/******************************************************************************* Eurecom OpenAirInterface 2 Copyright(c) 1999 - 2010 Eurecom This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, version 2, as published by the Free Software Foundation. This program is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. The full GNU General Public License is included in this distribution in the file called "COPYING". Contact Information Openair Admin: openair_admin@eurecom.fr Openair Tech : openair_tech@eurecom.fr Forums : http://forums.eurecom.fsr/openairinterface Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France *******************************************************************************/ /*! \file rrc_common.c * \brief rrc common procedures for eNB and UE * \author Raymond Knopp and Navid Nikaein * \date 2011 * \version 1.0 * \company Eurecom * \email: raymond.knopp@eurecom.fr and navid.nikaein@eurecom.fr */ #include "defs.h" #include "extern.h" #include "LAYER2/MAC/extern.h" #include "COMMON/openair_defs.h" #include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h" #include "LAYER2/RLC/rlc.h" #include "COMMON/mac_rrc_primitives.h" #include "UTIL/LOG/log.h" #define DEBUG_RRC 1 extern eNB_MAC_INST *eNB_mac_inst; extern UE_MAC_INST *UE_mac_inst; //configure BCCH & CCCH Logical Channels and associated rrc_buffers, configure associated SRBs void openair_rrc_on(u8 Mod_id,u8 eNB_flag){ unsigned short i; if( eNB_flag == 1){ LOG_I(RRC,"[eNB %d] OPENAIR RRC IN....\n", Mod_id); rrc_config_buffer(&eNB_rrc_inst[Mod_id].SI,BCCH,1); eNB_rrc_inst[Mod_id].SI.Active=1; rrc_config_buffer(&eNB_rrc_inst[Mod_id].Srb0,CCCH,1); eNB_rrc_inst[Mod_id].Srb0.Active=1; } else{ LOG_I(RRC,"[UE %d] OPENAIR RRC IN....\n", Mod_id); for(i=0;iopenair_rrc_top_init = openair_rrc_top_init; // Rrc_xface->openair_rrc_eNB_init = openair_rrc_eNB_init; // Rrc_xface->openair_rrc_UE_init = openair_rrc_ue_init; // Rrc_xface->mac_rrc_data_ind = mac_rrc_data_ind; //Rrc_xface->mac_rrc_data_req = mac_rrc_data_req; // Rrc_xface->rrc_data_indP = (void *)rlcrrc_data_ind; // Rrc_xface->rrc_rx_tx = rrc_rx_tx; // Rrc_xface->mac_rrc_meas_ind = mac_rrc_meas_ind; // Rrc_xface->get_rrc_status = get_rrc_status; //Rrc_xface->rrc_get_status = ... // Mac_rlc_xface->mac_out_of_sync_ind=mac_out_of_sync_ind; #ifndef NO_RRM // Rrc_xface->fn_rrc=fn_rrc; #endif // LOG_D(RRC, "[RRC]INIT_GLOBAL_PARAM: Mac_rlc_xface %p, rrc_rlc_register %p,rlcrrc_data_ind%p\n",Mac_rlc_xface,Mac_rlc_xface->rrc_rlc_register_rrc,rlcrrc_data_ind); /* if((Mac_rlc_xface==NULL) || (Mac_rlc_xface->rrc_rlc_register_rrc==NULL) || (rlcrrc_data_ind==NULL)) { LOG_E(RRC,"Data structured is not initialized \n"); return -1; } */ rrc_rlc_register_rrc(rlcrrc_data_ind ,NULL); //register with rlc DCCH_LCHAN_DESC.transport_block_size=4; DCCH_LCHAN_DESC.max_transport_blocks=16; DCCH_LCHAN_DESC.Delay_class=1; DTCH_DL_LCHAN_DESC.transport_block_size=52; DTCH_DL_LCHAN_DESC.max_transport_blocks=20; DTCH_DL_LCHAN_DESC.Delay_class=1; DTCH_UL_LCHAN_DESC.transport_block_size=52; DTCH_UL_LCHAN_DESC.max_transport_blocks=20; DTCH_UL_LCHAN_DESC.Delay_class=1; Rlc_info_um.rlc_mode=RLC_UM; Rlc_info_um.rlc.rlc_um_info.timer_reordering=5; Rlc_info_um.rlc.rlc_um_info.sn_field_length=10; Rlc_info_um.rlc.rlc_um_info.is_mXch=0; //Rlc_info_um.rlc.rlc_um_info.sdu_discard_mode=16; Rlc_info_am_config.rlc_mode=RLC_AM; Rlc_info_am_config.rlc.rlc_am_info.max_retx_threshold = 50; Rlc_info_am_config.rlc.rlc_am_info.poll_pdu = 8; Rlc_info_am_config.rlc.rlc_am_info.poll_byte = 1000; Rlc_info_am_config.rlc.rlc_am_info.t_poll_retransmit = 15; Rlc_info_am_config.rlc.rlc_am_info.t_reordering = 50; Rlc_info_am_config.rlc.rlc_am_info.t_status_prohibit = 10; #ifndef NO_RRM if(L3_xface_init()) return(-1); #endif return 0; } #ifndef NO_RRM /*------------------------------------------------------------------------------*/ int L3_xface_init(void){ /*------------------------------------------------------------------------------*/ int ret = 0; #ifdef USER_MODE int sock ; LOG_D(RRC, "[L3_XFACE] init de l'interface \n"); if(open_socket(&S_rrc, RRC_RRM_SOCK_PATH, RRM_RRC_SOCK_PATH,0)==-1) return (-1); if (S_rrc.s == -1) { return (-1); } socket_setnonblocking(S_rrc.s); msg("Interface Connected... RRM-RRC\n"); return 0 ; #else ret=rtf_create(RRC2RRM_FIFO,32768); if (ret < 0) { msg("[openair][MAC][INIT] Cannot create RRC2RRM fifo %d (ERROR %d)\n",RRC2RRM_FIFO,ret); return(-1); } else{ msg("[openair][MAC][INIT] Created RRC2RRM fifo %d\n",RRC2RRM_FIFO); rtf_reset(RRC2RRM_FIFO); } ret=rtf_create(RRM2RRC_FIFO,32768); if (ret < 0) { msg("[openair][MAC][INIT] Cannot create RRM2RRC fifo %d (ERROR %d)\n",RRM2RRC_FIFO,ret); return(-1); } else{ msg("[openair][MAC][INIT] Created RRC2RRM fifo %d\n",RRM2RRC_FIFO); rtf_reset(RRM2RRC_FIFO); } return(0); #endif } #endif void rrc_config_buffer(SRB_INFO *Srb_info, u8 Lchan_type, u8 Role){ Srb_info->Rx_buffer.payload_size = 0; Srb_info->Tx_buffer.payload_size = 0; } /*------------------------------------------------------------------------------*/ void openair_rrc_top_init(int eMBMS_active, u8 cba_group_active){ /*-----------------------------------------------------------------------------*/ int i; uint8_t size; OAI_UECapability_t *UECap; // uint8_t dummy_buffer[100]; LOG_D(RRC,"[OPENAIR][INIT] Init function start: NB_UE_INST=%d, NB_eNB_INST=%d\n", NB_UE_INST,NB_eNB_INST); if (NB_UE_INST>0){ UE_rrc_inst = (UE_RRC_INST*)malloc16(NB_UE_INST*sizeof(UE_RRC_INST)); memset(UE_rrc_inst,0,NB_UE_INST*sizeof(UE_RRC_INST)); LOG_D(RRC,"ALLOCATE %d Bytes for UE_RRC_INST @ %p\n",(unsigned int)(NB_UE_INST*sizeof(UE_RRC_INST)),UE_rrc_inst); // fill UE capability UECap = fill_ue_capability(); for (i=0;isdu; UE_rrc_inst[i].UECapability_size = UECap->sdu_size; } /* do_UECapabilityEnquiry(0, dummy_buffer, 0, 0);*/ } else UE_rrc_inst=NULL; if (NB_eNB_INST>0){ eNB_rrc_inst = (eNB_RRC_INST*)malloc16(NB_eNB_INST*sizeof(eNB_RRC_INST)); memset(eNB_rrc_inst,0,NB_eNB_INST*sizeof(eNB_RRC_INST)); #ifdef Rel10 eNB_rrc_inst->MBMS_flag = (uint8_t)eMBMS_active; #endif #ifdef CBA eNB_rrc_inst->num_active_cba_groups = cba_group_active; #endif LOG_D(RRC,"ALLOCATE %d Bytes for eNB_RRC_INST @ %p\n",(unsigned int)(NB_eNB_INST*sizeof(eNB_RRC_INST)),eNB_rrc_inst); }else eNB_rrc_inst=NULL; #ifndef NO_RRM #ifndef USER_MODE Header_buf=(char*)malloc16(sizeof(msg_head_t)); Data=(char*)malloc16(2400); Header_read_idx=0; Data_read_idx=0; Header_size=sizeof(msg_head_t); #endif //NO_RRM Data_to_read=0; #endif //USER_MODE } void rrc_top_cleanup(void){ if (NB_UE_INST>0) free(UE_rrc_inst); if (NB_eNB_INST>0) free(eNB_rrc_inst); } u16 T300[8] = {100,200,300,400,600,1000,1500,2000}; u16 T310[8] = {0,50,100,200,500,1000,2000}; u16 N310[8] = {1,2,3,4,6,8,10,20}; u16 N311[8] = {1,2,3,4,6,8,10,20}; void rrc_t310_expiration(u32 frame,u8 Mod_id,u8 eNB_index) { if (UE_rrc_inst[Mod_id].Info[eNB_index].State!