Move all GPRS helper function to its own file and component
This is a first step towards refactoring of all functions to use MS and Ul/DlTBF objects containing state. Change-Id: Ieae27d6e707f79ec2145864ef5cd67ddbbec9314
This commit is contained in:
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0232504843
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module GPRS_Components {
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/*
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* Osmocom PCU test suite in TTCN-3, components for GPRS handlng
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* (C) 2018-2019 Harald Welte <laforge@gnumonks.org>
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* (C) 2019 Vadim Yanitskiy <axilirator@gmail.com>
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* (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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* All rights reserved.
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*
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* Released under the terms of GNU General Public License, Version 2 or
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* (at your option) any later version.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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import from General_Types all;
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import from Osmocom_Types all;
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import from GSM_Types all;
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import from GSM_RR_Types all;
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import from Osmocom_VTY_Functions all;
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import from TELNETasp_PortType all;
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import from MobileL3_GMM_SM_Types all;
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import from RLCMAC_CSN1_Types all;
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import from RLCMAC_CSN1_Templates all;
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import from RLCMAC_Types all;
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import from RLCMAC_Templates all;
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import from MobileL3_CommonIE_Types all;
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import from L3_Templates all;
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import from NS_Types all;
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import from BSSGP_Types all;
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import from Osmocom_Gb_Types all;
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import from BSSGP_Emulation all; /* BssgpConfig */
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import from NS_Emulation all; /* NSConfiguration */
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import from UD_Types all;
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import from PCUIF_Types all;
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import from PCUIF_CodecPort all;
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import from PCUIF_Components all;
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import from IPL4asp_Types all;
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import from Native_Functions all;
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import from SGSN_Components all;
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type component MS_BTS_IFACE_CT {
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/* Virtual BTS component */
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var RAW_PCU_BTS_CT vc_BTS;
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/* Connection to the BTS component (one for now) */
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port RAW_PCU_MSG_PT BTS;
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/* Value at which Countdown Procedure starts. Announced by network (GPRS Cell Options as per TS 04.60 Chapter 12.24) */
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var uint4_t g_bs_cv_max := 4;
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}
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function f_shutdown(charstring file, integer line,
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boolean final := false)
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runs on MS_BTS_IFACE_CT {
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/* Determine if the test case was aborted in the middle */
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if (not final) {
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log("Test case ", testcasename(), " aborted at ", file, ":", line);
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} else {
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/* Guard verdict to avoid 'none' */
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setverdict(pass);
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}
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/* Properly shutdown virtual BTS and its clock generator */
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BTS.send(ts_RAW_PCU_CMD(GENERAL_CMD_SHUTDOWN));
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vc_BTS.done; /* wait untill it's done */
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/* Shutdown the others and MTC */
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all component.stop;
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mtc.stop;
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}
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template AckNackDescription t_AckNackDescription_init := {
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final_ack := '0'B,
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starting_seq_nr := 0,
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receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000000'B
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}
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function f_rlcmac_dl_block_get_tfi(RlcmacDlBlock dl_block)
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runs on MS_BTS_IFACE_CT return uint5_t {
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if (ischosen(dl_block.data)) {
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return dl_block.data.mac_hdr.hdr_ext.tfi;
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} else if (ischosen(dl_block.data_egprs)) {
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return dl_block.data_egprs.mac_hdr.tfi;
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} else { /* Ctrl block */
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if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(tr_DynamicAllocation(?))))) {
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return dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ul_tfi_assignment;
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}
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if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(tr_DynamicAllocation(?))))) {
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return dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ul_tfi_assignment;
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}
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}
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setverdict(fail, "DlBlock doesn't contain a TFI:", dl_block);
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f_shutdown(__BFILE__, __LINE__);
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return 0; /* make compiler happy */
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}
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/* Get the Chan coding command from a dl block containing PACCH UL Assignment */
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function f_rlcmac_dl_block_get_assigned_ul_cs_mcs(RlcmacDlBlock dl_block)
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runs on MS_BTS_IFACE_CT return CodingScheme {
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if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(?)))) {
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return f_rlcmac_block_ChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.gprs.ch_coding_cmd);
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}
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if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(?)))) {
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return f_rlcmac_block_EgprsChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.egprs.chan_coding_cmd);
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}
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setverdict(fail, "DlBlock doesn't contain CS_MCS information:", dl_block);
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f_shutdown(__BFILE__, __LINE__);
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return CS_1; /* make compiler happy */
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}
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/* TS 44.060 sec 12.3 Ack/Nack Description */
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function f_acknackdesc_ack_block(inout AckNackDescription desc, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B)
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{
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var uint7_t bsn;
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var integer i;
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var integer inc;
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if (ischosen(dl_block.data)) {
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bsn := dl_block.data.mac_hdr.hdr_ext.bsn;
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} else {
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bsn := dl_block.data_egprs.mac_hdr.bsn1;
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}
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inc := bsn - desc.starting_seq_nr + 1;
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/* Filling hole? */
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if (bsn < desc.starting_seq_nr) {
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desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - (desc.starting_seq_nr - bsn)] := int2bit(1, 1);
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return;
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}
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/* SSN is increased, and so RBB values need to be moved */
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for (i := 0; i < lengthof(desc.receive_block_bitmap) - inc; i := i+1) {
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desc.receive_block_bitmap[i] := desc.receive_block_bitmap[i + inc];
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}
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for (i := lengthof(desc.receive_block_bitmap) - inc; i < lengthof(desc.receive_block_bitmap) - 1; i := i+1) {
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desc.receive_block_bitmap[i] := int2bit(0, 1);
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}
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/* Now we can set current bit and update SSN */
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desc.starting_seq_nr := bsn + 1;
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desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - 1] := int2bit(1, 1);
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/* Finally update the final_ack bit as requested: */
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desc.final_ack := final_ack;
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}
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/* This function can be used to send DATA.cnf in response to the IUT originated DATA.req.
