Abstract:
An apparatus and a method for a wireless communication network. The apparatus includes circuitry configured for acquiring the first information associated with an indicator indicating communication quality of user terminals served by an interfering base station; acquiring second information associated with an indicator indicating interfered degree of user terminals interfered by the interfering base station; configuring, based on the first information and the second information, transmission of the interfering base station for inter-base station coordination. The technical solution improves the overall performance of the wireless communication heterogeneous network.

Description:
FIELD OF THE INVENTION 
       [0001]    The present disclosure relates generally to the field of wireless communication, and more particularly, to an apparatus for configuring Almost Blank Subframe (ABS) in a wireless communication heterogeneous network, a wireless communication heterogeneous network, and a method for configuring Almost Blank Subframe (ABS) in a wireless communication heterogeneous network. 
       BACKGROUND OF THE INVENTION 
       [0002]    In long term evolution-advanced (LTE-A) of universal mobile telecommunications system (UMTS), higher requirements are put forward on the performance of cell-edge users. For example, in the scenario in which a macro base station and a home base station coexist in a LTE-A system, if the home base station adopts a way of closed user group access, the edge user that is not in access list and is served by the macro base station will be interfered with seriously, or even cannot be served at all. The application of almost blank subframe (ABS) technology in this kind of scenarios greatly improves the performance of edge users of the macro base station, and has become a focus of LTE-A interference coordination research. 
         [0003]    The ABS technology inserts ABSs in normal subframes transmitted by the base station as an interference source according to design pattern. The configuration performed on ABSs includes configuring three parameters of silence ratio of ABS, transmission power reduction amount of ABS, and design pattern. In ABS, the transmission power of an interfering base station is set to zero or other predetermined reduction amount according to configured parameters, thus to reduce interference on the edge user that is not served by the interfering base station but is served by an interfered base station, so as to improve the edge performance of the interfered base station. 
       SUMMARY OF THE INVENTION 
       [0004]    However, the current ABS technology inevitably brings about loss of total throughput of the interfering base station when the edge performance of the interfered base station is improved. The current ABS technology adopts an overall configuration scheme when configuring parameters of ABS, as a result, a better configuration can only be realized based on overall evaluation, and the ABS is not configured according to specific situation, thus, a tradeoff between the edge performance of the interfered base station and the total throughput of the interfering base station is not made according to specific situation. 
         [0005]    Accordingly, there is a need to provide an apparatus for configuring ABS in a wireless communication heterogeneous network, a wireless communication heterogeneous network, and a method for configuring ABS in a wireless communication heterogeneous network, thus to configure ABS according to specific situation, and make a tradeoff between the edge performance of the interfered base station and the total throughput of the interfering base station, so as to improve the overall performance of the wireless communication heterogeneous network. 
         [0006]    According to an embodiment of the present disclosure, there is provided an apparatus for configuring Almost Blank Subframe (ABS) in a wireless communication heterogeneous network, comprising: a first information acquisition unit, configured to acquire first information associated with an indicator indicating communication quality of user terminals served by an interfering base station; a second information acquisition unit, configured to acquire second information associated with an indicator indicating interfered degree of user terminals interfered by the interfering base station; and a configuration unit, configured to configure, based on the first information and the second information, the ABS sent by the interfering base station by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0007]    According to another embodiment of the present disclosure, there is further provided a wireless communication heterogeneous network, comprising: a first base station comprising a first information acquisition unit and a configuration unit, and a second base station comprising a second information acquisition unit. The first information acquisition unit is configured to acquire first information associated with an indicator indicating communication quality of user terminals served by the first base station. The second information acquisition unit is configured to acquire second information associated with an indicator indicating interfered degree of user terminals served by the second base station and interfered by the first base station. The configuration unit is configured to configure, based on the first information and the second information, the ABS sent by the first base station by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0008]    According to another embodiment of the present disclosure, there is further provided a wireless communication heterogeneous network, comprising: a first base station comprising a first information acquisition unit and a second base station comprising a second information acquisition unit and a configuration unit. The first information acquisition unit is configured to acquire first information associated with an indicator indicating communication quality of user terminals served by the first base station. The second information acquisition unit is configured to acquire second information associated with an indicator indicating interfered degree of user terminals served by the second base station and interfered by the first base station. The configuration unit is configured to configure, based on the first information and the second information, the ABS sent by the first base station by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0009]    According to still another embodiment of the present disclosure, there is further provided a method for configuring Almost Blank Subframe (ABS) in a wireless communication heterogeneous network, comprising: acquiring first information associated with an indicator indicating communication quality of a user terminal served by an interfering base station; acquiring second information associated with an indicator indicating interfered degree of a user terminal interfered by the interfering base station; and configuring, based on the first information and the second information, the ABS sent by the interfering base station by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0010]    According to still another embodiment of the present disclosure, there is further provided a program causing a computer to execute the following steps: acquiring first information associated with an indicator indicating communication quality of a user terminal served by an interfering base station; acquiring second information associated with an indicator indicating interfered degree of a user terminal and interfered by the interfering base station; and configuring, based on the first information and the second information, the ABS sent by the interfering base station by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0011]    According to an embodiment of the present disclosure, there is further provided a corresponding computer readable storage medium on which a program that can be executed by a computing device is stored, when being executed, the program can cause the computing apparatus to execute the above method. 
         [0012]    The provided apparatus for configuring ABS in a wireless communication heterogeneous network, the wireless communication heterogeneous network, and the method for configuring ABS in a wireless communication heterogeneous network according to embodiments of the present disclosure can configure the ABS according to specific situation, considering both the performance of the user terminal served by the interfering base station and the performance of the user terminal interfered with by the interfering base station, thus to improve overall performance of the wireless communication heterogeneous network. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0013]      FIG. 1  is a schematic diagram illustrating an example of the apparatus for configuring ABS in a wireless communication heterogeneous network according to an embodiment of the present disclosure; 
