Hi,
I have issues configuring PSM together with RAI on my nRF9151-DK. I am trying to send UDP packet, wait for response and go to sleep for several minutes trying to consume as little power as possible.
The problem is that RAI seems to have no effect, the modem always enters the sleep in the same time (10 - 15 seconds) after I receieve packet whenever I enable or disable RAI.
int modem_send(void* buffer, size_t length)
{
int err;
int sock;
int rai;
struct sockaddr_storage host_addr;
char recv_buf[64];
struct sockaddr_in *server4 = ((struct sockaddr_in *)&host_addr);
LOG_INF("Sending data to %s:%d, size %d", CONFIG_APP_SERVER_HOSTNAME, CONFIG_APP_SERVER_PORT, length);
server4->sin_family = AF_INET;
server4->sin_port = htons(CONFIG_APP_SERVER_PORT);
inet_pton(AF_INET, CONFIG_APP_SERVER_HOSTNAME, &server4->sin_addr);
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (sock < 0)
{
LOG_ERR("Failed to create UDP socket, error: %d", errno);
return -errno;
}
struct timeval tv = {.tv_sec = 10, .tv_usec = 0};
err = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
if (err)
{
LOG_ERR("Failed to set socket option SO_RCVTIMEO, error: %d", errno);
close(sock);
return err;
}
err = connect(sock, (struct sockaddr *)&host_addr, sizeof(struct sockaddr_in));
if (err < 0)
{
LOG_ERR("Failed to connect socket, error: %d", errno);
close(sock);
return err;
}
rai = RAI_ONE_RESP;
err = setsockopt(sock, SOL_SOCKET, SO_RAI, &rai, sizeof(rai));
if (err) {
LOG_ERR("Failed to set NRF_SO_RAI option, error: %d", err);
}
err = send(sock, buffer, length, 0);
if (err < 0)
{
LOG_ERR("Failed to transmit UDP packet, error: %d", errno);
close(sock);
return err;
}
LOG_INF("Waiting for response");
err = recv(sock, recv_buf, sizeof(recv_buf) - 1, 0);
if (err <= 0)
{
LOG_ERR("Failed to receive UDP packet, error: %d\n", errno);
close(sock);
return err;
}
recv_buf[err] = 0;
LOG_INF("Received: %d bytes", err);
close(sock);
return 0;
}
# Networking CONFIG_NETWORKING=y CONFIG_NET_NATIVE=n CONFIG_NET_SOCKETS=y CONFIG_NET_SOCKETS_OFFLOAD=y CONFIG_POSIX_API=y # Modem library CONFIG_NRF_MODEM_LIB=y # LTE link control CONFIG_LTE_LINK_CONTROL=y CONFIG_LTE_LC_MODEM_SLEEP_MODULE=y CONFIG_LTE_LC_MODEM_SLEEP_NOTIFICATIONS=y CONFIG_LTE_LC_RAI_MODULE=y # Configure PSM CONFIG_LTE_LC_PSM_MODULE=y CONFIG_LTE_PSM_REQ=y CONFIG_LTE_PROPRIETARY_PSM_REQ=y CONFIG_LTE_PSM_REQ_RPTAU="00101000" CONFIG_LTE_PSM_REQ_RAT="00000001" CONFIG_LTE_LC_RAI_MODULE=y CONFIG_LTE_RAI_REQ=y # Logging CONFIG_SERIAL=y CONFIG_LOG=y
*** Booting nRF Connect SDK v3.0.2-89ba1294ac9b *** *** Using Zephyr OS v4.0.99-f791c49f492c *** [00:00:00.288,421] <inf> main: Starting application [00:00:00.288,421] <inf> modem: Initializing modem library [00:00:00.623,992] <inf> modem: Modem library initialized [00:01:24.868,560] <inf> main: Executing work handler [00:01:24.868,835] <inf> modem: Connecting to network [00:01:24.868,835] <inf> modem: Allready connected to network [00:01:24.899,902] <inf> modem: Sending data to xx.xx.xx.xx:xx, size 38 [00:01:24.939,727] <inf> modem: Waiting for response [00:01:24.940,032] <inf> modem: Woken up from sleep mode [00:01:25.465,484] <inf> modem: RRC mode: Connected [00:01:25.678,039] <inf> modem: Received: 5 bytes [00:01:25.678,283] <inf> main: Work handler finished, scheduling next run in 120 seconds [00:01:35.969,879] <inf> modem: RRC mode: Idle [00:01:40.994,903] <inf> modem: Entering proprietary sleep mode