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* NOTE: it's the responsibility of caller to make sure that pcu_msg contains u.data_req. */
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function f_pcuif_tx_data_cnf(in PCUIF_Message pcu_msg)
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runs on MS_BTS_IFACE_CT {
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var PCUIF_Message pcu_msg_cnf := {
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msg_type := PCU_IF_MSG_DATA_CNF,
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bts_nr := pcu_msg.bts_nr,
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spare := pcu_msg.spare,
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u := { data_cnf := pcu_msg.u.data_req }
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};
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/* PCU wants DATA.cnf containing basically everything that was in DATA.req,
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* but PCU_IF_SAPI_PCH is a special case - paging group shall be excluded. */
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if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) {
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pcu_msg_cnf.u.data_cnf.data := substr(pcu_msg.u.data_req.data, 3,
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pcu_msg.u.data_req.len - 3);
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}
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BTS.send(pcu_msg_cnf);
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}
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function f_pcuif_rx_imm_ass(out GsmRrMessage rr_imm_ass,
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template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH,
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template GsmRrMessage t_imm_ass := ?,
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uint8_t bts_nr := 0)
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runs on MS_BTS_IFACE_CT return boolean {
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var PCUIF_Message pcu_msg;
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var octetstring data;
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timer T;
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T.start(2.0);
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alt {
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[] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0,
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sapi := sapi, data := ?)) -> value pcu_msg {
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/* On PCH the payload is prefixed with paging group (3 octets): skip it.
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* TODO: add an additional template parameter, so we can match it. */
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if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) {
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data := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
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} else {
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data := pcu_msg.u.data_req.data;
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}
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rr_imm_ass := dec_GsmRrMessage(data);
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if (not match(rr_imm_ass, t_imm_ass)) {
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/* Not for us? Wait for more. */
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repeat;
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}
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log("Rx Immediate Assignment: ", rr_imm_ass);
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setverdict(pass);
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return true;
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}
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[] BTS.receive { repeat; }
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[] T.timeout {
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setverdict(fail, "Timeout waiting for Immediate Assignment");
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}
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}
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return false;
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}
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/* One phase packet access (see 3GPP TS 44.018, table 9.1.8.1) */
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const BIT8 chan_req_def := '01111000'B;
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/* Establish an Uplink TBF by sending RACH.ind towards the PCU */
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function f_establish_tbf(out GsmRrMessage rr_imm_ass, uint8_t bts_nr := 0,
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uint16_t ra := bit2int(chan_req_def),
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uint8_t is_11bit := 0,
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PCUIF_BurstType burst_type := BURST_TYPE_0,
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TimingAdvance ta := 0)
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runs on MS_BTS_IFACE_CT return boolean {
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var uint32_t fn;
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/* FIXME: ask the BTS component to give us the current TDMA fn */
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fn := 1337 + ta;
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/* Send RACH.ind */
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log("Sending RACH.ind on fn=", fn, " with RA=", ra, ", TA=", ta);
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BTS.send(ts_PCUIF_RACH_IND(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0,
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ra := ra, is_11bit := is_11bit,
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burst_type := burst_type,
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fn := fn, arfcn := 871,
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qta := ta * 4));
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/* 3GPP TS 44.018, table 9.1.8.1, note 2b: Request Reference shall be set to 127
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* when Immediate Assignment is triggered by EGPRS Packet Channel Request. Here
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* we assume that 11 bit RA always contains EGPRS Packet Channel Request. */
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if (is_11bit != 0) { ra := 127; }
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/* Expect Immediate (TBF) Assignment on TS0/AGCH */
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return f_pcuif_rx_imm_ass(rr_imm_ass, PCU_IF_SAPI_AGCH,
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tr_IMM_TBF_ASS(false, ra, fn),
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bts_nr := bts_nr);
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}
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function f_imm_ass_verify_ul_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketUlAssign ul_tbf_ass, template PacketUlAssign ul_ass := tr_PacketUlDynAssign)
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runs on MS_BTS_IFACE_CT {
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/* Make sure we received an UL TBF Assignment */
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if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(ul_ass)))) {
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ul_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul;
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log("Rx Uplink TBF assignment: ", ul_tbf_ass);
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setverdict(pass);
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} else {
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setverdict(fail, "Failed to match UL TBF Assignment");
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f_shutdown(__BFILE__, __LINE__);
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}
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}
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function f_imm_ass_verify_dl_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketDlAssign dl_tbf_ass)
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runs on MS_BTS_IFACE_CT {
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/* Make sure we received a DL TBF Assignment */
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if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := true, rest := tr_IaRestOctets_DLAss(?)))) {
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dl_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl;
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log("Rx Downlink TBF assignment: ", dl_tbf_ass);
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setverdict(pass);
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} else {
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setverdict(fail, "Failed to match DL TBF Assignment");
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f_shutdown(__BFILE__, __LINE__);
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}
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}
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/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
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function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0, uint32_t fn := 0)
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runs on MS_BTS_IFACE_CT {
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var template RAW_PCU_EventParam ev_param := {tdma_fn := ? };
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BTS.send(ts_PCUIF_DATA_IND(bts_nr := 0, trx_nr := 0, ts_nr := 7, block_nr := 0,
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sapi := PCU_IF_SAPI_PDTCH, data := data,
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fn := fn, arfcn := 871, lqual_cb := lqual_cb));
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if (fn != 0) {
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ev_param := {tdma_fn := fn };
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}
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BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_SENT, ev_param));
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}
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/* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */
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function f_pcuif_rx_data_req(out PCUIF_Message pcu_msg)
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runs on MS_BTS_IFACE_CT {
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BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7,
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sapi := PCU_IF_SAPI_PDTCH, fn := 0,
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arfcn := 871, block_nr := 0));
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BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7,
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sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg;
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}
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/* Expect an Immediate Assignment (paging) from PCU on PCUIF on specified sapi. */
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function f_pcuif_rx_pch_imm_tbf_ass(out GsmRrMessage rr_imm_ass)
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runs on MS_BTS_IFACE_CT {
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var PCUIF_Message pcu_msg;
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var octetstring macblock;
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BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
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sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
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/* First 3 bytes contain paging group: */
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macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
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rr_imm_ass := dec_GsmRrMessage(macblock);
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if (not match(rr_imm_ass, tr_IMM_TBF_ASS())) {
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setverdict(fail, "Failed to match Immediate Assignment: ", rr_imm_ass);
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f_shutdown(__BFILE__, __LINE__);
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}
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f_pcuif_tx_data_cnf(pcu_msg);
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}
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/* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */
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function f_pcuif_rx_pch_pag_req1(template MobileIdentityV mi1 := ?,
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template integer pag_group := ?)
