CN1265560C - 干扰的检测、识别、提取和报告方法 - Google Patents

干扰的检测、识别、提取和报告方法 Download PDF

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CN1265560C
CN1265560C CNB018097472A CN01809747A CN1265560C CN 1265560 C CN1265560 C CN 1265560C CN B018097472 A CNB018097472 A CN B018097472A CN 01809747 A CN01809747 A CN 01809747A CN 1265560 C CN1265560 C CN 1265560C
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narrow band
band channel
interference
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threshold value
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CN1439198A (zh
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C·E·贾格尔
M·N·威利茨
M·托比亚
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ISCO International LLC
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Abstract

自适应陷波滤波器(ANF)模块有选择地滤除收到的宽带通信信号，以消除位于该信号频谱内的窄带干扰。为确定存在的窄带干扰，ANF模块扫描各种位于宽带通信信号频谱内已知的窄带信道，并且测定每条窄带信道的信号强度。把诸窄带信道的信号强度与从窄带信号强度导出的阈值作一比较，并将信号强度大于阈值的窄带信道判为有干扰。

Description

干扰的检测、识别、提取和报告方法
相关申请的交叉参照
本申请要求2000年4月7日提交的美国临时申请No.60/195,387的权益。
技术领域
本发明针对通信系统，尤其针对在宽带通信系统里检测、识别、提取与消除窄带干扰的技术。
背景技术
如图1所示，示例电信系统10包括移动单元12、13，若干基站，其中两个在图1中示为14与16，以及可与每个基站14、16接口的交换站18。基站14、16和交换站18统称为网络基础设施。
操作期间，移动单元12、13与基站14、16之一交换话音数据和其它信息，每个基站都接至常规陆地线路电话网。例如，从移动单元12传给基站14、16之一的信息，如话音信息，由基站耦合至电话网而将移动单元12与陆地线的电话相接，使陆地线路电话可接收该话音信息。反之，可将话音信息等信息从陆地线路电话传给基站14、16之一，接着把信息传给移动单元12。
移动单元12、13与基站14、16能以模拟或数字方式交换信息。为便于描述，假设移动单元12是窄带模拟单元，移动单元13为宽带数字单元，还假设基站14是与移动单元12通信的窄带模拟基站，基站16是与移动单元13通信的宽带数字基站。
模拟方式通信应用窄带30KHz信道实现。“先进移动电话系统”(AMPS)是一例模拟通信系统，移动单元12应用窄带信道与基站14通信。或者，移动单元13应用数字通信方式，如应用码分多址(CDMA)或时分多址(TDMA)与基站16通信。数字通信利用扩展频谱技术实现，可播发宽带如1.25MHz带宽的信号。
交换站18通常负责协调基站14、16的工作，确保移动单元12、13与基站14、16或在地域上散布的某些其它基站稳定地通信。例如，在移动单元12在两个基站覆盖的地域之间漫游时，交换站18可以协调该移动单元12在基站14与另一模拟基站之间的通信切换。
通信系统10会产生的一个具体问题是：各自利用窄带信道通信的移动单元12或基站14妨碍基站16接收和处理来自数字移动单元13的宽带数字信号的能力时，通信系统10会产生一特定问题，此时，移动单元12或基站14发射的窄带信号会妨碍基站16正确接收宽带通信信号的能力。
发明内容
根据一个方面，本发明可以在检测并消除宽带通信信号内的窄带干扰的方法中实施，该宽带通信信号具有一频率带宽，在其内设置了窄带信道，其中保护带的保护带频率靠近该频率带宽。这种方法包括扫描至少某些窄带信道以测定其中的信号强度，并根据至少某些窄带信道的信号强度确定阈值。该方法还包括扫描保护带频率以测定保护带信号强度，并在保护带信号强度超过该阈值时滤除保护带频率。
根据第二个方面，本发明可以在适应检测并消除宽带通信信号中窄带干扰的系统中实施，该宽带通信信号有一频率带宽，其内设置了窄带信道，其中具有保护带频率的保护带靠近该频率带宽。这种系统包括扫描器和陷波模块，前者扫描至少某些窄带信道以测定其信号强度，后者接收宽带通信信号并且有选择地从中去除窄带干扰而产生滤波的宽带通信信号。该系统还包括耦合至扫描器和陷波模块以测定其信号强度的控制器。该控制器还根据至少某些窄带信道的信号强度确定阈值，并且控制扫描器扫描保护带频率以测定保护带信号强度。另外，当保护带信号强度超过该阈值时，控制器可控制陷波模块有选择地滤除保护带频率。
根据第三个方面，本发明可在检测并消除宽带通信信号内窄带干扰的方法中实施，该宽带通信信号有一频率带宽，其内设置了窄带信道。该方法包括扫描至少某些窄带信道以测定其信号强度，根据至少某些窄带信道的信号强度确定阈值，并且识别信号强度超过该阈值的窄带信道。该方法还包括识别具有临时干扰的窄带信道，并且滤除频率对应于信号强度超过该阈值的窄带信道的宽带通信信号，但不滤除识别为具有临时干扰的窄带信道。
根据第四个方面，本发明可在适应检测并消除宽带通信信号中窄带干扰的系统中实施，该宽带通信信号有一频率带宽，其内设置了窄带信道。这种系统包括扫描器和陷波模块，前者扫描至少某些窄带信道以测定其信号强度，后者接收宽带通信信号并从中有选择地去除窄带干扰而产生滤波的宽带通信信号。该系统还包括耦合到扫描器和陷波模块的控制器，其中控制器适合与扫描器一起工作，根据至少某些窄带信道的信号强度确定阈值。该控制器还适应识别信号强度超过该阈值的窄带信道，并且识别具有临时干扰的窄带信道。另外，控制器还适应控制陷波模块滤除频率对应于信号强度超过该阈值的所识别窄带信道的宽带通信信号，但不滤除具有临时干扰的窄带信道。
