RRC-Redirection

已知的情报：

情况1：在寻呼的过程中直接指定切换到另一个小区

情况2：在RRCConnectionRelease（连接释放）时指定一个连接的小区

TAU Reject(Tracking Area Update)

Attach Reject

eNB向UE发送RRC Connection Setup消息时，该消息包含了建立SRB1承载信息和无线资源配置信息，考虑在这一过程直接指定无线资源信息？

srsenb/hdr/stack/rrc/rrc.h

$namespace class class class class class sl ap_ inte ace_rrc ; cp_inte ace_rrc ; •c _ interf ace_rrc ; static const char = {"IDLE", "WAIT FOR cm COMPLETE", "WAIT FOR SECURITY , "WAIT FOR UE CAPABILITIY "WAIT FOR cm RECCNF COMPLETE" , "RRC cmNECTED", "RELEASE ;$

srsenb/src/stack/rrc.cc

$struct cc_cfg_t { uint32_t srsran uint32_t e nb_CC_ dl_cfg false; = e; ///< CC index // if is periodic CQI$

$188 189 19B // This function is called from PRACH worker (can •alt) int rrc mti, const auto user_it users. find(mti); if (user_it users. end()) if (mti SRSRQN_MRNTI) // only non—emems RNT1s are present in user •ap u this, mti, ; if (u*initO * SRSRAu_succEss) logger. user rnti=OxXx — Failed to allocate user resources", rnti); return SRSRAN_ERROR; users. insert(std : : std : : •ove(u))); rlc*add _ user(rnti ) ; new user mti); user (already exists)" , mti); if (mti = { for (autos : •cch . msg. CIO uint32_t Lcid üs_iten. ; // adding UE Object to ANTI "ithOut scheduling configuration (broadcast not part 04 scheduling) NULL); tcid, srsran false)); return SRSRAN_SUcc€ss;$

猜测这个函数有用.jpg

![251 279 // Note: this method is not part LIE nethOdS, because the UE Context not exist “hen is Sent void rrc : : mti) // pack the and send to PDCP srsran : : pdu = srsran : : nuLIptr) { logger. Eau’) ; return; asnl ; bit_ref ; if pack(bref) asnl : : SRSASN_SLRCESS) { •Failed to pack [X-cccH-Msg: return ; = bref. ; char buf32J = o; TX, . , srbe) Std

srsenb/src/stack/rrc/rrc_nr.cc