CN102340818B - Power control method and device of home eNodeB (HeNB) - Google Patents
Power control method and device of home eNodeB (HeNB) Download PDFInfo
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Abstract
The invention embodiment discloses a power control method and device of a home eNodeB (HeNB) and relates to the field of wireless communication. The power control method and device are used for reducing the signal interference of the HeNB to an unauthorized close subscriber group (CSG) subscriber in the coverage range of the HeNB. The HeNB in the invention determines whether the unauthorized CSG subscriber free from the signal interference of the HeNB exists, and the signal emitting power of the HeNB is reduced when the unauthorized CSG subscriber is determined to exist, thereby effectively reducing the signal interference of the HeNB to the unauthorized CSG subscriber in the coverage range of the HeNB.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of Poewr control method and equipment of Home eNodeB.
Background technology
In disposing the single layer network of macro base station (Micro eNodeB, MeNB), can be by adopting the method for following downlink power control to avoid signal between contingent macro base station to disturb excessive problem, specific as follows:
The first macro base station sends wireless network transmissions power (RNTP) parameter to the second macro base station, comprises the power grade of the first macro base station on each Physical Resource Block (PRB) in this RNTP parameter; The second macro base station receives after RNTP parameter, can carry out following two kinds of operations:
The first, the PRB that the second macro base station arranges cell edge terminal (UE) and center of housing estate UE by dispatch interface is used priority.The second, the RNTP parameter that the second macro base station is sent according to the RNTP parameter of self and the first macro base station is reduced in the signal transmission power on one or more PRB.
Along with the requirement of growing data rate and business load, traditional covers and provides the method for access can not satisfy the demands with macro base station individual layer.Adopt layered coverage, at hot zones or indoor deployment Home eNodeB (Home eNodeB, HeNB), can be good at addressing this is that.Home eNodeB is a kind of base station equipment being applied under family's indoor environment, working environment or the little overlay environment of other focus, can make operator that high data rate, attractive business are more cheaply provided more.
The method that Home eNodeB carries out downlink power control below:
Macro base station indication Home eNodeB is adjusted signal transmission power, and Home eNodeB improves or reduce the signal transmission power of this base station according to the indication of macro base station.Or Home eNodeB is adjusted into Ptx according to following formula automatically by the signal transmission power of this base station:
(Pmax/Pmin is maximum/minimum emissive power of HeNB to Ptx=max for min (α PM+ β, Pmax), Pmin) [dBm], and PM is the received power of the macro base station that records, and α β is predefined adjustment parameter.
In realizing process of the present invention, inventor finds to exist in prior art following technical problem:
For the situation of close subscriber group (Close Subscriber Group, CSG), as shown in Figure 1, UE1 belongs to macro base station, Home eNodeB only can be served the mandate CSG user of this base station, because UE2 is the mandate CSG user of Home eNodeB, so can access to family base station.When UE1 is positioned at the coverage of Home eNodeB, because UE1 is different from UE2, the mandate CSG user of Home eNodeB, even the signal strength signal intensity of Home eNodeB far away higher than the signal strength signal intensity of macro base station, UE1 also cannot be switched to Home eNodeB and will be subject to the strong jamming from Home eNodeB.So just likely cause the non-constant of channel condition of user UE1, produce call drop, or even cannot work.The mandate CSG user of Home eNodeB, refers to the UE of the CSG sign (CSG ID) that is awarded Home eNodeB.The corresponding CSG ID of each Home eNodeB meeting, a plurality of Home eNodeB can corresponding same CSG ID.
Summary of the invention
The embodiment of the present invention provides a kind of Poewr control method and Home eNodeB of Home eNodeB, for reducing Home eNodeB, to being positioned at the unauthorized CSG user's of this base station range signal, disturbs.
A Poewr control method for Home eNodeB, the method comprises:
Home eNodeB determines whether to exist the unauthorized close subscriber group CSG user of the signal interference that is subject to this Home eNodeB;
Home eNodeB is being determined while there is described unauthorized CSG user, is being reduced the signal transmission power of this Home eNodeB.
A Home eNodeB, this Home eNodeB comprises:
Determining unit, for determining whether to exist the unauthorized close subscriber group CSG user of the signal interference that is subject to this Home eNodeB;
Power control unit, while there is described unauthorized CSG user for determining in described determining unit, reduces the signal transmission power of this Home eNodeB.
In this programme, Home eNodeB determines whether to exist and is subject to the unauthorized CSG user that the signal of this Home eNodeB disturbs, and is determining while there is unauthorized CSG user, reduces the signal transmission power of this Home eNodeB.Because unauthorized CSG user can not be switched to this Home eNodeB in the signal strength signal intensity of Home eNodeB during far away higher than the signal strength signal intensity of macro base station yet, therefore unauthorized CSG user can be subject to the strong jamming from Home eNodeB, the present invention, by reducing the signal transmission power of Home eNodeB, can effectively reduce Home eNodeB and disturb being positioned at the unauthorized CSG user's of this base station range signal.
The embodiment of the present invention also provides power to adjust triggering method, terminal and serving BS, for triggering Home eNodeB, reduces signal transmission power.
Power is adjusted a triggering method, and the method comprises:
When the terminal in Idle state searches signal Qiang community and is the community of Home eNodeB when carrying out community selection or gravity treatment, judge whether this terminal is unauthorized close subscriber group CSG user;
Terminal, after this terminal of judgement is unauthorized CSG user, is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB.
Power is adjusted a triggering method, and the method comprises:
The measurement report that the serving BS receiving terminal of terminal reports;
Serving BS is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB, and this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB.
