The CDMA2000 Family of Technologies
CDMA2000 represents a family of standards and includes CDMA2000 1X and CDMA2000 1xEV-DO technologies.
CDMA2000 1X can nearly triple the voice capacity of cdmaOne™ networks and delivers peak packet data speeds of 153 kbps (Release 0) or 307 kbps (Release 1) in mobile environments in a single 1.25 MHz channel.
CDMA2000 1xEV-DO (Evolution-Data Optimized) is a data centric technology that allows operators to offer advanced data services.
CDMA2000 1xEV-DO Release 0 delivers up to 2.4 Mbps data speed; in commercial networks it delivers 300-600 kbps in a single 1.25 MHz channel, the highest data rates of any wireless technology deployed today. It s upports the most advanced data applications, such as MP3 transfers and video conferencing, TV broadcasts, video and audio downloads. It has been commercial since 2002.
CDMA2000 1xEV-DO Revision A (Rev A) delivers peak data speeds of 3.1 Mbps on the downlink and 1.8 Mbps on the uplink and incorporates quality of service (QoS) controls to manage latency on the network . With Rev A, operators will be able to introduce advanced multimedia services, including voice, data and broadcast over all-IP networks. Rev A will be commercially available in 2H 2006.
CDMA2000 Revision B (Rev B) standard will be published in the first half of 2006. Rev B introduces a 64-QAM modulation scheme, and will deliver peak rates of 73.5 Mbps in the forward link and 27 Mbps in the reverse link through the aggregation of 15 1.25 MHz carriers within 20 MHz of bandwidth. A single 1.25 MHz carrier and an aggregated 5 MHz carrier in the forward link will deliver a peak rate of up to 4.9 Mbps and 14.7 Mbps, respectively. In addition to supporting mobile broadband data and OFDM-based multicasting, the lower latency characteristics of Rev B will improve the performance of delay-sensitive applications such as voice over Internet protocol (VoIP), push-to-talk over cellular, video telephony, concurrent voice and multimedia, and massive multiplayer online gaming. Rev B will be commercial in 2008.
CDMA2000 1X and CDMA2000 1xEV-DO are backward compatible with cdmaOne.
CDMA2000 1xEV-DO Revision A (Rev A) delivers peak data speeds of 3.1 Mbps on the downlink and 1.8 Mbps on the uplink and incorporates quality of service (QoS) controls to manage latency on the network . With Rev A, operators will be able to introduce advanced multimedia services, including voice, data and broadcast over all-IP networks. Rev A will be commercially available in 2H 2006.
CDMA2000 Revision B (Rev B) standard will be published in the first half of 2006. Rev B introduces a 64-QAM modulation scheme, and will deliver peak rates of 73.5 Mbps in the forward link and 27 Mbps in the reverse link through the aggregation of 15 1.25 MHz carriers within 20 MHz of bandwidth. A single 1.25 MHz carrier and an aggregated 5 MHz carrier in the forward link will deliver a peak rate of up to 4.9 Mbps and 14.7 Mbps, respectively. In addition to supporting mobile broadband data and OFDM-based multicasting, the lower latency characteristics of Rev B will improve the performance of delay-sensitive applications such as voice over Internet protocol (VoIP), push-to-talk over cellular, video telephony, concurrent voice and multimedia, and massive multiplayer online gaming. Rev B will be commercial in 2008.
CDMA2000 1X and CDMA2000 1xEV-DO are backward compatible with cdmaOne.
CDMA2000 benefited from the extensive experience acquired through several years of operation of cdmaOne systems. As a result, CDMA2000 is a very efficient and robust technology. It delivers the highest voice capacity and data throughput using the least amount of spectrum, and it can be used to provide services in urban as well as remote areas cost effectively.
The unique features, benefits, and performance of CDMA2000 make it an excellent technology for high-voice capacity and high-speed packet data. Since CDMA2000 1X supports both voice and data services on the same carrier, it allows operators to provide both services cost efficiently. CDMA2000 1xEV-DO is optimized for data and is capable to support large volumes of data traffic at broadband speeds. 1xEV-DO is well suited to provide high-speed data services to its mobile subscribers and/or broadband access to the Internet.
Due to its optimized radio technology, CDMA2000 enables operators to invest in fewer cell sites and deploy them faster, ultimately allowing the service providers to increase their revenues with faster Return On Investment (ROI).
The CDMA2000 evolutionary path was designed to minimize investment and the impact to an operator’s network without service interruption for the end-user. This has been achieved through backward and forward compatibility, hardware reuse, in-band migration and hybrid network configuration. This unique feature of CDMA2000 technologies has provided operators a significant time-to-market advantage over other 3G technologies.
Key advantages of CDMA2000 technologies include:
Increased Voice Capacity
Higher Data Throughput
Multicast Services
Increased Voice Capacity
Higher Data Throughput
Multicast Services
Additional advantages of CDMA2000 include:
Frequency Band Flexibility
Migration Path
Serves Multiple Markets
Supports Multiple Service Platforms
Full backward compatibility
