Comments for Telecompedia https://telecompedia.net/ Easy Explanation, Mostly Visualization Thu, 11 Aug 2022 13:44:03 +0000 hourly 1 https://wordpress.org/?v=7.0.7 Comment on LTE UL Power Control by hsshah https://telecompedia.net/lte-ul-power-control/#comment-1585 Mon, 20 Jun 2022 06:47:12 +0000 https://telecompedia.net/?p=718#comment-1585 During Handover , when source cell send RRC reconfiguraton message it does not send Target cell RS powwer. Then how UE calculate path loss for deciding RACH preamble power ? Does it read SIB 2 after receiving HO Command ?

]]> Comment on EPS Mobility Management Timers – Network side by Brian https://telecompedia.net/eps-mobility-management-timers-network-side/#comment-1569 Mon, 06 Jun 2022 02:08:10 +0000 http://telecompedia.net/?page_id=458#comment-1569 Hello,
My ISP uses a LTE system for rural internet service. I’m often losing my connection for several mins. and the following is what is shown in the 4G/LTE router log.
Any suggestions at to the cause of the connection loss?

Thanks,
Brian

Jun 5 19:49:56 syslog: [3G_SERIAL]: EPS Not registered detected!
Jun 5 19:50:08 syslog: [3G_KEEPALIVE]: Issue Re-connect for network detach …
Jun 5 19:50:08 syslog: [3GFUN]: Stop Data Connection 2
Jun 5 19:50:10 syslog: [GB_Service]: StopDataConnection successfully mSessionID(d0634ef9) type 1
Jun 5 19:50:10 syslog: [3GFUN]: Stop Data Connection exit
Jun 5 19:50:10 syslog: [GB_Service]: WDSSessionStateCallback (1,0) (100117a0)
Jun 5 19:50:10 syslog: [GB_Service]: Call End Code (2): ClientEnd
Jun 5 19:50:10 syslog: [GB_Service]: Call Reason Type : CallManagerDefined
Jun 5 19:50:10 syslog: [GB_Service]: WDS Call End Reason(2000) : ClientEnd
Jun 5 19:50:10 syslog: [GB_Service]: OnSessionStateCBNotification (APN) handle(1050c150) mhGobi(1050c150)
Jun 5 19:50:10 syslog: [GB_Service]: OnSessionStateCBNotification:: Session state Disconnected
Jun 5 19:50:22 syslog: [3G_SERIAL]: Recovery Dialup …
Jun 5 19:50:34 syslog: [3G_SERIAL]: Network registering ….
Jun 5 19:51:02 syslog: [3G_SERIAL]: Network registered ….
Jun 5 19:51:04 syslog: [3GFUN] IP Pass-through
Jun 5 19:51:08 3G/4G: Data connection establishing …(ppp11/internet)
Jun 5 19:51:08 syslog: [GB_Service]: APN1 SetMuxID(81)(0)
Jun 5 19:51:09 syslog: APN(internet) profile index (1)
Jun 5 19:51:09 syslog: [GB_Service]: StartDataSession internet successfully mSessionID(d0634ef9) mhGobi(1050c150)
Jun 5 19:51:10 syslog: [GB_Service]: WDSSessionStateCallback (2,0) (100117a0)
Jun 5 19:51:10 syslog: [GB_Service]: OnSessionStateCBNotification (APN) handle(1050c150) mhGobi(1050c150)
Jun 5 19:51:10 syslog: [GB_Service]: OnSessionStateCBNotification:: Session state Connected
Jun 5 19:51:10 syslog: [GB_Service]: network MTU(1460)
Jun 5 19:51:10 syslog: [QMI]: Start Data session successfully
Jun 5 19:51:16 3G/4G: IPv4 addressing …(ppp11)
Jun 5 19:51:16 DHCP Client[30508]: DHCP Client (v0.9.9-pre) started
Jun 5 19:51:16 DHCP Client[30508]: Sending discover…
Jun 5 19:51:16 DHCP Client[30508]: Sending select for 69.10.175.63…
Jun 5 19:51:16 DHCP Client[30508]: Lease of 69.10.175.63 obtained, lease time -1 (ppp11 /1)
Jun 5 19:51:16 3G/4G: NDIS interface=ppp11
Jun 5 19:51:16 3G/4G: NDIS ppp11 Dial Success
Jun 5 19:51:21 syslog: [3GFUN]: Remove DHCP client …
Jun 5 19:51:22 syslog: [3GFUN]: DHCP server Set IP 69.10.175.63 GW 69.10.175.64 done
Jun 5 19:51:22 udhcpd[30888]: udhcpd (v0.9.9-pre) started
Jun 5 19:51:25 DNS[31372]: using nameserver 8.8.4.4#53(via ppp11)
Jun 5 19:51:25 DNS[31372]: using nameserver 8.8.8.8#53(via ppp11)
Jun 5 19:51:25 DNS[31372]: using nameserver 8.8.4.4#53(via ppp11)
Jun 5 19:51:25 DNS[31372]: using nameserver 8.8.8.8#53(via ppp11)
Jun 5 19:51:43 syslog: [3G_SERIAL]: EPS Not registered detected!
Jun 5 19:51:45 udhcpd[30892]: Re-init host(Lease number 1).
Jun 5 19:51:49 syslog: [3G_KEEPALIVE]: Issue Re-connect for network detach …
Jun 5 19:51:49 syslog: [3GFUN]: Stop Data Connection 2
Jun 5 19:51:49 syslog: [GB_Service]: StopDataConnection successfully mSessionID(d0634ef9) type 1
Jun 5 19:51:49 syslog: [GB_Service]: WDSSessionStateCallback (1,0) (100117a0)
Jun 5 19:51:49 syslog: [GB_Service]: Call End Code (2): ClientEnd
Jun 5 19:51:49 syslog: [GB_Service]: Call Reason Type : CallManagerDefined
Jun 5 19:51:49 syslog: [GB_Service]: WDS Call End Reason(2000) : ClientEnd
Jun 5 19:51:49 syslog: [GB_Service]: OnSessionStateCBNotification (APN) handle(1050c150) mhGobi(1050c150)
Jun 5 19:51:49 syslog: [GB_Service]: OnSessionStateCBNotification:: Session state Disconnected
Jun 5 19:51:51 syslog: [3GFUN]: Stop Data Connection exit
Jun 5 19:52:03 syslog: [3G_SERIAL]: Recovery Dialup …
Jun 5 19:52:15 syslog: [3G_SERIAL]: Network registering ….
Jun 5 19:52:39 syslog: [3G_SERIAL]: Network registered ….
Jun 5 19:52:42 syslog: [3GFUN] IP Pass-through
Jun 5 19:52:45 3G/4G: Data connection establishing …(ppp11/internet)
Jun 5 19:52:47 syslog: [GB_Service]: APN1 SetMuxID(81)(0)
Jun 5 19:52:48 syslog: APN(internet) profile index (1)
Jun 5 19:52:48 syslog: [GB_Service]: StartDataSession internet successfully mSessionID(d0634ef9) mhGobi(1050c150)
Jun 5 19:52:48 syslog: [GB_Service]: WDSSessionStateCallback (2,0) (100117a0)
Jun 5 19:52:48 syslog: [GB_Service]: OnSessionStateCBNotification (APN) handle(1050c150) mhGobi(1050c150)
Jun 5 19:52:48 syslog: [GB_Service]: OnSessionStateCBNotification:: Session state Connected
Jun 5 19:52:48 syslog: [GB_Service]: network MTU(1460)
Jun 5 19:52:48 syslog: [QMI]: Start Data session successfully
Jun 5 19:52:53 3G/4G: IPv4 addressing …(ppp11)
Jun 5 19:52:53 DHCP Client[32246]: DHCP Client (v0.9.9-pre) started
Jun 5 19:52:54 DHCP Client[32246]: Sending discover…
Jun 5 19:52:54 DHCP Client[32246]: Sending select for 69.10.175.63…
Jun 5 19:52:54 DHCP Client[32246]: Lease of 69.10.175.63 obtained, lease time -1 (ppp11 /1)
Jun 5 19:52:54 3G/4G: NDIS interface=ppp11
Jun 5 19:52:54 3G/4G: NDIS ppp11 Dial Success
Jun 5 19:52:59 syslog: [3GFUN]: Remove DHCP client …
Jun 5 19:53:00 syslog: [3GFUN]: DHCP server Set IP 69.10.175.63 GW 69.10.175.64 done
Jun 5 19:53:00 udhcpd[32701]: udhcpd (v0.9.9-pre) started
Jun 5 19:53:03 DNS[725]: using nameserver 8.8.4.4#53(via ppp11)
Jun 5 19:53:03 DNS[725]: using nameserver 8.8.8.8#53(via ppp11)
Jun 5 19:53:03 DNS[725]: using nameserver 8.8.4.4#53(via ppp11)
Jun 5 19:53:03 DNS[725]: using nameserver 8.8.8.8#53(via ppp11)
Jun 5 19:53:23 udhcpd[32707]: Re-init host(Lease number 1).

