What is dual carrier in 3G?
Dual Carrier 3G (DC or DC-HSPA) offers 42 Mbps speed and is based on technology that bonds two 3G channels together to provide a faster data session. …
What is HSDPA HSUPA?
HSPA refers to the combination of high-speed downlink packet access (HSDPA) and high-speed uplink packet access (HSUPA). HSDPA allows data rates up to 14.4 Mbit/s in the downlink. HSUPA makes uplink data rates of 5.76 Mbit/s possible. Both features enable a maximum data rate of 42.2 Mbit/s in the downlink.
What does HSDPA mean?
High Speed Downlink Packet Access (HSDPA) is sometimes referred to as 3.5G, 3G+, or Turbo 3G. When it was first rolled out in the early 2000s, it significantly enhanced the third generation (3G) cellular telecommunication system.
What are the new channels introduced in HSDPA?
HSDPA enables much higher speed data transfer and one reason it can achieve it is because of new channels that have been added. The three main channels are High Speed Downlink Shared Channel, HS-DSCH; High Speed Signalling Control Channel, HS-SCCH; and High Speed Dedicated Physical Control Channel, HS-DPCCH.
What are the key features of HSDPA?
HSDPA is based on shared channel transmission, and its key features are shared channel and multi-code transmission, higher-order modulation, short transmission time interval (TTI), fast link adaptation and scheduling, and fast hybrid automatic repeat request (HARQ).
What is HSDPA mobile network?
HSDPA (High-Speed Downlink Packet Access) is a packet-based mobile telephony protocol used in 3G UMTS radio networks to increase data capacity and speed up transfer rates.
What is Dual-Cell HSDPA (DB-DC-HSDPA)?
Dual-Cell HSDPA aggregates two adjacent downlink carriers to offer higher peak data rate, and to improve capacity and user experience for data applications. Dual-Band Dual-Cell HSDPA (DB-DC-HSDPA) further enables aggregation across two frequency bands. The following diagram illustrates the concept behind DB- DC-HSDPA.
What is the difference between HSPA and Dual Carrier HSPA?
As most of the traffic is in the downlink direction, dual carrier HSPA is applied to the downlink – i.e. HSDPA elements, and therefore dual carrier HSPA is also known as DC-HSDPA.
What is DC-HSDPA technology?
HSDPA technology has its limits and to further enhance its performance, the DC-HSDPA technology was introduced. An advanced HSDPA+ network can theoretically support up to 28 Mbit/s and 42 Mbit/s with a single 5 MHz carrier.
What is the concept of packet data in HSDPA?
The concept of packet data is that it data is split into packets with a destination tag, and these are sent over a common channel – sharing the channel as data traffic from one source is not there all the time. DC-HSDPA seeks to take apply this principle to the multiple carriers that may be available to an operator.