Wi-Fi Direct technology. WiFi Direct - what is it? How to set up and how to use WiFi Direct

Ilya 87552

In this article, we will tell you how to connect your phone to a Sony Bravia TV via Wifi, how to duplicate a display, as well as the Wi-Fi Direct and Miracast technologies themselves. Modern Sony TVs have many useful options that significantly expand their functionality. This is the ability to display images from smartphones "over the air", without the need for wires - watch photos, videos, listen to music on a large scoreboard, use your smartphone as a control panel and much more. But in order to take full advantage of these functions, it is important to make the correct settings.

How to connect your phone to a Sony Bravia TV via Wifi is described in the instruction manual. But, despite the detailed manual, many users encounter various difficulties during the installation process. For example, how to proceed if the smartphone is not controlled by Android, but by iOS, or what to do if the phone does not have Direct, where to find the access code from WiF-i in TV, or why did everything follow the instructions, but nothing happens? We will also analyze these questions in this article.

About technologies

Wi-Fi-Direct is an option due to which you can combine mobile gadgets and TV into a single network over the air, bypassing a wired connection via a LAN or the World Wide Web. To connect them, there is no need to use additional equipment and consumables (such as routers, modems, cables, signal splitters and other telecommunications equipment). In this case, the channel bandwidth is identical to the bandwidth of 802.11 devices. In other words, the data transfer rate is the same as when using regular Wi-Fi.

Miracast is a new standard for wireless video transmission. It is based on Dir ect, but in comparison with it, the technology in question has a number of improvements and differences. When creating Mirakast, the developers tried to simplify the process of organizing communication as much as possible. And they did it perfectly. Any owner of a smartphone, tablet, laptop and any other mobile gadget with Miracast support can play games on a tablet or smartphone and display an image on a large screen, display photos, multimedia content. The TV will display everything that happens on the display of the gadget. And all this "over the air", without wires and with just a few touches.

How to set up Wi-Fi on a Sony Bravia TV

It's easy to activate Wi-Fi.Direct on TV. To do this, you need to enable the Built in Wi-Fi checkbox, and then Wi-Fi-Dir ect.

This can be done as follows:

1. Pick up the remote control, find the HOME button on it and click on it. Note! Some users are faced with the fact that after performing this action, the TV freezes and nothing happens. In this case, you must perform a power reset or reboot and then try again. If that doesn't work, try disconnecting all devices from the TV and performing a factory reset.
2. Next, you need to go to the Advanced settings interface. To do this, follow this path: Settings - NETWORK & ACCESSORIES - NETWORK - Advanced settings.
3. On the Built-in.Wi-Fi tab, check the On box.
4. Also set the On in the Wi-Fi.Direct box. Many users are also interested in how to find out the password for Wifi Direct on a Sony Bravia TV. This can be done in the same menu in the Show Network (SSID) / Password dialog. When pressed, a window with the name of the network and the secret code will be displayed on the TV screen. This data is subsequently entered manually in the Wi-Fi debugs of the connected mobile device. If the connection was established successfully, a notification about this will appear on the monitor of the TV receiver.

Now you know how to connect Wi Fi to Sony Bravia TV. Immediately after performing the above actions, the TV goes into synchronization mode and waits for binding. Here you can also set the confirmation of synchronization when trying to communicate with an unfamiliar device: on the remote control, click on the "Options" button and enable the "Registration notification" item.

How to connect an iPhone to a Sony Bravia TV via Wi Fi

1. Activate Wi-Fi Direct on TV using the instructions above.
2. Go to the iPhone settings and select Wi.Fi, then Dir-ect-xx-BRAVIA.
3. In the window that opens, enter the WPA key displayed on the display of the TV receiver, click on Join.
4. Wait while the pairing is established between the devices. This may take a few minutes.
5. After that, the settings window will be displayed. If on the side of the iPhone there is a label for the SSID, and on the side of Sonya Bravia there is a dash, then the docking is established.

If the relationship is not established, try again, after making sure that the password is entered correctly.

Iphone Screen Mirroring on Sony Bravia TV

Unfortunately, not all game and app developers include AirPlay support for their products, and as a result, not all streaming videos from apps or the Web are displayed on TV. You can work around this problem by duplicating content from the iPhone display to the TV screen. To do this, swipe up on the display, expand the Control Center and select AirPlay, then AppleTV.

How to connect your phone to your Sony Bravia TV

Now let's look at the features of connecting devices running Android OS to Sony TV.

As with the iPhone, the first step is to go into the device's settings. In it, find the WI-Fi menu and turn on the module, then click on the three dots, then on Wi-Fi-Direct.

After activating the Wi-Fi-.Direct button, the gadget will start searching for suitable devices. It will take some time. Upon completion, you will be presented with a list of all gadgets available for communication. Select the SSID of your home theater from this list, specify Password. The TV screen will ask you to connect a new device. Click "Ok". Then the TV receiver carries out synchronization and then displays a message about successfully established pairing.