]]> Comment on Open RAN with Bullets – Part 2 by D-RAN, C-RAN, vRAN and Open RAN - Telecompedia https://telecompedia.net/open-ran-with-bullets-part-2/#comment-1568 Sun, 05 Jun 2022 11:07:33 +0000 https://telecompedia.net/?p=1310#comment-1568 […] Open RAN with Bullets – Part 2 […]

]]> Comment on Open RAN with Bullets – Part 1 by D-RAN, C-RAN, vRAN and Open RAN - Telecompedia https://telecompedia.net/open-ran-with-bullets-part-1/#comment-1567 Sun, 05 Jun 2022 11:05:03 +0000 https://telecompedia.net/?p=1301#comment-1567 […] Open RAN with Bullets – Part 1 […]

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]]> Comment on A4 Inter-Frequency Handover in LTE by puujee https://telecompedia.net/a4-inter-frequency-handover-in-lte/#comment-652 Sun, 13 Sep 2020 15:01:12 +0000 http://telecompedia.net/?p=101#comment-652 Hello
Thanks for your post. If i set parameter A1=-65, A2=-68, A4=-90 in lte700 cell, this cell takes only bad user right?
thanks

]]> Comment on Voice over LTE by Rahul https://telecompedia.net/voice-over-lte/#comment-623 Sun, 09 Aug 2020 11:50:56 +0000 http://telecompedia.net/?p=211#comment-623 Nice and helpful article….!!

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