This is by design, and is reflected in the name - the A in ADSL stands for Asymmetric, reflecting the fact that the speed is not the same in both directions.
There are both technical and marketing reasons for this. On the technical side, it is simpler to provide high speed in the download than the upload direction. On the marketing side, this allows companies to sell high download speeds to private customers for a relatively low cost, since download speed is what most households are interested in, while at the same time charging much more for business customers that need high upload speed as well.
See related link.
Speed is the difference between HDSL and ADSL. HDSL has high upload and download speeds whereas ADSL has a slow upload speed coupled with a high download speed.
A lot of the high speed broadband services feature a faster download speed, that an upload speed. This is fairly common and is called asymmetric. xDSL, aka digital subscriber line, has ADSL which is asymmetric, and SDSL with is symmetric. The download and upload speeds are the same for SDSL, and the download speed is faster with ADSL, but the upload speeds are slower. My cable connection for data, for instance, is 20mbps down, and only 1.5mbps up. This is an asymmetric plan.
Assuming an ADSL line, typical values would be 2 Mbps download and 128 kbps upload.
A lot of the high speed broadband services feature a faster download speed, that an upload speed. This is fairly common and is called asymmetric. xDSL, aka digital subscriber line, has ADSL which is asymmetric, and SDSL with is symmetric. The download and upload speeds are the same for SDSL, and the download speed is faster with ADSL, but the upload speeds are slower.My cable connection for data, for instance, is 20mbps down, and only 1.5mbps up. This is an asymmetric plan.Read more: What_system_uses_one_upload_speed_and_a_faster_download_speed
The main limitation of ADSL (Asymmetric Digital Subscriber Line) is its reliance on copper telephone lines, which limits both bandwidth and distance. As the distance from the service provider's central office increases, the connection speed and quality degrade significantly. Additionally, ADSL offers asymmetric speeds, where download speeds are much higher than upload speeds, which can be a disadvantage for users needing fast upload capabilities.
ADSL stands for "Asynchronous (or Asymmetric) Digital Subscriber Line." It is a type of digital Internet communications carried over an analog line (POTS (Plain Old Telephone Service) or PTSN (Public Telephone Switched Network); they both refer to the same service). Typically, ADSL offers faster downstream communications and slower upstream communications, such as 8Mbit/1Mbit, which means the download speeds are eight times faster than the upload speeds (not including overhead and congestion).
The download speed is typically the faster speed offered on broadband connections to the Internet. Most data plans for high speed broadband services feature a faster download speed, that an upload speed. This is fairly common and is called asymmetric. xDSL, aka digital subscriber line, has ADSL which is asymmetric, and SDSL with is symmetric. The download and upload speeds are the same for SDSL, and the download speed is faster with ADSL, but the upload speeds are slower. My cable connection for data, for instance, is 20mbps down, and only 1.5mbps up. This is an asymmetric plan which is fairly affordable, however, if I tried to garner a faster upload speed, my rate plan goes up substantially for what appears to be a small increase in upload speed (nearly double the monthly cost for a mere 768k faster on upload speed) and for some connections purchasing more upstream/upload speed isn't even an option as it is restricted due to the distance you are from the drop (as is the case with xDSL technology).
ADSL
ADSL stands for Asymmetric Digital Subscriber Line. It is a type of digital communication technology that allows for high-speed internet access over traditional telephone lines. ADSL is characterized by its asymmetric data rates, meaning it provides faster download speeds compared to upload speeds, making it suitable for typical internet browsing and streaming activities.
This in ADSL technique.
Your top adsl speed is based up on different of factors.Some of them are:Distance between your local dslam and your routerQuality of your telephone lineQuality of your routerUsing wifi access or not(since wifi is slower than using old fashioned cords)Even your PC overall perfomance can increase or decrease your adsl speed(download or upload) since PC's with low ram capability or slow hard disk drives tend to give a bad influence to your maximum download adsl speed.
Very High Bitrate Digital Subscriber Line or VDSL/VHDSL is an improved version of the technology, ADSL or Asymmetric Digital Subscriber Line, which we use to connect to the internet. They are different in how they are implemented so you probably cannot use the equipment of one for the other. The most significant difference between the two technologies that is most relevant to the use is speed. ADSL can reach maximum speeds of 8mbps download and 1mbps for upload. In comparison, VDSL can have up to 52mbps for download and 16mbps for upload. Because of the extremely high speeds that VDSL can accommodate, it is being looked at as a good prospective technology for accommodating high bandwidth applications like VoIP telephony and even HDTV transmission, which ADSL is not capable of. Another very useful feature of VDSL stems from the fact that it uses 7 different frequency bands for the transmission of data. The user then has the power to customize whether each frequency band would be used for download or upload. This kind of flexibility is very nice in case you need to host certain files that are to be downloaded by a lot of people. The most major drawback for VDSL is the distance it needs to be from the telephone exchange. Within 300m, you may still get close to maximum speed but beyond that, the line quality and the speed deteriorates rather quickly. Because of this, ADSL is still preferable unless you live extremely close to the telephone exchange of the company that you are subscribed to. Most VDSL subscribers are companies who need a very fast server and would often place their own servers in very close proximity. Due to the limitations of VDSL and its high price, its expansion is not as prolific as that of ADSL. VDSL is only widespread in countries like South korea and Japan. While other countries also have VDSL offerings, it is only handled from a few companies; mostly one or two in most countries. In comparison, ADSL is very widely used and all countries that offer high speed internet offer ADSL