A terminal, this terminal comprises:
Judging unit, while being the community of Home eNodeB for search signal Qiang community when Idle state carries out community selection or gravity treatment in this terminal, judges whether this terminal is unauthorized close subscriber group CSG user;
Trigger element, after judging that at described judging unit this terminal is unauthorized CSG user, carries out the predefined operation that reduces signal transmission power for triggering Home eNodeB.
A serving BS, this serving BS comprises:
Receiving element, the measurement report reporting for receiving terminal;
Trigger element, for carrying out the predefined operation that reduces signal transmission power for triggering Home eNodeB, this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB.
In this programme, when the terminal in Idle state is carried out community selection or gravity treatment, search signal Qiang community and be the community of Home eNodeB and judge this terminal be unauthorized CSG user after and after the measurement report that reports at receiving terminal of the serving BS of terminal, carry out the predefined operation that reduces signal transmission power for triggering Home eNodeB, thereby realized, trigger the object that Home eNodeB reduces signal transmission power, to reduce Home eNodeB, to being positioned at the unauthorized CSG user's of this base station range signal, disturb.
Accompanying drawing explanation
Fig. 1 is that hierarchical network signal of the prior art disturbs schematic diagram;
The method flow schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The other method schematic flow sheet that Fig. 3 provides for the embodiment of the present invention;
The another method flow schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The device structure schematic diagram that Fig. 5 provides for the embodiment of the present invention;
Another device structure schematic diagram that Fig. 6 provides for the embodiment of the present invention;
The another device structure schematic diagram that Fig. 7 provides for the embodiment of the present invention.
Embodiment
In order to reduce Home eNodeB, to being positioned at the unauthorized CSG user's of this base station range signal, disturb, the embodiment of the present invention provides a kind of Poewr control method of Home eNodeB, in this method, the information that Home eNodeB sends according to terminal or serving BS determines that being positioned at this base station range exists and be subject to after unauthorized CSG user that the signal of this Home eNodeB disturbs, triggering power is controlled, and reduces the signal transmission power of this Home eNodeB.
For Home eNodeB side:
As shown in Figure 2, the Poewr control method of the Home eNodeB that the embodiment of the present invention provides, specifically comprises the following steps:
Step 20: Home eNodeB determines whether to exist the unauthorized CSG user of the signal interference that is subject to this Home eNodeB; Unauthorized CSG user refers to the UE that is not authorized the CSG ID that this Home eNodeB is corresponding by network side.
Step 21: Home eNodeB, determining while there is described unauthorized CSG user, carries out power control, reduces the signal transmission power of this Home eNodeB.
In step 20, Home eNodeB determines whether to exist the unauthorized CSG user of the signal interference that is subject to this Home eNodeB, and its specific implementation can be as follows:
If Home eNodeB receive that the serving BS of terminal or terminal sends for notifying the first information that has unauthorized CSG user, determine and have unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user; Or,
Home eNodeB at the serving BS that receives terminal, send when determining whether to have the second information of unauthorized CSG user, according to the second information, determine whether to exist unauthorized CSG user.
The above-mentioned first information is specifically as follows:
Terminal in Idle state while carrying out community selection or gravity treatment, search signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, there is indication information in the connection request of sending or disturbed user; Or,
There is indication information in the disturbed user that the serving BS of terminal is sent, it is the serving BS of terminal while carrying the metrical information to Home eNodeB in receiving the measurement report of terminal to report and this measurement report that this disturbed user exists indication information, and the disturbed user of transmission exists indication information; Or,
The measurement report of this terminal that the serving BS of terminal is sent, this measurement report be the terminal in Idle state search while carrying out community selection or gravity treatment signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, to serving BS, send to measure and control configuring request, the measuring control information of returning according to serving BS is carried out affair, is meeting the measurement report reporting after measurement reports trigger condition.
In the present invention, while there is Home eNodeB identification information in terminal in the adjacent cell list that meets pre-configured trigger conditions and/or terminal, reporting measurement reports.
Above-mentioned the second information is: when the serving BS of terminal carries the metrical information of Home eNodeB in receiving the measurement report of terminal to report and this measurement report, and the signal level of interference to this terminal according to the RSRP in this metrical information and/or the definite Home eNodeB of RSRQ information; Concrete, if this RSRP and/or RSRQ are greater than predefined threshold value, determine that signal level of interference is high, otherwise, determine that signal level of interference is low.
Accordingly, above-mentionedly according to the second information, determine whether to exist described unauthorized CSG user, its specific implementation can be as follows:
If described signal level of interference meets and to impose a condition, Home eNodeB is determined and is had described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.This imposes a condition can be high for signal level of interference.
Above-mentioned the second information can also be: when the serving BS of terminal carries the metrical information of Home eNodeB in receiving the measurement report of terminal to report and this measurement report, and the RSRP in this metrical information and/or RSRQ information;
Accordingly, above-mentionedly according to the second information, determine whether to exist described unauthorized CSG user, its specific implementation can be as follows:
Home eNodeB is determined the signal level of interference of Home eNodeB to this terminal according to described RSRP and/or RSRQ information, if signal level of interference meets, imposes a condition, determine and have unauthorized CSG user, otherwise, determine and do not have unauthorized CSG user.Concrete, if this RSRP and/or RSRQ are greater than predefined threshold value, determine that signal level of interference is high, otherwise, determine that signal level of interference is low.This imposes a condition can be high for signal level of interference.
Preferably, in step 21 after Home eNodeB is determined and to be had unauthorized CSG user, and before reducing the signal transmission power of this Home eNodeB, first Home eNodeB can judge whether definite unauthorized CSG user's the number of times that exists of accumulation surpasses predefined number of times threshold value within the predefined time period; When the described number of times of judgement surpasses described number of times threshold value, just reduce the signal transmission power of this Home eNodeB.
