Channel condition dependent scheduling
AssigneeFreescale Semiconductor, Inc.
InventorsBo Lin, Wim Rouwet
Life of this patent
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Abstract
An apparatus for data traffic scheduling comprises a scheduler assigning at least one priority parameter value prioritising usage of a communication resource comprising a plurality of logical channels, to each of a plurality of users of the communication resource, a channel analyser providing at least one channel condition indicator for each logical channel, and a filter providing a scheduling parameter value for each logical channel to the scheduler determining the priority parameter value, the scheduling parameter value being a weighted average of a plurality of values of the at least one channel condition indicator.
Claims25
An apparatus for data traffic scheduling, comprising:
- a scheduler assigning at least one priority parameter value prioritising usage of a communication resource comprising a plurality of logical channels, to each of a plurality of users of said communication resource;
- a channel analyser providing at least one channel condition indicator for each logical channel;
- and
- a filter providing a scheduling parameter value for each logical channel to said scheduler determining said priority parameter value, said scheduling parameter value being a weighted average of a plurality of values of said at least one channel condition indicator, wherein said channel condition indicator is a ratio of a signal power to a noise power SNR on said logical channel, said scheduling parameter is a weighted average SNR, and at least two of said users are configured to transmit data over said logical channels using different modulation and/or coding schemes.
A method for data traffic scheduling, comprising
- analysing a logical channel of a communication resource,
- providing at least one channel condition indicator for said channel to a filter;
- determining a scheduling parameter value for said logical channel using said filter, said scheduling parameter value being a weighted average of a plurality of values of said at least one channel condition indicator;
- providing said scheduling parameter value to a scheduler,
- determining at least one priority parameter value prioritising usage of said communication resource using said scheduler, and
- providing said priority parameter value to a user of said logical channel of said communication resource, wherein said channel condition indicator is a ratio of a signal power to a noise power SNR on said logical channel, and said scheduling parameter is a weighted average SNR and at least two of said users transmit data over said logical channels using different modulation and/or coding schemes.
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Dependencies are inferred from the claim text.