Tone-phase-shift keying: a new modulation scheme for sc-fdma
AssigneeQUALCOMM Incorporated
InventorsXiao feng WANG, Junyi LI, Zhi-Zhong YU
Life of this patent
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Abstract
A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
Claims32
A method of wireless communication, comprising:
- determining, by a user equipment (UE), an allocation of a set of tones in a symbol for conveying data;
- determining, by the UE, to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones;
- and
- modulating, by the UE, the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
A method of wireless communication, comprising:
- receiving a data transmission from a user equipment (UE);
- detecting a subset of tones having maximal energy of an allocated set of tones in a symbol;
- and
- demodulating each tone of the subset of tones to determine data based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
An apparatus for wireless communication, comprising:
- means for determining an allocation of a set of tones in a symbol for conveying data;
- means for determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones;
- and
- means for modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
An apparatus for wireless communication, comprising:
- means for receiving a data transmission from a user equipment (UE);
- means for detecting a subset of tones having maximal energy of an allocated set of tones in a symbol;
- and
- means for demodulating each tone of the subset of tones to determine data based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
A system comprising:
- a user equipment (UE) having a memory and at least one processor coupled to the memory, the processor configured to:
- determine an allocation of a set of tones in a symbol for conveying data;
- determine to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones;
- and
- modulate the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other;
- and
- a base station having a memory and at least one processor coupled to the memory, the processor configured to:
- receiving a data transmission from the UE;
- detect a subset of tones having maximal energy of an allocated set of tones in a symbol;
- and
- demodulate each tone of the subset of tones to determine data based on the mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
Dependencies are inferred from the claim text.