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@ -116,43 +116,56 @@ void rrc::get_metrics(rrc_metrics_t &m)
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uint32_t rrc::generate_sibs()
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uint32_t rrc::generate_sibs()
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{
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{
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// nof_messages includes SIB2 by default, plus all configured SIBs
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uint32_t nof_messages = 1+cfg.sibs[0].sib.sib1.N_sched_info;
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uint32_t nof_messages = 1+cfg.sibs[0].sib.sib1.N_sched_info;
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LIBLTE_RRC_SCHEDULING_INFO_STRUCT *sched_info = cfg.sibs[0].sib.sib1.sched_info;
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LIBLTE_RRC_SCHEDULING_INFO_STRUCT *sched_info = cfg.sibs[0].sib.sib1.sched_info;
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// Allocate DSLCH msg structs
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// msg is array of SI messages, each SI message msg[i] may contain multiple SIBs
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// all SIBs in a SI message msg[i] share the same periodicity
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LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT *msg = (LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT*)calloc(nof_messages, sizeof(LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT));
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LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT *msg = (LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT*)calloc(nof_messages, sizeof(LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT));
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// Copy SIB1
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// Copy SIB1 to first SI message
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msg[0].N_sibs = 1;
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msg[0].N_sibs = 1;
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memcpy(&msg[0].sibs[0], &cfg.sibs[0], sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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memcpy(&msg[0].sibs[0], &cfg.sibs[0], sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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// Copy rest of SIBs
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// Copy rest of SIBs
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for (uint32_t i=1;i<nof_messages;i++) {
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for (uint32_t sched_info_elem = 0; sched_info_elem < nof_messages; sched_info_elem++) {
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msg[i].N_sibs=0;
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uint32_t msg_index = sched_info_elem + 1; // first msg is SIB1, therefore start with second
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uint32_t j_start = 0;
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uint32_t current_msg_element_offset = 0;
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// Add SIB2 always first to i=1
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if (i == 1) {
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msg[msg_index].N_sibs = 0;
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msg[1].N_sibs++;
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memcpy(&msg[1].sibs[0], &cfg.sibs[1], sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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// SIB2 always in second SI message
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j_start=1;
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if (msg_index == 1) {
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// Save SIB2
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msg[msg_index].N_sibs++;
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memcpy(&msg[msg_index].sibs[0], &cfg.sibs[1], sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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current_msg_element_offset = 1; // make sure "other SIBs" do not overwrite this SIB2
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// Save SIB2
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memcpy(&sib2, &cfg.sibs[1].sib.sib2, sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_2_STRUCT));
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memcpy(&sib2, &cfg.sibs[1].sib.sib2, sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_2_STRUCT));
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} else {
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current_msg_element_offset = 0; // no SIB2, no offset
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}
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}
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// Add other SIBs to this message
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for (uint32_t j=0;j<sched_info[i-1].N_sib_mapping_info;j++) {
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// Add other SIBs to this message, if any
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msg[i].N_sibs++;
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for (uint32_t mapping = 0; mapping < sched_info[sched_info_elem].N_sib_mapping_info; mapping++) {
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memcpy(&msg[i].sibs[j+j_start], &cfg.sibs[(int) sched_info[i-1].sib_mapping_info[j+j_start].sib_type+2], sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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msg[msg_index].N_sibs++;
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// current_msg_element_offset skips SIB2 if necessary
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memcpy(&msg[msg_index].sibs[mapping + current_msg_element_offset],
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&cfg.sibs[(int) sched_info[sched_info_elem].sib_mapping_info[mapping].sib_type+2],
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sizeof(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_STRUCT));
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}
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}
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}
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}
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// Pack payload for all messages
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// Pack payload for all messages
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for (uint32_t i=0;i<nof_messages;i++) {
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for (uint32_t msg_index = 0; msg_index < nof_messages; msg_index++) {
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LIBLTE_BIT_MSG_STRUCT bitbuffer;
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LIBLTE_BIT_MSG_STRUCT bitbuffer;
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liblte_rrc_pack_bcch_dlsch_msg(&msg[i], &bitbuffer);
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liblte_rrc_pack_bcch_dlsch_msg(&msg[msg_index], &bitbuffer);
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srslte_bit_pack_vector(bitbuffer.msg, sib_buffer[i].msg, bitbuffer.N_bits);
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srslte_bit_pack_vector(bitbuffer.msg, sib_buffer[msg_index].msg, bitbuffer.N_bits);
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sib_buffer[i].N_bytes = (bitbuffer.N_bits-1)/8+1;
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sib_buffer[msg_index].N_bytes = (bitbuffer.N_bits-1)/8+1;
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}
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}
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free(msg);
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free(msg);
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return nof_messages;
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return nof_messages;
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}
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}
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void rrc::config_mac()
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void rrc::config_mac()
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