sentences:  qWAVE uses different packet priority schemes for real-time flows (such as multimedia packets) and best-effort flows (such as file downloads or e-mails) to ensure that real time data gets delayed as little as possible, while providing a high quality channel for other data packets.qWAVE-enabled applications together with devices that implement the LLTD QoS Extensions aim to improve an end user's experience of streaming video by prioritizing traffic and reducing the effects of network-related transient issues.Windows Connect Now (WCN) is the name of Windows Rally technologies aimed for simpler wireless device configuration.