They aren't enforced with strict bitrate limits on the existing unlimited plans. For this new plan, there are explicitly stated bitrate limits for audio and video content.
Sprint does video optimization on existing unlimited plans. See the Terms & Conditions: https://sprint.com/legal/open_internet_information.html
Does Sprint employ any type of data compression or optimization on the Sprint network today?
Yes, Sprint deploys network optimization capabilities for video and web traffic on the Sprint Wireless Network. Intent is to improve overall user experience and increase network efficiency. Optimization helps improve page load times and reduces video stalling. The optimization technology provides for the elimination of wasted data transmissions that result from lack of coordination between applications, network, and device, for example stopping transmission of video after a customer has stopped viewing it. It also matches media transmission quality to the capability of the device viewing the media.
What specific types of optimization does Sprint employ?
Video optimization is deployed for RTSP and HTTP video traffic and all HTTP web traffic. Video optimization is always deployed and active on the Sprint network for all identifiable video traffic. Although the purpose of the optimization techniques is to improve overall video viewing experience, it is possible that some users may experience minor discernable reductions in image quality when viewing video traffic on certain devices. These reductions should generally be offset by improvement s in load times and reductions in video stalling and other experience improvements. Sprint’s video optimization uses four basic technologies:
Video Delivery Synchronization: Delivers video "just in time" to the mobile device. Intent is to eliminate network waste associated with transmitting video that isn't watched.
Quality Aware Transcoding: Matches video quality with network conditions in real time. Optimizes video for the bandwidth available to the user. Intent is to minimize or eliminate annoying video stalling. Similar in concept to the optimization techniques already employed by sites using adaptive streaming.
Video Transcoding: Transcodes video with intent to optimize the video experience for the user while efficiently using network bandwidth. Provides for the elimination of video waste using techniques like replacing less efficient video codecs with more efficient ones. Optimizes video for the mobile device the customer is using.
Intelligent Caching: Caches optimized video in the network with the intent of eliminating delay associated with internet video sites.
Some streaming video applications employ adaptive bitrate protocol to stream video. These applications automatically and continuously monitor the available bandwidth and adjust the streaming video bitrate to current user conditions. Depending on available bandwidth, users may notice differences in video streaming quality as the application adjusts the video streaming bitrate to account for changing channel conditions.
What specific types of web optimization does Sprint employ?
Web optimization is deployed for all HTTP web traffic and is always deployed and active on the Sprint network for all identifiable web traffic. Although the purpose of the optimization techniques is to improve overall web viewing experience, it is possible that some users may experience minor discernable reductions in image quality when viewing web traffic on certain devices. These reductions should generally be offset by improvement s in load times and other experience improvements. Web optimization uses three basic technologies:
Caching: Caches web pages to help avoid delays associated with retrieval of the same internet content multiple times.
Text/Binary Compression: Lossless compression of data and binary files using standard compression techniques supported by HTTP-compliant browsers.
Image Compression: JPEG and GIF compression designed to reduce the size of images while maintaining no user perceptible loss of quality