Beginners: Simplified Call Flow Signaling: Handovers

แชร์
ฝัง
  • เผยแพร่เมื่อ 25 ส.ค. 2024

ความคิดเห็น • 15

  • @Tsitsi414
    @Tsitsi414 ปีที่แล้ว +1

    Very good explanation thank you very much ❤

  • @boyandikasimbolon
    @boyandikasimbolon 3 ปีที่แล้ว +2

    GREAT, very helpful. sorry I just watched it now. I like the you explain the signaling message during HO. extraordinary and use conversation language instead of signaling language which is very difficult to understand. thanks dude

    • @boyandikasimbolon
      @boyandikasimbolon 3 ปีที่แล้ว

      Please explain other topics with the same way, like simple languages & animations dude

    • @boyandikasimbolon
      @boyandikasimbolon 3 ปีที่แล้ว

      Anyway, do you know the difference between PRB & VRB in LTE?

  • @ravkmr44
    @ravkmr44 5 ปีที่แล้ว +1

    Pl cover 4G/ims in detail. I mean basic call flows. No need to explain 3g/2g perspective. Thanks! Keep posting your content in short videos..

    • @3G4G5G
      @3G4G5G  5 ปีที่แล้ว

      Thank you Ravikumar. We are trying to cover topics that may not be covered by everyone else; also happily promoting other channels with some good materials. Have a look at YedaCenter channel. It's a new channel but they have lots of stuff on IMS.

  • @kreandi
    @kreandi 5 ปีที่แล้ว +2

    Only hard handover in 4G? Then how VoLTE call can be handed over?

    • @3G4G5G
      @3G4G5G  5 ปีที่แล้ว

      There is generally no packet loss during the handover as all the packets are buffered in the source eNB and transferred to target eNB at HO. If there are still some packets lost then they will be handled by IP layer.

  • @slucar
    @slucar 5 ปีที่แล้ว +1

    Hello, how do you ensure no packets are lost during handover?

    • @3G4G5G
      @3G4G5G  5 ปีที่แล้ว

      Once the UE has handed over to the other RAT, the old packets are forwarded to the new RAT on downlink. In the Uplink, before handover the UE had already stopped sending data when the handover procedure started. You can check out a more detailed procedure here: blog.3g4g.co.uk/2011/03/lte-to-3g-handover-procedure-and.html

    • @slucar
      @slucar 5 ปีที่แล้ว

      @@3G4G5G thank you. I meant for soft handover?

    • @3G4G5G
      @3G4G5G  5 ปีที่แล้ว

      Soft handover (applicable in 3G only) is simpler. Here, only the access network changes while the core network remains the same and in control. Also, as soft handover is make before break, there is always an active connection so there is no packet loss. Let's say that there was some packet loss for any other reason, TCP will have to take care of the lost packets.

  • @ankurverma8792
    @ankurverma8792 2 ปีที่แล้ว

    What will core N/W do

    • @3G4G5G
      @3G4G5G  2 ปีที่แล้ว

      Maybe you should start by following everything here: www.3g4g.co.uk/Training/