根据第五个方面，本发明可在检测并消除宽带通信信号内窄带干扰的方法中实施，该宽带通信信号有一频率带宽，其内设置了窄带信道。这种方法包括按代表窄带信道会有干扰的概率的顺序，扫描至少某些窄带信道以测定其信号强度，并根据至少某些窄带信道的信号强度确定阈值。另外，该方法还包括识别信号强度超过该阈值的窄带信道，并且滤除频率对应于信号强度超过该阈值的所识别窄带信道的宽带通信信号。
根据第六个方面，本发明可在适应检测并消除宽带通信信号内窄带干扰的系统中实施，该宽带通信信号有一频率带宽，其内设置了窄带信道。该系统包括扫描器和陷波模块，前者按代表窄带信道会有干扰的概率的顺序，适应扫描至少某些窄带信道以测定其信号强度，后者适应接收宽带通信信号并从中有选择地去除窄带干扰而产生滤波的宽带通信信号。该系统还包括耦合至扫描器和陷波模块的控制器，其中该控制器适合与扫描器一起工作，根据至少某些窄带信道的信号强度确定阈值，识别信号强度超过该阈值的窄带信道，而且控制陷波模块滤除频率对应于信号强度超过该阈值的所识别窄带信道的宽带通信信号。
根据第七个方面，本发明可在检测并消除宽带通信信号内窄带干扰的方法中实施，该宽带通信信号具有设置了窄带信道的频率带宽。这种方法包括扫描至少某些窄带信道以测定其信号强度，根据该信号强度确定阈值，并存贮信号强度超过该阈值的窄带信道的列表。该方法还包括根据该信号强度超过该阈值的窄带信道的列表识别干扰源类型，并且滤除频率对应于信号强度超过该阈值的所识别窄带信道的宽带通信信号，其中滤波以识别出的干扰源类型为基础。
根据第八个方面，本发明可在适应检测并消除宽带通信信号内窄带干扰的系统中实施，该宽带通信信号有设置了窄带信道的频率带宽。这种系统包括扫描器和陷波模块，前者适应按代表窄带信道会有干扰的概率的顺序，扫描至少某些窄带信道以测定其信号强度，后者适应接收宽带通信信号并从中有选择地去除窄带干扰而产生滤波的宽带通信信号。另外，这种系统可包括耦合至扫描器和陷波模块的控制器，该控制器适应存贮信号强度超过阈值的窄带信道的列表，根据该表识别干扰源类型，并且控制陷波模块滤除频率对应于信号强度超过该阈值的被识别窄带信道的宽带通信信号，陷波模块使用的滤波器以所识别干扰源的类型为基础。
根据第九个方面，本发明可在检测并消除宽带通信信号内窄带干扰的方法中实施，该宽带通信信号有设置了窄带信道的频率带宽。该方法包括扫描至少某些窄带信道以测定其信号强度，根据该信号强度确定阈值，并存贮信号强度超过该阈值的窄带信道的列表。该方法还包括对至少某些信号强度超过该阈值的所识别窄带信道指定滤波器，并将信号强度超过该阈值的窄带信道的列表输出给网络管理器。
本领域的技术人员阅读了参照附图对较佳实施例的描述后，将明白本发明的种种特点，下面对附图作一简述。
附图说明
图1示例示出一通信系统；
图2示例示出图1的基站；
图3示例示出宽带信号无干扰的频谱；
图4示例示出宽带信号在有三种窄带干扰时的频谱；
图5示例示出宽带信号在去除三种窄带干扰后的频谱；
图6示例示出图2中自适应陷波滤波器(ANF)的一实施例；
图7示例示出图2中ANF模块的第二实施例；
图8示例示出图7中的陷波模块；
图9示例示出图8中陷波滤波器的第二实施例；
图10是图7微控制器执行的示意主程序流程图；
图11是图7微控制器执行的建立默认值程序的示意流程图；
图12是图7微控制器执行的内置测试设备(BITE)测试程序的示意流程图；
图13是图7微控制器执行的信号处理干扰识别程序的示意流程图；
图14是图7微控制器执行的干扰提取程序的示意流程图；
图15是图7微控制器执行的故障条件检查程序的示意流程图；
图16A与16B形成图7的操作、报警与计量(OA&M)处理器执行的主程序的示例流程图；
图17是图7的OA&M处理器执行的准备响应程序的示意流程图；
图18是图7的OA&M处理器执行的数据缓冲器中断功能的示意流程图。
具体实施方式
下面要详述一种检测、识别、提取与报告干扰的系统和/或方法可应用于通信系统。尤其是这种系统或方法可在宽带通信系统中用于防护或报告存在的窄带干扰，这种干扰对宽带通信系统的性能产生有害的影响。
如图2所示，在图1中描述成接收来自移动单元12的窄带干扰的基站16的信号接收路径，包括向低噪放大器(LNA)22提供信号的天线20。LNA22的输出耦合至分束器24，后者把来自LNA的信号分成若干不同路径，其中一条路径耦合至自适应陷波滤波器(ANF)模块26，另一条路径耦合至窄带接收机28。ANF模块26的输出耦合至宽带接收机30，后者例如可以按CDMA接收机或任一其它合适的宽带接收机实施。窄带接收机28可按15KHz带宽接收机或任一其它合适的窄带接收机里实施。虽然图2只示出一条信号路径，但是本领域的技术人员很容易明白，这种信号路径仅为示例，实际上，基站可以包括两条或多条这类信号路径，用于处理其收到的主要信号和多种信号。
窄带和宽带接收机28与30的输出耦合至基站16内的其它系统，这类系统可执行话音和/或数据处理、呼叫处理或任一其它期望的功能。另外，ANF模块26还通过因特网、电话线或任一其它合适媒体通信耦合至报告与控制设施，后者由基站16遥控。在有些网中，报告和控制设施可与交换站18汇集在一起。窄带接收机28通信耦合至交换站18并对后者发出的指令作出响应。
除了ANF模块26外，图2所示基站16的每个元件20-30都可在常规宽带蜂窝网基站中找到，其详情已为本领域技术人员所熟悉，他们还知道，图2并不示出基站16的每一系统或子系统，而是着重描述与本发明相关的系统与子系统。尤为明白是的，尽管图2中未示出，但是基站16包括发射系统或子系统。
基站16操作期间，天线20接收移动单元13播发的宽带信号，并把这种信号耦合至LNA22，后者放大收到的信号，再把放大的信号耦合至分束器24。分束器24分裂来自LNA22的放大信号，在其每条输出线上放置相同的放大信号。ANF模块26接收来自分束器24的信号，必要时对宽带信号作滤波，以去除任何不需要的窄带干扰，并把滤波的宽带信号耦合至宽带接收机30。
图3示出的宽带信号频谱40可由天线20接收，经LNA22和分束器24进行放大和分束后，耦合至ANF模块26。若天线20接收的宽带信号具有图3的频谱40，ANF模块26将不对宽带信号滤波，直接通过ANF模块26将该宽带信号耦合至宽带接收机30。
然而，如前所述，移动单元13发射并由天线20接收的该宽带信号可能具有图4的频谱42，这种频谱42不仅包括来自移动单元13的具有类似图3中频谱40的宽带信号，还包括三个图4所示的窄带干扰44、46、48，其中一个干扰来自移动单元12。若频谱42包括窄带干扰44、46、48的宽带信号被天线20接收、放大、分束并提供给ANF模块26，则后者将对频谱42滤波而产生图5所示滤波后的频谱50。