Preferably, reduce the signal transmission power of this Home eNodeB in step 21 after, Home eNodeB can determine whether to meet predefined power on reset condition, when meeting described power on reset condition, will improve the signal transmission power of this Home eNodeB.
Above-mentioned power on reset condition can be:
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, again determine and exist unauthorized CSG user's number of times to be less than predefined trigger gate limit value; Or,
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, do not receive the power adjustment commands from other base stations; Or,
The end of the terminal that Home eNodeB measures lifting (IOT) value of making an uproar is less than predefined IOT threshold value; Or,
Home eNodeB receives the announcement information that corresponding terminal that the serving BS of unauthorized CSG user terminal sends leaves the coverage of Home eNodeB.
For end side:
Referring to Fig. 3, the embodiment of the present invention also provides a kind of power control triggering method, and the method comprises:
Step 30: when the terminal in Idle state searches signal Qiang community and is the community of Home eNodeB when carrying out community selection or gravity treatment, judge whether this terminal is unauthorized CSG user;
Step 31: terminal, after this terminal of judgement is unauthorized CSG user, is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB.
In step 30, judge whether this terminal is unauthorized CSG user, and its specific implementation can be as follows:
The CSG whether terminal judges self disposes in the system message with the Home eNodeB receiving identifies identical CSG sign, if so, determines that this terminal is for authorizing CSG user, otherwise, determine that this terminal is unauthorized CSG user; Or,
Terminal receives synchronizing signal, obtains the Physical Cell Identifier (PCI) of base station by resolving synchronizing signal, judges whether this PCI is the cell ID of Home eNodeB, if, determine that this terminal is unauthorized CSG user, otherwise, determine that this terminal is for authorizing CSG user.
In step 31, the predefined operation that reduces signal transmission power for triggering Home eNodeB can be:
To Home eNodeB transmission connection request or disturbed user, there is indication information; Or,
To the serving BS of this terminal, send to measure and control configuring request, the measuring control information of returning according to serving BS is carried out affair, and reports while triggering to serving base stations report measurement report meeting to measure.
Serving BS side for terminal:
Referring to Fig. 4, the embodiment of the present invention also provides a kind of power control triggering method, and the method comprises:
Step 40: the measurement report that the serving BS receiving terminal of terminal reports;
Step 41: serving BS is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB, and this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB.
In step 41, the operation that reduces signal transmission power for triggering Home eNodeB can be:
Serving BS, when terminal is the terminal in Idle state, sends to Home eNodeB by measurement report; Or,
Serving BS, when terminal is the terminal in connected state, sends disturbed user to Home eNodeB and has indication information; Or,
Serving BS, when terminal is the terminal in connected state, sends to Home eNodeB by the RSRP of the Home eNodeB carrying in measurement report and/or RSRQ information; Or, according to this RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to terminal, signal level of interference is sent to Home eNodeB.
If terminal is the terminal in Idle state, before the measurement report reporting at the serving BS receiving terminal of terminal, serving BS receives the measurement that terminal sends and controls configuring request, to the control information of terminal return measurement; Terminal is carried out affair according to this measuring control information, and meet to measure while reporting trigger condition to serving base stations report measurement report.
With specific embodiment, the present invention will be described below:
The object of the invention is auxiliary descending power control algorithm, solve descending covering problem.The core content of this patent is divided into two aspects, first be to select or reuse adoption process adds the existence that new agreement flow process detects the UE that is subject to free time (IDLE) state that the signal of HeNB disturbs by community, configure suitable measurement reported event and detect the existence that is subject to the UE under connection (CONNECTED) state that the signal of HeNB disturbs, thereby trigger power, controlling, is secondly that after power is controlled, how base station power resets.These two processes can both be controlled by auxiliary power, improve covering performance and the data rate of hierarchical network.
Concrete Poewr control method can be referring to the embodiment 1 in the auxiliary method for controlling downlink power > > of patent < < UE.The triggering that power is controlled can be that macro base station is initiated, and also can independently be initiated by Home eNodeB.
Embodiment mono-:
In the present embodiment, HeNB utilizes the UE that community is selected or reuse adoption process detection is disturbed by the signal of this HeNB around, and then trigger power and control, the UE being disturbed may be the UE (MUE) of macro base station service, may be also the UE (HUE) under the HeNB that near had CSG ID is different from the CSG ID of this HeNB.
In existing protocol flow process; community is selected or gravity treatment is user's behavior; there is no the communication between user and base station; base station does not know whether user resides in the community of oneself; in order to protect the user under IDLE state, need to introduce new agreement flow process, add UE to the resident connectivity request message of HeNB; or the indication information of UE to HeNB, to tell base station oneself nearby.Handling process is specific as follows:
Step 1: in IDLE state UE community select or reuse adoption process in measure RSRP, search signal Qiang community, supposes that signal Qiang community that this UE searches is the community of HeNB near;
Step 2:UE oneself is unauthorized CSG (non-CSG) user of HeNB according to the CSG ID in system message or the PCI judgement that parses from synchronizing signal, to HeNB transmission connection request or disturbed user, there is indication information, UE can get rid of the selection that HeNB continues next base station simultaneously, until reside in the community of certain base station;
Step 3:HeNB receives connection request or the disturbed user that non-CSG user sends and exists after indication information, determines that current existence is subject to the non-CSG user that the signal of this HeNB disturbs;
Step 4:HeNB, according to trigger condition, independently triggers power and controls, and reduces the signal transmission power of this HeNB.
