What is blind HO?
What is blind HO?
Blind HO works when you define colocated priority in ncell as high better than connected freq in utrannfreq, but measurement redirection is required. Blind RSRP is -80 by default in Huawei command.
What is blind handover in 3g?
Blind handover: This form of handover occurs when the base station hands off the UE by passing it the details of the new cell to the UE without linking to it and setting the timing, etc of the mobile for the new cell. In this mode, the network selects what it believes to be the optimum GSM based station.
Which network element in LTE takes care of inter eNodeB handover and inter 3gpp handover?
In case when X2 interface is not available and source eNodeB and target eNodeB are part of same MME/SGW then handover is carried out through S1 interface. The S-eNB initiates the handover by sending a Handover required message over the S1-MME reference point. The EPC does not change the decisions taken by the S-eNB.
What is LTE handover?
Abstract: Handover in LTE occurs when a device moves from the cell coverage serving it towards another; a process where the user established session must not be interrupted due to this cell change.
What is LTE redirection?
Just based on my personal understanding, “Redirection” is the mechanism of chaning cells from one (let’s call this ‘serving/source cell’) to another (let’s call this ‘target cell’) at a specific point in the call process where RRC Session has initiated but it is before initiating Radio Bearer Setup.
What is inter handover in LTE?
Inter-LTE Handover: Handover happens towards other LTE nodes. ( Inter-MME and Inter-SGW) Inter-RAT: Handover between different radio technologies. For example handover from LTE to WCDMA.
What is S1 and X2 handover in LTE?
The X2 procedure is used to handover a UE from a source (H)eNB to a target (H)eNB for which the MME is unchanged. The S1 procedure is used by the source eNB to initiate a handover through the S1-MME interface, see [4].
What is difference between redirection and handover?
In Handover procedure, target cell allocates all the required radio resources (Radio bearers and dedicated PRACH resource) upfront for the UE to move seamlessly. UE stays in connected mode during this procedure. In Redirection procedure, target cell will not be allocating any radio resources upfront.
What is extended service request in LTE?
LTE: Extended Service Request Ø The EXTENEDED SERVICE REQUEST message is sent by the UE to the network to initiate a “CS fallback or 1xCS fallback call” or respond to an “MT CS fallback or 1xCS fallback” request from the network.
What is the difference between intra and inter handover?
Such a handover, in which the source and the target are different cells (even if they are on the same cell site) is called inter-cell handover. Such a handover, in which the cell is not changed, is called intra-cell handover.
Which network element in LTE takes care of inter eNodeB handover and inter 3GPP handover?
What is X2 interface in LTE?
The X2 is the interconnecting interface between two eNodeBs in LTE network and supports both Control Plane and User Plane. The principle Control Plane protocol is X2-AP (X2 Application Protocol) resides on SCTP (Stream Control Transmission Protocol).
