Selection of channel coding and multidimensional interleaving schemes for improved performance
First Claim
Patent Images
1. A method for communicating blocks of data over a radio interface using multiple antennas, each antenna being associated with at least one corresponding radio channel and each data block including multiple data units, comprising:
- determining one or more characteristics of the radio channels associated with the multiple antennas;
determining one or more diversity conditions of the radio channels based on one or more of the radio channel characteristics;
based on the determined one or more radio channel characteristics, selecting one of plural channel coding schemes to code a data block;
coding the data block using the selected channel coding scheme;
based on the determined one or more diversity conditions, selecting one of plural multi-dimensional interleaving schemes; and
allocating data units from the coded block over one or more of the multiple transmit antennas using the selected multi-dimensional interleaving scheme; and
wherein the selected channel coding scheme and interleaving scheme are selected to optimize a performance of the data block transmission for the determined one or more radio channel characteristics and the one or more diversity conditions,wherein for a higher quality radio channel characteristic, a higher rate channel coding, and a lower diversity condition between radio channels across the multiple antennas, selecting a multi-dimensional interleaving scheme that interleaves the data units for one block over the multiple antennas for space-diversity transmission.
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Abstract
One or more radio characteristics are considered to determine selection of one or more of the following: interleaving scheme, channel coding scheme, modulation scheme, and/or transmission scheme. Accounting for these factors and interdependencies improves performance in a mobile radio communications system. One example performance measure is throughput over the radio interface.
29 Citations
44 Claims
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1. A method for communicating blocks of data over a radio interface using multiple antennas, each antenna being associated with at least one corresponding radio channel and each data block including multiple data units, comprising:
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determining one or more characteristics of the radio channels associated with the multiple antennas; determining one or more diversity conditions of the radio channels based on one or more of the radio channel characteristics; based on the determined one or more radio channel characteristics, selecting one of plural channel coding schemes to code a data block; coding the data block using the selected channel coding scheme; based on the determined one or more diversity conditions, selecting one of plural multi-dimensional interleaving schemes; and allocating data units from the coded block over one or more of the multiple transmit antennas using the selected multi-dimensional interleaving scheme; and wherein the selected channel coding scheme and interleaving scheme are selected to optimize a performance of the data block transmission for the determined one or more radio channel characteristics and the one or more diversity conditions, wherein for a higher quality radio channel characteristic, a higher rate channel coding, and a lower diversity condition between radio channels across the multiple antennas, selecting a multi-dimensional interleaving scheme that interleaves the data units for one block over the multiple antennas for space-diversity transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A radio node for communicating blocks of data over a radio interface, comprising:
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radio circuitry; multiple antennas coupled to the radio circuitry, each antenna being associated with at least one corresponding radio channel and each data block including multiple data units; and processing circuitry configured to; determine one or more characteristics of the radio channels associated with the multiple antennas; determine one or more diversity conditions of the radio channels; based on the determined one or more radio channel characteristics, select one of plural channel coding schemes to code a data block; based on the determined one or more diversity conditions, select one of plural multi-dimensional interleaving schemes to allocate data units from the coded block over one or more of the multiple transmit antennas, wherein the processing circuitry is configured to select the channel coding scheme and the interleaving scheme to optimize a performance of the data block transmission for the determined one or more radio channel characteristics and the determined one or more diversity conditions, wherein for a higher quality radio channel characteristic, a higher rate channel coding, and a lower diversity condition between radio channels across the multiple antennas, the processing circuitry is configured to select a multi-dimensional interleaving scheme that interleaves the data units for one block over the multiple antennas for space-diversity transmissions. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A radio node for communicating blocks of data over a radio interface, comprising:
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radio circuitry; multiple antennas coupled to the radio circuitry, each antenna being associated with at least one corresponding radio channel and each data block including multiple data units; and processing circuitry configured to; determine one or more characteristics of the radio channels associated with the multiple antennas; determine one or more diversity conditions of the radio channels; based on the determined one or more radio channel characteristics, select one of plural channel coding schemes to code a data block; based on the determined one or more diversity conditions, select one of plural multi-dimensional interleaving schemes to allocate data units from the coded block over one or more of the multiple transmit antennas, wherein the processing circuitry is configured to select the channel coding scheme and the interleaving scheme to optimize a performance of the data block transmission for the determined one or more radio channel characteristics and the determined one or more diversity conditions, wherein for a higher quality radio channel characteristic, higher rate channel coding, and lower diversity condition between radio channels over time, the processing circuitry is configured to select a multi-dimensional interleaving scheme that interleaves data units for a first block over one of the multiple antennas for time-diversity transmission for the first block and data units for a second block over another of the multiple antennas for time-diversity transmission for the second block.
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Specification