Do not forget that no more than ten external gadgets can be synchronized with TV via Wi-Fi Direct. To see the list of gadgets working in the home network, you need to go to the direct debug menu on the TV set, then press the "Options" button on the remote control and select "Show the list of devices". If you want to remove any of the connections, click on the button located in the center of the remote control. You will see the "Do you really want to remove from the list" dialog box. Use the arrows on the remote to move to the word "Yes", then click on the center button.

How to connect the Internet to a Sony Bravia TV via Wi-Fi, if the phone does not have direct? It's simple. In the TV, enter the Wi-Fi-Direct debugging mode, press the "Options" button on the control panel and select "Manual". In the window that opens, select "Other methods". A window will appear on the monitor displaying the name of the network and the password required to enter. You need to find this name in the Wi.Fi-settings menu of your smartphone and write Password.

How to Mirror Phone Screen on Sony Bravia TV

You can install Screen Mirroring only if both the TV receiver and the mobile device support Miracast technology. As already noted, Miracast is characterized by the simplification of technology. And here everything is really very simple.

Depending on the Android version and smartphone model, the actions may differ slightly. In version Android 6.0, for this, go to the settings - "networks and communications" - "wireless display". Activate the mode. The smartphone will start searching for available equipment, after which your TV will appear in the list. Click on it - the contact will be automatically established, and an image from your mobile device will appear on the TV screen.

If the connection was not established automatically, do the following: click on the "Input" switch, which is located on the control panel, then "duplication", then turn on the wireless display from the smartphone.

tell friends

The capabilities of our smartphones are growing, and with them. Already today we can store files of a rather large size on a smartphone, but it is quite problematic to share them. or cellular data doesn't provide enough speed. This is why many manufacturers have been equipping their smartphones with Wi-Fi Direct for several years now. Colleagues from PhoneArena explained how to use it to transfer large files between smartphones or between smartphones and computers.

Some Android devices do not require additional applications to work with Wi-Fi Direct, but even on them it will be easier to use the function with the application.

Install the application from this link, launch it and immediately proceed with the selection of the files you want to transfer. You can select files by type as well as select entire folders for transfer. Once you find the file you want and decide to transfer it, the app prompts you to make sure both devices are on the same Wi-Fi network.

The next screen of the app will guide you to pair the two devices. If the SuperBeam application is installed on the second Android smartphone, then it is enough to simply scan the QR code. You can also navigate in your browser to the IP address specified in the application and access the selected files. This can be done both on another smartphone and on a computer. Download files of any size with maximum speed.

All over the world, people are less and less fond of cables and patch cords for connecting to the network, but the widespread and beloved Wi-Fi (in the usual implementation through WiFi access points or through a home router with WiFi) is not always the best way to connect devices.

It's great if you could effortlessly connect devices without the presence of WiFi Access Points nearby and the need to remember long passwords! This is exactly what Wi-Fi Direct technology promises to provide.

Is Wi-Fi Direct a standardized technology?

This technology comes through the Wi-Fi Alliance, which is the global association in charge of Wi-Fi certification.

Wi-Fi Direct is Wi-Fi without the need for Internet access

The basic idea behind Wi-Fi Direct is that simple tasks require simple connections. For instance:
- if you want to print something from your laptop or smartphone via a wireless printer, or
- see photos together with someone else who is near you or
- send video (transfer) from smartphone to TV.
None of these tasks require Internet access, but a connection to the other person's printer or mobile device, or to a TV is required. With the use of Wi-Fi direct, solving such problems becomes very simple.

Wi-Fi Direct can also work through a device with Internet access

If you have a Wi-Fi router with Internet access, you can also connect to it via Wi-Fi Direct.

Wi-Fi Direct does not require an access point

Devices with Wi-Fi Direct can connect to each other without the intermediation of a WiFi Hotspot. This is where ad-hoc peer-to-peer connectivity is established when and where required. There is an opportunity to see which devices are available and choose which one you want to establish a connection with. It sounds a lot like Bluetooth methods, but it's really close.

Wi-Fi Direct uses Wi-Fi Protected Setup

Usually you do not want Vasya or Petya to be able to connect to your equipment. For example, you don't want to see neighbors displaying something on your TV ... To prevent this, Wi-Fi Direct uses Wi-Fi Protected Setup and WPA2 to prevent unauthorized connections and keep your communications secure. Information transfer (transfer) is performed via an encrypted channel. There are two methods for establishing connections:
1. By pressing physical buttons on devices
(press the Wi-Fi Direct button on device-1 and then press the same button on device-2)
2. By using special PIN codes
(a common practice is when one device generates a one-time PIN and it must be entered on another device, approx. website).