           [0014]      FIG. 2  is a schematic diagram illustrating an example of the parameter table including predetermined parameter pairs consisted of silence ratio and power reduction amount of ABS according to an embodiment of the present disclosure; 
           [0015]      FIG. 3  is a schematic diagram illustrating another example of the parameter table including predetermined parameter pairs consisted of silence ratio and power reduction amount of ABS according to an embodiment of the present disclosure; 
           [0016]      FIG. 4  is a schematic diagram illustrating an example of the wireless communication heterogeneous network according to an embodiment of the present disclosure; 
           [0017]      FIG. 5  is a schematic diagram illustrating another example of the wireless communication heterogeneous network according to an embodiment of the present disclosure; 
           [0018]      FIG. 6  is a flowchart illustrating the method for configuring ABS in a wireless communication heterogeneous network according to an embodiment of the present disclosure; 
           [0019]      FIG. 7  is a schematic diagram illustrating a specific application example of the embodiment of the present disclosure; 
           [0020]      FIG. 8  is a schematic diagram illustrating how to configure the ABS of an interfering base station in the example of  FIG. 7 ; 
           [0021]      FIG. 9  is a schematic diagram illustrating another specific application example of the embodiment of the present disclosure; and 
           [0022]      FIG. 10  is a schematic diagram illustrating an example of the hardware configuration according to an embodiment of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0023]    Hereinafter, preferred embodiments of the present disclosure will be described in conjunction with the accompanying drawings, and thus other objects, features, and advantages of the technique disclosed in this specification will become more apparent. 
         [0024]    The following description will be performed in the following order: 
         [0025]    1. Apparatus for configuring ABS in a wireless communication heterogeneous network 
         [0026]    2. Wireless communication heterogeneous network 
         [0027]    3. Method for configuring ABS in a wireless communication heterogeneous network 
         [0028]    4. Specific examples 
         [0029]    5. Hardware configuration example 
       1. Apparatus for Configuring ABS in a Wireless Communication Heterogeneous Network 
       [0030]      FIG. 1  illustrates apparatus  10  for configuring ABS in a wireless communication heterogeneous network according to an embodiment of the present disclosure. The apparatus  10  includes a first information acquisition unit  101 , a second information acquisition unit  102  and a configuration unit  103 . 
         [0031]    In addition,  FIG. 1  illustrates an interfering base station  20 , a user terminal  21  served by the interfering base station  20 , a interfered user terminal  31 , and a base station  30  that provides service to the interfered user terminal  31 . The interfering base station  20  and the base station  30  serving the user terminal  31  constitute a heterogeneous wireless communication network. Herein, the term “heterogeneous network” refers to a network including different types of base stations, which may be a macro base station, home base station, pico (Pico) base station, or other suitable type of base station. 
         [0032]    It should be noted that, the user terminal  21  served by the interfering base station  20  may be one or more terminals, and are referred collectively as the user terminal  21  herein. Similarly, the interfered user terminal  31  may be one or more terminals, and are referred collectively as the user terminal  31 . The user terminal may be a mobile phone, notebook computer, desktop personal computer or other suitable type of user terminal having a communication function. 
         [0033]    The first information acquisition unit  101  is configured to acquire a first information, the first information is associated with an indicator indicating the communication quality of the user terminal  21 , and can be, for example, the indicator indicating the communication quality of the user terminal  21  itself or a value obtained based on the indicator. 
         [0034]    The second information acquisition unit  102  is configured to acquire a second information, the second information is associated with an indicator indicating the interfered degree of the user terminal  31 , and can be, for example, the indicator indicating the interfered degree of the user terminal  31  itself or a value obtained based on the indicator. 
         [0035]    The configuration unit  103  is configured to configure, based on the first information and the second information, the ABS sent by the interfering base station  20  by adjusting at least one of silence ratio and power reduction amount of ABS. 
         [0036]    Those skilled in the art should understand that, the apparatus  10  can be disposed independently of the interfering base station  20  and the base station  30 , or can be disposed inside the interfering base station  20  or the base station  30 , in addition, a part of the apparatus  10  can be disposed in the interfering base station  20 , and the other part of the apparatus  10  can be disposed in the base station  30 . Furthermore, the entire apparatus  10  can be disposed in the interfering base station  20 , wherein, the second information acquisition unit  102  acquires the second information through the communication between the interfering base station  20  and the base station  30  via X2 interface, for example. As another possible way, the entire apparatus  10  can be disposed in the base station  30 , wherein, the first information acquisition unit  101  acquires the first information through the communication between the interfering base station  20  and the base station  30  via X2 interface, for example, and the configuration unit  103  performs configuration on ABS sent by the interfering base station  20  through the communication between the interfering base station  20  and the base station  30  via X2 interface, for example. Therefore, a base station comprising the apparatus  10  is disclosed according to an embodiment of the present disclosure. 
         [0037]    Preferably, the indicator indicating the communication quality of the user terminal  21  can be associated with at least one of the Reference Signal Receiving Power (RSRP), the communication quality indicator (CQI), the Reference Signal Receiving Power based on the channel state information (CSI-RSRP), and the coupling loss of link when the user terminal  21  is receiving the signal from the interfering base station  20 . In other words, the indicator can be associated with only one of the Reference Signal Receiving Power, the communication quality indicator, the Reference Signal Receiving Power based on the channel state information, and the coupling loss of link when the user terminal  21  is receiving the signal from the interfering base station  20 , or can be associated with any number of them, for example, it can be a weighted sum of a plurality of the parameters. 
         [0038]    It should be noted that, the indicator indicating the communication quality of the user terminal  21  can be associated with the Reference Signal Receiving Power in the previous versions of 3GPP Release 10, for example, the Reference Signal herein may be a cell-specific reference signal (CRS). However, since the usage of reception power with respect to the cell-specific reference signal cannot satisfy the channel measurement in heterogeneous network scenarios in 3GPP Release 10 and later versions and in the new carrier type, the indicator indicating the communication quality of the user terminal  21  can be associated with the Reference Signal Receiving Power based on the channel state information in these scenarios. 
         [0039]    Those skilled in the art should understand that the indicator indicating the communication quality of the user terminal  21  can also be associated with other suitable parameters. 
         [0040]    Additionally, the indicator indicating the communication quality of the user terminal  21  can be measured by the user terminal  21  and provided to the interfering base station  20 . The interfering base station  20  provides the first information associated with the indicator to the configuration unit  103 . Specially, when the configuration unit  103  is disposed in the base station  30 , the interfering base station  20  provides the first information to the configuration unit  103  through the communication between base stations via X2 interface, for example. 
         [0041]    Those skilled in the art should understand that, the indicator indicating the communication quality of the user terminal  21  can also be measured in other ways, for example, be measured by the interfering base station  20 . 