滤波后的频谱50去除窄带干扰44、46、48，留下的频谱50极类似于不含任何干扰的频谱40。然后，滤波后的宽带信号由ANF模块26耦合至宽带接收机30，使滤波后的宽带信号谱50可作解调。尽管某些宽带信号在ANF模块26滤波时被去除，但是保留的宽带信号足以让宽带接收机30恢复移动单元播发的信息。因此，一般而言，ANF模块26有选择地把宽带信号滤波，从中去除窄带干扰。下面结合图6-17详述ANF模块26及其工作。
一般而言，图6所示实施例的ANF模块60扫描分束器24提供的信号频谱，寻找其中的窄带干扰。这种扫描通过扫描宽带信号带宽内存在的各种已知的窄带信道来实现。例如ANF模块60可以扫描位于宽带信号带宽内的各种ANPS信道，或者扫描该宽带信号覆盖的所有频谱。无论怎样，当在宽带信号里检出窄带干扰时，ANF模块60就把该窄带干扰移入陷波滤波器的陷波区，对宽带信号滤波而去除该窄带干扰。
具体如图6所示，把来自分束器24的信号耦合至第一混频器62，后者接收来自压控振荡器(VCO)64的附加输入，将来自分束器26的信号与来自VCO64的信号作混频，由此偏移来自分束器24的信号频谱，并把位于中频(IF)的一部分偏移的频谱放入陷波滤波器66的陷波频率。因此，陷波频率置于该IF的陷波滤波器66去除了频率偏移信号中位于IF的分量。
得到的滤波信号由陷波滤波器66耦合至第二混频器68，后者也由VCO64驱动，它将陷波滤波器输出与来自VCO64的信号作混频，把滤波信号频谱移回来自分束器24的信号所拥有的原来位置。第二混频器68的输出耦合至带通滤波器70，去除第二滤频器68产生的任何不需要的镜像频率。
在图6的系统中，第一混频器62把宽带信号里出现的窄带干扰混频到IF，即陷波滤波器66的陷波频率，因而被陷波滤波器66去除。在陷波滤波器66去除窄带干扰后，除了去除该窄带干扰的分量外，第二混频器68将该信号恢复到其原来的频率位置。第一混频器62、VCO64、陷波滤波器66、第二混频器68和带通滤波器可以统称为“上下移频滤波器”或“下上移频滤波器”。
来自分束器24的信号也耦合至旁路开关72，因而若在来自分束器24的宽带信号中检不出窄带干扰，可使旁路开关72旁路陷波滤波器66和混频器62、68，把来自分束器24的信号直接传给宽带接收机30。或者，若检出了窄带干扰，就断开旁路开关72，迫使来自分束器24的信号通过陷波滤波器66。
为了检测存在的窄带干扰并实行频率扫描，设置了若干部件。鉴别器74接收来自第一混频器62的输出信号，利用调谐到IF的接收信号强度指示器(RSSI)检测IF信号强度。鉴别器74的RSSI输出耦合至比较器76，后者还在线路78上接收阈值电压。当来自鉴别器74的RSSI信号超过线路78上的阈压时，比较器76指出在陷波滤波器66的陷波频率IF上有窄带干扰。在检出窄带干扰时，停止VCO64的扫描操作，使陷波滤波器66能去除该IF干扰。
为了对VCO64的扫描操作起作用，把比较器76的输出耦合至采保电路80，该电路接收来自电压扫描发生器82的输入。一般在比较器76检不出干扰时，电压扫描发生器82的的输出就通过采保电路80而加到加法器84，后者还接收来自耦合至鉴别器74输出端的低通滤波器86的输入。加法器84产生以闭环方式驱动VCO64的信号。当电压扫描发生器82按时间扫描其输出电压时，加法器84的输出也扫描，使VCO64的频率输出随时间扫描。VCO64的扫描输出与鉴别器74和比较器76一起对干扰而扫描来自分束器24的信号。只要比较器76指示无窄带干扰，开关72就保持闭合，因为不需要滤波来自分束器24的信号。
然而，当比较器76在来自分束器24的信号中检出窄带干扰时(即在RSSI超过线路78上的电压时)，采保电路80就对电压扫描发生器82的输出采样并保持采样的电压电平，由此向加法器84提供固定电压，后者接着向VCO64提供固定输出电压。由于向VCO64提供了固定电压，所以VCO64输出的频率不变，而且不再扫描来自分束器24的信号，不过频率偏移了，使窄带干扰移到陷波滤波器66的陷波频率IF。另外，当比较器76指出有窄带干扰时，开关72就断开，来自分束器24的信号的要用路径只有通过混频器62、68与陷波滤波器66的路径。
线路78上的阈压可以手动调谐或通过滤波某种接收的信号强度而产生。无论是何种方法，在设置线路78上的电压时，都要使比较器76在只有如图3所示信号的宽带信号时不指示有干扰，而只在有窄带干扰的信号时才指示干扰。例如，图4的频谱42示出三个窄带干扰44、46、48，但是比较器76只需其中一个干扰来指示有窄带干扰。显然，图6的实施例只能在宽带信号内选择并滤除单个窄带干扰。
如图7所示，能滤除若干窄带干扰的第二实施例的ANF模块100，一般包括扫描器102、模/数转换器(A/D)104、微控制器106、操作/报警/计量(OA&M)处理器108和若干陷波模块(其中两个在图7中标为110与112)。微控制器106和OA&M处理器108可分别在Microchip Technology公司制造的PICl6C77-20P型微控制器和Intel公司制造的80386型处理器中实施。虽然这里把它们图示和描述为独立的装置而执行独立的软件指令，但是本领域的技术人员将明白，可以把微控制器106和OA&M处理器108的功能合并成单个处理装置。
另外，ANF模块100的第二实施例可以包括内置测试设备(BITE)模块114和旁路开关116，后者可以埋置在Hittite出售的AS239-12砷化镓单刀双掷开关中实施。微控制器106和OA&M处理器108可以分别耦合至外接存储器118与120。
包含混频器130、鉴别器132与可编程本振器134的扫描器102，通常与A/D104和微控制器106发生互作用，以在分束器24提供的信号里检测存在的窄带干扰。混频器130和可编程本振器134可分别在M/A-Com出售MD-54-0005型混频器和Analog Devices公司制造的AD9831型直接数字合成器里实施。另外，A/D104可以完全集成在微控制器106内，或是一种与之耦合的独立装置。
下面进一步详述，一旦在来自分束器24的信号里检出窄带干扰，微控制器106就通过串行总线136控制陷波模块110、112去除检出的窄带干扰。如图7所示，虽然ANF模块100的第二实施例包含两个陷波模块110、112，但是可在其中设置附加的陷波模块，数量仅受每个陷波模块造成的信号劣化限制。因设置了多个陷波模块，故可从来自分束器24的宽带信号里去除多个窄带干扰。例如，若设置3个陷波模块，则ANF模块110可处理图4所示具有频谱42的宽带信号，产生图5所示具有频谱50的滤波的宽带信号。
