US 9,756,102 B2Granted

Request cancellation method for media streaming

AssigneeQUALCOMM Incorporated

InventorsYinian Mao, Fatih Ulupinar, Arvind Subramanian Krishna

Life of this patent

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Abstract

In overview, the various embodiments provide methods implemented by a processor executing a DASH client on a receiver device for determining when, in view of a change in the receiver device's resources (e.g., bandwidth, battery power, etc.), to cancel or abandon downloading the current segment at the current representation and restart download of the current segment at a different representation to meet one or more performance objectives and/or optimizations related to the change in the receiver device's resources. In various embodiments, the receiver device processor may perform a cost-benefit analysis to determine whether switching representations during the ongoing download of the current segment will benefit the performance of the receiver device, and the receiver device processor may switch representations in response to determining that switching representations would improve the performance of the receiver device.

Claims24

Dependent claims

A method of determining on a receiver device whether to cancel an ongoing download of a current segment of content at a current representation and to switch to another representation of the current segment in response to recognizing a switching situation, comprising:

selecting another representation of the current segment in response to recognizing the switching situation during the ongoing download of the current segment at the current representation, wherein the switching situation comprises a change in operation or resources of the receiver device that affects one or more performance objectives of the receiver device;
determining a cost of switching from the current segment at the current representation to the current segment at the selected representation, wherein the cost of switching comprises at least one of time or receiver device resources that are consumed in order to switch to the current segment at the selected representation, wherein determining the cost of switching from the current representation of the current segment to the selected representation of the current segment comprises:
determining a cost of cancelling the ongoing download of the current segment at the current representation;
determining a cost of re-downloading the current segment at the selected representation;
and
calculating a total cost based on the cost of cancelling the ongoing download of the current segment at the current representation and the cost of re-downloading the current segment at the selected representation;
determining whether the cost of switching from the current segment at the current representation to the current segment at the selected representation exceeds a cost threshold based on the switching situation;
cancelling the ongoing download of the current segment at the current representation and re-downloading the current segment at the selected representation in response to determining that the cost of switching does not exceed the cost threshold;
and
continuing the ongoing download of the current segment at the current representation in response to determining that the cost of switching exceeds the cost threshold.

7 more elements

A receiver device, comprising:

a memory;
and
a processor coupled to the memory and configured with processor-executable instructions to perform operations comprising:
selecting another representation of a current segment of content in response to recognizing a switching situation during an ongoing download of the current segment at a current representation, wherein the switching situation comprises a change in operation or resources of the receiver device that affects one or more performance objectives of the receiver device;
determining a cost of switching from the current segment at the current representation to the selected representation, wherein the cost of switching comprises at least one of time or receiver device resources that are consumed in order to switch to the current segment at the selected representation, wherein determining the cost of switching from the current representation of the current segment to the selected representation of the current segment comprises:
determining a cost of cancelling the ongoing download of the current segment at the current representation;
determining a cost of re-downloading the current segment at the selected representation;
and
calculating a total cost based on the cost of the cost of cancelling the ongoing download of the current segment at the current representation and the cost of re-downloading the current segment at the selected representation of the current segment;
determining whether the cost of switching from the current segment at the current representation to the current segment at the selected representation exceeds a cost threshold based on the switching situation;
cancelling an ongoing download of the current segment at the current representation and re-downloading the current segment at the selected representation in response to determining that the cost of switching does not exceed the cost threshold;
and
continuing the ongoing download of the current segment at the current representation in response to determining that the cost of switching exceeds the cost threshold.

10 more elements

A receiver device, comprising:

means for selecting another representation of a current segment of content in response to recognizing a switching situation during an ongoing download of the current segment at a current representation, wherein the switching situation comprises a change in operation or resources of the receiver device that affects one or more performance objectives of the receiver device;
means for determining a cost of switching from the current segment at the current representation to the current segment at the selected representation, wherein the cost of switching comprises at least one of time or receiver device resources that are consumed in order to switch to the current segment at the selected representation, wherein means for determining the cost of switching from the current representation of the current segment to the selected representation of the current segment comprises:
means for determining a cost of cancelling the ongoing download of the current segment at the current representation;
means for determining a cost of re-downloading the current segment at the selected representation;
and
means for calculating a total cost based on the cost of cancelling the ongoing download of current segment at the current representation and the cost of re-downloading the current segment at the selected representation;
means for determining whether the cost of switching from the current segment at the current representation to the current segment at the selected representation exceeds a cost threshold based on the switching situation;
means for cancelling the ongoing download of the current segment at the current representation and re-downloading the current segment at the selected representation in response to determining that the cost of switching does not exceed the cost threshold;
and
means for continuing the ongoing download of the current segment at the current representation in response to determining that the cost of switching exceeds the cost threshold.

7 more elements

A non-transitory processor-readable storage medium having stored thereon processor-executable instructions configured to cause a receiver device processor to perform operations comprising:

selecting another representation of a current segment of content in response to recognizing a switching situation during an ongoing download of the current segment at a current representation, wherein the switching situation comprises a change in operation or resources of the receiver device that affects one or more performance objectives of the receiver device;
determining a cost of switching from the current segment at the current representation to the current segment at the selected representation, wherein the cost of switching comprises at least one of time or receiver device resources that are consumed in order to switch to the current segment at the selected representation, wherein determining the cost of switching from the current representation of the current segment to the selected representation of the current segment comprises:
determining a cost of cancelling the ongoing download of the current segment at the current representation;
determining a cost of re-downloading the current segment at the selected representation;
and
calculating a total cost based on the cost of cancelling the ongoing download of the current segment at the current representation and the cost of re-downloading the current segment at the selected representation;
determining whether the cost of switching from the current segment at the current representation to the current segment at the selected representation exceeds a cost threshold based on the switching situation;
cancelling the ongoing download of the current segment at the current representation and re-downloading the current segment at the selected representation in response to determining that the cost of switching does not exceed the cost threshold;
and
continuing the ongoing download of the current segment at the current representation in response to determining that the cost of switching exceeds the cost threshold.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/047,061Filed 7 Oct 2013
Published: US 2015/0100701 A19 Apr 2015
Granted: 5 Sep 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04L 65/60
Network arrangements, protocols or services for supporting real-time applications in data packet communication: network streaming of media packets
H04L 65/1069
Session management: session establishment or de-establishment
H04L 65/612
For supporting one-way streaming services, e.g. Internet radio: for unicast
H04L 65/613
For supporting one-way streaming services, e.g. Internet radio: for the control of the source by the destination