         [0042]    Preferably, the indicator indicating interfered degree of the user terminal  31  can be associated with at least one of the Reference Signal Receiving Power, the communication quality indicator, the Reference Signal Receiving Power based on the channel state information, and the coupling loss of link when the user terminal  31  is receiving the signal from the interfering base station  20 . In other words, the indicator can be associated with only one of the Reference Signal Receiving Power, the communication quality indicator, the Reference Signal Receiving Power based on the channel state information, and the coupling loss of link when the user terminal  31  is receiving the signal from the interfering base station  20 , or can be associated with any number of them, for example, can be a weighted sum of a plurality of parameters. 
         [0043]    As mentioned above, the indicator indicating interfered degree of the user terminal  31  can be associated with the Reference Signal Receiving Power. In 3GPP Release 10 and later versions, and in the new carrier type, the indicator indicating interfered degree of the user terminal  31  can be associated with the Reference Signal Receiving Power based on the channel state information. 
         [0044]    Those skilled in the art should understand that the indicator indicating interfered degree of the user terminal  31  can also be associated with other suitable parameters. 
         [0045]    Additionally, the indicator indicating interfered degree of the user terminal  31  can be measured by the user terminal  31  and provided to the base station  30 . The base station  30  provides the second information associated with the indicator to the configuration unit  103 . Especially, when the configuration unit  103  is disposed in the interfering base station  20 , the base station  30  provides the second information to the configuration unit  103  through the communication between base stations via X2 interface, for example. 
         [0046]    Those skilled in the art should understand that the indicator indicating the interfered degree of the user terminal  31  can also be measured in other ways, for example, can be measured by the base station  30 . 
         [0047]    Preferably, the configuration unit  103  is further configured to configure the ABS sent by the interfering base station  20  by performing selection in the parameter table including the predetermined parameter pairs consisted of silence ratio and power reduction amount of ABS. 
         [0048]    Specifically, in case that the power reduction amount of ABS is unchanged, when the silence ratio of ABS is increased, the total throughput of the interfering base station  20  is reduced and the performance of edge user that is interfered with by the interfering base station  20  and served by the base station  30  (that is, the edge performance of the base station  30 ) is improved, and vice versa. Furthermore, in case that the silence ratio of ABS is unchanged, when the power reduction amount of ABS is increased, the total throughput of the interfering base station  20  is reduced, and the edge performance of the base station  30  is improved, and vice versa. 
         [0049]    The total throughput of the interfering base station  20  and the edge performance of the base station  30  can be configured by appropriately setting predetermined parameter pairs consisted of silence ratio and power reduction amount of ABS, so as to improve the total performance of the wireless communication heterogeneous network. 
         [0050]    The configuration unit  103  can configure the ABS sent by the interfering base station  20  in other ways, for example, changing one of silence ratio and power reduction amount of ABS at the same time when the other is not changed, that is, either one of silence ratio and power reduction amount of ABS is adjusted. 
         [0051]      FIG. 2  and  FIG. 3  illustrate two examples of parameter table including predetermined parameter pairs consisted of silence ratio and power reduction amount of ABS. 
         [0052]    In the parameter table illustrated in  FIG. 2 , eight pairs of parameters are schematically illustrated, wherein, the higher the silence ratio is, the smaller the power reduction amount is, whereas, the lower the silence ratio is, the larger the power reduction amount is. When the silence ratio is 100%, the power reduction amount of ABS is 0, at this time, all sent by the interfering base station  20  are ABS, and no normal subframe is sent, therefore, the user terminal  21  is not served. When the silence ratio is 12.5%, the power reduction amount of ABS is lowered to 0 (ie., “zero power” in the rightmost of the first line of the table in  FIG. 2 ). When the power of ABS sent by the interfering base station  20  is lowered to 0, the ABS sent by the interfering base station  20  will not interfered substantially by the subframe sent from the base station  30  in the same time period, such that the edge performance of the base station  30  can be improved better in case that the silence ratio of ABS is unchanged. 
         [0053]    Those skilled in the art should understand that, the parameter table in practical application can be designed according to design requirement, including other number of parameter pair. 
         [0054]    It should be noted that, in the parameter pair shown in  FIG. 2 , setting the parameter pair consisted of silence ratio and power reduction amount to a parameter pair with smaller silence ratio and larger power reduction amount will make the edge performance of the base station  30  better and the total throughput of the interfering base station  20  smaller. However, those skilled in the art can appropriately set the predetermined parameter pair consisted of silence ratio and power reduction amount of ABS according to specific network scenario. For example, two parameter pairs are set to have big difference between their silence ratios while have small difference between their power reduction amounts, therefore, in some network scenarios, the parameter pair with smaller silence ratio and slightly larger power reduction amount is adopted such that the edge performance of the base station  30  is slightly poor and the total throughput of the interfering base station  20  is larger. In addition, in case that the total throughput of the interfering base station  20  and the edge performance of the base station  30  are required to be varied in a larger range, the parameter pair can be set such that the larger the silence ratio is, the larger the power reduction amount is, therefore, the parameter pair with larger silence ratio and larger power reduction amount can greatly improve the edge performance of the base station  30  and lower the total throughput of the interfering base station  20 . 
         [0055]    In the parameter table illustrated in  FIG. 3 , eight pairs of parameters are schematically illustrated, wherein, similar to  FIG. 2 , the higher the silence ratio is, the smaller the power reduction amount is, and conversely, the lower the silence ratio is, the larger the power reduction amount is. When the silence ratio is 80%, the power reduction amount of ABS is 0. When the silence ratio is 10%, the power reduction amount of ABS is lowered to 0 (ie., “zero power” in the rightmost of the first line of the table in  FIG. 3 ). The parameter table illustrated in  FIG. 3  can be applied to, for example, the scenario where the interfering base station  20  is a macro base station and the base station  30  is a pico base station. In the scenario, the ratio by which the macro base station sends ABS cannot reach 100%, otherwise, the macro base station which is the main serving base station of the heterogeneous network cannot work normally. Those skilled in the art can set parameter pairs correspondingly according to features of other application scenarios, especially, the type of the interfering base station. In other words, the above parameter pair is determined from the type of the interfering base station. 
         [0056]    Preferably, the configuration unit  103  can be configured to compare the first information and the second information with the first reference range including the lower limit of the communication quality of the user terminal  21  and the second reference range including the upper limit of the interfered degree of the user terminal  31 , respectively, and the ABS sent by the interfering base station  20  is configured according to the result of comparison between the first information and the first reference range and the result of comparison between the second information and the second reference range, in such a manner that the first information and the second information are within the first reference range and the second reference range respectively. 
         [0057]    Furthermore, the configuration unit  103  can be configured to adjust the first reference range and the second reference range according to indicators indicating characteristics of the user terminal  21  and the user terminal  31 , so as to configure the ABS sent from the interfering base station according to the result of comparison between the first information and the first reference range and the result of comparison between the second information and the second reference range. 
