Method to handle problematic patterns in a low latency multimedia streaming environment

One or more computer-readable mediums having stored thereon executable instructions, which, when executed by one or more processors configure a computer system to performing at least the following steps for buffer load management in a communication device comprising a receiver:

• store in a first buffer of said receiver of said communication device, streamed multimedia data comprised in data packets and received via a transport link at an input rate;
• determine an indication of the input rate of said transport link at said first buffer and storing said indication in a second buffer containing information on the input rate over time;
• perform an autocorrelation analysis on a first signal comprising samples of said information on the input rate over time, taken from said second buffer, to form an autocorrelation signal;
• find peaks in said autocorrelation signal and identifying, for at least one peak of the found peaks, a period of an event giving rise to said at least one peak;
• perform, for said at least one peak, a cross correlation of said first signal with a second periodic signal with given phase having said identified period as predominant period and determining a phase offset with respect to said second periodic signal;
• select, based on the determined phase offset, one or more parts of said information on the input rate stored in said second buffer, using a reference signal being periodic with said identified period as predominant period and having said determined phase offset;
• determine an amount of streamed multimedia data to be stored in said first buffer by analysing said selected parts of information from said second buffer;
• and
• apply said amount of streamed multimedia data to be stored to said first buffer by modifying the output rate and/or the input rate of said first buffer.

A communication device comprising:

• an input and an output for receiving and outputting streamed multimedia data comprised in data packets;
• a first buffer for storing said data packets received via a transport link at an input rate;
• a second buffer for storing an indication of the input rate of said transport link;
• a controller circuit configured to control the output rate of said first buffer;
• a processor arranged to:
• store in the first buffer the streamed multimedia data,
• determine an indication of the input rate of said transport link at said first buffer and store said indication in the second buffer,
• perform an autocorrelation analysis on a first signal comprising samples of said information on the input rate over time, taken from said second buffer, to form an autocorrelation signal,
• find peaks in said autocorrelation signal and identify, for at least one peak of the found peaks, a period of an event giving rise to said at least one peak,
• perform, for said at least one peak, a cross correlation of said first signal with a second periodic signal with given phase having said identified period as predominant period and determine a phase offset with respect to said second periodic signal,
• select, based on the determined offset, one or more parts of said information on the input rate stored in said second buffer, using a reference signal being periodic with said identified period as predominant period and having said determined phase offset,
• determine an amount of streamed multimedia data to be stored in said first buffer by analysing said selected parts of information from said second buffer, and
• apply said amount of streamed multimedia data to be stored to said first buffer by modifying the output rate and/or the input rate of said first buffer.