| 摘要 |
<p>The present invention enables the data service provider to design new services based on finer control of the data transmission resources. For example, in the MQLVS system illustrated in Fig. 1, instead of limiting the service changes solely on the basis of the first packet of an MPEG- data unit, the service provider can control the service changes in terms of time clicks, on the basis of the video content as the video scene changes, as traffic conditions vary, and so on. Service can be incorporated with the accounting and/or billing policies of the provider, where customers at the client end pay the provider depending on the quality of services that they desire. The invention can be utilized to increase effective usage of network resources.
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