What are the types of handover in LTE?
LTE supports two types of handover: X2-based handover and S1-based handover.
What are 3GPP specifications?
The term “3GPP specification” covers all GSM (including GPRS and EDGE), W-CDMA (including HSPA), LTE (including LTE-Advanced and LTE-Advanced Pro) and 5G specifications. Revised versions of many of these specifications are produced up to four times a year following the quarterly TSG plenary meetings.
What is handover process in LTE?
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.
In which series of the 3GPP specifications is the LTE physical layer found?
TS 36.201
3GPP Specification series
| spec number | title |
|---|---|
| TS 36.201 | Evolved Universal Terrestrial Radio Access (E-UTRA); LTE physical layer; General description |
| TS 36.211 | Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation |
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. Two procedures are defined depending on whether the serving GW (S-GW) is relocated, see [4], [5]. The S1 procedure is used by the source eNB to initiate a handover through the S1-MME interface, see [4].
How do I read 3GPP specs?
All 3GPP specifications have a specification number consisting of 4 or 5 digits. (e.g. 09.02 or 29.002). The first two digits define the series, followed by 2 further digits for the 01 to 13 series or 3 further digits for the 21 to 55 series.
Where can I download 3GPP specs?
The 3GPP specs are published as ETSI deliverables, and these are available in PDF form http://www.etsi.org/standards-search. But you can download a free Word viewer (i.e. read only) from the Microsoft web site.
What is handover procedure?
Effective handover consists of three elements: A period of preparation by out-going personnel; Handover where out-going and in-coming personnel communicate to exchange task-relevant information; and. Cross-checking of information by in-coming personnel as they assume responsibility for the task.
What are LTE specifications?
The LTE specification provides downlink peak rates of 300 Mbit/s, uplink peak rates of 75 Mbit/s and QoS provisions permitting a transfer latency of less than 5 ms in the radio access network. LTE has the ability to manage fast-moving mobiles and supports multi-cast and broadcast streams.
What is X2 handover in LTE?
Intra-LTE (Intra-MME/SGW) handover using the X2 interface is used to handover a UE from a source eNodeB (S-eNB) to a target eNodeB (T-eNB) using the X2 interface when the Mobility Management Entity (MME) and Serving Gateway (SGW) are unchanged.