=RRC_CONNECTED) { LOG_D(RRC,"Timer 310 expired, going to RRC_IDLE\n"); UE_rrc_inst[Mod_id].Info[eNB_index].State=RRC_IDLE; UE_rrc_inst[Mod_id].Info[eNB_index].UE_index=0xffff; UE_rrc_inst[Mod_id].Srb0[eNB_index].Rx_buffer.payload_size=0; UE_rrc_inst[Mod_id].Srb0[eNB_index].Tx_buffer.payload_size=0; UE_rrc_inst[Mod_id].Srb1[eNB_index].Srb_info.Rx_buffer.payload_size=0; UE_rrc_inst[Mod_id].Srb1[eNB_index].Srb_info.Tx_buffer.payload_size=0; if(UE_rrc_inst[Mod_id].Srb2[eNB_index].Active==1){ msg("[RRC Inst %d] eNB_index %d, Remove RB %d\n ",Mod_id,eNB_index,UE_rrc_inst[Mod_id].Srb2[eNB_index].Srb_info.Srb_id); rrc_pdcp_config_req (Mod_id+NB_eNB_INST, frame, 0, ACTION_REMOVE, UE_rrc_inst[Mod_id].Srb2[eNB_index].Srb_info.Srb_id); rrc_rlc_config_req(Mod_id+NB_eNB_INST,frame,0,ACTION_REMOVE,UE_rrc_inst[Mod_id].Srb2[eNB_index].Srb_info.Srb_id,SIGNALLING_RADIO_BEARER,Rlc_info_um); UE_rrc_inst[Mod_id].Srb2[eNB_index].Active=0; UE_rrc_inst[Mod_id].Srb2[eNB_index].Status=IDLE; UE_rrc_inst[Mod_id].Srb2[eNB_index].Next_check_frame=0; } } else { // Restablishment procedure LOG_D(RRC,"Timer 310 expired, trying RRCRestablishment ...\n"); } } RRC_status_t rrc_rx_tx(u8 Mod_id,u32 frame, u8 eNB_flag,u8 index){ if(eNB_flag == 0) { // check timers if (UE_rrc_inst[Mod_id].Info[index].T300_active==1) { if ((UE_rrc_inst[Mod_id].Info[index].T300_cnt % 10) == 0) LOG_D(RRC,"[UE %d][RAPROC] Frame %d T300 Count %d ms\n",Mod_id,frame, UE_rrc_inst[Mod_id].Info[index].T300_cnt); if (UE_rrc_inst[Mod_id].Info[index].T300_cnt == T300[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.t300]) { UE_rrc_inst[Mod_id].Info[index].T300_active = 0; // ALLOW CCCH to be used UE_rrc_inst[Mod_id].Srb0[index].Tx_buffer.payload_size=0; rrc_ue_generate_RRCConnectionRequest(Mod_id,frame,index); return(RRC_ConnSetup_failed); } UE_rrc_inst[Mod_id].Info[index].T300_cnt++; } if (UE_rrc_inst[Mod_id].sib2[index]) { if (UE_rrc_inst[Mod_id].Info[index].N310_cnt==N310[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.n310]) { UE_rrc_inst[Mod_id].Info[index].T310_active=1; } } else { // in case we have not received SIB2 yet if (UE_rrc_inst[Mod_id].Info[index].N310_cnt==100) { UE_rrc_inst[Mod_id].Info[index].N310_cnt = 0; return RRC_PHY_RESYNCH; } } if (UE_rrc_inst[Mod_id].Info[index].T310_active==1) { if (UE_rrc_inst[Mod_id].Info[index].N311_cnt == N311[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.n311]) { UE_rrc_inst[Mod_id].Info[index].T310_active=0; UE_rrc_inst[Mod_id].Info[index].N311_cnt=0; } if ((UE_rrc_inst[Mod_id].Info[index].T310_cnt % 10) == 0) LOG_D(RRC,"[UE %d] Frame %d T310 Count %d ms\n",Mod_id,frame, UE_rrc_inst[Mod_id].Info[index].T310_cnt); if (UE_rrc_inst[Mod_id].Info[index].T310_cnt == T310[UE_rrc_inst[Mod_id].sib2[index]->ue_TimersAndConstants.t310]) { UE_rrc_inst[Mod_id].Info[index].T310_active = 0; rrc_t310_expiration(frame,Mod_id,index); return(RRC_PHY_RESYNCH); } UE_rrc_inst[Mod_id].Info[index].T310_cnt++; } } return(RRC_OK); }