         [0058]    In other words, the first reference range and the second reference range can be set respectively for the first information and the second information, the ABS is configured such that the first information and the second information is maintained in the first reference range and the second reference range respectively, so the configuration on ABS can be performed according to specific situation. The first reference range and the second reference range can be adjusted according to the indicator indicating characteristics of the user terminal  21  and the user terminal  31 , such that a tradeoff between the total throughput of the interfering base station  20  and the edge performance of the base station  30  can be made according to specific situation. Furthermore, the reference range can be adjusted according to other suitable indicators, or can be set to a fixed reference range. 
         [0059]    Not only the first reference range and the second reference range can be set respectively with respect to the first information and the second information, but also a common reference range can be set with respect to an amount relevant to the first information and the second information, for example, a common reference range can be set with respect to the weighted sum of the first information and the second information. 
         [0060]    Furthermore, when the reference range is adjusted according to above indicators, the reference range for the first information and the reference range for the second information can be adjusted according to above indicators respectively, and the reference range for both the first information and the second information can be adjusted according to above indicators. 
         [0061]    As for those skilled in the art, the ABS can be configured based on the first information, the second information, and the indicators indicating characteristics of the user terminal  21  and the user terminal  31  by suitable ways other than the way of setting the reference range for the first information and the second information, so as to make a tradeoff between the total throughput of the interfering base station  20  and the edge performance of the base station  30  according to specific situation. For example, a reference range can be set for the weighted sum of the first information, the second information, and the indicator indicating characteristics of the user terminal  21  and the user terminal  31 , and the ABS is configured in such a manner that the weighted sum is maintained in the reference range. 
         [0062]    The indicator indicating characteristics of the user terminal  21  and the user terminal  31  is associated with at least one of the amount of the user terminal  21 , the amount of the user terminal  31 , the traffic amount of the user terminal  21 , and the traffic amount of the user terminal  31 . In other words, the indicator indicating characteristics of the user terminal  21  and the user terminal  31  can be associated with only one of the amount of the user terminal  21 , the amount of the user terminal  31 , the traffic amount of the user terminal  21 , and the traffic amount of the user terminal  31 , or can be associated with any number of them. A specific example of the indicator indicating characteristics of the user terminal  21  and the user terminal  31  will be present subsequently. 
         [0063]    The configuration unit  103  determines how to make a tradeoff between the edge performance of the base station  30  and the total throughput of the interfering base station  20  according to the indicator. In other words, the configuration unit  103  determines how to configure the ABS of the interfering base station  20  according to the indicator, thus to make a tradeoff between the total throughput of the interfering base station  20  and the edge performance of the base station  30  according to specific situation. 
         [0064]    For example, the indicator can be associated with the amount of the user terminal  21 , and when the amount of the user terminal  21  is increased, the ABS of the interfering base station  20  is configured in more consideration of the total throughput of the interfering base station  20 . The indicator can also be associated with the amount of the user terminal  31 , and when the amount of the user terminal  31  is increased, the ABS of the interfering base station  20  is configured in more consideration of the edge performance of the base station  30 . 
         [0065]    The indicator can also be associated with the relationship between the amount of the user terminal  21  and the amount of the user terminal  31 , that is, the indicator can be associated with both the amount of the user terminal  21  and the amount of the user terminal  31 . For example, when the ratio between the amount of the user terminal  21  and the amount of the user terminal  31  is increased, the ABS of the interfering base station  20  is configured in more consideration of the edge performance of the base station  30 . 
         [0066]    In other words, in the case that the indicator indicating the characteristic of the user terminal  31  and the user terminal  21  is positive correlated to the ratio of the amount of the user terminals  31  to the amount of the user terminals  21 , the configuration unit  130  can be configured to decrease the lower limit of the communication quality of the user terminals  21  included in the first reference range and to decrease the upper limit of the interfered degree of the user terminals  31  included in the second reference range, when the indicator is increased. 
         [0067]    Similarly, the indicator can be associated with the traffic amount of the user terminal  21 , and when the traffic amount of the user terminal  21  is increased, the ABS of the interfering base station  20  is configured in more consideration of the total throughput. The indicator can also be associated with the traffic amount of the user terminal  31 , and when the traffic amount of the user terminal  31  is increased, the ABS of the interfering base station  20  is configured in more consideration of the edge performance of the base station  30 . 
         [0068]    The indicator can also be associated with the relationship between the traffic amount of the user terminal  21  and the traffic amount of the user terminal  31 , that is, it is associated with both the traffic amount of the user terminal  21  and the traffic amount of the user terminal  31 . For example, when the ratio between the traffic amount of the user terminal  21  and the traffic amount of the user terminal  31  is lager, the ABS of the interfering base station  20  is configured in more consideration of the edge performance of the base station  30 . 
         [0069]    In other words, in the case that the indicator indicating the characteristic of the user terminal  31  and the user terminal  21  is positive correlated to the ratio of the traffic amount of the user terminals  31  to the traffic amount of the user terminals  21 , the configuration unit  130  can be configured to decrease the lower limit of the communication quality of the user terminals  21  included in the first reference range, and to decrease the upper limit of the interfered degree of the user terminals  31  included in the second reference range, when the indicator is increased. 
         [0070]    Of course, the indicator can also be associated with all of the amount of the user terminal  21 , the amount of the user terminal  31 , the traffic amount of the user terminal  21 , and the traffic amount of the user terminal  31 , for example, the indicator can be a weighted sum of the ratio between the amount of the user terminal  21  and the amount of the user terminal  31  and the ratio between the traffic amount of the user terminal  21  and the traffic amount of the user terminal  31 . 
         [0071]    Those skilled in the art should understand that, the indicator can also be associated with at least one of the amount of the user terminal  21 , the amount of the user terminal  31 , the traffic amount of the user terminal  21 , and the traffic amount of the user terminal  31  according to other suitable manners, so as to make a tradeoff between the total throughput of the interfering base station  20  and the edge performance of the base station  30  according to specific situation through the indicator. 
         [0072]    Furthermore, the indicator can also be associated with other suitable amounts that can indicate characteristics of the user terminal  21  and the user terminal  31 , for example, be associated with the importance or the priority of the user terminal  21  and the user terminal  31 , so as to make a tradeoff between the total throughput of the interfering base station  20  and the edge performance of the base station  30  according to specific situation through the indicator. 