扫描器102的功能如下。将来自分束器24的信号耦合至混频器130，后者还接收来自可编程本振器134的输入。混频器130将来自分束器24的信号向下混频至IF，该频率经鉴别器132分析而产生耦合至A/D104的RSSI测量值，A/D104把该RSSI信号从模拟信号转换成可由微控制器106处理的数字信号。微控制器106将A/D104的输出与其先前确定的合适阈值作比较。微控制器106确定合适阈值的细节在后面再描述。若微控制器106确定来自A/D104的输出(代表RSSI)超出该阈值，就指定陷波模块110、112之一以RSSI超出阈值的IF滤除来自分束器24的信号。
微控制器106还对可编程本振器134编程，使混频器130将来自分束器24的信号的各部分频谱移到鉴别器132处理的IF。例如，若有59条窄带信道位于特定宽带信道的频带内，微控制器106将对可编程本振器134连续编程，使混频器130把59条信道的每一条连续地向下混频到IF，因而鉴别器132可对每条信道产生RSSI测量值。相应地，微控制器106用可编程本振器134、混频器130和鉴别器132分析位于宽带信号频带内60条窄带信道的每一条的信号强度。通过分析位于宽带信号频带内的每条信道，微控制器106就能确定合适的阈值，并判断在一条或多条窄带信道内是否有窄带干扰。
识别出有窄带干扰后，微控制器106就立即对陷波模块110、112编程以去除伤害最大的干扰，如最强的干扰。下面要详述，微控制器106还可存贮干扰信道和各种其它参数的列表，这种列表可以通过OA&M处理器108传给报告与控制设施或基站，用于系统诊断。
诊断目的可以包括但不限于控制窄带接收机28以获取有关干扰源的特定信息，并通过与其基站联系以削弱该干扰源。例如，报告与控制设施可用窄带接收机28确定干扰源属性，比如属于移动单元，办法是截获该移动单元在窄带信道上发射信息时它的电子序号(ESN)。知道了干扰源的属性，报告与控制设施可与正在同该移动单元通信的基础设施联系，要求它改变该移动单元的发射频率(即移动单元正在发射的窄带信道的频率)，或要求基础设施完全分出与干扰移动单元的通信。
另外，诊断目的还包括用窄带接收机28确定正在试图联系或处理呼叫的移动单元的电话号码。例如，报告与控制设施可用窄带接收机28确定该移动单元用户正在拨打911或其它应急号码，因而决定用把窄带接收机28通过将其输出传给电话网来处理紧急呼叫。
图8详细示出了陷波模块110，应该理解，ANF模块100使用的任何其它陷波模块基本上与陷波模块110相同。陷波模块110一般是上下移频或下上移频滤波器，其工作原理类似于结合图6描述的ANF模块60。具体而言，陷波模块110包括第一和第二混频器150、152，各混频器接收来自锁相回路(PLL)154的输入信号，该锁相回路154通过逻辑电路块156与微控制器106的串行总线136接口。陷波滤波器块158位于混频器150与152之间，下面描述其细节。实际上，混频器150、152可在M/A-Com出售的MD54-0005型混频器中实施，而PLLl54可在National半导体公司出售的LMX2316TM型频率合成器中实施。
在ANF模块100工作时，微控制器106控制PLL154产生输出信号，令第一混频器150把来自分束器24的信号频谱移至IF，这是陷波滤波器块158的陷波频率。或在陷波模块级联的场合中，陷波模块可从另一陷波模块接收其输入而不从分束器24接收。PLL154的输出还可耦合至第二混频器，在陷波滤波器块158去除窄带干扰后，将来自陷波滤波器块158的信号频谱移回到其原来位置，像从分束器24接收的一样。第二混频器152的输出还耦合至滤波器160，去除任何不希望的由第二混频器152产生的镜像频率。滤波器160的输出可耦合至其它陷波模块(如陷波模块112)，若不用其它陷波模块，可直接耦合至宽带接收机30。
另外，陷波模块110包括旁路开关164，在不准备滤除窄带干扰或陷波模块110失效时，用来旁路陷波模块110。例如，当检不出要用陷波模块110滤除的干扰时，微控制器106就闭合旁路开关164。反之，当检出干扰并准备用陷波模块110滤除这种干扰时，微控制器106则断开旁路开关164。
如图8所示，陷波滤波器块158包括滤波器165，可以是例如-40dB时抑制带宽达约15KHz的滤波器。其抑制带可固定于例如150MHz的中心频率，或混频器150的IF所在的任何其它合适频率。
如图9所示，虽然图8的陷波滤波器块158只示出单只滤波器165，但是第二实施例的陷波滤波器块166可以包括开关170和多个滤波器172-1780。在这种配置中，每个滤波器172-178在-40dB的抑制带宽都不同，如图9所示，滤波器172-178的抑制带宽为15KHz-120KHz。应用各种抑制带宽的滤波器，能让ANF模块100选择具有最佳地滤除干扰源的优化抑制带宽的滤波器。
第二实施例的陷波滤波器块166工作时，微控制器106控制开关170把来自第一混频器150的输出信号传给滤器172-178之一。微控制器106通过开关170选择所含陷波开关最适合滤除被微控制器106检出的干扰的滤波器172-178。例如，若控制器106判定若干邻信道上有干扰，它就用陷波宽度足以滤除所有这类干扰的滤波器172-178，而不是用单一滤波器滤除各独立信道上的干扰。另外，当无窄带干扰的窄带信道把两条有干扰的窄带信道分开时，可以使用单个宽带的滤波器。虽然应用单个宽带宽滤波器将对无干扰的窄带信道作滤波，但是可以忽略丢失的宽带信号信息。
在描述了该系统硬件方面的细节后，现在把注意力转向系统的软件方面。当然，本领域的技术人员显然明白，很容易把软件功能做成硬件装置，如专用集成电路(ASIC)。因而，虽然以下描述属于软件，但是这种描述只是示例，不应认为是限制。
因此，图10-15包括的一些块代表软硬件功能或程序。若这些块代表软件功能，就可以高级语言诸如C语言或任何其它合适的高级语言，把实施诸功能的指令编成程序，并且编成机器可读格式。或者，可用汇编码或任何其它合适的语言编制代表诸块的指令。这类指令可存贮在微控制器106内或外部存储器118内，由微控制器106从中调用执行。
如图10所示，主程序200包括若干在与图10有关的高层描述的块或程序，并对图11-15作详述。主程序200在块202开始执行，微控制器102设立默认值并准备执行ANF模块100的功能。建立默认值功能完成后，控制进行块204，对ANF模块100作内置测试设备(BITE)测试。
BITE测试之后，控制从块204进到206，执行信号处理和干扰识别。在块206识别了干扰后，控制进到块208，从ANF模块100收到的宽带信号中提取识别的干扰。
在块208提取干扰后，控制进到块210，作故障条件检查，通过检查ANF模块100的整体故障，确保该模块100在正常工作。
