td-lte系统网络端无线资源控制层(rrc)-研究与测试

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1、AbstractInordertoachieveasmoothtransitionfromthe3Gtotheeraof4Gcommunication，3GPPhaslaunchedthelong-termevolutionof3Gmobilecommunication--LTEproject．TD—LTEistheevolutionanddevelopmentofTDDmodeofTD-SCDMAaswellasanewgenerationofwirelesscommunicationstechnologywith01

2、117ownintellectualproperty．Atpresent，morethan30countriesandregionsaroundtheworldhaveintroducedthecommercialservicesandterminalequipment,thecommercialtrialprojectsalsohavebeencarriedoutinChina．Becauseofitsincomparableadvantages，TD—LTEsystemhasaverysubstantialdevel

3、opment．Asthecontrolcenter,RRChasanimportantimpactontheperformanceandbehaviorsofLTEsystem．SotheR&DofRRChasagreatsignificancetotheimplementationofLTE．ThepaperisbasedontheprincipleandstructureoftheTDD—LTE，reliedontheprojectof“TD—LTEwirelessterminaltestinginstrument”

4、．ItintroducedthefunctionsandstatusesofRRCsystematically,andpaidmoreattentiononthedesignandtestingofRRCconnectioncontrolprocesses，whichhasastrongpracticalvalue．Theresearchworkinthisarticleareasfollows：1、BrieflydescribedtheLTEnetworkarchitectureandUuinterfaceprotoc

5、olstacktoshowtheresearchbackgroundandthedevelopmentstatusofLTEtechnology．ThendiscussedthesimilaritiesanddifferencesofthesystemnetworkarchitecturebetweenLTEand3GtohighlightthetechnicaladvantagesofTD-LTE．2、PaidmoreattentionontheRRCprotocolanalysisandthedesignoftheR

6、RCcommunicationprocess．Duringtheprotocolanalysis，theauthorhasfocusedondescribingtheRRCfunctionsdivisionandtheconnectioncontrolprocess；Thenbasedontheunderstandingoftheprotocol，theRRCconnectioncontrolprocessisimplementedthroughthesoRware，includingthedesignoftheRRCs

7、tatuses、interfacesandcodes，WhichareusedtoprovidethetestobjectfortheRRCthenextsection．IndesignoftheRRCconnectioncontrolprocess，AstheprotocolstackoftheLTEhassimplifiedthechannelmappingandRRCstatestoreducethetransmissiondelay,thedesignofthestatestransitionandinterfa

8、cealsohavefollowedthenewprotocolstandards，SOitCanberegardedasaninnovationinthearticle．3、Withtheexperienceobtainedfromtheprojectofthewirelessterminaltestinginst