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runs on MS_BTS_IFACE_CT return GsmRrMessage {
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var GsmRrMessage rr_pag_req1;
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var PCUIF_Message pcu_msg;
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var octetstring imsi_suff_octstr;
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var integer pag_group_rx;
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var octetstring macblock;
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BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
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sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
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/* First 3 bytes contain IMSI suffix to calculate paging group: */
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imsi_suff_octstr := substr(pcu_msg.u.data_req.data, 0, 3);
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pag_group_rx := str2int(oct2char(imsi_suff_octstr[0])) * 100 +
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str2int(oct2char(imsi_suff_octstr[1])) * 10 +
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str2int(oct2char(imsi_suff_octstr[2]));
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/* Make sure we've got RR Paging Request Type 1 for a given MI */
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macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
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rr_pag_req1 := dec_GsmRrMessage(macblock);
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if (not match(rr_pag_req1, tr_PAG_REQ1(tr_MI_LV(mi1)))) {
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setverdict(fail, "Failed to match Paging Request Type 1: ", rr_pag_req1);
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f_shutdown(__BFILE__, __LINE__);
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}
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/* Make sure that received paging froup matches the expected one */
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if (not match(pag_group_rx, pag_group)) {
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setverdict(fail, "Paging group", pag_group_rx, " does not match expected ", pag_group);
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f_shutdown(__BFILE__, __LINE__);
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}
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f_pcuif_tx_data_cnf(pcu_msg);
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return rr_pag_req1;
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}
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/* Send one rlcmac UL block adding necessary extra padding at the end.
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* returns length of extra padding added at the end, in octets.
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* FIXME: Only supports CS-1 so far.
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*/
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function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0, uint32_t fn := 0)
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runs on MS_BTS_IFACE_CT return integer {
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var octetstring data;
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var integer padding_len;
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/* Encode the payload of DATA.ind */
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data := enc_RlcmacUlBlock(valueof(ul_data));
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padding_len := 23 - lengthof(data);
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data := f_pad_oct(data, 23, '00'O); /* CS-1 */
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/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
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f_pcuif_tx_data_ind(data, lqual_cb, fn);
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return padding_len;
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}
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function f_tx_rlcmac_ul_n_blocks(uint5_t tfi, inout uint14_t bsn, integer num_blocks := 1, template (omit) GprsTlli tlli := omit)
|
||||
runs on MS_BTS_IFACE_CT return octetstring {
|
||||
var octetstring total_payload := ''O;
|
||||
var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA(
|
||||
tfi := tfi,
|
||||
cv := 15, /* num UL blocks to be sent (to be overridden in loop) */
|
||||
bsn := 0, /* To be generated in loop */
|
||||
blocks := { /* To be generated in loop */ });
|
||||
|
||||
if (not istemplatekind(tlli, "omit")) {
|
||||
ul_data.data.mac_hdr.tlli_ind := true;
|
||||
ul_data.data.tlli := tlli;
|
||||
}
|
||||
|
||||
for (var integer i := 0; i < num_blocks; i := i + 1) {
|
||||
var integer padding_len;
|
||||
var octetstring payload := f_rnd_octstring(10);
|
||||
/* Prepare a new UL block (CV, random payload) */
|
||||
var integer cv := num_blocks - i - 1;
|
||||
if (cv > g_bs_cv_max) {
|
||||
cv := 15;
|
||||
}
|
||||
ul_data.data.mac_hdr.countdown := cv;
|
||||
ul_data.data.mac_hdr.bsn := bsn + i;
|
||||
ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(payload)) };
|
||||
padding_len := f_tx_rlcmac_ul_block(ul_data);
|
||||
total_payload := total_payload & payload & f_pad_oct(''O, padding_len, '00'O);
|
||||
}
|
||||
bsn := valueof(ul_data.data.mac_hdr.bsn) + 1; /* update bsn to point to next one */
|
||||
return total_payload;
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block(out RlcmacDlBlock dl_block, out uint32_t dl_fn, template (present) CodingScheme exp_cs_mcs := ?)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var PCUIF_Message pcu_msg;
|
||||
f_pcuif_rx_data_req(pcu_msg);
|
||||
dl_block := dec_RlcmacDlBlock(pcu_msg.u.data_req.data);
|
||||
dl_fn := pcu_msg.u.data_req.fn;
|
||||
|
||||
var integer len := lengthof(pcu_msg.u.data_req.data);
|
||||
var CodingScheme cs_mcs := f_rlcmac_block_len2cs_mcs(len)
|
||||
if (not match(f_rlcmac_block_len2cs_mcs(len), exp_cs_mcs)) {
|
||||
setverdict(fail, "Failed to match Coding Scheme exp ", exp_cs_mcs, " vs ", cs_mcs, " (", len, ")");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_ack_nack(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK(ul_tfi := ?, tlli := ?))) {
|
||||
setverdict(fail, "Failed to match Packet Uplink ACK / NACK");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DUMMY_CTRL())) {
|
||||
setverdict(fail, "Failed to match Packet DUMMY DL");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_pkt_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Downlink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_pkt_ul_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_UL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Uplink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_pkt_dl_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Downlink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
|
||||
function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ())) {
|
||||
setverdict(fail, "Failed to match Packet Paging Request: ", dl_block, " vs ", tr_RLCMAC_PACKET_PAG_REQ());
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
/* This function does what could probably be done with templates */
|
||||
function f_rlcmac_dl_block_verify_data_gprs(in RlcmacDlDataBlock data_block,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint7_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
if (not match(data_block.mac_hdr.hdr_ext.bsn, exp_bsn)) {
|
||||
setverdict(fail, "DL block BSN doesn't match: ",
|
||||
data_block.mac_hdr.hdr_ext.bsn, " vs exp ", exp_bsn);
|
||||
}
|
||||
|
||||
if (lengthof(data_block.blocks) < 1) {
|
||||
setverdict(fail, "DL block has no LLC payload: ", data_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (not match(data_block.blocks[0].payload, data)) {
|
||||
setverdict(fail, "Failed to match content of LLC payload in DL Block: ",
|
||||
data_block.blocks[0].payload, " vs ", data);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* Check next data blocks contain dummy frames */
|
||||
if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) {
|
||||
setverdict(fail, "Second data payload is not a dummy frame: ",
|
||||
data_block.blocks[1].payload);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* TODO: check exp_cs */
|
||||
}
|
||||
|
||||
/* This function does what could probably be done with templates */
|
||||
function f_rlcmac_dl_block_verify_data_egprs(in RlcmacDlEgprsDataBlock data_block,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint14_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
if (not match(data_block.mac_hdr.bsn1, exp_bsn)) {
|
||||
setverdict(fail, "DL block BSN doesn't match: ",
|
||||
data_block.mac_hdr.bsn1, " vs exp ", exp_bsn);
|
||||
}
|
||||
|
||||
if (lengthof(data_block.blocks) < 1) {
|
||||
setverdict(fail, "DL block has no LLC payload: ", data_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (not match(data_block.blocks[0].payload, data)) {
|
||||
setverdict(fail, "Failed to match content of LLC payload in DL Block: ",
|
||||
data_block.blocks[0].payload, " vs ", data);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* Check next data blocks contain dummy frames */
|
||||
if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) {
|
||||
setverdict(fail, "Second data payload is not a dummy frame: ",
|
||||
data_block.blocks[1].payload);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* TODO: Check exp_cs. In the case of EGPRS, first check mac_hdr.header_type and then decode CPS = exp_cs based on mac_hdr.header_type.