Wi-Fi Direct knows what's nearby

Wi-Fi Direct includes two convenient features:
1. Search for devices that support Wi-Fi Direct (Wi-Fi Direct Device Discovery),
2. Service search (Wi-Fi Direct Service Discovery).

If these functions are present, then your device will know which devices are nearby and what types of services they offer. For instance,
- if you try to display a photo, then you will only see devices that can display photos,
- if you want to print something, then you will see only devices that can print or are themselves attached to printers.
It is important that this information may be available even before you set up the connection, so you can not waste time trying to access devices that do not support the services you need.

Wi-Fi Direct uses the same chips

WiFi manufacturers do not need to add an additional radio module
into existing devices. The main idea is to get Wi-Fi Direct functionality as part of the standard Wi-Fi radio. There is technological backward compatibility so you don't have to throw away your existing Wi-Fi hotspots.

Wi-Fi Direct is part of DLNA and is present on the Android platform

In November, the Digital Living Network Alliance (DLNA) announced that it has included Wi-Fi Direct in its interoperability testing procedures. Google has added Wi-Fi Direct support to Android (OS Android 4.0 ICS), for example, Wi-Fi Direct support is available on the Samsung Galaxy Nexus, in the network options. (Not all Android 4.x updates have Wi-Fi Direct functionality, but at the time of the article's release, you can already find a large number of free applications for this on Google Play, so there is no problem to get started, approx.website) Representatives of the DLNA alliance say that a strong wave of smartphones with support for certified DLNA and Wi-Fi Direct technologies is expected by 2016.

The first information about WiFi Direct support in smartphones based on the Android platform (Google Android) dates back to the end of 2010, when Samsung announced that the Samsung Galaxy S has WiFi Direct functionality. Nevertheless, according to our information, WiFi Direct became fully supported on Android starting only from version 4.0 (Android 4.0 / Ice Cream Sandwich). But even after upgrading to Ice Cream Sandwich or higher, in most cases a special client is required to be able to transfer files using WiFi Direct.

Check out our via Wi-Fi Direct, krato, simple and straightforward.

The original of this article is available.

To receive announcements on the release of new articles or the appearance of new materials on our website, we offer.

Join our Facebook group:

Wi-Fi Direct is a universal technology that was developed with the aim of providing users with the ability to carry out full-fledged wireless network communication between several devices, as well as to perform high-speed data exchange, regardless of the presence of an access point (router). Help: Created by the Wi-Fi Alliance, also known as Wi-Fi Peer-to-Peer.

By analogy, use is similar to Bluetooth, but has a number of advantages:

• significant connection speed (250 Mbps);
• longer range (the ability to connect in places with poor connection);
• high degree of data protection (WPA2);
• simplicity of connection (without wires and incomprehensible numerous settings);
• the ability to connect literally all electronic devices (smartphones, laptops, tablets, TVs, cameras, printers, digital photo frames) and create one common network.

There is no main coordinator in the Wi-Fi Direct network (like a router in Wi-Fi connections), its role is "transitional" and depends on the power or functionality of the connected devices. Usually it can be a laptop, further on autonomy and peripherals: smartphone, tablet, printer, camera, etc.

Useful Wi-Fi Direct Features

Despite its simplicity, the technology is truly versatile and has two rational functions: Device Discovery and Service Discovery. In other words, they allow gadgets not only to integrate into a network without routers (access points, etc.), but also to predetermine their ability to work on the network. If you want to transfer a video file or a clip, in the list of connections only those devices that can play it will be available to you, which, you will agree, is very convenient.

How to set up Wi-Fi Direct on an Android smartphone

1. Turn on WiFi in your phone settings.
2. Click on the Wi-Fi Direct icon (maybe at the bottom of the screen), start a search for available devices.
3. Confirm the selection of the connected device. Ready!

The same steps need to be done with another device connected to the smartphone.

Tip: If you want to transfer files to your device, select Send via Wi-Fi Direct.

How to connect PC to TV via Wi-Fi Direct

1. We open the instructions for the TV, using the section "How to connect to the router", we connect to the one to which the PC (or laptop) is connected.
2. Next, we perform actions on the computer: "Network" - "Turn on network discovery and file sharing" - "Make the network private". In the window that appears, we see a list of all devices connected to this network. Choosing the right ones.
3. We send files to the TV (read above for how to do this) and enjoy watching them on the big screen.

These instructions are general, standardized, but in principle, each TV model comes with step-by-step instructions with a Wi-Fi Direct section.

Note that Wi-Fi Direct technology is convenient both for home, non-professional use, and for work in offices and corporations (for transferring a large number of video, photo, audio files and presentation materials from smartphones ⁄ tablets ⁄ PCs to projectors, laptops, printers etc.).