故障条件检查后，控制进到块210-212，作干扰数据制备，包括把某个块202-210产生的信息从微控制器106传到OA&M108。干扰数据制备完成后，主程序200就结束其执行。微控制器106以例如每隔20ms的时间间隔执行主程序200。
如图11所示，建立默认值程序202在块22开始执行，微控制器106调谐可编程本振器134，扫描频率指定为F1的第一信道上的干扰。如图11所示，F1可以是836.52MHz。或者，本领域的技术人员显然明白，ANF模块100调谐的第一信道可以是任何位于宽带信道的频带或保护带内的合适频率。
在微控制器106建成扫描第一频率上的干扰后，控制从块220进到块222，建立默认信噪阈值，用于测定接收自图2分束器24的宽带信号中存在的窄带干扰。尽管后面的描述将详细说明如何产生合适的阈值，块222仅对测定存在的窄带干扰建立初始阈值。
在块222设置了默认阈值后，控制进到块224，微控制器106读取各种输入，与陷波模块110、112和其它串行通信装置建立串行通信，并且与OA&M处理器108建立通信。在块224完成执行后，建立默认值程序202使控制返回主程序并执行块204。
图12详细示出了BITE测试程序204，它在程序202结束后开始执行。具体而言，BITE测试程序204在块240开始执行，微控制器106通过闭合陷波模块110、112的旁路开关190而使它们处于旁路模式。在旁路了陷波模块110、112后，微控制器106对BITE模块114编程，为诊断而产生用于测试陷波模块110、112有效性的干扰。在陷波模块110、112旁路而且BITE模块114启动后，控制从块240进到242。
在块242，微控制器106通过A/D104在陷波模块112输出端读取干扰源信号电平。由于陷波模块110、112被块240旁路，陷波模块112输出的信号电平应包括BITE模块114产生的干扰。
在块242读出了干扰源信号电平后，块244判断该读出的干扰源电平是否合适。由于陷波模块110、112已在块240置于旁路模式，所以微控制器106有希望在陷波模块112输出端看到干扰源。若在陷波模块112输出端检出的干扰源电平不能接受(即过高或过低)，控制从块244进到块246，宣告系统出错。宣告系统出错包括微控制器106向OA&M处理器108报告系统出错。接着，OA&M处理器108向报告与控制设施报告系统出错。另外，宣告系统出错还包括将出现系统出错的事实写入微控制器106的外部存储器118。
反之，若块244断定该干扰源电平合适，则控制从块244进到块248，微控制器106应用一个或多个陷波模块110、112。在块248应用了陷波模块110、112后(即不旁路)，控制进到块250，读取陷波模块112输出端的信号电平。由于BITE模块114以块248应用的陷波滤波器的频率产生干扰，故期望陷波模块110、112去除该干扰。
在块250读出信号电平后，控制进到块252，判断有无干扰。若有干扰，控制就从块252进到块246，由于一个或多个陷波模块110、112因正在抑制BITE模块114产生的干扰而不能正常工作，所以宣告系统出错。反之，若在块252检不出干扰，ANF模块100正常工作，因而在块254检不出干扰，ANF模块100正常工作，因而在块254被置于正常工作模式。执行了块254或246后，BITE测试程序204使控制返回主程序200，开始执行块206。
如图13所示，在块270开始执行信号处理与干扰识别程序206。在块270，微控制器106控制可编程本振134，使其能通过鉴别器132和A/D104对每条期望的信道读取信号强度值。具体而言，微控制器106控制可编程本振器134连续地调谐到若干已知信道，调谐作用将每条已知信道移至IF，使鉴别器132能使RSSI读出各信道的信号强度。若某些信道比其它信道带干扰的概率更高，可以任选首先扫描概率更高的信道。根据历来的干扰模式或ANF模块100观察的干扰数据，可以确定干扰概率较高的信道。
在块270，微控制器106还控制可编程本振器134，使保护带部分频移到IF，让鉴别器132能对该保护带产生RSSI测量值。由于保护带在置于宽带接收机30内的滤波器的频响特性之外，所以块270通过将这类读数值减少该保护带将被宽带接收机30内接收机滤波器衰减的量，来补偿保护带信号强度读数。补偿的原因在于ANF模块100与窄带信号对宽带接收机30的有害作用有关。相应地，频率在宽带接收机30滤波器通带内的信号不要求补偿，而落在保护带内将被宽带接收机30的接收滤波器滤除的信号则要求补偿。保护带补偿的频响特性基本上与宽带接收机滤波器的频响特性一样，例如，若宽带接收机滤波器将一特定频率衰减10dB，则保护带在该特定频率的读数将被衰减10dB。
块270结束后，控制进到块272，选择若干信号电平最高的信道。通常，块272选择的信道数直接对应于某特定ANF模块100所应用的陷波模块110、112的数量。在块272选出信号电平最高的信道后，控制从块272进到块274。
在块274，微控制器106对块270读取的期望信道计算平均信号强度值，确定合适的阈值，但计算的平均值并不考虑块272选择的信号电平最高的信道。或者，可以包括块272选出的信号电平来计算平均值。块274计算的平均值将得到偏差补偿，并用于判断块270读取的期望信道有无窄带干扰。
块274完成执行后，控制进到块276，将块272所选信道的信号强度值与该合适的阈值作比较，该阈值是块274计算的平均阈值与偏差之和。若块272选出的信道的信号强度超过该合适阈值，控制进到块278。
根据超过该合适阈值的信道，块278指示有干扰的信道。例如将来自微控制器106的信息写到外部存储器118，传给OA&M处理器108，作出这样的指示。在块278指出了该干扰源后，控制进到块280。另外，若块272选不出信号强度超过合适阈值的信道，控制就从块276进到块280。
在块280，微控制器106更新干扰数据。指出有干扰源的信道。具体而言，在每一帧(如20ms)，微控制器106通过比较若干信道上的功率电平(RSSI)与阈值电平检测干扰源。在检出干扰源时，在将该干扰源归类为干扰源的整个时间内(即直到该信道的RSSI电平降到低于该阈值)一段足以通过下述拖延时间测试的时间为止，收集该干扰源的数据。将所有这些信息都写到OA&M处理器108访问的存储器(如存储器118或120)。如下所述，OA&M处理器108处理该信息而产生干扰报告。