|
||||
See wireshark's egprs_Header_type1_coding_puncturing_scheme_to_mcs. */
|
||||
}
|
||||
|
||||
/* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */
|
||||
function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint7_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
/* FIXME: ideally we should use an alt statement with timeout here, rather than
|
||||
* having +100500 layers of abstraction. This would facilitate developing the
|
||||
* multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received
|
||||
* block is exactly what you need. */
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
|
||||
/* Make sure it's either GPRS or EGPRS data block */
|
||||
if (not match(dl_block, tr_RLCMAC_DATA)) {
|
||||
setverdict(fail, "Failed to match DL DATA: ", dl_block, " vs ", tr_RLCMAC_DATA);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (ischosen(dl_block.data_egprs)) {
|
||||
f_rlcmac_dl_block_verify_data_egprs(dl_block.data_egprs, data, exp_bsn, exp_cs);
|
||||
} else if (ischosen(dl_block.data)) {
|
||||
f_rlcmac_dl_block_verify_data_gprs(dl_block.data, data, exp_bsn, exp_cs);
|
||||
} else {
|
||||
/* Should not happen, but the caller may theoretically give us a template for CTRL */
|
||||
setverdict(fail, "DL block is neither GPRS nor EGPRS data block: ", dl_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
function f_dl_block_ack_fn(in RlcmacDlBlock dl_block, uint32_t dl_fn)
|
||||
runs on MS_BTS_IFACE_CT return uint32_t {
|
||||
var boolean rrbp_valid;
|
||||
var MacRrbp rrbp;
|
||||
|
||||
/* The argument must be either a GPRS or EGPRS data block */
|
||||
if (ischosen(dl_block.data_egprs)) {
|
||||
rrbp_valid := true; /* always valid */
|
||||
rrbp := dl_block.data_egprs.mac_hdr.rrbp;
|
||||
} else if (ischosen(dl_block.data)) {
|
||||
rrbp_valid := dl_block.data.mac_hdr.mac_hdr.rrbp_valid;
|
||||
rrbp := dl_block.data.mac_hdr.mac_hdr.rrbp;
|
||||
} else {
|
||||
rrbp_valid := dl_block.ctrl.mac_hdr.rrbp_valid;
|
||||
rrbp := dl_block.ctrl.mac_hdr.rrbp;
|
||||
}
|
||||
|
||||
/* Make sure that the given block really needs to be ACKnowledged */
|
||||
if (not rrbp_valid) {
|
||||
setverdict(fail, "DL block shall not be ACKnowledged, field RRBP is not valid");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
return f_rrbp_ack_fn(dl_fn, rrbp);
|
||||
}
|
||||
|
||||
function f_pkt_paging_match_tmsi(in PacketPagingReq req, template GsmTmsi tmsi)
|
||||
runs on MS_BTS_IFACE_CT {
|
||||
if (not match(req.repeated_pageinfo.cs.tmsi, tmsi)) {
|
||||
setverdict(fail, "Mobile Identity (TMSI/P-TMSI) mismatch: ",
|
||||
"expected: ", tmsi, "got: ", req.repeated_pageinfo.cs.tmsi);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
|
@ -49,6 +49,7 @@ import from PCUIF_Components all;
|
|||
import from IPL4asp_Types all;
|
||||
import from Native_Functions all;
|
||||
import from SGSN_Components all;
|
||||
import from GPRS_Components all;
|
||||
|
||||
modulepar {
|
||||
charstring mp_pcu_sock_path := PCU_SOCK_DEFAULT;
|
||||
|
@ -100,14 +101,10 @@ type record lqual_range {
|
|||
uint8_t high
|
||||
}
|
||||
|
||||
type component RAW_PCU_Test_CT extends bssgp_CT {
|
||||
type component RAW_PCU_Test_CT extends bssgp_CT, MS_BTS_IFACE_CT {
|
||||
/* PCU interface abstraction component */
|
||||
var RAW_PCUIF_CT vc_PCUIF;
|
||||
/* Virtual BTS component */
|
||||
var RAW_PCU_BTS_CT vc_BTS;
|
||||
|
||||
/* Connection to the BTS component (one for now) */
|
||||
port RAW_PCU_MSG_PT BTS;
|
||||
/* Connection to the PCUIF component */
|
||||
port RAW_PCU_MSG_PT PCUIF;
|
||||
/* VTY connection to the PCU */
|
||||
|
@ -136,9 +133,6 @@ type component RAW_PCU_Test_CT extends bssgp_CT {
|
|||
var uint8_t g_mcs_max_dl := 9;
|
||||
var uint8_t g_mcs_max_ul := 9;
|
||||
|
||||
/* Value at which Countdown Procedure starts. Announced by network (GPRS Cell Options as per TS 04.60 Chapter 12.24) */
|
||||
var uint4_t g_bs_cv_max := 4;
|
||||
|
||||
var boolean g_egprs_only := false;
|
||||
var boolean g_force_two_phase_access := false;
|
||||
|
||||
|
@ -227,560 +221,6 @@ runs on RAW_PCU_Test_CT {
|
|||
BTS.receive(tr_RAW_PCU_EV(BTS_EV_SI13_NEGO));
|
||||
}
|
||||
|
||||
private function f_shutdown(charstring file, integer line,
|
||||
boolean final := false)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
/* Determine if the test case was aborted in the middle */
|
||||
if (not final) {
|
||||
log("Test case ", testcasename(), " aborted at ", file, ":", line);
|
||||
} else {
|
||||
/* Guard verdict to avoid 'none' */
|
||||
setverdict(pass);
|
||||
}
|
||||
|
||||
/* Properly shutdown virtual BTS and its clock generator */
|
||||
BTS.send(ts_RAW_PCU_CMD(GENERAL_CMD_SHUTDOWN));
|
||||
vc_BTS.done; /* wait untill it's done */
|
||||
|
||||
/* Shutdown the others and MTC */
|
||||
all component.stop;
|
||||
mtc.stop;
|
