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Hardware Integration Guide
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
dB
dBm
DC-HSPA+
DCS
DL
DUN
DRX
DSM
DUT
EDGE
eHRPD
EIRP
EMC
EMI
ERP
ESD
FCC
FDMA
FER
firmware
FOTA
FOV
22
Proprietary and Confidential - Contents subject to change
Definition
Decibel = 10 x log
(P1 / P2)
10
P1 is calculated power; P2 is reference power
Decibel = 20 x log
(V1 / V2)
10
V1 is calculated voltage, V2 is reference voltage
A logarithmic (base 10) measure of relative power (dB for decibels); relative to
milliwatts (m). A dBm value will be 30 units (1000 times) larger (less negative)
than a dBW value, because of the difference in scale (milliwatts vs. watts).
Dual Carrier HSPA+
Digital Cellular System
A cellular communication infrastructure that uses the 1.8 GHz radio spectrum.
Downlink (network to mobile)
Dial-Up Networking
Discontinuous Reception
Distributed Shared Memory
Device Under Test
Enhanced Data rates for GSM Evolution
Evolved High Rate Packet Data — Enhances traditional
to CDMA handover.
Effective (or Equivalent) Isotropic Radiated Power
Electromagnetic Compatibility
Electromagnetic Interference
Effective Radiated Power
Electrostatic Discharge
Federal Communications Commission
The U.S. federal agency that is responsible for interstate and foreign
communications. The FCC regulates commercial and private radio spectrum
management, sets rates for communications services, determines standards for
equipment, and controls broadcast licensing. Consult www.fcc.gov.
Frequency Division Multiple Access
Frame Error Rate — A measure of receive sensitivity.
Software stored in ROM or EEPROM; essential programs that remain even when
the system is turned off. Firmware is easier to change than hardware but more
permanent than software stored on disk.
Firmware Over The Air — Technology used to download firmware upgrades
directly from the service provider, over the air.
Field Of View
1xEV-DO
to enable
LTE
4112880
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