Methods and communication apparatuses for bit-to-symbol mapping
AssigneeNtt Docomo, Inc.
InventorsNeng YE, Dongbo FENG, Xiangming LI, Wenjia LIU, Xiaolin HOU, Qin MU, Liu LIU
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Abstract
Methods and communication apparatuses are presented for bit-to-symbol mapping. The method for bit-to-symbol mapping according to one example of the present invention includes: obtaining a plurality of base constellation maps; and mapping an input bit sequence by using the plurality of base constellation maps to generate symbols to be transmitted
Claims18
1-10. (canceled)
A terminal comprising:
- an obtaining unit configured to obtain a plurality of base constellation maps;
- a mapping unit configured to map an input bit sequence by using the plurality of base constellation maps to generate symbols to be transmitted.
A terminal comprising:
- a determining unit configured to determine priority of data in an input bit sequence;
- and
- a mapping unit configured to map the input bit sequence by using a constellation map according to the determined priority and reliability of respective sub-channels included in one symbol to generate symbols to be transmitted.
The terminal of 14, wherein the mapping unit is configured to map data with a high priority in the input bit sequence to a sub-channel with a high reliability in the symbol, and map data with a low priority in the input bit sequence to a sub-channel with a low reliability in the symbol.
The terminal of 14, wherein
- a specific sub-channel of the plurality of sub-channels has a plurality of values;
- a pattern of a first constellation map formed by remaining sub-channels obtained by deleting the specific sub-channel from the symbol when a value of the specific sub-channel is one value of the plurality of values is the same as a pattern of a second constellation map formed by remaining sub-channels obtained by deleting the specific sub-channel from the symbol when a value of the specific sub-channel is another value of the plurality of values.
A base station comprising:
- an obtaining unit configured to obtain a plurality of base constellation maps;
- a mapping unit configured to map an input bit sequence by using the plurality of base constellation maps to generate symbols to be transmitted.
Dependencies are inferred from the claim text.