||||
}
|
||||
|
||||
template AckNackDescription t_AckNackDescription_init := {
|
||||
final_ack := '0'B,
|
||||
starting_seq_nr := 0,
|
||||
receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000000'B
|
||||
}
|
||||
|
||||
private function f_rlcmac_dl_block_get_tfi(RlcmacDlBlock dl_block)
|
||||
runs on RAW_PCU_Test_CT return uint5_t {
|
||||
if (ischosen(dl_block.data)) {
|
||||
return dl_block.data.mac_hdr.hdr_ext.tfi;
|
||||
} else if (ischosen(dl_block.data_egprs)) {
|
||||
return dl_block.data_egprs.mac_hdr.tfi;
|
||||
} else { /* Ctrl block */
|
||||
if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(tr_DynamicAllocation(?))))) {
|
||||
return dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ul_tfi_assignment;
|
||||
}
|
||||
if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(tr_DynamicAllocation(?))))) {
|
||||
return dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ul_tfi_assignment;
|
||||
}
|
||||
}
|
||||
setverdict(fail, "DlBlock doesn't contain a TFI:", dl_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
return 0; /* make compiler happy */
|
||||
}
|
||||
|
||||
/* Get the Chan coding command from a dl block containing PACCH UL Assignment */
|
||||
private function f_rlcmac_dl_block_get_assigned_ul_cs_mcs(RlcmacDlBlock dl_block)
|
||||
runs on RAW_PCU_Test_CT return CodingScheme {
|
||||
if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(?)))) {
|
||||
return f_rlcmac_block_ChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.gprs.ch_coding_cmd);
|
||||
}
|
||||
if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(?)))) {
|
||||
return f_rlcmac_block_EgprsChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.egprs.chan_coding_cmd);
|
||||
}
|
||||
setverdict(fail, "DlBlock doesn't contain CS_MCS information:", dl_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
return CS_1; /* make compiler happy */
|
||||
}
|
||||
|
||||
/* TS 44.060 sec 12.3 Ack/Nack Description */
|
||||
private function f_acknackdesc_ack_block(inout AckNackDescription desc, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B)
|
||||
{
|
||||
var uint7_t bsn;
|
||||
var integer i;
|
||||
var integer inc;
|
||||
|
||||
if (ischosen(dl_block.data)) {
|
||||
bsn := dl_block.data.mac_hdr.hdr_ext.bsn;
|
||||
} else {
|
||||
bsn := dl_block.data_egprs.mac_hdr.bsn1;
|
||||
}
|
||||
|
||||
inc := bsn - desc.starting_seq_nr + 1;
|
||||
/* Filling hole? */
|
||||
if (bsn < desc.starting_seq_nr) {
|
||||
desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - (desc.starting_seq_nr - bsn)] := int2bit(1, 1);
|
||||
return;
|
||||
}
|
||||
|
||||
/* SSN is increased, and so RBB values need to be moved */
|
||||
for (i := 0; i < lengthof(desc.receive_block_bitmap) - inc; i := i+1) {
|
||||
desc.receive_block_bitmap[i] := desc.receive_block_bitmap[i + inc];
|
||||
}
|
||||
for (i := lengthof(desc.receive_block_bitmap) - inc; i < lengthof(desc.receive_block_bitmap) - 1; i := i+1) {
|
||||
desc.receive_block_bitmap[i] := int2bit(0, 1);
|
||||
}
|
||||
/* Now we can set current bit and update SSN */
|
||||
desc.starting_seq_nr := bsn + 1;
|
||||
desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - 1] := int2bit(1, 1);
|
||||
|
||||
/* Finally update the final_ack bit as requested: */
|
||||
desc.final_ack := final_ack;
|
||||
}
|
||||
|
||||
/* This function can be used to send DATA.cnf in response to the IUT originated DATA.req.
|
||||
* NOTE: it's the responsibility of caller to make sure that pcu_msg contains u.data_req. */
|
||||
private function f_pcuif_tx_data_cnf(in PCUIF_Message pcu_msg)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var PCUIF_Message pcu_msg_cnf := {
|
||||
msg_type := PCU_IF_MSG_DATA_CNF,
|
||||
bts_nr := pcu_msg.bts_nr,
|
||||
spare := pcu_msg.spare,
|
||||
u := { data_cnf := pcu_msg.u.data_req }
|
||||
};
|
||||
|
||||
/* PCU wants DATA.cnf containing basically everything that was in DATA.req,
|
||||
* but PCU_IF_SAPI_PCH is a special case - paging group shall be excluded. */
|
||||
if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) {
|
||||
pcu_msg_cnf.u.data_cnf.data := substr(pcu_msg.u.data_req.data, 3,
|
||||
pcu_msg.u.data_req.len - 3);
|
||||
}
|
||||
|
||||
BTS.send(pcu_msg_cnf);
|
||||
}
|
||||
|
||||
private function f_pcuif_rx_imm_ass(out GsmRrMessage rr_imm_ass,
|
||||
template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH,
|
||||
template GsmRrMessage t_imm_ass := ?,
|
||||
uint8_t bts_nr := 0)
|
||||
runs on RAW_PCU_Test_CT return boolean {
|
||||
var PCUIF_Message pcu_msg;
|
||||
var octetstring data;
|
||||
timer T;
|
||||
|
||||
T.start(2.0);
|
||||
alt {
|
||||
[] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0,
|
||||
sapi := sapi, data := ?)) -> value pcu_msg {
|
||||
/* On PCH the payload is prefixed with paging group (3 octets): skip it.
