Method and Apparatus For Optimizing Flow Control Over Wlans
AssigneeKoninklijke Philips Electronics N.V.
InventorsKiran S. Challapali, Lluis Llavina Serra
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Abstract
A method and apparatus for determining a period for transmitting a video stream comprising a plurality of base layers (110) and corresponding enhancement layers (115) is disclosed. The method comprises the steps of obtaining a measure of channel condition, transmitting each of said base layers (110) for a predetermined time period and transmitting a corresponding enhancement layer (115) for a period determined based on said measure of channel condition and said base layer time period. In one aspect of the invention, the base layer time period and the enhancement layer period are less than a critical time period.
Claims24
A method for substantially maximizing picture quality in a video stream transmitted in packets in at least one base layer (105) and at least one enhancement layer (115), said method comprising the steps of:
- transmitting said base layer packets (110) for a predetermined time;
- transmitting said enhancement layer (115) packets for a time period for a said period determined based on a measure of image quality and channel condition.
A method for determining a period for transmitting a video stream comprising a plurality of base layers and corresponding enhancement layers, said method comprising the steps of:
- obtaining a measure of channel condition;
- transmitting each of said base layers (110) for a predetermined time period;
- and
- transmitting a corresponding enhancement layer (115) for a period (d) determined based on said measure of channel and said base layer time period.
11 The method as recited in claim 10, wherein said predetermined values (d11, d12, d22) are obtained by simulation.
An apparatus for determining a period for transmitting a video stream comprising a plurality of base layers (110) and corresponding enhancement layers (115), said apparatus comprising:
- a processor (403) in communication with a memory (404), said processor executing code for:
- obtaining a measure of channel condition;
- transmitting each of said base layers (110) for a predetermined time period;
- and
- transmitting a corresponding enhancement layer (115) for a period determined based on said measure of channel condition and said base layer time period.
Dependencies are inferred from the claim text.