Embodiment bis-:
In the present embodiment, in order to protect the user under IDLE state, introduce new agreement flow process, add UE and report process and the resident base station of (being the serving BS of UE) arrive the information process of transmitting of HeNB to resident base station.Concrete handling process is as follows:
Step 1: measure RSRP in the selection of IDLE state UE community or reuse adoption process, search signal Qiang community, if this UE searches the community that signal Qiang community is near HeNB, UE can get rid of the selection that HeNB continues next base station, until reside in the community of certain base station;
Step 2:UE sends to resident base station to measure and controls configuring request oneself being the non-CSG user of HeNB according to the CSG ID in system message or the PCI judgement that parses from synchronizing signal;
Step 3: resident base station receives to measure controls configuring request, to the control information of UE allocating and measuring; In measuring control information, comprise measuring amount and the measurement that UE need to measure and report trigger condition, measure while reporting trigger condition determining according to the measuring amount that measures to meet, UE can be carried at the measuring amount measuring and in measurement report, report resident base station;
Step 4:UE receives the laggard row affair of measuring control information;
Step 5: report trigger condition if meet to measure, UE reports resident base station by measurement report;
Step 6: resident base station sends to HeNB by interface by measurement report;
Because the community of HeNB is the signal Qiang community that UE searches, therefore the community of HeNB necessarily appears in the adjacent cell list of UE, therefore, UE is bound to the community of HeNB to measure according to measuring control information, in measurement report on UE, also will comprise the information of the community of HeNB, so, resident base station just can send to this HeNB by measurement report by interface;
Step 7:HeNB determines that according to the measurement report receiving current existence is subject to the non-CSG user of the signal interference of this HeNB, and then triggers power and control, and reduces the signal transmission power of this HeNB.
Embodiment tri-:
In the present embodiment, HeNB utilizes the measurement event such as A3, A4 to detect the UE (comprising unauthorized MUE or HUE) that disturbed by this HeNB signal around, confirms to have UE may be subject to after signal interference nearby, and HeNB triggers power and controls.Concrete handling process is as follows:
Step 1: when measurement reports trigger condition to be satisfied, UE sends measurement report to source base station (being the serving BS of UE);
Step 2: source base station directly sends disturbed user to target HeNB and has indication information, can realize by X2 mouth or S1 mouth the transmission of information;
The target HeNB here refers to that the HeNB carrying in measurement report identifies corresponding HeNB; If do not carry the information of HeNB in measurement report, do not need to carry out this step and subsequent step.
Step 3:HeNB receives disturbed user and has indication information, determines the non-CSG user that current existence is disturbed by the signal of HeNB;
Step 4:HeNB triggers power and controls, and reduces the signal transmission power of this HeNB.
Embodiment tetra-:
In the present embodiment, only by community selection/reselection process and measurement report, detect the existence of the UE (comprising unauthorized MUE or HUE) that is subject to the interference of HeNB signal, sometimes may cause than power adjustment more frequently, can consider some other condition, the condition that power control is triggered further limits.Concrete handling process is as follows:
Step 1: when measurement reports trigger condition to be satisfied, UE sends measurement report to source base station (being the serving BS of UE);
Step 2: source base station receives measurement report, determines the signal level of interference of HeNB to UE by the metrical information to HeNB of carrying in measurement report, and the information of this signal level of interference is sent to HeNB; Or source base station, by for determining that the relevant information of this signal level of interference sends to HeNB, is determined the signal level of interference of HeNB to UE by HeNB, information sends and can realize by X2 mouth or S1 mouth;
Here, can determine the signal level of interference of HeNB to UE according to RSRQ corresponding to the HeNB carrying in measurement report and/or RSRP information, for example, if the value of RSRP is higher than predefined RSRP threshold value, signal level of interference is high, otherwise signal level of interference is low; Again for example, if the value of RSRQ higher than predefined RSRQ threshold value, signal level of interference is high, otherwise signal level of interference is low; Again for example, if the value of RSRP higher than the value of predefined RSRQ threshold value and RSRQ higher than predefined RSRQ threshold value, signal level of interference is high, otherwise signal level of interference is low.
If step 3:HeNB receives the information of signal level of interference, according to signal level of interference, determine whether to exist the non-CSG user of the signal interference that is subject to this HeNB, if so, trigger power and control, reduce the signal transmission power of this HeNB;
If HeNB receives for determining the relevant information of this signal level of interference, according to this relevant information, determine the signal level of interference of HeNB to UE, determine that method and source base station determine that HeNB is identical to the method for the signal level of interference of UE; Then HeNB determines whether to exist the non-CSG user of the signal interference that is subject to this HeNB according to signal level of interference, if so, triggers power and controls, and reduces the signal transmission power of this HeNB.
Here, according to signal level of interference, determine whether to exist the non-CSG user's of the signal interference that is subject to this HeNB method to be: if signal level of interference is for high, determine the non-CSG user who has the signal interference that is subject to this HeNB, if signal level of interference is low, determine the non-CSG user who does not have the signal interference that is subject to this HeNB.
Embodiment five:
In the present embodiment, judge the unauthorized CSG user's of the signal interference that is subject to HeNB existence by adjusting A3 event detection, information sends and realizes by X2 mouth or S1 mouth.Concrete handling process is as follows:
The serving BS of step 1:UE, to UE configuration A3 event, can be adjusted parameter in A3 event before configuration, to reduce to measure, reports triggering thresholding, for example, improve measurement corresponding to A3 event and report the deviant (offset) in trigger condition;
Step 2:UE measures information of adjacent cells;
Step 3: report trigger condition if meet measurement corresponding to A3 event, UE reporting measurement reports, does not report trigger condition if do not meet measurement corresponding to A3 event, but found the existence of HeNB in the adjacent cell list of UE, the same reporting measurement reports of UE;
Step 4: source base station sends disturbed user based on measurement report to target HeNB and has indication information;
The target HeNB here refers to that the HeNB carrying in measurement report identifies corresponding HeNB.
