Wi-Fi Direct on Android: how to use, secrets technology. What is a Wi-Fi Direct in the phone and how it works What is a Wi Fi Direct technology

What is WiFi DirectWhy is it needed on the phone? You probably have repeatedly transferred files via Bluetooth and sometimes I had to wait for a very long time until one big file was transmitted. WiFi Direct is an excellent opportunity to transfer large-volume files from one phone to another phone, tablet or other device with the support of Wi-Fi technology direct.

How to transmit files via WiFi Direct? Since in our time, the technologists are improved every day, then we can watch high quality films on our phone, as well as the phone is able to shoot no less high-quality video that can occupy not one GB of memory. And now imagine if we want to transfer or take a video of good quality, even the most high-speed bluetooth will take no little time. That is why, to transfer large volume files, we better use WiFi Direct with which we can dozens of time to transfer files from one phone to another phone or device supporting this function. Now I think you begin to understand what WiFi Direct is on the phone and why it is needed.

How to transmit files through wi fi? Nothing difficult on the transmitted phone you need to enable WiFi, and on the receiving phone or other device, enable WiFi and WiFi Direct. Next, select the desired file, wallpaper, music or video on the phone and select WiFi Direct in the transmission features, and confirm the reception on the receiving device. After that you will see how quickly can be transmitted via Wi-Fi compared to Bluetooth or IR port. You probably understood basically what Wai Fi direct and why it is needed, this feature helps to transmit high speed files to another device.

This is how it is possible enable WiFi Direct on AndroidPerhaps on some devices, the power method may differ slightly, but I think if you think a little yourself, I will not find much difficulty. And so that finding where the WiFi Direct is turned on on Android. Open the "settings" later "all settings" then "more" and opposite the "WiFi Direct" item put a tick and everything, the Wi Fi direct function is turned on. Now you can send and receive files at high speed, but before that, do not forget to enable Wi-Fi on the transmitting device.

• I hope the information about the Wi-Fi Direct on the phone was useful.
• If you have more useful information, we ask you to share below in the reviews.
• Perhaps the info you left will be useful.
• Thanks for the responsiveness and useful information about Fi Wai Direct.

How to use Wi-Fi Direct on Android is a very common question. The fact is that new technologies are constantly emerging in the world, allowing to simplify the lives of people. One of them is Wi-Fi Direct. Since this is a relatively new technology, few people know how to use it and why it is needed.

What is Wi-Fi Direct

This is a new wireless standard that allows you to transmit information between several devices that support this technology. It is worth noting that for connecting and transferring data you will not need an access point (router). In other words, you can connect two or more devices directly. For example, you can connect two Android phones via Wi-Fi if they support this technology.

It is worth noting that such a function is supported by almost every modern tablet and smartphone with Android OS. Of course, if we are talking about budget gadget, then such functions may be absent.

And you don't need to customize anything.

Devices define each other automatically. In addition to the usual gadgets, such as laptops, smartphones, tablets, and so on, with Wi-Fi Direct, you can connect printers, scanners, Smart TV, digital photo frames, DVD players, etc.

The main thing is that the device is equipped with this feature.

Now you know what Wi-Fi Direct is on the Android phone. Now you can go to the question, how this standard works.

How technology works

Immediately it is worth noting that the data rate with a direct connection can reach 200-250 Mbits. At the same time, the radius of action in direct visibility is 200 meters and about 50-100 meters in buildings. Also special attention is worthy of the level of security of such a communication channel.

To work with this standard, the device must be equipped with a corresponding chip. They are several types:

• Work in the range of 2.4 GHz.
• In the range of 5 GHz.
• Working in both bands.

Wi-Fi Direct on Android has very useful features. For example, Device Discovery, as well as Service Discovery. They allow smartphones and tablets (and other devices) to find each other and create a network among themselves. In this case, everything happens without your participation.

Moreover, these functions allow you to receive information about the capabilities of each gadget on the network. For example, when you want to transfer a video from a tablet to another device, only those that can accept and play this file will be displayed in the list of connected devices.

Developers argue that this standard creates a sufficiently protected communication channel. However, in fact it is not. While we are talking about home use, there are no threats for personal data. But the situation is different if you use such a function in the office. Here a lot of users can join the network. Any Wi-Fi Direct for Windows can act as a proxy role, and such a computer will receive all the information about any device on the network.

Setting up Wi-Fi Direct on Android devices

To configure the Wi-Fi Direct on Android, enter the Wi-Fi wireless network settings and turn on the adapter.

You will automatically go to the search page of devices that also support this feature. It should be noted that on other gadgets it should also be included.

After your smartphone finds the desired connection, simply select it and confirm the connection. Next, the devices will be combined into one network (like Bluetooth). Now you can transmit files or broadcast sound and image to other devices. No need to customize anything.