|
||||
* TODO: add an additional template parameter, so we can match it. */
|
||||
if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) {
|
||||
data := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
|
||||
} else {
|
||||
data := pcu_msg.u.data_req.data;
|
||||
}
|
||||
|
||||
rr_imm_ass := dec_GsmRrMessage(data);
|
||||
if (not match(rr_imm_ass, t_imm_ass)) {
|
||||
/* Not for us? Wait for more. */
|
||||
repeat;
|
||||
}
|
||||
|
||||
log("Rx Immediate Assignment: ", rr_imm_ass);
|
||||
setverdict(pass);
|
||||
return true;
|
||||
}
|
||||
[] BTS.receive { repeat; }
|
||||
[] T.timeout {
|
||||
setverdict(fail, "Timeout waiting for Immediate Assignment");
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/* One phase packet access (see 3GPP TS 44.018, table 9.1.8.1) */
|
||||
private const BIT8 chan_req_def := '01111000'B;
|
||||
|
||||
/* Establish an Uplink TBF by sending RACH.ind towards the PCU */
|
||||
private function f_establish_tbf(out GsmRrMessage rr_imm_ass, uint8_t bts_nr := 0,
|
||||
uint16_t ra := bit2int(chan_req_def),
|
||||
uint8_t is_11bit := 0,
|
||||
PCUIF_BurstType burst_type := BURST_TYPE_0,
|
||||
TimingAdvance ta := 0)
|
||||
runs on RAW_PCU_Test_CT return boolean {
|
||||
var uint32_t fn;
|
||||
|
||||
/* FIXME: ask the BTS component to give us the current TDMA fn */
|
||||
fn := 1337 + ta;
|
||||
|
||||
/* Send RACH.ind */
|
||||
log("Sending RACH.ind on fn=", fn, " with RA=", ra, ", TA=", ta);
|
||||
BTS.send(ts_PCUIF_RACH_IND(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0,
|
||||
ra := ra, is_11bit := is_11bit,
|
||||
burst_type := burst_type,
|
||||
fn := fn, arfcn := 871,
|
||||
qta := ta * 4));
|
||||
|
||||
/* 3GPP TS 44.018, table 9.1.8.1, note 2b: Request Reference shall be set to 127
|
||||
* when Immediate Assignment is triggered by EGPRS Packet Channel Request. Here
|
||||
* we assume that 11 bit RA always contains EGPRS Packet Channel Request. */
|
||||
if (is_11bit != 0) { ra := 127; }
|
||||
|
||||
/* Expect Immediate (TBF) Assignment on TS0/AGCH */
|
||||
return f_pcuif_rx_imm_ass(rr_imm_ass, PCU_IF_SAPI_AGCH,
|
||||
tr_IMM_TBF_ASS(false, ra, fn),
|
||||
bts_nr := bts_nr);
|
||||
}
|
||||
|
||||
private function f_imm_ass_verify_ul_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketUlAssign ul_tbf_ass, template PacketUlAssign ul_ass := tr_PacketUlDynAssign)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
|
||||
/* Make sure we received an UL TBF Assignment */
|
||||
if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(ul_ass)))) {
|
||||
ul_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul;
|
||||
log("Rx Uplink TBF assignment: ", ul_tbf_ass);
|
||||
setverdict(pass);
|
||||
} else {
|
||||
setverdict(fail, "Failed to match UL TBF Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
private function f_imm_ass_verify_dl_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketDlAssign dl_tbf_ass)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
|
||||
/* Make sure we received a DL TBF Assignment */
|
||||
if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := true, rest := tr_IaRestOctets_DLAss(?)))) {
|
||||
dl_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl;
|
||||
log("Rx Downlink TBF assignment: ", dl_tbf_ass);
|
||||
setverdict(pass);
|
||||
} else {
|
||||
setverdict(fail, "Failed to match DL TBF Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
|
||||
function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0, uint32_t fn := 0)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var template RAW_PCU_EventParam ev_param := {tdma_fn := ? };
|
||||
BTS.send(ts_PCUIF_DATA_IND(bts_nr := 0, trx_nr := 0, ts_nr := 7, block_nr := 0,
|
||||
sapi := PCU_IF_SAPI_PDTCH, data := data,
|
||||
fn := fn, arfcn := 871, lqual_cb := lqual_cb));
|
||||
if (fn != 0) {
|
||||
ev_param := {tdma_fn := fn };
|
||||
}
|
||||
BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_SENT, ev_param));
|
||||
}
|
||||
|
||||
/* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */
|
||||
private function f_pcuif_rx_data_req(out PCUIF_Message pcu_msg)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7,
|
||||
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
|
||||
arfcn := 871, block_nr := 0));
|
||||
BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7,
|
||||
sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg;
|
||||
}
|
||||
|
||||
/* Expect an Immediate Assignment (paging) from PCU on PCUIF on specified sapi. */
|
||||
private function f_pcuif_rx_pch_imm_tbf_ass(out GsmRrMessage rr_imm_ass)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var PCUIF_Message pcu_msg;
|
||||
var octetstring macblock;
|
||||
BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
|
||||
sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
|
||||
/* First 3 bytes contain paging group: */
|
||||
macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
|
||||
rr_imm_ass := dec_GsmRrMessage(macblock);
|
||||
if (not match(rr_imm_ass, tr_IMM_TBF_ASS())) {
|
||||
setverdict(fail, "Failed to match Immediate Assignment: ", rr_imm_ass);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
f_pcuif_tx_data_cnf(pcu_msg);
|
||||
}
|
||||
|
||||
/* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */
|
||||
private function f_pcuif_rx_pch_pag_req1(template MobileIdentityV mi1 := ?,
|
||||
template integer pag_group := ?)