How to properly use Wi-Fi Direct on an Android system is a common question that can be found on various forums. The fact is that in the world of software, new types of technologies appear every day that make it possible to significantly facilitate people's lives. One of these technologies is Wi-Fi Direct. Since this is a fairly recent option, few people know how to work with it and for what purposes it is needed.

What is Wi-Fi Direct

This is a type of wireless communication that allows you to exchange information between several smartphones that can also support this technology. I must say that to synchronize and transfer information, you do not need to look for a common access point. In other words, you can connect multiple smartphones directly. Simply put, you can connect multiple Android smartphones via Wi-Fi if they have this technology, respectively.

I must say that this option is available in almost any modern device with Android OS. It is clear that if we are talking about a cheap device, then such an option may be absent. And you don't have to make complex settings. The devices find each other automatically. In addition to ordinary gadgets, such as devices such as tablets, laptops, using such a connection, you can connect via Wi-Fi Direct.

It is important that the smartphone is able to work with this technology. Well, now you can move on to the question - How does this function work?

How technology works

It must be said right away that the speed of information transfer when connected through such a network can reach a threshold of 200-250 Mbit. At the same time, the capture radius with line of sight reaches two hundred meters and about seventy meters indoors. The level of security of the communication channel is also a good indicator.

For Wi-Fi Direct to work, the device must be supplied with a special chip. They come in several varieties:

1. Work at a frequency of 2.4 GHz.
2. Work at a frequency of 5 GHz.
3. Work in two ranges.

Wi-Fi Direct on Android has some useful options. These include Device Discovery and Service Discovery. They enable mobile devices (and other equipment) to search for each other and create one network with each other. In this case, the entire process takes place without the participation of users. Also, it is possible to display detailed information about the capabilities and characteristics of each smartphone. For example, when you want to transfer a clip from a smartphone to another device, only those devices that can receive and read this type of file will be shown in the list of synchronized equipment. All in all, it can be a good replacement for the rather outdated Bluetooth system. But so far, Wi-Fi Direct does not pose a particular threat to the popularity of Bluetooth, as the technology is fresh and has some drawbacks. One of them is a very low level of channel security.

The developers say that such a standard provides a highly secure communication channel. However, in reality this is not entirely true. While the conversation is about personal home use of the system, there is no threat of data hacking. But the problem is much more serious if you work with such a function in a large office. Here, a huge number of users can connect to such a network. Any Wi-Fi Direct for the Windows operating system can act as a proxy server, and thus the PC will receive all data about any smartphone on the network.

Setting up Wi-Fi Direct on Android devices

To set up Wi-Fi Direct on your smartphone, go to the Wi-Fi wireless settings and activate the adapter.

You will be redirected to a search page for gadgets that can also work with this technology. At the same time, it must be said that on other devices it must also be activated.

After your device searches, simply select the desired device and confirm to sync them with each other. Then smartphones will be connected to the same network. Now you can effortlessly transfer documents or broadcast sound and picture to other devices. No additional settings are required.

How to transfer files from an Android tablet using Wi-Fi Direct

Before transfer, enable the option on the connected devices and synchronize them as shown earlier. Then open any file manager on the sending device and locate the file to transfer.

Hold this file until a menu appears on the screen. Find the item "Send via". Next, you should find the option you want (for us, it's Wi-Fi Direct).

As you can see, everything is very easy. Absolutely any user can cope with this. With all that said, absolutely any modern tablet based on the Android system supports Wi-Fi Direct. Separate utilities were also written for Wi-Fi Direct - installing such an application will make working with the technology more convenient and faster.

Disadvantages of Wi-Fi Direct

Like any new technology, this type of communication has its negative features:

1. Clogging of the general ether. The trouble is that when creating a standard network, all devices are connected to one access point. But in the case of Wi-Fi Direct technology, many independent connections are created. Moreover, users of mobile devices and laptops, as well as printers, TVs, set-top boxes, etc. can connect. Ultimately, in one large building, there may be several tens or even hundreds of separate networks. Because of this, a real chaos is happening on the network. At the same time, the network cannot be controlled. This proportionally affects the speed of information transfer.
2. As we wrote earlier, the level of protection is poor when it comes to connecting in large buildings.
3. Energy consumption. Although the option is very useful and helps to transfer large data packets at high speeds, the use of this technology increases energy consumption, thereby reducing the operating time of the smartphone. At the same time, it must be said that Bluetooth requires much less electricity.
4. Impressive coverage radius. It would seem that this fact can be safely ranked among the advantages. The way it is. But attackers can take advantage of this advantage. In addition, given the large number of connected smartphones, the clutter of the air is much faster.
5. Well, at the very end, I must say that to enable this technology, a special chip is required. Of course, new phones are now equipped with both Wi-Fi and Wi-Di adapters. But there are still some smartphones that do not work with the above technology.