Mobile phone video Call bandwidth requirements

Many mobile phone audio and video applications in the market, but the need for network bandwidth is not the same, if the high bandwidth, mobile phone video 3G network is a bit miserable.

At present, there are four main types of network: ADSL dial access, optical fiber access, 3G dial-up access, LAN.

ADSL Dial access mode is an asymmetric network access, downstream traffic usually has 2Mbps, 4Mbps, 6Mbps, and upstream traffic is usually 512kbps, that is, the upstream rate and downlink rate is asymmetric. If you need to use Anychat for audio and video interaction, upload traffic can only use 512kbps as the reference value, the appropriate resolution is: QVGA (), CIF (352x288), VGA (640x480).

Fiber access is a symmetric network access, usually the same upstream rate and downlink rate. Fiber access networks are usually very stable, suitable for transmitting higher quality video, when the network bandwidth allows, the appropriate resolution is: QVGA (352x288), VGA (640x480), SVGA (800x600), 720P (1280x720).

3G Dial-up access is also an asymmetric network access, different network operators provide a variety of network bandwidth, and ADSL as upstream network bandwidth is much lower than the downlink network bandwidth, such as Unicom's 3G propaganda 7.2Mbps network bandwidth refers to the downlink bandwidth, and 3G of network bandwidth quality and location-related, such as the closer to the signal base station, the better the quality, the same base station using 3G users less, the better the quality. In this mode of access, the resolution for uploading is: QVGA (+/-), CIF (352x288).

LAN, or special network network bandwidth is very abundant, choose how much resolution is mainly based on the performance of the PC to decide, usually LAN can choose CIF (352x288), VGA (640x480), SVGA (800x600), 720P (1280x720) and other resolutions.

Here's a look at the video bandwidth requirements for the Anychat platform that was previously exposed:

Anychat Quality mode resolution, bitrate table (unit: Kbps)

	The		352x288		640x480		800x600		1280x720
	12fps	25fps	12fps	25fps	12fps	25fps	12fps	25fps	12fps	25fps
Static	20	40	60	70	100	130	160	180	350	380
Motion	150	200	210	250	400	450	550	650	850	900
Avg	80	120	150	180	200	230	300	350	450	550

static- static picture, motion- motion image Peak, agv- average bitrate

About the frame rate of the video, the higher the frame rate, the smoother the video, while the pressure on the network will also increase, the output of the code rate will be increased, usually, the fiber access mode, LAN and other network bandwidth more abundant occasions can use high frame rate, such as 20fps, 25fps, and ADSL dial-up access and 3G dial-up access to the use of low frame rate is more appropriate, such as 8fps, 12fps and so on.

Mobile phone video Call bandwidth requirements