| 摘要 |
A multimedia multicast-broadcast coverage capability is disclosed. The multimedia multicast-broadcast coverage capability is configured to provide wireless service coverage for multimedia multicast-broadcast services within an intended service coverage area including a plurality of wireless service regions. The wireless service coverage may be provided using properties of scalable video coding, where, for a given content item, different encoded layers of the content item are appropriately propagated to all or part of the intended coverage area. In one embodiment, a base encoded layer and one or more higher encoded layers, for providing basic and incrementally better quality versions of the content item, are appropriately propagated toward respective sets of the wireless service regions of the intended coverage area. In one embodiment, multiple encoded layers of lower quality are formed, from a content item of higher quality, and propagated toward each of the wireless service regions of the intended coverage area.
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