         [0073]    When the configuration unit  103  is disposed in the base station  30 , the configuration unit  103  provides the information associated with the configuration scheme to the interfering base station  20  through the communication between the base stations via X2 interface, for example. Such as, the specific value of the selected parameter pair is provided to the interfering base station  20 , or in the case that the parameter pair table is stored in the interfering base station  20 , the number of the selected parameter pair is provided to the interfering base station  20 . Furthermore, in the case that the parameter pair table (for example, the table illustrated in  FIG. 2 ) is stored in the interfering base station  20 , the relative position of the selected parameter pair relative to the parameter pair currently used by the interfering base station  20  is sent to the interfering base station  20 , for example, the information indicating that the parameter pair will be shifted by one position in the direction in which the power reduction amount is relatively large and the silence ratio is relatively small is sent. 
         [0074]    Configuring ABS can be performed periodically, or be performed in other suitable way, for example, be performed according to event trigger. A possible scenario performed according to event trigger is, when the interfering base station  20  detects that the change of the amount of the user terminals or the traffic amount satisfies a predetermined condition, the ABS is reconfigured. 
         [0075]    When the silence ratio and the power reduction amount of the ABS is adjusted periodically according to the variation amount of the first information, in order to prevent the “ping-pong effect” (that is, when the above parameters of the ABS are adjusted towards the first direction, the above parameters of the ABS are re-adjusted towards the second direction opposite to the first direction because of the corresponding variation of the first information or the second information, and after that, because of the corresponding variation of the first information or the second information, the above parameters of the ABS needs to be adjusted towards the first direction again, and the process may be circled many times), the silence ratio and the power reduction amount of the ABS are not adjusted when the variation amount of the first information is small than a predetermined threshold. 
         [0076]    Similarly, when the silence ratio and the power reduction amount of the ABS is adjusted periodically according to the variation amount of the second information, in order to prevent the “ping-pong effect”, the silence ratio and the power reduction amount of the ABS are not adjusted when the variation amount of the second information is small than a predetermined threshold. 
         [0077]    It should be noted that, the predetermined threshold set for the first information and the predetermined threshold set for the second information may be the same or different. Furthermore, the threshold can be set with respect to the relative variation amount of the first information and the second information, or be set with respect to the absolute variation amount of the first information and the second information. 
         [0078]    Those skilled in the art can also adopt other ways to decrease the sensitivity of triggering reconfiguration of the ABS, thus to prevent the “ping-pong effect”. For example, the sensitivity of adjusting the above parameters of the ABS towards one direction can be made different with the sensitivity of adjusting the above parameters of the ABS towards another direction, so as to prevent repetitive adjustment of the above parameters. 
       2. Wireless Communication Heterogeneous Network 
       [0079]      FIG. 4  illustrates the wireless communication heterogeneous network  100  according to an embodiment of the present disclosure. As shown in  FIG. 2 , the network  100  comprises a first base station  120  and a second base station  130 . The first base station  120  comprises a first information acquisition unit  122  and a configuration unit  123 . The second base station  130  comprises a second information acquisition unit  132 . In the system  100 , the first base station  120  is an interfering base station, the user terminals served by the first base station  120  are referred to collectively as the user terminal  121 , the user terminals served by the second base station  130  and interfered by the first base station  120  are referred to collectively as the user terminal  131 . Similarly to the example of  FIG. 1 , the user terminal  121  and the user terminal  131  may be one or more user terminals respectively. 
         [0080]    The first information acquisition unit  122  is configured to acquire the first information, the first information is associated with the indicator indicating the communication quality of the user terminal  121 . 
         [0081]    The second information acquisition unit  132  is configured to acquire the second information, the second information is associated with the indicator indicating the interfered degree of the user terminal  131  interfered by the first base station  120 . 
         [0082]    The configuration unit  123  is configured to configure, based on the first information and the second information, the ABS sent by the first base station  120  by adjusting at least one of the silence ratio and the power reduction amount of the ABS. 
         [0083]    The first base station  120  may be a home base station, while the second base station  130  may be a macro base station. Also, the first base station  120  may be a macro base station, while the second base station  130  may be a pico base station. The second base station  130  can provide the second information to the first base station  120  through the X2 interface. 
         [0084]      FIG. 5  illustrates the wireless communication heterogeneous network  200  according to an embodiment of the present disclosure. As shown in  FIG. 5 , the network  200  comprises a first base station  220  and a second base station  230 . The first base station  220  comprises a first information acquisition unit  222 . The second base station  230  comprises a second information acquisition unit  232  and a configuration unit  233 . In the system  200 , the first base station  220  is an interfering base station, the user terminals served by the first base station  220  are referred to collectively as the user terminal  221 , the user terminals served by the second base station  230  and interfered by the first base station  220  are referred to collectively as the user terminal  231 . Similarly to examples of  FIGS. 1 and 4 , the user terminal  221  and the user terminal  231  may be one or more user terminals respectively. 
         [0085]    The first information acquisition unit  222  is configured to acquire the first information, the first information is associated with the indicator indicating the communication quality of the user terminal  221 . 
         [0086]    The second information acquisition unit  232  is configured to acquire the second information, the second information is associated with the indicator indicating the interfered degree of the user terminal  231  interfered by the first base station  220 . 
         [0087]    The configuration unit  233  is configured to configure, based on the first information and the second information, the ABS sent by the first base station  220  by adjusting at least one of the silence ratio and the power reduction amount of the ABS. 
         [0088]    If the first base station  220  is a home base station and the second base station  230  is a macro base station, the second base station  230  may provide the second information to the first base station  220  through the X2 interface, and the configuration unit  233  of the second base station  230  may configure the ABS sent by the first base station  220  through the X2 interface. 
         [0089]    If the first base station  220  is a macro base station and the second base station  230  is a pico base station, the second base station  230  may provide the second information to the first base station  220  through the X2 interface, and the configuration unit  233  of the second base station  230  may configure the ABS sent by the first base station  220  through the X2 interface. 
       3. Method for Configuring ABS in a Wireless Communication Heterogeneous Network 
       [0090]      FIG. 6  illustrates the method for configuring ABS in a wireless communication heterogeneous network according to an embodiment of the present disclosure. 
         [0091]    The above method begins at step S 102 . 
         [0092]    In step S 104 , the first information associated with the indicator indicating the communication quality of the user terminal served by the interfering base station is acquired. For example, the step can be performed by the first information acquisition unit  101 ,  122  or  222 . 
