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VX4500
8
VX4500
FCC Part 15 Class B Compliance
This device and its accessories comply with part 15 of FCC
rules. Operation is subject to the following two conditions: (1)
This device and its accessories may not cause harmful
interference, and (2) this device and its accessories must accept
any interference received, including interference that causes
undesired operation.
Technical Details
The VX4500 is a dual-band phone that operates on both Code
Division Multiple Access (CDMA) frequencies: cellular services
at 800 MHz and Personal Communication Services (PCS) at 1.9
Ghz.
CDMA technology uses a feature called DSSS (Direct Sequence
Spread Spectrum) that enables the phone to keep
communication from being crossed and to use one frequency
channel by multiple users in the same specific area. This results
in a 10-fold capacity increase when compared with analog
mode. In addition, features such as soft / softer handoff, hard
Handoff, and dynamic RF power control technologies combine
to reduce call interruptions.
The Cellular and PCS CDMA networks consist of MSO (Mobile
Switching Office), BSC (Base Station Controller), BTS (Base
station Transmission System), and MS (Mobile Station). The
following table lists some major CDMA standards.
* TSB -74: Protocol between an IS-95A system and ANSI J-STD-008
1xRTT system receives twice as many subscribers in the wireless
section as IS-95. Its battery life is twice as long as IS-95. High-speed
data transmission is also possible.
CDMA Standard
Basic Air Interface
TIA/EIA-95A
TSB-74
ANSI J-STD-008
TIA/EIA-IS2000
ANSI TIA/EIA 553A
CDMA Dual-Mode Air Interface
14.4kbps radio link protocol and
inter-band operations
IS-95 adapted for PCS frequency
band cdma2000 1xRTT AirInterface
Advanced Mobile Phone Service
MAS-BS
PCSC-RS
Intersystem operations
Nom-signaling data comm.
Speech CODEC
Async Data and Fax
Short message service
Packet Data
Position Determination
Service (gpsOne)
High Speed Packet Data
Cellular base station
Cellular mobile station
PCS personal station
PCS base station
Speech CODEC
TIA/EIA/IS-634
TIA/EIA/IS/651
TIA/EIA/IS-41-C
TIA/EIA/IS-124
TIA/EIA/IS-97
TIA/EIA/IS-98
ANSI J-STD-018
ANSI J-STD-019
TIA/EIA/IS-125
TIA/EIA/IS-96-B
TIA/EIA/IS-99
TIA/EIA/IS-637
TIA/EIA/IS-657
IS-801
TIA/EIA/IS-707-A
Network
Service
Performance
Designator Description
VX4500-(E)Small (1.3).QXD 8/11/04 7:04 PM Page 8