mirror of https://github.com/PentHertz/srsLTE.git
mac_test: add periodic BSR test
This commit is contained in:
Andre Puschmann
parent
d5286e70aa
commit
d6ef66b0dc
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@ -1324,6 +1324,282 @@ int mac_ul_sch_regular_bsr_retx_test()
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return SRSLTE_SUCCESS;
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}
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/**
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* Test correct operation of periodic BSR timer
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*
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* with { BSR sent for LCID with priority X }
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* ensure that {
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* when { when more data for LCID with priority X becomes available }
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* then { No further BSR are sent until reTx BSR timer expires }
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*
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* with { BSR sent for LCID with priority X }
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* ensure that {
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* when { when more data for LCID with priority higher than X becomes available }
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* then { A new BSR is sent even if reTx BSR timer did not expire yet }
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*/
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int mac_ul_sch_periodic_bsr_test()
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{
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// 1st PDU, SBSR, 7 B SDU
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const uint8_t tv1[] = {0x3d, 0x03, 0xd0, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03};
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// Following PDUs include only SDUs
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const uint8_t tv2[] = {0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03};
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// 3rd PDU contains LBSR after SRB1 has also data to send
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const uint8_t tv3[] = {0x3e, 0x01, 0x04, 0x00, 0x11, 0x01, 0x01, 0x01, 0x01, 0x01};
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// 4th PDU contains LCID 1 and LCID 3 SDUs
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const uint8_t tv4[] = {0x21, 0x05, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x03};
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srslte::log_filter rlc_log("RLC");
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rlc_log.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc_log.set_hex_limit(100000);
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// dummy layers
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phy_dummy phy;
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rlc_dummy rlc(&rlc_log);
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rrc_dummy rrc;
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stack_dummy stack;
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// the actual MAC
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mac mac("MAC", &stack.task_sched);
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stack.init(&mac, &phy);
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mac.init(&phy, &rlc, &rrc);
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mac_cfg_t mac_cfg = {};
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mac_cfg.bsr_cfg.periodic_timer = 20;
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mac.set_config(mac_cfg);
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const uint16_t crnti = 0x1001;
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mac.set_ho_rnti(crnti, 0);
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// generate configs for two LCIDs with different priority and PBR
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std::vector<logical_channel_config_t> lcids;
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logical_channel_config_t config = {};
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// The config of SRB1
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config.lcid = 1;
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config.lcg = 0;
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config.PBR = 8; // 8 kByte/s
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config.BSD = 100; // 100ms
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config.priority = 7;
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lcids.push_back(config);
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// DRB
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config.lcid = 3;
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config.lcg = 3;
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config.PBR = 0; // no PBR
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config.priority = 15; // lower prio than SRB1
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lcids.push_back(config);
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// setup LCIDs in MAC
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for (auto& channel : lcids) {
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mac.setup_lcid(channel.lcid, channel.lcg, channel.priority, channel.PBR, channel.BSD);
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}
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// generate DRB data
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rlc.write_sdu(3, 100);
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// generate TTI
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uint32 tti = 0;
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stack.run_tti(tti++);
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usleep(100);
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bool ndi = true;
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// create UL action and grant and push MAC PDU
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi;
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mac_grant.tb.tbs = 10; // room for short BSR and first SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv1, sizeof(tv1)) == 0);
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}
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// the periodic BSR timer is 20ms, so the 19 following PDUs
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// should not contain any BSR if only DRB data is available (and gets added in each TTI)
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for (uint32_t i = 0; i < 19; i++) {
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// generate more DRB data every TTI
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rlc.write_sdu(3, 10);
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// trigger next TTI
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stack.run_tti(tti++);
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usleep(100);
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// toggle NDI
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ndi = !ndi;
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// create UL action and grant and push MAC PDU
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi;
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mac_grant.tb.tbs = 10; // give room for MAC subheaders, Long BSR and SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv2, sizeof(tv2)) == 0);
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}
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}
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// trigger next TTI
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stack.run_tti(tti++);
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usleep(100);
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// toggle NDI
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ndi = !ndi;
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// Periodic BSR timer expired, next PDU will contain 1 SBSR again
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi;
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mac_grant.tb.tbs = 10; // room for short BSR and first SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv1, sizeof(tv1)) == 0);
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}
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// Now we do the same test again, and provide UL grant, but this time less than periodic BSR timer
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for (uint32_t i = 0; i < 10; i++) {
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// generate more DRB data every TTI
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rlc.write_sdu(3, 10);
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// trigger next TTI
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stack.run_tti(tti++);
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usleep(100);
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// toggle NDI
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ndi = !ndi;
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// create UL action and grant and push MAC PDU
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi;
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mac_grant.tb.tbs = 10; // give room for MAC subheaders, Long BSR and SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv2, sizeof(tv2)) == 0);
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}
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}
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// now we generate a high-priority SRB1 SDU
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rlc.write_sdu(1, 10);
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// trigger next TTI
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stack.run_tti(tti++);
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usleep(100);
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ndi = !ndi;
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// if a higher prio LCID has data to send, a BSR should be generated, even though the timer hasn't expired yet
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi; // toggled NDI
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mac_grant.tb.tbs = 10; // give room for MAC subheaders, Long BSR and SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv3, sizeof(tv3)) == 0);
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}
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// trigger TTI again
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stack.run_tti(tti++);
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usleep(100);
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ndi = !ndi;
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// this PDU should again only contain SDUs (last part of LCID1 and then LCID3)
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{
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mac_interface_phy_lte::tb_action_ul_t ul_action = {};
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mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
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mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
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mac_grant.tb.ndi_present = true;
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mac_grant.tb.ndi = ndi; // toggled NDI
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mac_grant.tb.tbs = 10; // give room for MAC subheaders, Long BSR and SDU
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int cc_idx = 0;
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// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
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mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
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// print generated PDU
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mac_log->info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
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#if HAVE_PCAP
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pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1, 0);
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#endif
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TESTASSERT(memcmp(ul_action.tb.payload, tv4, sizeof(tv4)) == 0);
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}
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// make sure MAC PDU thread picks up before stopping
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stack.run_tti(tti);
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mac.stop();
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return SRSLTE_SUCCESS;
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}
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// Single byte MAC PDU
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int mac_ul_sch_pdu_one_byte_test()
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{
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@ -1949,6 +2225,11 @@ int main(int argc, char** argv)
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return -1;
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}
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if (mac_ul_sch_periodic_bsr_test()) {
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printf("mac_ul_sch_periodic_bsr_test() test failed.\n");
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return -1;
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}
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if (mac_ul_sch_pdu_one_byte_test()) {
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printf("mac_ul_sch_pdu_one_byte_test() test failed.\n");
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return -1;
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