另外，块280读取可接收自OA&M处理器108的输入指令，这类指令通常用于执行ANF模块100的配置与测量。具体而言，这类指令可以是使ANF模块100处于各种模式的指令，例如正常模式、应用或激励内置测试设备的测试模式，或完全旁路ANF模块100的旁路模式。另外，还可用指令改变ANF模块100的识别特性，如可用指令改变ANF模块100的标识号，识别用于ANF模块100的设备类型，识别ANF模块100的地域位置，或者设置ANF模块100内本地时钟的时间和日期。还有，可以利用指令例如增删或改变用ANF模块100扫描或人工更改把信号归类为干扰源的阈值的窄带信道，来控制ANF模块100的操作。再者，可用指令改变下述的增高时间和拖延时间。此外，还可提供禁止ANF模块100的指令。
执行了块280后，信号处理与干扰识别程序260将控制返回主程序200，在块208继续执行。
如图14所示，在块290开始执行干扰提取程序208，将有干扰源的持续时间与称为“允许持续时间”(也称为“增高时间”)的参考时间作比较。若干扰源出现得比增高时间更长，控制就进到块292；反之，若干扰源出现得不比允许持续时间长，控制则进到块296，下面再详述。块290基本上起到滞迟作用，防止把滤波器分配给刚出现这类干扰源的临时干扰源。允许时间一般为20毫秒量级，接近CDMA通信系统的帧速率。本领域的技术人员显然明白，帧速率就是基站与移动单元交换数据的速率，例如，若帧速率是20ms，移动单元将每隔20ms从基站接收一数据猝发段。块90接纳处于初始上电过程的移动单元。本领域的技术人员将明白，移动单元根据接近其发射功率极限的发射功率初始上电。待该初始上电的移动单元与基站建立了通信后，基站可以命令该移动单元减小其发射功率。由于移动单元减小了其发射功率，它就不再是拥有ANF模块的基站的干扰源了。相应地，块290可防止ANF模块100把陷波模块100、112分配给自己在短时间内消失的干扰源。
在块292，微控制器106判断是否有当前未用于滤除干扰源的陷波模块110、112，若有现成的陷波模块，控制就从块292进到块294，激励并调谐该陷波模块滤除出现在来自分束器24的宽带信号里的干扰源。执行了块294后，控制进到下述的块296。
然而，若块292断定无现成的陷波模块，控制则从块292进到块298，判断出现的干扰源是否比目前分配陷波模块的干扰源更强。块298一般按优先度处理陷波模块，首先滤除信号电平最强的干扰源。若块298断定该出现的干扰源不比对其分配陷波模块的其它干扰源更强，控制从块298进到块296。
或者，若出现的干扰源比对其分配了陷波模块的某个干扰源更强，则控制从块298进到块300。块300判断比出现的干扰源更弱的干扰源是否已通过拖延时间测试。拖延时间测试用于防止ANF模块100在干扰源处于临时衰落状态时取消该干扰源的陷波模块110、112，例如，若某个移动单元正在产生干扰而且已分配陷波模块110、112以滤除该干扰，当该移动单元进入衰落状态而ANF模块100检出的干扰电平变低时，ANF模块100并不取消用于滤除衰落干扰的陷波模块，直到该干扰在称为拖延时间的时间内不再出现。通常，拖延时间是一种滞迟作用，防止陷波模块迅速地撤离只是临时衰落而过后会返回的干扰源。因此，若弱于当前干扰源的该干扰源经过了拖延时间，控制就进到块302；反之，若弱于当前干扰源的该干扰源未经过拖延时间，块300则受控地进到块296。
在块302，微控制器106不激励滤除较弱干扰源的陷波模块，将它重新分配给更强的干扰源。在块302重新分配陷波模块后，控制进到块296。
在块296，微控制器106从最低到最高电平重新排列干扰源，并把陷波模块分配给最高电平的干扰源。像块298一样，块296按优先度进行处理，确保用陷波模块滤除最强的干扰源。另外，块296分析ANF模块100检出的干扰模式，分配各种陷波宽度的滤波器172-178滤除干扰源。例如，若ANF模块100在连续信道上检出总合带宽为50KHz的干扰，就用陷波滤波器158中的50KHz滤波器176滤除这种干扰，而不用4个15KHz的滤波器。这种技术十分便于陷波模块110、112滤除附加的干扰源。
执行完块296后，控制进到块304，把诸信道及其干扰状态列表送到可被OA&M处理器108访问的存储器(如存储器118或120)，更新干扰数据。执行完块304后，干扰提取程序208使控制返回主模块200，继续执行块210。
在块210，如图15所示，微控制器106判断ANF模块100是否有严重故障。例如，这种判断法可以判断ANF模块100的稳压器输出的电压是否为合适的输出电压；或者，查看每个陷波模块110、112能否工作，以此判断严重故障。若各陷波模块不能工作，则ANF模块100可能有严重故障。无论如何，若出现严重故障，控制就从块320进到块322，此时微控制器106令图7的旁路开关116旁路ANF模块100所有的陷波模块110、112，把分束器24直接接至宽带接收机30。执行了块322后，或如果块320判定未出现严重故障，控制便回到主程序200，继续执行块212。在块212，将写到存储器118或120干扰数据传给OA&M处理器108。
描述了微控制器106执行的软件功能后，现在转向图7的OA&M处理器108。若图16的诸块代表软件功能，则实施诸功能的指令可用某种高级语言写成程序，如C或任何其它合适的高级语言，并可汇编成机器可读格式。或者，可用汇编码或任何其它合适的语言编写代表诸块的指令。这类指令可存贮在OA&M处理器108内或外部存储器120内，OA&M控制器108可从中调出执行。
具体而言，如图16A与16B(这里统称为图16)所示，OA&M处理器108执行的主程序340可在块342开始执行，OA&M处理器108通过进行建立通信、检查报警状态和执行一般内务操作任务而自我初始化。在块342，OA&M处理器108初始化后，控制进到块344。
在块344，OA&M处理器108判断有无新数据从OA&M缓冲器(未示出)里读出。若块344断定有要读的新数据，控制进到块346，判断新数据是否有效，若有效，控制从块346进到块348，从OA&M缓冲器读出数据。反之，若块346断定新数据无效，则控制从块346进到块350，OA&M缓冲器复位。执行了块348或350后，控制进到块352，下面详述。
回到块344，若块344断定无新数据要读，控制进到块360，计算ANF模块100扫描的各信道的功率电平。OA&M处理器108能在块360计算功率电平，因为ANF模块100的微控制器106扫描各条信道而产生的数据，存贮在OA&M处理器108可读的缓冲器里。
在块360算出功率电平后，控制进到块362，判断计算的功率电平是否超出预定阈值，若超出，控制从块362进到364，在进到块366之前跟踪干扰源的持续时间。反之，若块362判定计算的功率电平未超出阈值，控制从块362直接进到366。
块366判断评估的干扰源是否先前指出的干扰源，若断定不是，控制进到块352。或者，块366进到块368。
