Heterogeneous intelligent connection capabilities are opened, redefining the multi-screen interactive experience

Content source: Huawei Developer Conference 2021 HMS Core 6 System Technology Forum, the keynote speech "Heterogeneous Intelligent Connectivity Opening, Redefining Multi-screen Interactive Experience".

Speaker: Wang Tongbo, Huawei Terminal Wi-Fi Technical Expert

Speaking of "multi-screen interaction", we can easily think of a typical application scenario: screen projection. Regarding screen projection, have you ever encountered such problems :

• The photos or videos taken by the mobile phone want to be displayed on the TV, but the data cable connection cannot be found, or the mobile phone and the TV set take a long time to search and cannot connect to the same network;
• To share files with mobile phone multi-screen interaction, you need to disconnect the screen projection connection before sharing files;
• Headaches such as large projection protocol delays, freezes, poor projection quality, and unsynchronized audio and video often occur.

In general, this is caused by the poor interoperability of multi-screen interactive devices, which leads to poor user experience.

Wi-Fi insight into the traditional cast-screen experience poor main reason , we found three pain points :

• The Wi-Fi P2P connection process is complicated;
• The Wi-Fi P2P protocol only supports 1-to-1, 1-to-multiple star connections, and cannot establish any multipoint connection;
• Same frequency and different channels: The high interference caused by the overlap of the projection channel and the connection channel, and the high delay caused by frequent channel switching.

How to solve these pain points?

Let me tell a short story: During the eleventh period, I visited a friend's house and shared pictures and videos of the trip. At this time, we thought that we could use Huawei's smart screen, so we took out our mobile phone and completed the one-key connection in less than 2 seconds. Behind such a smooth experience is the Huawei heterogeneous intelligent connection module that I want to launch today.

Four core competencies of heterogeneous intelligent connection modules

Unlike traditional Wi-Fi module, heterogeneous chi module has a cross-technology, cross-device, cross-system advantages , we can provide enhanced communications base for the IoT device integrates four core competitiveness, to provide users Better communication experience.

to Quick Connect: Help IoT rapid distribution network

performs distance measurement based on the signal strength, and the mobile phone device is close to automatically discover and pop up the window to configure the network . Compared with the traditional protocol, the power consumption of the heterogeneous intelligent connection protocol has increased from more than 14 seconds to less than 2 seconds, and the operation steps can be completed from more than 10 steps to 3 steps, making the user experience smoother.

terminal direct connection: enable multi-device interconnection and self-

Breaking through the Wi-Fi802.11 protocol stack limitation, the device can be directly connected at will, the number of direct links is more than 4, support multi-point to multi-point, the projection delay is reduced to less than 35 seconds, and the full channel frequency hopping technology is adopted to resist interference , Monitor the quality of the air interface in real time during the communication process, and automatically select the optimal channel to use. For example, mobile phone cameras, sports cameras, and drone cameras can perform multi-camera shooting through multi-terminal direct connections. One person can easily operate multiple devices, saving time and cost while lowering the entry barrier for the media industry.

Low power consumption: Improve the endurance of IoT devices

When traditional Wi-Fi P2P is working, it is continuous and panoramic, and the transmission power consumption is high. The Heterogeneous Intelligent Connection Protocol dynamically adjusts the working state of the module based on the App traffic model, including the fully awake working state, the dormant state, and the half-sleep and half-awake state. In effect, compared with traditional Wi-Fi transmission, the heterogeneous intelligent connection protocol reduces the power consumption by 40%, and reduces the power consumption by 80% in the standby state. This is very helpful for IoT devices and battery-type sports cameras to avoid shooting for 3 minutes and half an hour.

far-field communication: enable free connection between far-field 1+8+N devices

One mobile phone is connected to multiple devices, which can be applied to scenarios such as far-field printing, file sharing, and home security. The low-cost far-field P2P capability ensures easy end-to-end connection of users, provides stable multi-network transmission, with a delay of less than 100 milliseconds and a penetration rate of 80%.

Heterogeneous intelligent connection modules support Android, Hongmeng, Windows, Linux multiple systems; compatible with multiple interfaces, adapt to smart phones, Wintel PC devices and IoT rich media devices to meet the needs of various categories. This is not only a simple functional module, but also a different experience for the 1+8+N ecosystem.

Currently, we provide end-to-end heterogeneous intelligent connection module solutions. At the same time, Huawei Communications is fully connected to OpenLAB, providing Wi-Fi, Bluetooth, NFC open platforms and professional empowerment to partners across the industry to jointly enhance consumers' interconnection experience. Looking forward to communicating with the developers again, thank you!

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