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US 2011/0235619 A1Published application
Enhanced frequency diversity technique for systems with carrier aggregation
AssigneeNtt Docomo, Inc.
InventorsChia-Chin Chong, Hlaing Minn
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Abstract
A technique is provided to interleave data and control signals across a plurality of component carriers to achieve frequency diversity in conjunction with carrier aggregation.
Claims20
A method, comprising:
- providing a plurality of transport blocks, each transport block corresponding to a component carrier (CC) such that a plurality of component carriers corresponds to the plurality of transport blocks;
- in a baseband processor, channel coding a data portion of each transport block into a corresponding channel-coded input data signal;
- in the baseband processor, bit-combining the channel-coded input data signals into a bit-combined data signal;
- and
- in the baseband processor, interleaving the bit-combined data signal to produce an interleaved plurality of code words corresponding to the plurality of component carriers.
2 more elements
A downlink method, comprising
- determining whether a plurality of component carriers are being interleaved;
- if a plurality of component carriers are being interleaved, bit-combining a plurality of channel-coded data signals to form a bit-combined data signal;
- writing the bit-combined data signal into an interleaver matrix stored within a memory, wherein the interleaver matrix is arranged into a plurality of sub-matrices corresponding to the plurality of component carriers;
- reading from each sub-matrix to retrieve a corresponding output code word;
- and
- modulating each component carrier according to the corresponding output code word.
3 more elements
A wireless device, comprising:
- a memory;
- a baseband processor configured to channel code a plurality transport blocks data portions into a corresponding plurality of channel-coded data signals, bit-combine the channel-coded data signals into a bit-combined data signal, write the bit-combined data signal into an interleaver matrix stored within the memory, and to read from the interleaver matrix to produce an interleaved plurality of code words;
- and
- a radio-frequency integrated circuit (RFIC) configured to modulate an RF carrier signal according to the interleaved plurality of code words.
1 more element
Dependencies are inferred from the claim text.