         [0093]    In step S 106 , the second information associated with the indicator indicating the interfered degree of the user terminal interfered with by the interfering base station is acquired. For example, the step can be performed by the second information acquisition unit  102 ,  132  or  232 . 
         [0094]    In step S 108 , the ABS is configured, based on the first information and the second information, by adjusting at least one of the silence ratio and the power reduction amount of the ABS. For example, the step can be performed by the configuration unit  103 ,  123  or  233 . 
         [0095]    Subsequently, the process is ended at step S 110 . 
         [0096]    It should be noted that, step S 104  is not necessary to be performed before step S 106 , for example, step S 106  may be performed before step S 104 , or, step S 104  and step S 106  may be performed in parallel. 
       4. Specific Examples 
       [0097]    In the following, an implementation of embodiments of the present disclosure will be described in detail through more specific example. 
         [0098]      FIG. 7  illustrates the scenario in which a macro base station and a home base station coexist. In the scenario, the home base station  320 ,  330  (as the interfering base station) that only serve users in a closed user list bring interference to the user terminal  341  of the macro base station  340 . 
         [0099]    Those skilled in the art should understand that, different base stations will interfere with each other, for example, a possible situation is that a macro base station  340  brings interference to the home base station  320  or  330 . Those skilled in the art can select the way of sending ABS according to specific situation to restrain interference between base stations. 
         [0100]    Through the description on the examples shown in  FIG. 7 , those skilled in the art will appreciate that the embodiments of the present disclosure can be embodied with respect to the wireless communication heterogeneous network including one or more interfering base stations. Wherein, with respect to individual interfering base station, the ABSs of all interfering base stations can be configured respectively by the method according to embodiments of the present disclosure, or, only the ABS of one or more interfering base stations can be configured respectively by the method according to embodiments of the present disclosure. 
         [0101]    The macro base station  340  provides services to a plurality of user terminals  341 , the user terminals  341  comprise the user terminal  341   a  and the user terminal  341   b , wherein, the position of the user terminal  341   a  is close to the home base station  320  and is not within the user list of the home base station  320 , therefore, the user terminal  341   a  is interfered by the home base station  320 . While the position of the user terminal  341   b  is close to the home base station  330  and is not within the user list of the home base station  330 , therefore, the user terminal  341   b  is interfered by the home base station  330 . 
         [0102]    It should be noted that, although one user terminal  341   a  and two user terminals  341   b  are illustrated in  FIG. 7 , those skilled in the art should understand that, the user terminal  341   a  and  341   b  may be one or more user terminals respectively. 
         [0103]    The home base station  320  provides services to the user terminal  321  in the user list thereof, and the home base station  330  provides services to the user terminal  331  in the user list thereof. Those skilled in the art should understand that, the user terminal  321  and the user terminal  331  may be one or more user terminals respectively. 
         [0104]    For the purpose of clarity, in  FIG. 7 , a solid line with an arrow represents that a base station provides services to the user terminal, and a broken line with an arrow represents that a base station brings interference on the user terminal. 
         [0105]    Those skilled in the art should understand that, the apparatus  10  in  FIG. 1  may be included in the macro base station  340 , or be included in the home base station  320  or  330 . Furthermore, as shown in  FIG. 4 , the home base station  320  and/or  330  as the interfering base station comprises the first information acquisition unit  122  and the configuration unit  123 , and the macro base station  340  comprises the second information acquisition unit  132 , or as shown in  FIG. 5 , the home base station  320  and/or  330  as the interfering base station comprises the first information acquisition unit  222 , and the macro base station  340  comprises the second information acquisition unit  232  and the configuration unit  233 . 
         [0106]    The macro base station  340  sends subframes according to a design pattern  343 , and it is observed from  FIG. 7  that the subframes sent by the macro base station  340  are all normal subframes. The home base station  320  sends subframes according to a design pattern  322 , and it is observed from  FIG. 7  that the home base station  320  sends one ABS each time when sending four normal subframes. The home base station  330  sends subframes according to a design pattern  332 , and it is observed from  FIG. 7  that the home base station  330  sends four ABSs each time when sending one normal subframe. 
         [0107]    With respect to different home base stations, different lists including parameter pairs consisted of silence ratio and power reduction amount of ABS can be used. For example, in the design patterns  322  and  332 , the power of a subframe is schematically represented by the height of the subframe. It is observed from  FIG. 7  that, the silence ratio of the ABS of the design pattern  322  is lower than that of the ABS of the design pattern  332 , meanwhile, the power reduction amount of the ABS of the design pattern  322  compared to a normal subframe is smaller than that of the ABS of the design pattern  332 . This means that, the parameter pairs for configuring the ABS of the home base station  320  and the parameter pairs for configuring the ABS of the home base station  330  come from different lists, because in the same list, the higher the silence ratio is, the lower the power reduction amount is. 
         [0108]    According to embodiments of the present disclosure, the silence ratio and the power reduction amount by which the home base station  320  sends ABS and the silence ratio and the power reduction amount by which the home base station  330  sends ABS may be the parameter pairs in the lists shown in  FIG. 2  or  FIG. 3 . 
         [0109]    In the following, a specific example of the method by which the home base station  320  sending ABS is periodically configured in the example shown in  FIG. 7  is described in conjunction with  FIG. 8 . 
         [0110]    Although the method shown in  FIG. 8  is for the situation in which the home base station  320  is taken as the interfering base station, it can also be applied to the situation in which other base station (for example, the home base station  330 ) is taken as the interfering base station. Further, the method shown in  FIG. 8  can be applied to the scenario in which other type of base stations constitute a wireless communication heterogeneous network, for example, the scenario in which the macro base station and the pico base station coexist, and the interfering base station is a macro base station, as shown in  FIG. 9 . 
         [0111]    Furthermore, although the method shown in  FIG. 8  is for the situation of configuring periodically, it can also be applied to the situation of configuring by other way. 
         [0112]    In step S 201 , the home base station  320  sets the predetermined signal indicator S 0  and the predetermined interfering indicator I 0 , and the parameter list comprising parameters for configuring the macro base station  330  to send ABS, such as the parameter list shown in  FIG. 2 . S 0  is used to represent the predetermined lower limit of the performance of receiving services by the user terminal  321  in the home base station  320 , and I 0  is used to represent the predetermined upper limit of the interfered degree of the user terminal  341   a  interfered by the home base station  320  in the macro base station  340 . 
         [0113]    In step S 202 , the total traffic amount T non-interfered UE  of the user terminal  321  served by the home base station  320  is calculated, and the total traffic amount T interfered     —     UE  of the user terminal  341   a  served by the macro base station  340  and interfered by the home base station  320  is calculated, further, the ratio between the total traffic amount of the interfered user and the total traffic amount of the un-interfered user is calculated as the relative traffic amount T r , referring to equation 1: 
         [0000]    
       