There is indication information in the disturbed user that step 5: target HeNB sends according to source base station, determines the non-CSG user who has the signal interference that is subject to this HeNB;
Step 6:HeNB triggers power and controls, and reduces the signal transmission power of this HeNB.
In above-described embodiment 3-5, in the information that serving BS sends to HeNB, can comprise the identification information of UE, after HeNB determines according to identification information whether this UE is the unauthorized CSG user of this HeNB, if, carry out the step that power is controlled, otherwise, the step that power is controlled do not carried out.
In above-mentioned five embodiment, likely can exist to be subject to non-CSG user that the signal of HeNB disturbs to judge inaccurate or to be disturbed the instantaneous situation near leaving after HeNB of UE, can cause like this process of the frequent Modulating Power of HeNB.In order to alleviate this problem, can consider access request frequency, duration of disturbance, or consider other conditions etc. and determine whether to trigger power and control.Concrete processing can be as follows:
HeNB arranges a timer sum counter.In time window, often receive disturbed user and have indication, counter just adds 1.In time window, when counter values reaches certain value, trigger power and control, reduce the signal transmission power of this HeNB.Timer time arrives, counter O reset.
In above-mentioned five embodiment, when entering the non-CSG user of HeNB when leaving gradually the service range of HeNB, now just require HeNB meeting under the prerequisite of this non-CSG user performance, bring to power or revert to full power gradually, carry out power on reset, to promote performance and the speed of user under HeNB.The mode that power on reset can adopt macro base station indication HeNB to reset, also can adopt HeNB from the mode of master reset.Power on reset specifically can adopt following four kinds of embodiment:
Embodiment mono-:
Timer Controlling mode is recovered power.
After HeNB triggers power and controls, start timer and also configure a time window, in time window, again do not trigger power and control, or the number of times triggering is less than certain threshold value, HeNB carries out power on reset.
Embodiment bis-:
If the power control command that HeNB sends according to macro base station or other HeNB carries out power control, when HeNB does not receive power control command in time window, HeNB carries out power on reset.This time window is to trigger at HeNB the time window configuring after power is controlled.
Embodiment tri-:
Event triggered mode is recovered power.
When the power of HeNB, control and affected by Event triggered, as A3, the events such as A4, when meeting event and leave condition, the serving BS (macro base station or HeNB) that is disturbed UE leaves the announcement information of Home eNodeB to target HeNB transmitting terminal, target HeNB, after receiving announcement information, carries out power on reset.Or, target HeNB is after receiving announcement information, whether all users when event arrives before judgement have all met event is left condition, whether receive the announcement information that corresponding terminal that the serving BS of whole unauthorized CSG user terminals sends leaves the coverage of Home eNodeB, if so, carry out power on reset.
Embodiment tetra-:
According to uplink interference information, suitable Modulating Power.
HeNB measures the user's of this base station of ownership up IOT, if IOT is less than predefined IOT threshold value, can carry out power on reset, such as the power of suitable lifting HeNB, to promote the speed of its home subscriber.
As shown in Figure 1, the embodiment of the present invention also provides a kind of wireless communication system, and this system comprises:
Home eNodeB, for determining whether to exist the unauthorized close subscriber group CSG user of the signal interference that is subject to this Home eNodeB; Determining while there is described unauthorized CSG user, reducing the signal transmission power of this Home eNodeB;
Terminal, while being the community of Home eNodeB for search signal Qiang community when carrying out community selection or gravity treatment, judges whether this terminal is unauthorized close subscriber group CSG user; After this terminal of judgement is unauthorized CSG user, carry out the predefined operation that reduces signal transmission power for triggering Home eNodeB;
Serving BS, the measurement report reporting for receiving terminal, carries out the predefined operation that reduces signal transmission power for triggering Home eNodeB, and this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB.This serving BS can be macro base station or other Home eNodeB.
Referring to Fig. 5, the embodiment of the present invention also provides a kind of Home eNodeB, can be applied in above-mentioned wireless communication system, and this Home eNodeB comprises:
Determining unit 50, for determining whether to exist the unauthorized close subscriber group CSG user of the signal interference that is subject to this Home eNodeB;
Described determining unit 50 for:
If receive, the serving BS of terminal or terminal sends for notifying the first information that has described unauthorized CSG user, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user; Or,
At the serving BS that receives terminal, send when determining whether to have the second information of described unauthorized CSG user, according to the second information, determine whether to exist described unauthorized CSG user.
The described first information is:
Terminal in Idle state while carrying out community selection or gravity treatment, search signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, there is indication information in the connection request of sending or disturbed user; Or,
There is indication information in the disturbed user that the serving BS of terminal is sent, it is the serving BS of terminal while carrying the metrical information to Home eNodeB in receiving the measurement report of terminal to report and this measurement report that this disturbed user exists indication information, and the disturbed user of transmission exists indication information; Or,
The measurement report of this terminal that the serving BS of terminal is sent, this measurement report be the terminal in Idle state search while carrying out community selection or gravity treatment signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, to serving BS, send to measure and control configuring request, and the measuring control information of returning according to serving BS is carried out the measurement report reporting after affair.
Described determining unit 50 for:
In described the second information, be: the serving BS of terminal is according to the reference symbol received power RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or reference symbol quality of reception RSRQ information, definite Home eNodeB is during to the signal level of interference of this terminal, judge that whether described signal level of interference meets and impose a condition, if, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
Described determining unit 50 for:
In described the second information, be: when the RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or RSRQ information, according to described RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to this terminal, judging that described signal level of interference meets imposes a condition, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
This Home eNodeB also comprises:
Described power control unit 51 for:
When the described number of times of judgement surpasses described number of times threshold value, reduce the signal transmission power of this Home eNodeB.
