In a Huawei SVC (Scalable Video Coding) intelligent forwarding conference, the Multipoint Control Unit (MCU) sends a multi-layered video stream. Each participant's endpoint receives a stream tailored to its capabilities and network conditions. To receive the 1080p resolution layer, the participant's terminal must have a minimum available downstream bandwidth of 2048 kbps, which is equivalent to 2 Mbit/s. If the available bandwidth is lower, the MCU will intelligently forward a lower-resolution stream (e.g., 720p or 360p) to ensure a smooth and continuous video experience, thereby preventing packet loss and freezing.

1. Huawei. (2022). HCIP-Video Conference V4.0 Training Material. Section: SVC Technology Principles

Subsection: SVC Conference Bandwidth Model.

2. Huawei. (2021). CloudLink MCU Product Documentation. Section: Conference Management > SVC Conferences

Table: Bandwidth and Resolution Mapping. (Note: Specific document version may vary

but this information is standard across recent releases like V600R019).

3. Schwarz

H.

Marpe

D.

& Wiegand

T. (2007). Overview of the Scalable Video Coding (SVC) Extension of the H.264/AVC Standard. IEEE Transactions on Circuits and Systems for Video Technology

17(9)

1103–1120. https://doi.org/10.1109/TCSVT.2007.905532 (This paper provides the foundational principles of SVC

where different spatial layers

such as 1080p

require specific bitrate levels

aligning with the vendor's implementation of a ~2 Mbit/s requirement for that layer).