diff options
Diffstat (limited to 'src/gprs_rlcmac.cpp')
| -rw-r--r-- | src/gprs_rlcmac.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/gprs_rlcmac.cpp b/src/gprs_rlcmac.cpp index 17120f9e..711fb61d 100644 --- a/src/gprs_rlcmac.cpp +++ b/src/gprs_rlcmac.cpp @@ -718,6 +718,35 @@ int write_immediate_assignment(bitvec * dest, uint8_t downlink, uint8_t ra, uint return wp/8; } +int write_paging_request(bitvec * dest, uint8_t *ptmsi, uint16_t ptmsi_len) +{ + unsigned wp = 0; + + bitvec_write_field(dest, wp,0x0,4); // Skip Indicator + bitvec_write_field(dest, wp,0x6,4); // Protocol Discriminator + bitvec_write_field(dest, wp,0x21,8); // Paging Request Message Type + + bitvec_write_field(dest, wp,0x0,4); // Page Mode + bitvec_write_field(dest, wp,0x0,4); // Channel Needed + + // Mobile Identity + bitvec_write_field(dest, wp,ptmsi_len+1,8); // Mobile Identity length + bitvec_write_field(dest, wp,0xf,4); // unused + bitvec_write_field(dest, wp,0x4,4); // PTMSI type + for (int i = 0; i < ptmsi_len; i++) + { + bitvec_write_field(dest, wp,ptmsi[i],8); // PTMSI + } + bitvec_write_field(dest, wp,0x0,1); // "L" NLN(PCH) = off + bitvec_write_field(dest, wp,0x0,1); // "L" Priority1 = off + bitvec_write_field(dest, wp,0x1,1); // "L" Priority2 = off + bitvec_write_field(dest, wp,0x0,1); // "L" Group Call information = off + bitvec_write_field(dest, wp,0x0,1); // "H" Packet Page Indication 1 = packet paging procedure + bitvec_write_field(dest, wp,0x1,1); // "H" Packet Page Indication 2 = packet paging procedure + bitvec_write_field(dest, wp,0x3,2); // spare padding + return wp/8; +} + void write_packet_uplink_ack(RlcMacDownlink_t * block, uint8_t tfi, uint32_t tlli, uint8_t fi, uint8_t bsn) { // Packet Uplink Ack/Nack TS 44.060 11.2.28 @@ -1158,3 +1187,12 @@ void gprs_rlcmac_packet_downlink_assignment(gprs_rlcmac_tbf *tbf) bitvec_free(packet_downlink_assignment_vec); } +void gprs_rlcmac_paging_request(uint8_t *ptmsi, uint16_t ptmsi_len) +{ + LOGP(DRLCMAC, LOGL_NOTICE, "TX: [PCU -> BTS] Paging Request (CCCH)\n"); + bitvec *paging_request = bitvec_alloc(23); + bitvec_unhex(paging_request, "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); + int len = write_paging_request(paging_request, ptmsi, ptmsi_len); + pcu_l1if_tx_pch(paging_request, len); + bitvec_free(paging_request); +} |