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US 8,619,896 B2Granted
Method, apparatus and system for transmitting information bits
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaofeng Chen, Yongxia Lv, Yan Cheng
Life of this patent
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Abstract
A method, an apparatus and a system for transmitting information bits are provided. The method for transmitting information bits includes: dividing the information bits to be transmitted into at least two groups; encoding the information bits to be transmitted in each group; modulating the coded bits obtained by the encoding to obtain modulation symbols, in which each modulation symbol is obtained by the modulation of the coded bits in the same group; and mapping and transmitting the modulation symbols. In this way, the receiving end easily reduces the algorithm complexity, thereby ensuring the performance of the receiving end.
Claims9
A system for transmitting information bits, comprising a terminal and a base station in communication with the terminal, wherein
- the terminal comprises a processor and a transmitter:
- the processor is configured to divide information bits to be transmitted into at least two groups, encode the information bits to be transmitted in each group to obtain at least two groups of coded bits, combine the at least two groups of coded bits to obtain a total coded bits sequence, wherein the total coded bit sequence is obtained by dividing the coded bits in each group into N sub-groups according to a predetermined modulation scheme, wherein N is an integer greater than 1, and reordering the sub-groups of the coded bits in each group, and the sub-groups in at least one group of the coded bits are discontinuously distributed in the total coded bits sequence after reordering;
- the processor is configured to modulate the total coded bits sequence to obtain modulation symbols, wherein each modulation symbol is obtained by the modulation of the coded bits in the same group;
- the transmitter is configured to transmit the modulation symbols to the base station;
- and
- the base station comprises a receiver and a processor:
- the base station receiver is configured to receive the modulation symbols transmitted by the terminal;
- and
- the base station processor is configured to demodulate and decode the modulation symbols to obtain the information bits to be transmitted,
- wherein the predetermined modulation scheme comprises:
- in instances where the predetermined modulation scheme is Quaternary Phase Shift Keying (QPSK) modulation, every two coded bits constitute each of the N sub-groups;
- and
- in instances where the predetermined modulation scheme is 16-Quadrature Amplitude Modulation (16QAM), every four coded bits constitute each of the N sub-groups.
10 more elements
An apparatus for transmitting information bits, comprising:
- a grouping unit, configured to divide information bits to be transmitted into n groups, wherein n is an integer greater than 1;
- an encoding unit, configured to encode the information bits to be transmitted in each group divided by the grouping unit to obtain coded bits sequences of the n groups;
- an ordering unit, configured to divide the coded bits sequence of each group obtained by the encoding unit into N sub-groups according to a predetermined modulation scheme, wherein N is an integer greater than 1, and reorder the sub-groups in each group of the coded bits, so that each group of the coded bits is discretely distributed in a total coded bits sequence of the n groups;
- a modulating unit, configured to modulate the total coded bits sequence reordered by the ordering unit to obtain modulation symbols;
- and
- a mapping and transmitting unit, configured to map and transmit the modulation symbols obtained by the modulating unit,
- wherein the predetermined modulation scheme comprises:
- in instances where the predetermined modulation scheme is Quaternary Phase Shift Keying (QPSK) modulation, every two coded bits constitute each of the N sub-groups;
- and
- in instances where the predetermined modulation scheme is 16-Quadrature Amplitude Modulation (16QAM), every four coded bits constitute each of the N sub-groups.
7 more elements
An system for transmitting information bits, comprising a terminal and a base station in communication with the terminal, wherein
- the terminal comprises a processor and a transmitter:
- the processor is configured to divide information bits to be transmitted into n groups, encode the information bits to be transmitted in each group to obtain coded bits sequences of the n groups, divide the coded bits sequence of each group into N sub-groups according to a predetermined modulation scheme, and reorder the sub-groups in each group of the coded bits, so that each group of the coded bits is discretely distributed in a total coded bits sequence of the n groups, wherein n and N are integers greater than 1;
- the processor is configured to modulate the total coded bits sequence reordered to obtain modulation symbols;
- the transmitter is configured to transmit the modulation symbols to the base station;
- and
- the base station comprises a receiver and a processor:
- the base station receiver is configured to receive the modulation symbols transmitted by the terminal;
- and
- the base station processor is configured to demodulate and decode the modulation symbols to obtain the information bits to be transmitted,
- wherein the predetermined modulation scheme comprises:
- in instances where the predetermined modulation scheme is Quaternary Phase Shift Keying (QPSK) modulation, every two coded bits constitute each of the N sub-groups;
- and
- in instances where the predetermined modulation scheme is 16-Quadrature Amplitude Modulation (16QAM), every four coded bits constitute each of the N sub-groups.
10 more elements
Dependencies are inferred from the claim text.