step S205, otherwise reset timer, repeated execution of steps S204, continue to detect until the common signal channel of community is set up complete;
S205: the original main pilot power of allocating cell is to base band;
S206: each channel of base band starts transmitting power.
In a concrete example, suppose that there is same overlay area community 0 and community 1.Community 0 common signal channel is set up complete, and transmitting power is normal, and UE can normally access.Newly-built community 1 common signal channel is incomplete, there is no PRACH channel and relevant RACH and AICH channel, and according to the present embodiment said method, allocating cell 1 each channel is transmitting power not.
Like this, when UE need to access in same overlay area, just can only search the main scrambler of available cell 0, access community 0.UE access community 0,1 pair of community does not produce interference.
From above-described embodiment, can find out, with respect to prior art, method and the device that disturb peripheral cell the newly-built community of the reduction provided in above-described embodiment, completeness by the detected cells common signal channel, whether accessible to differentiate UE, guaranteeing just to start transmitting power under the state that newly-built community UE can access, with this, reduce the interference of newly-built community to peripheral cell.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The foregoing is only the preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.According to summary of the invention of the present invention; also other various embodiments can be arranged; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (10)
1. one kind is reduced the method that disturb peripheral cell newly-built community, comprising:
In the Establishing process of community, each channel of base band transmitting power not in initial procedure;
After the Common transport channel Establishing process finishes, whether the common signal channel of described community is detected in base station complete;
If the common signal channel of described community is complete, each channel of described base band starts transmitting power.
2. the method for claim 1, it is characterized in that: described method also comprises:
If it is incomplete that base station detects the common signal channel of described community, each channel of base band transmitting power not still, whether the common signal channel of described community is continued to detect in described base station complete.
3. method as claimed in claim 1 or 2 is characterized in that:
Whether complete the referring to of common signal channel of described community detected in described base station, detects the necessary common signal channel of user equipment (UE) access network side and all is successfully established or has the necessary common signal channel of one or more described UE access network side not to be successfully established.
4. the method for claim 1 is characterized in that:
Described after the Common transport channel Establishing process finishes, whether the common signal channel of described community is detected in base station complete, comprising:
In the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, described base station arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
5. the method for claim 1 is characterized in that:
Described in initial procedure each channel of base band transmitting power not, comprising:
Described base station and radio network controller (RNC) are set up the inaccessible flow process ，Jiang of resource community logical resource and are set to down state;
If the common signal channel of described community is complete, each channel of described base band starts transmitting power, comprising:
The unblocking of the described community of described RNC is notified by the inaccessible indication of resource solution in described base station, and the described community logical resource that simultaneously is set to down state is set to upstate.
6. one kind is reduced the device that disturb peripheral cell newly-built community, comprising:
The initial configuration module at the community Establishing process, configures not transmitting power of each channel of base band in initial procedure;
Detection module, after finishing at the Common transport channel Establishing process, whether the common signal channel that detects described community is complete, and notifies control module by testing result;
Control module, if be yes for testing result, control each channel of base band and start transmitting power.
7. device as claimed in claim 6 is characterized in that:
Described control module, if be also no for the testing result received, each channel that keeps base band is transmitting power not still, and whether the common signal channel of notifying described detection module to continue to detect described community is complete;
Described detection module, also for after receiving the notice of described control module, whether the common signal channel that continues the described community of detection is complete, and notifies described control module by testing result.
8. device as described as claim 6 or 7 is characterized in that:
Described detection module detects whether complete the referring to of common signal channel of described community, detects the necessary common signal channel of user equipment (UE) access network side and all is successfully established or has the necessary common signal channel of one or more described UE access network side not to be successfully established.
9. device as claimed in claim 6 is characterized in that:
Described detection module, after finishing at the Common transport channel Establishing process, detect the whether complete module of common signal channel of described community, comprising:
In the Establishing process of described community, in described Common transport channel Establishing process or system information more in new technological process, described detection module arranges timer, after timer time arrives, whether the common signal channel that starts to detect described community is complete, wherein then, described Common transport channel Establishing process at least finishes the timing of timer.
10. device as claimed in claim 6 is characterized in that:
Described initial configuration module configures not transmitting power of each channel of base band in initial procedure, comprising:
Described initial configuration module and radio network controller (RNC) are set up the inaccessible flow process ，Jiang of resource community logical resource and are set to down state;
Described control module is receiving that testing result when being, controlling each channel of base band and start transmitting power, comprising:
Described control module is notified the unblocking of the described community of described RNC by the inaccessible indication of resource solution, and the described community logical resource that simultaneously is set to down state is set to upstate.
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Granted publication date: 20160511 Termination date: 20190517 |