Systems, methods, and media for controlling delivery of content
View Patent ↗Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.
1. A system for controlling delivery of content, the system comprising:
processing circuitry configured to:
transmit, to a server, a plurality of requests for blocks of the content;
while at least some of the plurality of requests are still outstanding:
detect a change of a service characteristic of a connection between the system and the server, where the service characteristic is based on a measurement of latency between the system and the server and a measurement of bandwidth of the connection with the server;
determine a preferred number of outstanding requests based upon the service characteristic, wherein the outstanding requests are for blocks of varying sizes; and
cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.
2. The system for controlling delivery of content of claim 1 , wherein determining the preferred number of requests is evaluated using the following expression:
preferred
number
of
requests
=
⌈
t
latency
t
transmission
⌉
+
1
where t latency is a latency and t transmission is a transmission time.
3. The system for controlling delivery of content of claim 2 , wherein the transmission time can be evaluated using the following expression:
t
transmission
=
block
size
bandwidth
where block size is a size of the requests for blocks of content and bandwidth is a bandwidth.
4. The system for controlling delivery of content of claim 1 , wherein the plurality of requests for blocks of content are transmitted using an Open Systems Interconnect (OSI) application-layer protocol.
5. The system for controlling delivery of content of claim 1 , wherein each block of content in the plurality of requested blocks of content is a fragment of a larger content file.
6. The system for controlling delivery of content of claim 1 , wherein the content is streaming content from a live performance.
7. The system for controlling delivery of content of claim 6 , wherein the streaming content is from a live performance.
8. A method for controlling delivery of content, comprising:
transmitting by a device to a server via a connection, a plurality of requests for blocks of content;
while at least some of the plurality of requests are still outstanding;
detecting a change of a service characteristic of a connection between the device and the server, where the service characteristic is based on a measurement of latency between the device and the server and a measurement of bandwidth of the connection with the server;
determining a preferred number of outstanding requests based upon the service characteristic, wherein the outstanding requests are for blocks of varying sizes; and
canceling at least some of the requests from the plurality of that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.
9. The method for controlling delivery of content of claim 8 , wherein determining the preferred number of requests is evaluated using the following expression:
preferred
number
of
requests
=
⌈
t
latency
t
transmission
⌉
+
1
where t latency is a latency and t transmission is a transmission time.
10. The method for controlling delivery of content of claim 9 , wherein the transmission time can be evaluated using the following expression:
t
transmission
=
block
size
bandwidth
where block size is a size of the requests for blocks of content and bandwidth is a bandwidth.
11. The method for controlling delivery of content of claim 8 , wherein the plurality of requests for blocks of content are transmitted using an Open Systems Interconnect (OSI) application-layer protocol.
12. The method for controlling delivery of content of claim 8 , wherein each block of content in the plurality of requested blocks of content is a fragment of a larger content file.
13. The method for controlling delivery of content of claim 8 , wherein the content is streaming content from a live performance.
14. The method for controlling delivery of content of claim 13 , wherein the streaming content is from a live performance.