diff options
Diffstat (limited to 'src/bts.cpp')
| -rw-r--r-- | src/bts.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/bts.cpp b/src/bts.cpp index 0e451889..8bb0f26e 100644 --- a/src/bts.cpp +++ b/src/bts.cpp @@ -24,6 +24,7 @@ #include <encoding.h> #include <decoding.h> #include <rlc.h> +#include <pcu_l1_if.h> #include <gprs_rlcmac.h> #include <gprs_debug.h> @@ -330,6 +331,24 @@ int BTS::rcv_imm_ass_cnf(const uint8_t *data, uint32_t fn) return 0; } +void BTS::snd_dl_ass(gprs_rlcmac_tbf *tbf, uint8_t poll, const char *imsi) +{ + int plen; + + debug_diagram(this, tbf->diag, "IMM.ASS (PCH)"); + LOGP(DRLCMAC, LOGL_INFO, "TX: START TFI: %u TLLI: 0x%08x Immediate Assignment Downlink (PCH)\n", tbf->tfi, tbf->tlli); + bitvec *immediate_assignment = bitvec_alloc(22); /* without plen */ + bitvec_unhex(immediate_assignment, "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); + /* use request reference that has maximum distance to current time, + * so the assignment will not conflict with possible RACH requests. */ + plen = Encoding::write_immediate_assignment(&m_bts, immediate_assignment, 1, 125, + (tbf->pdch[tbf->first_ts]->last_rts_fn + 21216) % 2715648, tbf->ta, + tbf->arfcn, tbf->first_ts, tbf->tsc, tbf->tfi, 0, tbf->tlli, poll, + tbf->poll_fn, 0, m_bts.alpha, m_bts.gamma, -1); + pcu_l1if_tx_pch(immediate_assignment, plen, imsi); + bitvec_free(immediate_assignment); +} + /* * PDCH code below. TODO: move to a separate file |