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Forward ETWS Primary Notification to MS

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Receive an Application Information Request from the BTS via PCU
interface. Construct a Packet Application Information message from it
(3GPP TS 44.060 11.2.47) and send it to all MS with active TBF.

The TTCN-3 test infrastructure to test this feature is not quite ready
yet, so I've added C unit tests instead.

Related: OS#4048
Change-Id: Ie35959f833f46bde5f2126314b6f96763f863b36
This commit is contained in:
Oliver Smith
2019-09-05 17:13:33 +02:00
committed by laforge
parent 5360ef5447
commit cfb6321b88
15 changed files with 407 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/osmocom/pcu/pcuif_proto.h
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@@ -13,6 +13,7 @@
#define PCU_IF_MSG_DATA_CNF 0x01 /* confirm (e.g. transmission on PCH) */
#define PCU_IF_MSG_DATA_IND 0x02 /* receive data from given channel */
#define PCU_IF_MSG_SUSP_REQ 0x03 /* BTS forwards GPRS SUSP REQ to PCU */
#define PCU_IF_MSG_APP_INFO_REQ 0x04 /* BTS asks PCU to transmit APP INFO via PACCH */
#define PCU_IF_MSG_RTS_REQ 0x10 /* ready to send request */
#define PCU_IF_MSG_DATA_CNF_DT 0x11 /* confirm (with direct tlli) */
#define PCU_IF_MSG_RACH_IND 0x22 /* receive RACH */
@@ -172,6 +173,13 @@ struct gsm_pcu_if_pag_req {
uint8_t identity_lv[9];
} __attribute__ ((packed));
/* BTS tells PCU to [once] send given application data via PACCH to all UE with active TBF */
struct gsm_pcu_if_app_info_req {
uint8_t application_type; /* 4bit field, see TS 44.060 11.2.47 */
uint8_t len; /* length of data */
uint8_t data[162]; /* random size choice; ETWS needs 56 bytes */
} __attribute__ ((packed));
/* BTS tells PCU about a GPRS SUSPENSION REQUEST received on DCCH */
struct gsm_pcu_if_susp_req {
uint32_t tlli;
@@ -198,6 +206,7 @@ struct gsm_pcu_if {
struct gsm_pcu_if_act_req act_req;
struct gsm_pcu_if_time_ind time_ind;
struct gsm_pcu_if_pag_req pag_req;
struct gsm_pcu_if_app_info_req app_info_req;
} u;
} __attribute__ ((packed));