Described power control unit 51 also for:
After reducing the signal transmission power of this Home eNodeB, determine whether to meet predefined power on reset condition, when meeting described power on reset condition, will improve the signal transmission power of this Home eNodeB.
Described power on reset condition is:
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, again determine and exist unauthorized CSG user's number of times to be less than predefined trigger gate limit value; Or,
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, do not receive the power adjustment commands from other base stations; Or,
The end of the terminal that Home eNodeB measures lifting (IOT) value of making an uproar is less than predefined IOT threshold value; Or,
Home eNodeB receives the announcement information that corresponding terminal that the serving BS of part or all of unauthorized CSG user terminal sends leaves the coverage of Home eNodeB.
Referring to Fig. 6, the embodiment of the present invention also provides a kind of terminal, can be applied in above-mentioned wireless communication system, and this terminal comprises:
Judging unit 60, while being the community of Home eNodeB for search signal Qiang community when Idle state carries out community selection or gravity treatment in this terminal, judges whether this terminal is unauthorized close subscriber group CSG user;
Described predefined for triggering being operating as of Home eNodeB reduction signal transmission power:
To Home eNodeB transmission connection request or disturbed user, there is indication information; Or,
To the serving BS of this terminal, send to measure and control configuring request, the measuring control information of returning according to serving BS is carried out affair, and reports while triggering to serving base stations report measurement report meeting to measure.
Described judging unit 60 for:
Judge that the CSG whether terminal disposes in the system message with the Home eNodeB receiving identifies identical CSG sign, if so, determine that this terminal is for authorizing CSG user, otherwise, determine that this terminal is unauthorized CSG user; Or,
Receive synchronizing signal, by resolving synchronizing signal, obtain the Physical Cell Identifier (PCI) of base station, judge whether this PCI is the cell ID of Home eNodeB, if so, determine that this terminal is unauthorized CSG user, otherwise, determine that this terminal is for authorizing CSG user.
Referring to Fig. 7, the embodiment of the present invention also provides a kind of serving BS, can be applied in above-mentioned wireless communication system, and this serving BS comprises:
Receiving element 70, the measurement report reporting for receiving terminal;
Described trigger element 71 for:
When terminal is the terminal in Idle state, described measurement report is sent to Home eNodeB; Or,
When terminal is the terminal in connected state, to Home eNodeB, sends disturbed user and have indication information; Or,
When terminal is the terminal in connected state, the RSRP of the Home eNodeB carrying in described measurement report and/or RSRQ information are sent to Home eNodeB; Or, according to described RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to terminal, described signal level of interference is sent to Home eNodeB.
This serving BS also comprises:
Described receiving element 70 for:
Receiving terminal carries out the measurement report reporting after affair according to described measuring control information.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, Home eNodeB determines whether to exist and is subject to the unauthorized CSG user that the signal of this Home eNodeB disturbs, and is determining while there is unauthorized CSG user, reduces the signal transmission power of this Home eNodeB.Because unauthorized CSG user can not be switched to this Home eNodeB in the signal strength signal intensity of Home eNodeB during far away higher than the signal strength signal intensity of macro base station yet, therefore unauthorized CSG user can be subject to the strong jamming from Home eNodeB, the present invention is by reducing the signal transmission power of Home eNodeB, can effectively reduce Home eNodeB and disturb being positioned at the unauthorized CSG user's of this base station range signal, and then effectively improve covering performance and the data rate of hierarchical network.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (23)
1. a Poewr control method for Home eNodeB, is characterized in that, the method comprises:
Home eNodeB determines whether to exist the unauthorized close subscriber group CSG user of the signal interference that is subject to this Home eNodeB, and unauthorized CSG user refers to the terminal that is not awarded the CSG sign that Home eNodeB is corresponding;
Home eNodeB is being determined while there is described unauthorized CSG user, is being reduced the signal transmission power of this Home eNodeB;
Wherein, described Home eNodeB determines whether to exist and is subject to the unauthorized CSG user that the signal of this Home eNodeB disturbs and comprises: if receive, the serving BS of terminal or terminal sends for notifying the first information that has described unauthorized CSG user, determines and has described unauthorized CSG user; Or, at the serving BS that receives terminal, send when determining whether to have the second information of described unauthorized CSG user, according to the second information, determine whether to exist described unauthorized CSG user.
2. the method for claim 1, is characterized in that, the described first information is:
There is indication information in the connection request of sending in the terminal of Idle state or disturbed user, this connection request or disturbed user exist indication information be described terminal when carrying out community selection or gravity treatment, search signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, there is indication information in the connection request of sending or disturbed user; Or,
There is indication information in the disturbed user that the serving BS of terminal is sent, it is the serving BS of terminal while carrying the metrical information to Home eNodeB in receiving the measurement report of terminal to report and this measurement report that this disturbed user exists indication information, and the disturbed user of transmission exists indication information; Or,
The measurement report of this terminal that the serving BS of terminal is sent, this measurement report be the terminal in Idle state search while carrying out community selection or gravity treatment signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, according to the measuring control information of serving BS configuration, carry out the measurement report reporting after affair.
