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CAPEX
Capital Expenditure. An expenditure connected to acquiring or upgrading physical assets such as equipment, property or buildings.

Carrier
In wireless communications, an electromagnetic pulse, channel or radio wave transmitted at a steady base frequency. Used to transmit radio signals to a radio receiver. Also, a term commonly used to refer to a wireless network operator or service provider that provides mobile telecommunications services.

CDMA
Code Division Multiple Access. A digital wireless technology that converts analog information, such as speech, into digital information, which is then transmitted as a radio signal over a wireless network. CDMA uses spread-spectrum technology, decreasing potential interference while achieving privacy. CDMA technology is the basis for third generation (3G) wireless technologies which offer increased voice capacity and provide higher data rates than 2G and 2.5G networks.

CDMA2000® - a.k.a. IS-2000
CDMA2000 is a family of third generation (3G) wireless standards that offers enhanced voice and data capacity and higher data rates than previous, second generation wireless standards. The CDMA2000 standards include CDMA2000 1X and CDMA2000 1xEV-DO. CDMA2000 is a direct evolution of the cdmaOne standard.

CDMA2000 1X - a.k.a. 1X, 1xRTT, CDMA2000
CDMA2000 1X is an IMT-2000 (3G) wireless technology that enables high-quality voice and high-speed data communications. It is the most efficient wireless technology for circuit-switched voice communications and it supports packet data speeds of up to 153.6 kbps in a single (1X) 1.25 MHz radio channel.

CDMA2000 1xEV-DO - a.k.a. EV-DO, DO
CDMA2000 1X Evolution - Data Optimized. Third Generation wireless technology that offers broadband data speeds to support applications such as VPN access, video downloads and large file transfers. CDMA2000 1xEV-DO is a direct evolution of CDMA2000 1X.

CDMA2000 1xEV-DV
CDMA2000 1X Evolution Data and Voice. Third Generation wireless technology that was proposed to support high-speed voice and data on the same channel to enable Internet connectivity for cellular phones, PDAs and other mobile devices. This technology will not be commercialized.

cdmaOne™
A brand name, trademarked and reserved for the exclusive use of the CDG member companies. cdmaOne was the term coined to describe the original CDMA systems based on the IS-95A and IS-95B standards, which made use of 1.25 MHz channels to deliver voice and data.

CDPD
Cellular Digital Packet Data. An add-on technology that enabled first-generation (1G) analog systems to provide packet data. 2.5G and 3G systems are replacing CDPD.

Cell
The geographic area encompassing the signal range from one base station. Wireless networks are comprised of many overlapping cells to efficiently use radio spectrum for wireless transmissions.

Cell Site
A fixed transmitter/receiver location, also known as a base station or a cell tower, which establishes communications between a wireless system and a wireless device using radio links. The cell site includes an antenna tower, transmission radios and radio controllers.

Cell Tower
A fixed transmitter/receiver location, also known as a base station or a cell site, which establishes communications between a wireless system and a wireless device using radio links. The cell tower includes an antenna tower, transmission radios and radio controllers.

Cellular
Analog or digital communications that provide a consumer with a wireless connection from the mobile device to a relatively nearby transmitter (base station). The transmitter’s coverage area is called a cell.

Channel
The amount of wireless spectrum occupied by a specific technology implementation. For cellular communications, there is a transmit side and a receive side. For example, a 5 MHz channel uses 5 MHz to transmit and 5 MHz to receive, using a total of 10 MHz of wireless spectrum.

Circuit-Switched Network
Networks that temporarily establish a physical circuit “connection” and keep that circuit reserved for the user until a disconnect signal is received. A dial-up modem is an example of a circuit-switched connection. In contrast, a packet-switched network is connectionless or “always on,” eliminating the need to initiate a connection for data transfer.

Coverage Area
Geographic area served by a cellular system in which service is available to wireless users.

CRM

Customer Relationship Management. An integrated information management system that is used to plan, schedule and control the pre- and post-sales activities within an organization to improve customer tracking and communication. Enterprises can wirelessly extend their CRM solutions, enabling sales professionals to remotely access timely customer data for increased productivity and improved customer service.

	Created by Jesus Alatorre over 9 years ago

Note on CDMA2000 1X, created by Jesus Alatorre on 07/11/2014.

CDMA2000 1X