METHOD AND DEVICE FOR CONTINUOUS ADAPTATION OF CODING PARAMETERS TO A VARIABLE USER-DATA RATE
First Claim
1. A method for the continuous automatic adaptation of coding parameters to a variable user-data rate of a datastream composed of data frames, comprising:
- buffering, in a data buffer, data packets received and associated with individual services for mobile receivers and an ensemble associated with the respective service;
determining, on the basis of the data packets buffered in the data buffer, the transmission requirement of the respective ensemble for the next data frame in the datastream to be configured;
determining optimized coding parameters for the respective ensemble in the next data frame to be transmitted dependent upon the transmission requirement determined for the respective un-coded ensemble in the next data frame to be transmitted and the transmission capacity provided for the respective coded ensemble in the next data frame to be transmitted.
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Abstract
A method and a device for continuous adaptation of coding parameters to a variable user-data rate of a datastream composed of data frames. Data packets and ensembles are received and associated with services for mobile receivers. The transmission requirement of the next ensemble is determined based on the buffered data packets. Optimized coding parameters for the ensemble in the next data frame are then determined based on certain factors, such as the transmission requirement for the uncoded ensemble and the determined transmission capacity.
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Citations
13 Claims
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1. A method for the continuous automatic adaptation of coding parameters to a variable user-data rate of a datastream composed of data frames, comprising:
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buffering, in a data buffer, data packets received and associated with individual services for mobile receivers and an ensemble associated with the respective service; determining, on the basis of the data packets buffered in the data buffer, the transmission requirement of the respective ensemble for the next data frame in the datastream to be configured; determining optimized coding parameters for the respective ensemble in the next data frame to be transmitted dependent upon the transmission requirement determined for the respective un-coded ensemble in the next data frame to be transmitted and the transmission capacity provided for the respective coded ensemble in the next data frame to be transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13)
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9. A device for continuous adaptation of coding parameters to a variable user-data rate of a datastream composed of data frames with a number of data buffers corresponding to the number of mobile services for the buffering of data packets to be transmitted for the respective mobile service,
a control unit for monitoring the data packets buffered in the individual data buffers and for determining the number of timeslots of the next data frame to be transmitted for every ensemble composed of data packets of at least one mobile service and the coding parameter associated with the respective ensemble, a processing unit for generating the data associated with the individual timeslots of the next data frame to be transmitted from the data packets buffered in the individual data buffers and a multiplexer for generating a datastream with successive data frames from the timeslots filled with data.
Specification