3. the method for claim 1, it is characterized in that, described the second information is: the serving BS of terminal is according to the reference symbol received power RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or reference symbol quality of reception RSRQ information, the signal level of interference of definite Home eNodeB to this terminal;
Describedly according to the second information, determine whether to exist described unauthorized CSG user to comprise:
If described signal level of interference meets and to impose a condition, Home eNodeB is determined and is had described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
4. the method for claim 1, is characterized in that, described the second information is: the RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or RSRQ information;
Describedly according to the second information, determine whether to exist described unauthorized CSG user to comprise:
Home eNodeB is determined the signal level of interference of Home eNodeB to this terminal according to described RSRP and/or RSRQ information, if meeting, described signal level of interference imposes a condition, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
5. the method for claim 1, is characterized in that, after Home eNodeB is determined and to be had described unauthorized CSG user, and before reducing the signal transmission power of this Home eNodeB, the method further comprises:
Home eNodeB judgement accumulation within the predefined time period determines to exist described unauthorized CSG user's number of times whether to surpass predefined number of times threshold value;
The signal transmission power of described this Home eNodeB of reduction comprises:
Home eNodeB, when the described number of times of judgement surpasses described number of times threshold value, reduces the signal transmission power of this Home eNodeB.
6. as the method as described in arbitrary in claim 1-5, it is characterized in that, after reducing the signal transmission power of this Home eNodeB, the method further comprises:
Home eNodeB determines whether to meet predefined power on reset condition, when meeting described power on reset condition, improves the signal transmission power of this Home eNodeB.
7. method as claimed in claim 6, is characterized in that, described power on reset condition is:
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, again determine and exist unauthorized CSG user's number of times to be less than predefined trigger gate limit value; Or,
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, do not receive the power adjustment commands from other base stations; Or,
The end of the terminal that Home eNodeB the measures lifting IOT value of making an uproar is less than predefined IOT threshold value; Or,
Home eNodeB receives the announcement information that corresponding terminal that the serving BS of unauthorized CSG user terminal sends leaves the coverage of Home eNodeB.
8. power is adjusted a triggering method, it is characterized in that, the method comprises:
When the terminal in Idle state searches signal Qiang community and is the community of Home eNodeB when carrying out community selection or gravity treatment, judge whether this terminal is unauthorized close subscriber group CSG user;
Terminal, after this terminal of judgement is unauthorized CSG user, is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB;
Wherein, described predefined for triggering being operating as of Home eNodeB reduction signal transmission power: to Home eNodeB transmission connection request or disturbed user, to have indication information; Or, to the serving BS of this terminal, sending to measure and control configuring request, the measuring control information of returning according to serving BS is carried out affair, and measures while reporting trigger condition to serving base stations report measurement report meeting.
9. method as claimed in claim 8, is characterized in that, describedly judges whether this terminal is that unauthorized CSG user comprises:
The CSG whether terminal judges self disposes in the system message with the Home eNodeB receiving identifies identical CSG sign, if so, determines that this terminal is for authorizing CSG user, otherwise, determine that this terminal is unauthorized CSG user; Or,
Terminal receives synchronizing signal, obtains the Physical Cell Identifier PCI of base station by resolving synchronizing signal, judges whether this PCI is the cell ID of Home eNodeB, if so, determines that this terminal is unauthorized CSG user, otherwise, determine that this terminal is for authorizing CSG user.
10. power is adjusted a triggering method, it is characterized in that, the method comprises:
The measurement report that the serving BS receiving terminal of terminal reports;
Serving BS is carried out the predefined operation that reduces signal transmission power for triggering Home eNodeB, and this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB;
Wherein, described for triggering being operating as of Home eNodeB reduction signal transmission power: when terminal is the terminal in Idle state, described measurement report to be sent to Home eNodeB; Or, when terminal is the terminal in connected state, to Home eNodeB, sends disturbed user and have indication information; Or, when terminal is the terminal in connected state, the reference symbol received power RSRP of the Home eNodeB carrying in described measurement report and/or reference symbol quality of reception RSRQ information are sent to Home eNodeB; Or, according to described RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to terminal, described signal level of interference is sent to Home eNodeB.
11. methods as claimed in claim 10, is characterized in that, if terminal is the terminal in Idle state, before the measurement report reporting at the serving BS receiving terminal of terminal, the method further comprises:
Serving BS receives the measurement that terminal sends and controls configuring request, to the control information of terminal return measurement, with indicating terminal, according to described measuring control information, carries out affair, and measures while reporting trigger condition to serving base stations report measurement report meeting.
12. 1 kinds of Home eNodeB, is characterized in that, this Home eNodeB comprises:
Determining unit, at the serving BS that receives terminal or terminal, send when notifying the first information that has unauthorized CSG user, determine to exist to be subject to the unauthorized CSG user that the signal of this Home eNodeB disturbs; Or, at the serving BS that receives terminal, send when determining whether to have the second information of described unauthorized CSG user, according to the second information, determine whether to exist the CSG user of the signal interference that is subject to this Home eNodeB, described unauthorized CSG user refers to the terminal that is not awarded the CSG sign that Home eNodeB is corresponding;
Power control unit, while there is described unauthorized CSG user for determining in described determining unit, reduces the signal transmission power of this Home eNodeB.
13. Home eNodeB as claimed in claim 12, is characterized in that, described determining unit is used for:
If receive, the serving BS of terminal or terminal sends for notifying the first information that has described unauthorized CSG user, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user; Or,
At the serving BS that receives terminal, send when determining whether to have the second information of described unauthorized CSG user, according to the second information, determine whether to exist described unauthorized CSG user.
14. Home eNodeB as claimed in claim 13, is characterized in that, the described first information is:
There is indication information in the connection request of sending in the terminal of Idle state or disturbed user, this connection request or disturbed user exist indication information be described terminal when carrying out community selection or gravity treatment, search signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, there is indication information in the connection request of sending or disturbed user; Or,
There is indication information in the disturbed user that the serving BS of terminal is sent, it is the serving BS of terminal while carrying the metrical information to Home eNodeB in receiving the measurement report of terminal to report and this measurement report that this disturbed user exists indication information, and the disturbed user of transmission exists indication information; Or,
The measurement report of this terminal that the serving BS of terminal is sent, this measurement report be the terminal in Idle state search while carrying out community selection or gravity treatment signal Qiang community be the community of Home eNodeB and judge that this terminal is unauthorized CSG user after, according to the measuring control information of serving BS configuration, carry out the measurement report reporting after affair.