在块368，OA&M处理器108判断出现的干扰源是否已消失的先前干扰源，若是，就使控制进到块370。或者，若出现的干扰源未消失，则控制从块368进到372。
在块370，OA&M处理器108存贮干扰源的开始时间与持续时间。这类信息可存贮在OA&M处理器108自身内部或外部存储器120内。执行完块370后，控制进到块352，在块372，干扰源的持续时间增加，代表有干扰源的时间。执行了块372后，控制进到块352。
块352判断OA&M处理器108是否收到报告与控制设施发出的指令，若收到，控制从块352进到380。在块380，OA&M处理器108判断该指令是给ANF模块100的微控制器106的还是给OA&M处理器108的。若该指令给微控制器106，控制从块380进到382，把该指令送给微控制器106。执行了块382后，主程序340结束。
或者，若OA&M处理器108收到的指令不是给微控制器108的指令，控制从块380进到384，准备对指令作出响应。响应包括简单的确认，或包含被请求的真实数据的响应。块384的详情与图17一起提供。在块384制备了响应后，块386激励OA&M处理器108的串行中断，结束主程序340。
或者，若块352断定未收到指令，控制从块352进到390，判断图7的旁路开关116是否闭合(即接通旁路)。若块390断定未接通旁路，就结束主程序340；若断定接通了旁路，控制从块390进到392。
在块392，OA&M处理器108判断是否有应用旁路开关116旁路ANF模块100的前一用户指令，若有，结束主程序340。或者，若没有旁路ANF模块100的前一用户指令，控制从块392进到394，比较旁路时间与保持时间。若旁路时间超过保持时间(例如一分钟)，则控制从块394进到396。
在块396，OA&M处理器108产生报警，通过例如把接到报告与控制设施的通信线路拉到24伏高状态，将该报警传给该报告与控制设施。执行了块396后，主程序340结束。
或者，若块394断定旁路时间未超过保持时间，控制从块394进到398，递减保持时间，使旁路时间更接近保持时间。最后，在块398充分减少了保持时间后，块394将断定旁路时间已超过保持时间，使控制进到块396。在执行完块398后，主程序340结束。
如图17所示，制备响应程序384在块400开始执行。在块400，OA&M处理器108读出微控制器106已写入缓冲器(如存储器118或120)的信息，并计算出现的干扰源的持续时间，计算干扰源功率电平，计算平均信号电平。该信息可在本地存贮在ANF模块100内或实时回告网络管理器。这种报告可通过专用线路或经因特网连接无线地实现。干扰源功率电平与平均信号功率可用来评估地域的频谱完整性，以检测可能影响基站的性能固定干扰源，还可使基站性能与基站经历的干扰相关。完成块400后，控制进到块402。
在块402，OA&M处理器108对块400算出的信息加上实时标志，并且存贮包括该实时标志和块400算出的信息的报告信息。这类信息可存贮在OA&M处理器108自身内部或其外部存储器120内。
执行完块402后，控制进到块404，判断ANF模块100是否收到指令。这类指令接收自报告与控制设施。若块404断定OA&M处理器108未收到指令，控制从块404回到主程序340，继续执行块386。
反之，若块404断定OA&M处理器108已收到指令，则控制从块404进到406，判断收到的指令是否为用来从远端处(诸如报告与控制设施)控制ANF模块100操作的控制指令。若块406断定该收到的指令是控制指令，块406将控制转到块408，执行该指令规定的动作。指令包括例如对ANF模块100的遥控启用或禁止的指令，或其它合适的指令。执行了块408后，控制从制备响应程序384回到主程序340，再结束执行。
反之，若块406断定OA&M处理器108收到的指令不是控制指令，则控制从块406进到410，判断收到的指令是否为报告指令，若不是，块410将控制送回主程序340。反之，若块410断定该收到的指令是报告指令，则控制从块410进到412，制备并送出干扰报告。该干扰报告包括示出ANF模块100检出的最新200个干扰源的参数的信息，和微控制器106写入OA&M处理器108访问的存储器118、120以制备干扰报告的信息，还可包括检出干扰的频率号(信道)、干扰源的RF电平、干扰源出现时间、干扰源持续时间及出现干扰源时呈现的宽带信号功率。
除了干扰报告外，OA&M处理器108还可制备若干不同的报告，这类其它报告可以包括：模式报告(报告ANF模块100的操作模式)、状态报告(报告ANF模块100的报警与系统故障)、软硬件版本报告、头部报告(报告基站名称、宽带载波中心频率、天线号与基站扇区)、日期报告、时间报告、活动报告(报告频率数、RF电平、干扰源开始时间、干扰源持续时间和宽带信道功率)以及总结报告。
干扰报告可用于网络系统诊断，包括确定网络管理器何时要用窄带接收机28测定正试图联系或处理呼叫的移动单元的电话号码。例如，报告与控制设施可以用窄带接收机28确定移动单元正在拨打911或其它应急号码的用户，因而可决定应通过把窄带接收机28的输出传给电话网，用该窄带接收机28来处理该紧急呼叫。
另外，干扰报告可用来确定网络管理器应何时控制窄带接收机28，以获取有关干扰源的信息，并与其基站联系重新分配处理该干扰源的任务。例如，报告与控制设施可以用窄带接收机28确定例如某移动单元等干扰源的属性，其办法是在该移动单元在该窄带信道上发射信息时截获其电子序号(ESN)。知道了干扰源的属性，报告与控制设施就可同正在与该移动单元通信的基础设施联系，请求其改变该移动单元的发射频率(即移动单元正在其上发射的窄带信道的频率)，或请求其完全分出弱与干扰移动单元的通信。
另外，网络管理器可用该干扰报告使系统性能与干扰报告提供的信息相关，这种相关性可用来测定ANF模块100对增大系统容量的有效性。
执行完块412后，控制转回主程序340，继续执行块386。
现在参照图18，OA&M处理器108执行数据缓冲器中断功能500，用于检查并指示存在有效数据。功能500在块502开始检查数据。
执行了块502后，控制进到块504，检查该数据是否有效。若块504断定该数据有效，控制从块504进到506，在结束功能500之前设置一有效数据指示符。反之，若块504断定该数据无效，则控制从块504进到508，在结束功能500之前设置一无效数据指示符。
本领域的技术人员参阅了上述说明后，将明白本发明的各种修正与替代实施例。例如，虽然上述说明具体提出了在30KHz窄带信道上消除与1.25MHz宽带信号干扰的信号的干扰这一概念，但是很容易明白，这类概念适用于例如带宽为5、10或15MHz的宽带信道或例如聚合带宽为5、10或15MHz的连续信道。为适应这种较宽的带宽，下变频器组可以并行工作以覆盖1.25MHz信道组。因此，这种说明仅限于示例，不限制本发明的范围。结构细节可以明显变化而不背离本发明的精神，并保留符合所附权利要求范围的所有修正的专用权。