|
||||
runs on RAW_PCU_Test_CT return GsmRrMessage {
|
||||
var GsmRrMessage rr_pag_req1;
|
||||
var PCUIF_Message pcu_msg;
|
||||
var octetstring imsi_suff_octstr;
|
||||
var integer pag_group_rx;
|
||||
var octetstring macblock;
|
||||
|
||||
BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
|
||||
sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
|
||||
|
||||
/* First 3 bytes contain IMSI suffix to calculate paging group: */
|
||||
imsi_suff_octstr := substr(pcu_msg.u.data_req.data, 0, 3);
|
||||
pag_group_rx := str2int(oct2char(imsi_suff_octstr[0])) * 100 +
|
||||
str2int(oct2char(imsi_suff_octstr[1])) * 10 +
|
||||
str2int(oct2char(imsi_suff_octstr[2]));
|
||||
|
||||
/* Make sure we've got RR Paging Request Type 1 for a given MI */
|
||||
macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
|
||||
rr_pag_req1 := dec_GsmRrMessage(macblock);
|
||||
if (not match(rr_pag_req1, tr_PAG_REQ1(tr_MI_LV(mi1)))) {
|
||||
setverdict(fail, "Failed to match Paging Request Type 1: ", rr_pag_req1);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* Make sure that received paging froup matches the expected one */
|
||||
if (not match(pag_group_rx, pag_group)) {
|
||||
setverdict(fail, "Paging group", pag_group_rx, " does not match expected ", pag_group);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
f_pcuif_tx_data_cnf(pcu_msg);
|
||||
return rr_pag_req1;
|
||||
}
|
||||
|
||||
/* Send one rlcmac UL block adding necessary extra padding at the end.
|
||||
* returns length of extra padding added at the end, in octets.
|
||||
* FIXME: Only supports CS-1 so far.
|
||||
*/
|
||||
private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0, uint32_t fn := 0)
|
||||
runs on RAW_PCU_Test_CT return integer {
|
||||
var octetstring data;
|
||||
var integer padding_len;
|
||||
/* Encode the payload of DATA.ind */
|
||||
data := enc_RlcmacUlBlock(valueof(ul_data));
|
||||
padding_len := 23 - lengthof(data);
|
||||
data := f_pad_oct(data, 23, '00'O); /* CS-1 */
|
||||
|
||||
/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
|
||||
f_pcuif_tx_data_ind(data, lqual_cb, fn);
|
||||
return padding_len;
|
||||
}
|
||||
|
||||
private function f_tx_rlcmac_ul_n_blocks(uint5_t tfi, inout uint14_t bsn, integer num_blocks := 1, template (omit) GprsTlli tlli := omit)
|
||||
runs on RAW_PCU_Test_CT return octetstring {
|
||||
var octetstring total_payload := ''O;
|
||||
var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA(
|
||||
tfi := tfi,
|
||||
cv := 15, /* num UL blocks to be sent (to be overridden in loop) */
|
||||
bsn := 0, /* To be generated in loop */
|
||||
blocks := { /* To be generated in loop */ });
|
||||
|
||||
if (not istemplatekind(tlli, "omit")) {
|
||||
ul_data.data.mac_hdr.tlli_ind := true;
|
||||
ul_data.data.tlli := tlli;
|
||||
}
|
||||
|
||||
for (var integer i := 0; i < num_blocks; i := i + 1) {
|
||||
var integer padding_len;
|
||||
var octetstring payload := f_rnd_octstring(10);
|
||||
/* Prepare a new UL block (CV, random payload) */
|
||||
var integer cv := num_blocks - i - 1;
|
||||
if (cv > g_bs_cv_max) {
|
||||
cv := 15;
|
||||
}
|
||||
ul_data.data.mac_hdr.countdown := cv;
|
||||
ul_data.data.mac_hdr.bsn := bsn + i;
|
||||
ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(payload)) };
|
||||
padding_len := f_tx_rlcmac_ul_block(ul_data);
|
||||
total_payload := total_payload & payload & f_pad_oct(''O, padding_len, '00'O);
|
||||
}
|
||||
bsn := valueof(ul_data.data.mac_hdr.bsn) + 1; /* update bsn to point to next one */
|
||||
return total_payload;
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block(out RlcmacDlBlock dl_block, out uint32_t dl_fn, template (present) CodingScheme exp_cs_mcs := ?)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var PCUIF_Message pcu_msg;
|
||||
f_pcuif_rx_data_req(pcu_msg);
|
||||
dl_block := dec_RlcmacDlBlock(pcu_msg.u.data_req.data);
|
||||
dl_fn := pcu_msg.u.data_req.fn;
|
||||
|
||||
var integer len := lengthof(pcu_msg.u.data_req.data);
|
||||
var CodingScheme cs_mcs := f_rlcmac_block_len2cs_mcs(len)
|
||||
if (not match(f_rlcmac_block_len2cs_mcs(len), exp_cs_mcs)) {
|
||||
setverdict(fail, "Failed to match Coding Scheme exp ", exp_cs_mcs, " vs ", cs_mcs, " (", len, ")");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_ack_nack(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK(ul_tfi := ?, tlli := ?))) {
|
||||
setverdict(fail, "Failed to match Packet Uplink ACK / NACK");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DUMMY_CTRL())) {
|
||||
setverdict(fail, "Failed to match Packet DUMMY DL");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_pkt_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Downlink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_pkt_ul_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_UL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Uplink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_pkt_dl_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) {
|
||||
setverdict(fail, "Failed to match Packet Downlink Assignment");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
|
||||
}
|
||||
|
||||
|
||||
private function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
var uint32_t dl_fn;
|
||||
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ())) {
|
||||
setverdict(fail, "Failed to match Packet Paging Request: ", dl_block, " vs ", tr_RLCMAC_PACKET_PAG_REQ());
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
/* This function does what could probably be done with templates */
|
||||
private function f_rlcmac_dl_block_verify_data_gprs(in RlcmacDlDataBlock data_block,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint7_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
if (not match(data_block.mac_hdr.hdr_ext.bsn, exp_bsn)) {
|
||||
setverdict(fail, "DL block BSN doesn't match: ",
|
||||
data_block.mac_hdr.hdr_ext.bsn, " vs exp ", exp_bsn);
|
||||
}
|
||||
|
||||
if (lengthof(data_block.blocks) < 1) {
|
||||
setverdict(fail, "DL block has no LLC payload: ", data_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (not match(data_block.blocks[0].payload, data)) {
|
||||
setverdict(fail, "Failed to match content of LLC payload in DL Block: ",
|
||||
data_block.blocks[0].payload, " vs ", data);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* Check next data blocks contain dummy frames */
|
||||
if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) {
|
||||
setverdict(fail, "Second data payload is not a dummy frame: ",
|
||||
data_block.blocks[1].payload);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* TODO: check exp_cs */
|
||||
}
|
||||
|
||||
/* This function does what could probably be done with templates */
|
||||
private function f_rlcmac_dl_block_verify_data_egprs(in RlcmacDlEgprsDataBlock data_block,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint14_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
if (not match(data_block.mac_hdr.bsn1, exp_bsn)) {
|
||||
setverdict(fail, "DL block BSN doesn't match: ",
|
||||
data_block.mac_hdr.bsn1, " vs exp ", exp_bsn);
|
||||
}
|
||||
|
||||
if (lengthof(data_block.blocks) < 1) {
|
||||
setverdict(fail, "DL block has no LLC payload: ", data_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (not match(data_block.blocks[0].payload, data)) {
|
||||
setverdict(fail, "Failed to match content of LLC payload in DL Block: ",
|
||||
data_block.blocks[0].payload, " vs ", data);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* Check next data blocks contain dummy frames */
|
||||
if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) {
|
||||
setverdict(fail, "Second data payload is not a dummy frame: ",
|
||||
data_block.blocks[1].payload);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
/* TODO: Check exp_cs. In the case of EGPRS, first check mac_hdr.header_type and then decode CPS = exp_cs based on mac_hdr.header_type.
