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Single Carrier Radio Transmission Technology (1xRTT)

Definition - What does Single Carrier Radio Transmission Technology (1xRTT) mean?

Single Carrier Radio Transmission Technology (1xRTT) refers to a 3G wireless technology standard in accordance with the Code Division Multiple Access (CDMA) platform. 1xRTT was the primary type of CDMA2000 technology, which is the International Telecommunications Union's (ITU) CDMA application of the International Mobile Telecommunications 2000 (IMT-2000) standard.

Basic 1xRTT systems have a theoretical network voice potential of approximately 144 KBps, even though the maximum possible rate is approximately 80 KBps.

1xRTT is also known as the 2.5G standard.

Techopedia explains Single Carrier Radio Transmission Technology (1xRTT)

Considered the first stage in CDMA's 3G technology advancement, the 1xRTT provides better network capacity than earlier digital solutions, allowing for more users and fewer call drops. 1xRTT's modulation scheme virtually doubles the volume of voice users and creates data channels as high as 144 kbps. Digital wireless technology uses a spread spectrum method to spread a signal over an array of frequencies.

1xRTT networks transmit data in packets and are always on, indicating that users are able to connect to the Internet within seconds and stay constantly connected without interruption. When no data packets are transmitted, the service becomes inactive, which helps free up resources so that users can make voice calls or send text messages, according to their preference. When required, users may resume their Internet sessions exactly where they left off, and there is no need to redial. Using 1xRTT services allows users to be billed only for the volume of data received or sent, not for the entire logged period.

Apart from improving data transfer, 1XRRT also facilitates greater user network volume and extended battery life.

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