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AirHarmony-4000 DC (Integrated External Duplexers) Installation Guide
UGD-D01123
Airspan Commercial and Internal Use
44
Term
Expansion
MCS
Modulation and Coding Scheme
MME
Mobility Management Entity is the key control-node for the LTE access-network. It is
responsible, among other things for idle mode UE tracking and paging procedure including
retransmissions
MTBF
Mean Time Between Failures
OFDMA
Orthogonal Frequency-Division Multiple Access (OFDMA) is a multi-user version of OFDM
digital modulation scheme, used for eNodeB transmissions to UEs
PDCP
Packet Data Convergence Protocol. A Sub-Layer in LTE responsible for IP Header
De Co p essio , et …
PDU
Protocol Data Unit
PTP
Precision Time Protocol is used to synchronize clocks throughout a network. In this
document, PTP is referring to IEEE1588-2008 protocol
RB
Resource Block
RLC
Radio Link Control. A Sub-Layer in LTE responsible for Ack/Nack, error correction, packet
eo de i g, et …
ROHS
Restriction Of Hazardous Substances
RRM
Radio Resource Management is used to cover all functions that are related to the
assignment and sharing of radio resources among UEs
S-GW
Serving Gateway. A Core entity in the LTE EPC architecture responsible for routing and
forwarding user data packets, while also acting as the mobility anchor for the user plane
during inter-eNodeB handovers and as the anchor for mobility between LTE and other 3GPP
technologies
SBA
Switched Beam Antenna
SC-FDMA
Single-Carrier FDMA is a frequency-division multiple access scheme, dealing with the
assignment of multiple users to a shared communication resource. Used in LTE for UE
transmissions to the eNodeB
SCTP
Stream Control Transmission Protocol is a reliable transport layer
, ensuring in-
sequence transport of messages with congestion control like TCP
SDR
Software Defined Radio
TDD
Time-Division Duplexing. A transceiver mode where the transmitter and receiver operate on
the same carrier frequency
UE
User Equipment. The end user in LTE
WEEE
Waste Electrical and Electronic Equipment