         
           
             
               
                 
                   
                     T 
                     r 
                   
                   = 
                   
                     
                       ∑ 
                       
                         T 
                         interfered_UE 
                       
                     
                     
                       ∑ 
                       
                         T 
                         
                           non 
                            
                           
                             - 
                           
                            
                           interfered_UE 
                         
                       
                     
                   
                 
               
               
                 
                   ( 
                   1 
                   ) 
                 
               
             
           
         
       
     
         [0114]    In step S 203 , if the traffic amount T r  is increased, it is represented that the edge performance of the macro base station  340  should be more valued, the requirement on the edge performance of the macro base station  340  should be improved, and the requirement on the total throughput of the home base station  320  should be properly decreased, so as to decrease the predetermined signal indicator S 0  and the predetermined interfering indicator I 0 . 
         [0115]    If the traffic amount T r  is decreased, it is represented that the total throughput of the home base station  320  should be more valued, the requirement on the total throughput of the home base station  320  should be improved, and the requirement on the edge performance of the macro base station  340  should be properly decreased, so as to increase the predetermined signal indicator S 0  and the predetermined interfering indicator I 0 . 
         [0116]    The relationship between the specific decreasing amount and increasing amount of the predetermined signal indicator S 0  and the predetermined interfering indicator I 0  and the relative traffic amount T r  can be calculated according to a particular function. For example, an example association way is that the relationship between the specific decreasing amount and increasing amount of the predetermined signal indicator S 0  and the predetermined interfering indicator I 0  and the relative traffic amount T r  are linear negative correlated. 
         [0117]    In step S 202 , also, the amount n 1  of the user terminals  321  served by the home base station  320  can be calculated, the amount n 2  of the user terminals  341   a  served by the macro base station  340  and interfered by the home base station  320  can be calculated, so that the quantity ratio between the amount of the interfered user and the amount of the un-interfered user can be calculated as the relative quantity a. 
         [0118]    Correspondingly, in step S 203 , if the relative quantity a is increased, it is represented that the edge performance of the macro base station  340  should be more valued, the requirement on the edge performance of the macro base station  340  should be improved, and the requirement on the total throughput of the home base station  320  should be properly decreased, so as to decrease the predetermined signal indicator S 0  and the predetermined interfering indicator I 0 . 
         [0119]    If the relative quantity a is decreased, it is represented that the total throughput of the home base station  320  should be more valued, the requirement on the total throughput of the home base station  320  should be improved, and the requirement on the edge performance of the macro base station  340  should be properly decreased, so as to increase the predetermined signal indicator S 0  and the predetermined interfering indicator I 0 . 
         [0120]    The relationship between the specific decreasing amount and increasing amount of the predetermined signal indicator S 0  and the predetermined interfering indicator I 0  and the relative quantity a can be calculated according to a particular function. For example, an example association way is that the relationship between the specific decreasing amount and increasing amount of the predetermined signal indicator S 0  and the predetermined interfering indicator I 0  and the relative quantity a is linear negative correlated. 
         [0121]    The processes of steps S 201 -S 203  can be executed by the aforementioned configuration unit  103 ,  123  or  233 . 
         [0122]    In step S 204 , each user terminal  321  of the home base station  320  measures the received signal from the home base station  320 , and reports to the home base station  320  the indicator indicating the communication quality of the user terminal  321  served by the home base station  320 , the indicator may include, for example, the reference signal reception power (may be RSRP for the previous versions of 3GPP Release 10, or may be CSI-RSRP for 3GPP Release 10 and later versions) and the indicator indicating the communication quality when receiving signals from the home base station  320 . In a TD-LTE (Time Division Long Term Evolution) system, the indicator can also include coupling loss of link parameter. The indicator can be provided to the above first information acquisition unit  101 ,  122  or  222  by the home base station  320 . 
         [0123]    Furthermore, the indicator indicating the communication quality of the user terminal  321  served by the home base station  320  can includes, for example, the ratio between the reference signal reception power of the user terminal  321  for the home base station  320  and the sum of the reference signal reception powers of the user terminal  321  for all base stations. The indicator may also be the weighted sum of the included parameters. 
         [0124]    In step S 205 , each user terminal  341  of the macro base station  340  measures the received signals of all base stations, if the case is that the reference signal reception power with respect to the base station other than the macro base station  340  is greater than the reference signal reception power with respect to the macro base station  340  by a certain preset percentage (for example, 50%), the user terminal is recognized as the user terminal being interfered by the base station other than the macro base station  340 . Thereby, the user terminals  341   a ,  341   b  that are interfered by the home base station  320  can be recognized from the user terminals  341  served by the macro base station  340 . The interfered user terminals  341   a ,  341   b  may both be one or more user terminals. The recognized user terminals  341   a  that is interfered by the home base station  320  reports the indicator indicating the interfered degree of the user terminals  341   a  to the macro base station  340 , the indicator may include, for example, the reference signal reception power and the communication quality indicator of the home base station  320 . In a TD-LTE system, the indicator can also include coupling loss of link parameter. The indicator can be provided to the above second information acquisition unit  102 ,  132  or  232  by the macro base station  340 . 
         [0125]    Furthermore, the indicator indicating the interfered degree of the user terminal  341   a  interfered by the home base station  320  may include, for example, the ratio between the reference signal reception power of the user terminal  341   a  for the home base station  320  and the sum of the reference signal reception powers of the user terminal  341   a  for all base stations. The indicator may also be the weighted sum of the included parameters. 
         [0126]    In step S 206 , the signal indicator S as an example of the first information according to an embodiment of the present disclosure is calculated based on the indicator indicating the communication quality of the user terminal  321  served by the home base station  320  acquired in step S 204 . Specially, when the indicators indicating the communication quality of respective user terminals  321  are provided respectively by a plurality of user terminals  321 , the weighted sum of these indicators can be obtained as the indicator S according to the importance of respective user terminals  321 , or the average value of these indicators can be obtained as the indicator S, or the indicator S can be calculated by other suitable ways. The process can be executed by the aforementioned first information acquisition unit  101 ,  122  or  222 . 
         [0127]    Furthermore, in step S 206 , the interference indicator I as an example of the second information according to an embodiment of the present disclosure is calculated based on the indicator indicating the interfered degree of the user terminal  341   a  interfered by the home base station  320  acquired in step S 205 . Specially, when the indicators indicating the interfered degree of respective user terminals  341   a  are provided respectively by a plurality of user terminals  341   a , the weighted sum of these indicators can be obtained as the indicator I according to the importance of respective user terminals  341   a , or the average value of these indicators can be obtained as the indicator I, or the indicator I can be calculated by other suitable ways. The process can be executed by the aforementioned second information acquisition unit  101 ,  122  or  222 . 
         [0128]    In step S 207 , a comparison is made between the signal indicator S and the predetermined signal indicator S 0 , if S&lt;S 0 , the ABS sent by the home base station  320  is configured by selecting a parameter pair consisted of larger silence ratio and smaller power reduction amount from the parameter table in step S 208 , so as to improve the total throughput of the home base station  320 . It should be noted that, the description herein is made by taking the parameter pair list in  FIG. 2  as an example. As mention above, in the parameter pair table shown in in  FIG. 2 , the parameter pair consisted of smaller silence ratio and larger power reduction amount may result in better edge performance of the macro base station  340  and smaller total throughput of the home base station  320 . 
         [0129]    Similarly, in step S 207 , a comparison is made between the interference indicator I and the predetermined interference indicator I 0 , if I&gt;I 0 , the ABS sent by the home base station  320  is configured by selecting a parameter pair consisted of smaller silence ratio and larger power reduction amount from the parameter table in step S 208 , so as to improve the edge performance of the macro base station  340 . 
         [0130]    If S≧S 0  and I≦I 0 , that is, the signal indicator S is equal or greater than the predetermined signal indicator S 0  which is the lower limit of the signal indicator S and the interference indicator I is less than or equal to the predetermined interference indicator I 0  which is the upper limit of the interference indicator I, the parameters of the ABS is not adjusted. At this time, the predetermined signal indicator S 0  and the predetermined interference indicator I 0  may be properly adjusted as required, so as to put forward higher requirements to the total throughput of the home base station  320  and the edge performance of the macro base station  340 . 