How to transfer files from Android tablet with Wi-Fi Direct

To begin with, turn on this feature on the transmitting and receiving device and connect them as described above. Then open the file manager on the sending device and find the desired file.

Hold your finger on it until the menu appears. Select "Send through". Next, select the appropriate option (in our case it is a Wi-Fi Direct).

As you can see, everything is very simple and understandable. This will cope with absolutely everyone. At the same time, as mentioned above, each modern Android tablet supports Wi-Fi Direct technology.

There is a Wi-Fi Direct application for Android - installing such a program will make the use of a new communication standard on your phone or tablet easier and more convenient.

In addition to simply transferring data, users can connect through this standard and devices such as printers, televisions, audio system and so on. It is important that these devices be equipped with a corresponding chip.

Wi-Fi Direct Disadvantages

Like any other technology, this standard of wireless communication has its drawbacks:

• Blooming the ether. The fact is that when organizing a regular network, all gadgets are connected to one access point. But in the case of Wi-Fi Direct, a variety of separate connections are created. Moreover, participants can be like people (users of tablets, smartphones, laptops, and so on) and gadgets - printers, scanners, televisions, etc. As a result, several dozen or even hundreds of networks can be in one multi-storey building. Because of this, the air creates a real bardak. At the same time, it is impossible to control the network. This, in turn, is reflected in the data transfer rate.
• As mentioned above, weak level of protectionIf we are talking about connecting in office and public buildings.
• Energy intensity. On the one hand, this feature is very useful and allows you to transmit large files at high speed. This inspectantly reduces the cost of information transfer. But this speed requires significant energy costs.

And considering how much it will affect the autonomy of the gadget, it should be understood that it is not necessary to get involved in this feature. Smartphones and tablets are already discharged enough. It should be noted that Bluetooth consumes much less electricity.

• Big radius of action. It would seem that this is an advantage. On the one hand, it is. But on the other hand, the attackers can take advantage. In addition, given that in this way we litter the ether, such a range becomes more negative than positive quality.
• And finally, it is worth remembering that to use this function required chip required. Of course, modern phones are equipped with both adapters (Wi-Fi and Wi-Di). But there are still many devices that do not support this technology.

So, now you know how to connect Android to Android through Wi-Fi directly. Despite the existing shortcomings, this relationship still uses distribution. And even though she will not oust Bluetooth, still its useful opportunities simplify some tasks.

Wi-Fi Direct on Android: Video

If you relatively recently purchased a smartphone or tablet on the latest versions android tablet, you probably met in the settings of wireless networks a new item - Wi Fi Direct. What is it and what is it necessary for? We answer your questions.

Data exchange at high speed and without the participation of the router

What is wi fi direct

Wi Fi Direct is a relatively new wireless communication protocol designed to connect between two or more devices without. Simply put, technology that allows us to combine phones and / or tablets running android, without requiring a router.

Technically, this is implemented on Wi-Fi-modules similar to those that provide us with the Internet. Accordingly, the technology will support the same wireless communication standards. Modules operate at a frequency of 2.4 or 5 GHz, but most of them support both modes, therefore will be able to operate in wireless networks of any standard (802.11 A / B / G / N /).

There is a reasonable question: what is the difference between the Wi-Fi connection from Bluetooth technology is familiar to us? Here is its main differences:

• higher data transfer rate;
• broadcast radius;
• and most importantly - the possibility of connecting several devices among themselves, and not only two; Moreover, only one of them will be sufficiently equipped with a chip that supports the Direct.

In addition, users have no single opinion about the security of such compounds. Developers assure that Wi Fi Direct is higher than Bluetooth, but in fact it turns out otherwise. For the home network, there will be no special difference here, but when the group of devices is turned on to the Wi-Fi network, say, in the office, each of them not only creates a separate connection (which significantly clogs the ether), but also can serve as a proxy for anyone who Connect to it. It turns out that the level of connection security at this point remains in question.

How is this technology used?

To take advantage of this method of communication, you will not need any - all your actions will not differ from the usual switching on Wi-Fi:

1. Enter wireless network settings, enable Wi-Fi.
2. On the screen where the list of available connections is displayed, go to the "Wi Fi Direct" tab.
3. In the list that appears, select the desired destination name or multiple and press "Connection".

Now you can transmit any data on Wi-Fi - music, images, documents - to other devices. Suppose you need to send photos from your phone to the tablet (provided that both gadgets are running android):

1. We go through where the necessary files are located.
2. Select one or more images or other materials.
3. In the menu, we find the item "Send", among the options that appeared "Wi-Fi Direct".
4. Now it remains only to select the receiving device - and the files will go to it "by air".

