Method for operating a combined multimedia -telecom system

Abstract

Presented is a method of managing the operation of a system including a processing subsystem configured to run a multimedia application and a telecommunication subsystem. The method includes determining telecom environment conditions, and selecting a working point from a plurality of predetermined working points. The selecting is based at least in part on the determined environmental conditions. The method also includes setting control parameters in the multimedia application and/or the telecommunication subsystem to configure the system to operate at the selected working point, and operating the system at the selected working point.

1 . A method of managing the operation of a system comprising a processing subsystem configured to run a multimedia application and a telecommunication subsystem, the method comprising: 
 determining telecom environment conditions;    selecting a working point from a plurality of predetermined working points, wherein the selecting is based at least in part on the determined environmental conditions, the working points having been determined by simultaneously optimizing control parameters of both the multimedia application and the telecommunication subsystem;    setting control parameters in the multimedia application and/or the telecommunication subsystem to configure the system to operate at the selected working point; and    operating the system at the selected working point.    
     
     
         2 . The method of  claim 1 , wherein part of said working points differ in that they correspond to different control parameters to be set on both said multimedia application and said telecommunication subsystem.  
     
     
         3 . The method of  claim 1 , wherein said telecommunication subsystem comprises a single telecom device.  
     
     
         4 . The method of  claim 1 , wherein said telecommunication subsystem comprises a plurality of telecom devices.  
     
     
         5 . The method of  claim 4 , wherein operating said telecommunication subsystem comprises setting control parameters corresponding to said selected working point for each telecom device.  
     
     
         6 . The method of  claim 4 , wherein said telecom environment conditions comprise at least one of path loss and channel frequency selectivity.  
     
     
         7 . The method of  claim 4 , wherein the selecting of a working point comprises solving a scheduling problem.  
     
     
         8 . The method of  claim 7 , wherein the scheduling problem involves scheduling transmission of packets between two or more of the telecom devices, wherein the scheduling takes into account dependencies between packets.  
     
     
         9 . The method of  claim 1 , wherein the telecom environment conditions comprise one or more channel states.  
     
     
         10 . The method of  claim 9 , wherein performance-energy trade-off curves are derived for each of the one or more channel states.  
     
     
         11 . The method of  claim 10 , wherein the performance-energy trade-off curves comprise Pareto-optimal curves.  
     
     
         12 . The method of  claim 10 , wherein energy-per-bit is used as an energy metric in the performance-energy trade-off curves.  
     
     
         13 . The method of  claim 10 , wherein latency is used as a performance metric in the performance-energy trade-off curves.  
     
     
         14 . The method of  claim 10 , wherein a sum of energy consumption of the telecom devices is used as an energy metric in the performance-energy trade-off curves.  
     
     
         15 . The method of  claim 1 , wherein the plurality of predetermined working points define a monotonic, non-convex curve.  
     
     
         16 . The method of  claim 1 , further comprising determining the plurality of predetermined working points.  
     
     
         17 . The method of  claim 16 , wherein determining the plurality of predetermined working points is based on the determined telecom environment conditions.  
     
     
         18 . The method of  claim 1 , further comprising loading the plurality of predetermined working points.  
     
     
         19 . The method of  claim 18 , further comprising adapting the plurality of predetermined working points.  
     
     
         20 . The method of  claim 1 , wherein the plurality of predetermined working points comprises a sleep mode and a working mode of said telecom device.  
     
     
         21 . The method of  claim 1 , wherein said telecommunication subsystem is a wireless telecommunication subsystem.  
     
     
         22 . The method of  claim 1 , wherein the control parameters to be set comprise at least one of controlling modulation order, code rate, transmit power, packet size, quantization parameters, and synchronization video packet size.  
     
     
         23 . The method of  claim 1 , wherein the plurality of predetermined working points corresponds to a discrete set of telecom environment conditions.  
     
     
         24 . The method of  claim 23 , wherein the discrete set of telecom environment conditions is organized per channel state.  
     
     
         25 . The method of  claim 1 , wherein the selecting of a working point comprises solving an optimization problem.  
     
     
         26 . A device operable according to the method of  claim 1 , the device comprising a memory configured to store performance/energy trade-off curves.  
     
     
         27 . A device operable according to the method of  claim 1  wherein the selecting of a working point comprises solving an optimization problem, the device comprising a processor configured to solve the optimization problem, or to determine or adapt the predetermined working points.  
     
     
         28 . A computer readable medium storing a program configured to execute a method of managing the operation of a system comprising a processing subsystem configured to run a multimedia application and a telecommunication subsystem, the method comprising: 
 determining telecom environment conditions;    selecting a working point from a plurality of predetermined working points, wherein the selecting is based at least in part on the determined environmental conditions;    setting control parameters in the multimedia application and/or the telecommunication subsystem, wherein the setting of control parameters is based at least in part on the selected working point; and    operating the system at the selected working point.