Claims (26)

1.一种在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的方法，其特征在于，该方法包括：
扫描至少某些窄带信道以测定其信号强度；
根据所述至少某些窄带信道的信号强度确定阈值；
识别信号强度超过该阈值的窄带信道；
识别有临时干扰的窄带信道；和
滤除频率对应于信号强度超过该阈值的窄带信道的宽带通信信号，但不滤除识别为有临时干扰的窄带信道。
2.如权利要求1所述的方法，其特征在于，根据窄带信道的信号强度超过该阈值的时间长度把窄带信道识别为具有临时干扰。
3.如权利要求1所述的方法，其特征在于，若窄带信道的信号强度超过该阈值的时间少于约20毫秒，就把这些窄带信道识别为有临时干扰。
4.一种适应在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的系统，其特征在于，该系统包括：
适应扫描至少某些窄带信道以测定其信号强度的扫描器；
适应接收宽带通信信号并从中有选择地去除窄带干扰以产生滤波的宽带通信信号的陷波模块；
耦合至扫描器和陷波模块的控制器，其中该控制器适合与扫描器一起工作，以根据至少某些窄带信道的信号强度确定阈值，识别信号强度超过该阈值的窄带信道，识别有临时干扰的窄带信道，并且控制陷波模块滤除频率对应于被识别的信号强度超过该阈值的窄带信道的宽带通信信号，但不滤除有临时干扰的窄带信道。
5.如权利要求4所述的系统，其特征在于，所述控制器适应根据窄带信道的信号强度超过该阈值的时间长度将窄带信道识别为具有临时干扰。
6.如权利要求4所述的系统，其特征在于，所述控制器适应仅在窄带信道的信号强度超过该阈值的时间少于约20毫秒时把窄带信道识别为有临时干扰。
7.一种在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的方法，其特征在于，该方法包括：
按代表窄带信道会有干扰的概率的顺序，扫描至少某些窄带信道以测定其信号强度；
根据所述至少某些窄带信道的信号强度，确定阈值；
识别信号强度超过该阈值的窄带信道；
滤除频率对应于识别的信号强度超过该阈值的窄带信道的宽带通信信号。
8.如权利要求7所述的方法，其特征在于，窄带信道会有干扰的概率以历史数据为依据。
9.一种适应在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的系统，其特征在于，该系统包括：
适应按代表窄带信道有干扰的概率的顺序，扫描至少某些窄带信道测定其信号强度的扫描器；
适应接收宽带通信信号并从中有选择地去除窄带干扰以产生滤波的宽带通信信号的陷波模块；
耦合至扫描器和陷波模块的控制器，其中该控制器适合与扫描一起工作，以根据至少某些窄带信道的信号强度确定阈值，识别信号强度超过该阈值的窄带信道，并且控制陷波模块滤除频率对应于识别的信号强度超过该阈值的窄带信道的宽带通信信号。
10.如权利要求9所述的系统，其特征在于，所述控制器适应根据历史数据确定窄带信道会有干扰的概率。
11.一种在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的方法，其特征在于，该方法包括：
扫描至少某些窄带信道以测定其信号强度；
根据所述至少某些窄带信道的信号强度确定阈值；
存贮信号强度超过该阈值的窄带信道的列表；
根据信号强度超过该阈值的窄带信道的列表识别干扰源类型；
滤除频率对应于识别的信号强度超过该阈值的窄带信道的宽带通信信号，其中根据识别的干扰源类型进行该滤除。
12.如权利要求11的方法，其特征在于，包括根据干扰源的带宽选择滤除宽带通信信号的滤波器。
13.如权利要求12所述的方法，其特征在于，用窄带滤波器滤除窄带干扰源。
14.如权利要求12所述的方法，其特征在于，滤波器滤除宽带通信信号的带宽约为干扰源的带宽。
15.一种适应在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的系统，其特征在于，该系统包括：
适应按代表窄带信道有干扰的概率的顺序，扫描至少某些窄带信道以测定其信号强度的扫描器；
适应接收宽带通信信号并从中有选择地去除窄带干扰以产生滤波的宽带通信信号的陷波模块；
耦合至扫描器和陷波模块的控制器，其中该控制器适应根据至少一些所述窄带信道中的信号强度来确定阈值，存贮信号强度超过阈值的窄带信道的列表，根据该列表识别干扰源类型，并且控制陷波模块滤除频率对应于识别的信号强度超过该阈值的窄带信道的宽带通信信号，陷波模块使用的滤波器以识别的干扰源类型为基础。
16.如权利要求15所述的系统，其特征在于，所述控制器适应根据干扰源的带宽选择滤除宽带通信信号的滤波器。
17.如权利要求16所述的系统，其特征在于，所述陷波模块应用窄带滤波器滤除窄带干扰源。
18.如权利要求16所述的系统，其特征在于，所述陷波模块使用的滤波器带宽约为该干扰源的带宽。
19.一种在频率带宽内设置窄带信道的宽带通信信号中检测并消除窄带干扰的方法，其特征在于，该方法包括：
扫描至少某些窄带信道以测定其信号强度；
根据所述至少某些窄带信道的信号强度确定阈值；
存贮信号强度超过该阈值的窄带信道的列表；
对至少某些识别的信号强度超过该阈值的窄带信道分配滤波器；
向网络管理器输出信号强度超过该阈值的窄带信道的列表。
20.如权利要求19所述的方法，其特征在于，该列表按窄带信道的信号强度安排优先度。
21.如权利要求19所述的方法，其特征在于，进行该输出，使网络管理器可接收至少某些窄带信道的信息，并可确定造成窄带信号强度超过该阈值的干扰源的属性。
22.如权利要求21所述的方法，其特征在于，网络管理器通过接收包含在窄带干扰里的干扰源属性的电子指示，确定该干扰源的属性。
23.如权利要求21所述的方法，其特征在于，电子指示是移动单元的电子序号。
24.如权利要求23所述的方法，其特征在于，一旦识别出干扰源，网络管理器就禁止该干扰源。
25.如权利要求19所述的方法，其特征在于，进行该输出，使网络管理器可接收至少某些窄带信道的信息，并且判断造成窄带信号强度超过该阈值的干扰源是否正试图发出紧急服务呼叫。
26.如权利要求25所述的方法，其特征在于，网络管理器通过截获某移动单元发射的一连串拨号数字，判断该干扰是否正试谋略发出紧急服务呼叫。
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