Conclusion

As you can see, Wi Fi Direct is able to largely facilitate the task of communication between devices and data transfer. For example, a connection to a network of multiple tablets or phones can really like network games to lovers: they can even play with each other even. The main thing is that their devices are in the area of \u200b\u200breaching each other.

Wi-Life comment: This technology is intended for personal use or use in small groups, and, we can say, speaking on this topic, we are somewhat deviating from the main direction of the resource. Nevertheless, Wi-Fi Direct may well be a common and convenient addition to network corporate Wi-Fi infrastructures, so we decided to consecrate this topic on our website.

The WI -FI Certified Wi -Fi Direct ™ certification sign is marked with devices that support new technology that allows devices to connect directly. This makes it possible to significantly simplify such tasks as printing documents, sharing documents, synchronization and display information. Devices that having this sign can be connected directly to each other and without necessity to join the traditional home or office network WiFi standard.

Mobile Phones, Camera, Printers, Computers, Gaming devices can now connect directly to transmit content (Transfer) and collaborating with applications quickly and simply. The connection of devices certified as Wi-Fi Direct is very simple and carried out with one touch of a button. At the same time, only one device is obliged to have a Wi-Fi Direct support. To connect to it and subsequent data exchange, any other wireless equipment can be used. All WiFi Direct connections are protected using WPA2, which is the most advanced radio channel security technology in Wi-Fi (). Wi -fi Direct allows devices to contact each other directly without an access point, and no need to look for an Internet access.

In what cases is usedWi- FiDirect.

Devices with Wi -Fi Direct can be used for all types of applications - share content (collaboration with information), synchronize data, communicate on social networks, play games, listen to music or watch video, etc., i.e. Do all the same things you make with Wi-Fi devices today, but only easier and without the need to provide an Internet connection. Wi-Fi Direct certified devices can form connections with virtually all certified and standardized Wi-Fi devices that already have your friends or acquaintances. You only need one WiFi support device directly to form a group. Now network based on Wi -Fi standard is not just an access environment with the main task in the form of an Internet access, but this ensures that you interact with your friends everywhere.

According to recent research, users worldwide said that they would like to use Wi-Fi Direct to exchange messages in chat, decaying photos, output photos from portable devices to a monitor or TV screen, using a video chat and a joint game in video games outside the house, for example , in public transport.

How Wi-Fi Direct works

It is important to say once again that use Wi - Fi Direct possible without the presence of any networkWi - Fi.. We only need to have at least two devices. You can see available devices and request connection to them or you can get an invitation message to attach from another Wi-Fi Direct device.

This uses the search features of devices and services.Wi - Fi Direct: Wi - Fi Direct Device Discovery and Service Discovery These enable users to install available devices and services before establishing a connection. For example, if a user wants to print a document, it can find out which Wi-Fi network supports the printer.

A device certified to Wi-Fi Direct can set the P2R peer-to-peer connections, and can also participate in scenarios of similar infrastructure.Wi - Fi Direct Devices can join standard networksWi Fi, as ordinary Wi-Fi devices. Wi - Fi Direct Devices can form a point-to-point type topology (one-to-one or peer-to-peer) or point-multipoint (one-to-many). The last option is similar to the BSS model.

In the group can participate devices as certified onWi - Fi Direct and just having the usualWi - Fi. Certification. However, only the device can be generated and supported.Wi - Fi Direct. Normal Wi - Fi Devices can only be customers in this group.

When two or more devices certified to Wi-Fi Direct are mounted, they formWi - Fi Direct group using technologyWI - FI PROTECTED SETUP (Simplified secure connection inWi - Fi ( approx. Wi- Life.. ru) and the most modern safety mechanismsWi - Fi. . For safe useWI - FI PROTECTED SETUP either simultaneously press the corresponding buttons on both devices, or introducedPIN. -the code. After that you can start doing everything you need.

P2R Technology (Peer - To - Peer ) Play an important role in cases where you need to establish a quick connection.

Let's look at some examples of using Wi-Fi Direct to provide additional features to users:

A student in the hostel must print the task before coming to the audioity. Its laptop has access rights to the Wi-Fi university network, but it has no right to attach its printer to the Wi-Fi network and use it. In this typical situation, the student can print documents on the printer directly using Wi-Fi Direct and, at the same time, check mail through the Wi-Fi University Network.

Friends gathered at a party, remove each other on the cameras of their smartphones and shake photos with all those who wish.

- The company's employee was on a business trip with his tablet or a light netbook, and then on arrival in a simple way synchronizes the files that it created with its corporate laptop

In all these cases, Wai Fi Direct will be excellent technology simplifying life.

One of the main sources served as the basis for this article is (eng).

To obtain announcements at the release of new thematic articles or the appearance of new materials on the site we offer.

Join our group on