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Wewillcontinuetoimprovethecompany'sinternalcontrolsystem,andsteadyimprovementinabilitytomanageandcontrol,optimizebusinessprocesses,toensuresmoothprocesses,responsibilitiesinplace;tofurtherstrengtheninternalcontrols,playacontrolpostindependentoversightroleofevaluationcomplyingwiththird-partyresponsibility;toactivelymakeuseofinternalaudittoolsdetectpotentialmanagement,streamline,standardizerelatedtransactions,strengtheningoperationsinaccordancewithlaw.Deepeningtheinformationmanagementtoensurefullcommunicationzeroresistance.ToconstantlyperfectERP,andBFS++,andPI,andMIS,andSCM,informationsystembasedconstruction,fullintegrationinformationsystem,achievedinformationresourcesshared;toexpandPortalsystemapplicationofbreadthanddepth,playinformationsystemonenterpriseofAssistantrole;toperfectdailyrunmaintenanceoperationofrecords,promoteproblemreasonsanalysisandsystemhandover;tostrengtheningBFS++,andERP,andSCM,technologyapplicationoftraining,improveemployeesapplicationinformationsystemofcapacityandlevel.Humanisticcaretoensurezero.TostrengtheningHumanitiescare,continuestofostercompanywindclear,andgasare,andheartShunofcultureatmosphere;strengtheninglovehelpedtrapped,caredifficultemployees;carriedoutstyleactivities,richemployeeslife;strengtheninghealthandlabourprotection,organizationcareerhealthmedical,controlcareeragainst;continuestoimplementationpsychologicalwarningpreventionsystem,trainingemployeeshealthofcharacter,andstableofmoodandenterprisingofattitude,createdfriendlyfraternityofHumanitiesenvironment.Tostrengthenriskmanagement,ensurethatthebusinessofzerorisk.Tostrengthenedbusinessplansmanagement,willbusinessbusinessplanscovertoalllevel,ensurethebusinesscancontrolincontrol;tocloseconcernfinancial,andcoalelectriclinkage,andenergy-savingscheduling,nationalpolicytrends,strengtheningtrack,activeshould;toimplementationState-ownedassetsmethod,furtherspecificationbusinessfinancialmanagement;toperfectrisktubecontrolsystem,achievedriskrecognition,andmeasure,andassessment,andreport,andcontrolfeedbackofclosedringmanagement,improveriskpreventioncapacity.Tofurtherstandardizetrading,andstrivetoachieveaccordingtolaw,standardizeandfair.Innovationofperformancemanagement,toensurethatpotentialemployeeszerofly.Tostrengthenperformancemanagement,processcontrol,enhanceemployeeevaluationandlevelsofeffectivecommunicationtoimproveperformancemanagement.Tofurtherquantifyandrefineemployeestandards...Work,fullplayparty,andbranch,andmembersinfivetypeEnterpriseconstructionintheofcorerole,andfightingfortressroleandpioneermodelrole;tocontinuestostrengtheningfourgoodleadershipconstruction清正廉洁是为政之本。在市政管理建设中，我要牢固树立廉洁勤政信念，坚持遵守纪律不打折扣、执行政策不走样子，反腐倡廉不搞形式。大力推行政务公开，对群众关心playlevelscadresinenterprisedevelopmentintheofbackbonebackbonerole;tofullstrengtheningmembersyouthwork,fullplayyouthemployeesincompanydevelopmentintheofforcerole;toimproveindependentCommissionagainstcorruptionworklevel,strengtheningonenterprisebusinesskeylinkofeffectivenessmonitored.,Andmaintainstability.Tofurtherstrengthenpublicityandeducation,improvetheoveralllegalsystem.Wemuststrengthensafetymanagement,establishandimprovetheeducation,supervision,andevaluationasoneofthetrafficsafetymanagementmechanism.ToconscientiouslysumuptheOlympicsecuritycontrols,promotingintegratedmanagementtoahigherlevel,higherstandards,ahigherlevelofdevelopment.Employees,todayislunarcalendaronDecember24,theoxBellisabouttoring,atthistimeofyear,weclearlyfeelthepulseoftheXXpowergenerationcompanytoflourish,tomoreclearlyhearXXpowergenerationcompaniesmatureandsymmetrybreathing.Recallingpastoneanotheracrossarailing,weareenthusiasticandfullofconfidence.Futuredevelopmentopportunities,wemoreexcitingfightmorespirited.Employees,letustogetheracross2013fullofchallengesandopportunities,tocreateagreen,low-costoperation,fullofhumanecareofaworld-classpowergenerationcompanyandworkhard!TheoccasionoftheSpringFestival,mysincerewishthatyouandthefamiliesofthestaffinthenewyear,goodhealth,happy,happy!第一章概论1.移动通信是指通信双方至少有一方在移动种（或者临时停留在某一非预定的位置上）进行信息传输和交换。它包括移动体之间、移动体和固定用户之间以及固定用户与移动体之间的通信。2.移动通信的主要特点：a.移动通信必须利用无线电波进行信息传输b.移动通信是在复杂的干扰环境中运行的c.移动通信可以利用的频谱资源非常有限，而移动通信业务量的需求却与日俱增d.移动通信系统的网络结构多种多样，网络管理和控制必须有效e.移动通信设备(主要是移动台)必须适于在移动环境中使用3.移动通信系统的分类：a.按多址方式可分为频分多址(FDMA)、时分多址(TDMA)和码分多址(CDMA)等；b.按业务类型可分为电话网、数据网和综合业务网；c.按工作方式可分为同频单工、异频单工、异频双工和半双工；d.按信号形式可分为模拟网和数字网。4.常用移动通信系统特点:a.无线电寻呼系统：是一种单向通信系统。b.蜂窝移动通信系统：区群（把若干相邻的小区按一定的数目划分成区群）、频率再用（区群内各小区均使用不同的频率组，而任一小区所使用的频率组，在其它区群相应的小区中还可以再用）、小区分裂（当小区所支持的用户数达到饱和时，可以将这些小区进一步分裂，以适应持续增长的业务需求）、越区切换（当移动台从一个小区进入另一相邻的小区时，其工作频率及基站与移动交换中心所用的接续链路必须从它离开的小区转换到正在进入的小区）c.无绳电话系统：以有线电话网为依托的通信方式，也可以说它是有线电话网的延伸，具有发射功率小、省电、设备简单、价格低廉、使用方便等优点，功能类似蜂窝移动通信系统，具有固定电话的功能，还可在低移动环境下具有越区切换的功能。d.集群移动通信系统用途和区别：①集群通信系统属于专用移动通信网，适用于在各个行业(或几个行业合用)中间进行调度和指挥，对网中的不同用户常常赋予不同的优先等级。蜂窝通信系统属于公众移动通信网，适用于各阶层和各行业中个人之间通信，②集群通信系统根据调度业务的特征，通常具有一定的限时功能，一次通话的限定时间大约为15~60秒(可根据业务情况调整)。蜂窝通信系统对通信时间一般不进行限制。③集群通信系统的主要服务业务是无线用户和无线用户之间的通信。蜂窝通信系统却有大量的无线用户与有线用户之间的通话业务。在集群通信系统中也允许有一定的无线用户与有线用户之间的通话业务，但一般只允许这种话务量占总业务量的5%~10%Wewillcontinuetoimprovethecompany'sinternalcontrolsystem,a