|
||||
See wireshark's egprs_Header_type1_coding_puncturing_scheme_to_mcs. */
|
||||
}
|
||||
|
||||
/* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */
|
||||
private function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn,
|
||||
template (present) octetstring data := ?,
|
||||
template (present) uint7_t exp_bsn := ?,
|
||||
template (present) CodingScheme exp_cs := ?)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
/* FIXME: ideally we should use an alt statement with timeout here, rather than
|
||||
* having +100500 layers of abstraction. This would facilitate developing the
|
||||
* multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received
|
||||
* block is exactly what you need. */
|
||||
f_rx_rlcmac_dl_block(dl_block, dl_fn);
|
||||
|
||||
/* Make sure it's either GPRS or EGPRS data block */
|
||||
if (not match(dl_block, tr_RLCMAC_DATA)) {
|
||||
setverdict(fail, "Failed to match DL DATA: ", dl_block, " vs ", tr_RLCMAC_DATA);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
if (ischosen(dl_block.data_egprs)) {
|
||||
f_rlcmac_dl_block_verify_data_egprs(dl_block.data_egprs, data, exp_bsn, exp_cs);
|
||||
} else if (ischosen(dl_block.data)) {
|
||||
f_rlcmac_dl_block_verify_data_gprs(dl_block.data, data, exp_bsn, exp_cs);
|
||||
} else {
|
||||
/* Should not happen, but the caller may theoretically give us a template for CTRL */
|
||||
setverdict(fail, "DL block is neither GPRS nor EGPRS data block: ", dl_block);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
private function f_dl_block_ack_fn(in RlcmacDlBlock dl_block, uint32_t dl_fn)
|
||||
runs on RAW_PCU_Test_CT return uint32_t {
|
||||
var boolean rrbp_valid;
|
||||
var MacRrbp rrbp;
|
||||
|
||||
/* The argument must be either a GPRS or EGPRS data block */
|
||||
if (ischosen(dl_block.data_egprs)) {
|
||||
rrbp_valid := true; /* always valid */
|
||||
rrbp := dl_block.data_egprs.mac_hdr.rrbp;
|
||||
} else if (ischosen(dl_block.data)) {
|
||||
rrbp_valid := dl_block.data.mac_hdr.mac_hdr.rrbp_valid;
|
||||
rrbp := dl_block.data.mac_hdr.mac_hdr.rrbp;
|
||||
} else {
|
||||
rrbp_valid := dl_block.ctrl.mac_hdr.rrbp_valid;
|
||||
rrbp := dl_block.ctrl.mac_hdr.rrbp;
|
||||
}
|
||||
|
||||
/* Make sure that the given block really needs to be ACKnowledged */
|
||||
if (not rrbp_valid) {
|
||||
setverdict(fail, "DL block shall not be ACKnowledged, field RRBP is not valid");
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
|
||||
return f_rrbp_ack_fn(dl_fn, rrbp);
|
||||
}
|
||||
|
||||
testcase TC_pcuif_suspend() runs on RAW_PCU_Test_CT {
|
||||
var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.cell_id.ra_id);
|
||||
var GprsTlli tlli := 'FFFFFFFF'O;
|
||||
|
@ -2038,15 +1478,6 @@ runs on RAW_PCU_Test_CT {
|
|||
}
|
||||
}
|
||||
|
||||
private function f_pkt_paging_match_tmsi(in PacketPagingReq req, template GsmTmsi tmsi)
|
||||
runs on RAW_PCU_Test_CT {
|
||||
if (not match(req.repeated_pageinfo.cs.tmsi, tmsi)) {
|
||||
setverdict(fail, "Mobile Identity (TMSI/P-TMSI) mismatch: ",
|
||||
"expected: ", tmsi, "got: ", req.repeated_pageinfo.cs.tmsi);
|
||||
f_shutdown(__BFILE__, __LINE__);
|
||||
}
|
||||
}
|
||||
|
||||
/* Test CS paging over the BTS<->PCU socket.
|
||||
* When a (class B or C, not A) MS has an active TBF (or is on the PDCH), the MS can not react on CS paging over CCCH.
|
||||
* Paging should be send on the PACCH.
|
||||
|
|
|
@ -25,6 +25,7 @@ import from GSM_RR_Types all;
|
|||
import from RLCMAC_CSN1_Types all;
|
||||
import from RLCMAC_Types all;
|
||||
import from RLCMAC_Templates all;
|
||||
import from GPRS_Components all;
|
||||
import from PCU_Tests all;
|
||||
|
||||
type component dummy_CT extends BSSGP_Client_CT {
|
||||
|
|
Loading…
Reference in New Issue