         [0131]    If S&lt;S 0  and I&gt;I 0 , it is represented that neither the total throughput of the home base station  320  nor the edge performance of the macro base station  340  could satisfy the predetermined requirements. At this time, the predetermined signal indicator S 0  and the predetermined interference indicator I 0  may be properly adjusted as required, so as to decrease requirements on the total throughput of the home base station  320  and the edge performance of the macro base station  340 . Since this case may be result from failure, an error message may be sent in this case. 
         [0132]    The processes of steps S 207  and S 208  can be executed by the aforementioned configuration unit  103 ,  123  or  233 . 
         [0133]    When step S 208  is done, the process may proceed to the next period. 
         [0134]    It should be noted that, in order to prevent the aforementioned “ping-pong effect” when configuring the ABS, the comparison between the signal indicator S and the predetermined signal indicator S 0  may not be made when the variation amount of the signal indicator S is less than a predetermined value (for example, less than 5%), so that the silence ratio and the power reduction amount of the ABS may not be not adjusted. Similarly, when the variation amount of the interference indicator I is less than a predetermined value (for example, less than 5%), the comparison between the interference indicator I and the predetermined interference indicator I 0  may not be made, so that the silence ratio and the power reduction amount of the ABS may not be adjusted. In this case, to prevent the situation in which the signal indicator S or the interference indicator I continuously change with a variation amount less than a predetermined threshold, resulting in a large accumulated variation amount, such that the configuration with respect to the silence ratio and the power reduction amount of the ABS remains unchanged, it may be set that, when the variation amount of the interference indicator I or the signal indicator S is continuously less than a predetermined threshold for predetermined times (for example, 5 times), a comparison is made between the interference indicator I and the predetermined interference indicator I 0  or between the signal indicator S and the predetermined signal indicator S 0 . 
         [0135]    Furthermore, as mentioned above, the “ping-pong effect” when configuring the ABS may be prevented by adopting other suitable mechanism. 
         [0136]      FIG. 9  illustrates another example of the embodiment of the present disclosure. In this scenario, the macro base station  420  and the pico base station  430 ,  440  coexist. As an interfering base station, the macro base station  420  brings interference on the user terminals  431   a ,  431   b ,  441   a  and  441   b  of the pico base station  430 ,  440 . 
         [0137]    The macro base station  420  provides services to the user terminal  421 , the pico base station  430  provides services to the user terminal  431   a  and  431   b , and the pico base station  440  provides services to the user terminal  441   a  and  441   b.    
         [0138]    Since the pico base station  430 ,  440  and the macro base station  420  all adopt an open user access manner, the macro base station  420  may bring interference on the user terminal  431   a  of the pico base station  430  and the user terminal  441   a  of the pico base station  440  in the edge region of the pico base station  430 ,  440 . 
         [0139]    Similar to  FIG. 7 , in  FIG. 9 , a solid line with an arrow represents that a base station provides services to the user terminal, and a broken line with an arrow represents that a base station brings interference on the user terminal. 
         [0140]    Those skill in the art should understand that, different base stations may interfere with each other, for example, a possible situation is that the pico base station  430 ,  440  bring interference on the macro base station  420 . Those skilled in the art can select the way of sending ABS according to specific situation to restrain interference between base stations. 
         [0141]    As shown in  FIG. 9 , the macro base station  420  sends subframes through the design pattern  422  with ABS, so as to improve the edge performance of the pico base station  430 ,  440 . Meanwhile, the pico base station  430 ,  440  send subframes without ABS through the design pattern  432 ,  442 . 
         [0142]    Furthermore, in the design pattern  422 , the power of a subframe is schematically represented by the height of the subframe. It is observed from  FIG. 9  that the macro base station  420  sends four ABSs each time when sending one normal subframe. According to an embodiment of the present disclosure, the silence ratio and the power reduction amount by which the macro base station  420  sends ABS may be the parameter pairs in the lists shown in  FIG. 3   
         [0143]    Those skill in the art should understand that, the apparatus  10  in  FIG. 1  may be included in the macro base station  420 , or be included in the pico base station  430  or  440 . Furthermore, as shown in  FIG. 4 , the macro base station  420  as the interfering base station comprises the first information acquisition unit  122  and the configuration unit  123 , and the pico base station  430  and/or  440  comprises the second information acquisition unit  132 , or as shown in  FIG. 5 , the macro base station  420  as the interfering base station comprises the first information acquisition unit  222 , and the pico base station  430  and/or  440  comprises the second information acquisition unit  232  and the configuration unit  233 . 
         [0144]    Similar to the example shown in  FIG. 7 , the method shown in  FIG. 8  can be used to periodically configure the method by which the macro base station  420  sending ABS in the example shown in  FIG. 9 . It should be noted that, in the example shown in  FIG. 9 , the macro base station  420  is the interfering base station, and the pico base stations  430 ,  440  are the base stations providing services to the user terminals interfered by the macro base station  420 . 
         [0145]    Through the above description made with respect to the example shown in  FIG. 9 , those skill in the art will appreciate that, the embodiments of the present disclosure may be performed with respect to the wireless communication in which the user terminals served by one or more base stations are interfered. In this case, the ABS may be configured based on the information detected by the interfered user terminals and served by the unused base stations. 
       5. Hardware Configuration Example 
       [0146]    Respective component units and devices in the above mentioned apparatus, network and basestation according to embodiments of the present disclosure can be configured by way of software, firmware, hardware, or any of combinations thereof. In the case of software or firmware implementation, programs constituting the software or firmware are installed to a machine with a dedicated hardware structure (such as the common machine  700  shown in  FIG. 10 ) from a storage medium or a network, wherein the machine can execute various corresponding functions of the component units, subunits when being installed various programs. 
         [0147]    In  FIG. 10 , a central processing unit (CPU)  701  executes various processes according to programs stored in a read only memory (ROM)  702  or programs loaded from the storage section  708  to the random access memory (RAM)  703 . In RAM  703 , the data required when CPU  701  executes various processes is stored as necessary. CPU  701 , ROM  702  and RAM  703  are connected to each other via a bus  704 . Input/output interface  705  is also connected to a bus  704 . 
         [0148]    The following parts are also connected to the input/output interface  705 : an input section  706  (including a keyboard, mouse, etc.), an output section  707  (including a display, such as a cathode ray tube (CRT), liquid crystal display (LCD), etc. and a speaker, etc.), a storage section  708  (including a hard disk, etc.), a communication section  709  (including a network interface card such as a LAN card, modem, etc.). The communication section  709  performs a communication process via a network such as Internet. If necessary, a drive  710  can also be connected to the input/output interface  705 . Removable media  711  such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like may be mounted on the drive  710  as required, such that a computer program read out therefrom may be installed into the storage section  708  as required. 
         [0149]    In case of realizing the above mentioned series of processing by software, a program constituting the software can be installed from a network such as Internet or from a storage medium such as the removable medium  711 . 
         [0150]    Those skilled in the art should understand that, the storage medium is not limited to the removable storage medium  711  shown in  FIG. 10  that stores programs therein and is distributed separately from the device to provide a program to a user. Examples of the removable storage medium  711  include a magnetic disk (including a floppy disk), an optical disc (including a compact disc read-only memory (CD-ROM) and a digital versatile disk (DVD)), a magneto-optical disk (including a mini disk (MD) (Registration trademarks) and a semiconductor memory. Otherwise, the storage medium may be the ROM  702 , a hard disk contained in the storage section  708 , etc., which have programs stored therein and are distributed to users together with the device including them. 
         [0151]    Furthermore, the present disclosure provides a program product in which machine readable instruction codes are stored. The processing method according to embodiments of the present disclosure can be executed when the instruction code is read and executed by the machine. Accordingly, various storage medium such as a magnetic disk, optical disk, magneto-optical disk, a semiconductor memory for carrying such a program product is also included in the technology solution of the present disclosure. 
         [0152]    Additionally, it is obvious that each operational procedure of the processing method according to the present disclosure can also be realized in the form of a computer-executable program stored in various machine-readable storage media. 
         [0153]    It should be noted that, the respective constituent units or constituent device of the apparatus, network and base station according to the present disclosure may be independent parts, and the function of several constituent units or constituent apparatus can also be implemented by one part. 
         [0154]    The present disclosure discloses not only the apparatus for configuring ABS in a wireless communication heterogeneous network, the wireless communication heterogeneous network, the method for configuring ABS in a wireless communication heterogeneous network, and the program for executing the method and the storage medium having the program storied therein, but also the base station comprising the apparatus for configuring ABS in a wireless communication heterogeneous network. 
         [0155]    The preferred embodiments of the present disclosure are described above, however, the above description is just to illustrate the present disclosure, and does not intend to limit the present disclosure. Those skilled in the art can make alternation, substitution, combination, and partial combination to various features of embodiments of the present disclosure without departing from the scope of the present disclosure. The scope of the present disclosure should be limited to the appended claims.