15. Home eNodeB as claimed in claim 13, is characterized in that, described determining unit is used for:
In described the second information, be: the serving BS of terminal is according to the reference symbol received power RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or reference symbol quality of reception RSRQ information, definite Home eNodeB is during to the signal level of interference of this terminal, judge that whether described signal level of interference meets and impose a condition, if, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
16. Home eNodeB as claimed in claim 13, is characterized in that, described determining unit is used for:
In described the second information, be: when the RSRP of the Home eNodeB carrying in the measurement report of terminal to report and/or RSRQ information, according to described RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to this terminal, judging that described signal level of interference meets imposes a condition, determine and have described unauthorized CSG user, otherwise, determine and do not have described unauthorized CSG user.
17. Home eNodeB as claimed in claim 12, is characterized in that, this Home eNodeB also comprises:
Trigger judging unit, for after determining in described determining unit and having described unauthorized CSG user, and before described power control unit reduces the signal transmission power of this Home eNodeB, judgement accumulation within the predefined time period determines to exist described unauthorized CSG user's number of times whether to surpass predefined number of times threshold value;
Described power control unit is used for:
When the described number of times of judgement surpasses described number of times threshold value, reduce the signal transmission power of this Home eNodeB.
18. as the Home eNodeB as described in arbitrary in claim 12-17, it is characterized in that, described power control unit also for:
After reducing the signal transmission power of this Home eNodeB, determine whether to meet predefined power on reset condition, when meeting described power on reset condition, will improve the signal transmission power of this Home eNodeB.
19. Home eNodeB as claimed in claim 18, is characterized in that, described power on reset condition is:
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, again determine and exist unauthorized CSG user's number of times to be less than predefined trigger gate limit value; Or,
In the setting-up time section of Home eNodeB after the signal transmission power that reduces this Home eNodeB, do not receive the power adjustment commands from other base stations; Or,
The end of the terminal that Home eNodeB the measures lifting IOT value of making an uproar is less than predefined IOT threshold value; Or,
Home eNodeB receives the announcement information that corresponding terminal that the serving BS of unauthorized CSG user terminal sends leaves the coverage of Home eNodeB.
20. 1 kinds of terminals, is characterized in that, this terminal comprises:
Judging unit, while being the community of Home eNodeB for search signal Qiang community when Idle state carries out community selection or gravity treatment in this terminal, judges whether this terminal is unauthorized close subscriber group CSG user;
Trigger element, after judging that at described judging unit this terminal is unauthorized CSG user, carries out the predefined operation that reduces signal transmission power for triggering Home eNodeB;
Wherein, described predefined for triggering being operating as of Home eNodeB reduction signal transmission power: to Home eNodeB transmission connection request or disturbed user, to have indication information; Or, to the serving BS of this terminal, sending to measure and control configuring request, the measuring control information of returning according to serving BS is carried out affair, and measures while reporting trigger condition to serving base stations report measurement report meeting.
21. terminals as claimed in claim 20, is characterized in that, described judging unit is used for:
Judge that the CSG whether terminal disposes in the system message with the Home eNodeB receiving identifies identical CSG sign, if so, determine that this terminal is for authorizing CSG user, otherwise, determine that this terminal is unauthorized CSG user; Or,
Receive synchronizing signal, by resolving synchronizing signal, obtain the Physical Cell Identifier PCI of base station, judge whether this PCI is the cell ID of Home eNodeB, if so, determine that this terminal is unauthorized CSG user, otherwise, determine that this terminal is for authorizing CSG user.
22. 1 kinds of serving BSs, is characterized in that, this serving BS comprises:
Receiving element, the measurement report reporting for receiving terminal;
Trigger element, for carrying out the predefined operation that reduces signal transmission power for triggering Home eNodeB, this Home eNodeB is that the Home eNodeB carrying in described measurement report identifies corresponding Home eNodeB;
Wherein, predefined for triggering being operating as of Home eNodeB reduction signal transmission power: when terminal is the terminal in Idle state, described measurement report to be sent to Home eNodeB; Or, when terminal is the terminal in connected state, to Home eNodeB, sends disturbed user and have indication information; Or, when terminal is the terminal in connected state, the RSRP of the Home eNodeB carrying in described measurement report and/or RSRQ information are sent to Home eNodeB; Or, according to described RSRP and/or RSRQ information, determine the signal level of interference of Home eNodeB to terminal, described signal level of interference is sent to Home eNodeB.
23. serving BSs as claimed in claim 22, is characterized in that, this serving BS also comprises:
Measure dispensing unit, for when receiving the measurement control configuring request of sending in the terminal of Idle state, to the control information of terminal return measurement;
Described receiving element is used for:
Receiving terminal carries out the measurement report reporting after affair according to described measuring control information.
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| CN107431944B (en) * | 2015-03-16 | 2021-06-11 | 株式会社Ntt都科摩 | Terminal, base station, wireless communication system, and communication method |
| CN110072249B (en) * | 2018-01-23 | 2020-12-04 | 大唐移动通信设备有限公司 | Method and device for detecting base station interference |
| CN114567892A (en) * | 2020-11-27 | 2022-05-31 | 展讯通信（上海）有限公司 | Access point interference coordination method, base station, user equipment and readable storage medium |
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