Staggered pilot placement
AssigneeQUALCOMM Incorporated
InventorsSeyong Park, Wei Zeng, Joseph Binamira Soriaga, Jing Jiang, Tingfang Ji
Life of this patent
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Abstract
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a plurality of combined signals. Each combined signal may be on a tone of a plurality of tones. The apparatus may be configured to determine a first pilot signal on a first tone of the plurality of tones. The apparatus may be configured to generate an interference-reduced signal for the first tone by canceling the determined first pilot signal from a first combined signal on the first tone.
Claims24
An apparatus for wireless communication, comprising:
- a processing system configured to:
- map, at a first user equipment (UE), a first set of pilot symbols and a first set of data symbols to a plurality of tones, each pilot symbol in the first set of pilot symbols being mapped on a tone that is used by a second UE to carry a data symbol, at least one pilot symbol in the first set of pilot symbols overlapping in time on the tone that is used by the second UE to carry the data symbol;
- and
- provide the mapped first set of pilot symbols and the mapped first set of data symbols for transmission over the plurality of tones, wherein the first set of pilot symbols are transmitted on tones shifted by a cyclic shift from a second set of pilot symbols that is concurrently transmitted by the second UE.
A method for wireless communication, comprising:
- mapping, at a first user equipment (UE), a first set of pilot symbols and a first set of data symbols to a plurality of tones, each pilot symbol in the first set of pilot symbols being mapped on a tone that is used by a second UE to carry a data symbol, wherein at least one pilot symbol in the first set of pilot symbols is overlapping in time on the tone that is used by the second UE to carry the data symbol;
- and
- providing the mapped first set of pilot symbols and the mapped first set of data symbols for transmission over the plurality of tones, the first set of pilot symbols are transmitted on tones shifted by a cyclic shift from a second set of pilot symbols that is concurrently transmitted by the second UE.
An apparatus for wireless communication, comprising:
- means for mapping, at a first user equipment (UE), a first set of pilot symbols and a first set of data symbols to a plurality of tones, each pilot symbol in the first set of pilot symbols being mapped on a tone that is used by a second UE to carry a data symbol, at least one pilot symbol in the first set of pilot symbols overlapping in time on the tone that is used by the second UE to carry the data symbol;
- and
- means for providing the mapped first set of pilot symbols and the mapped first set of data symbols for transmission over the plurality of tones, wherein the first set of pilot symbols are transmitted on tones shifted by a cyclic shift from a second set of pilot symbols that is concurrently transmitted by the second UE.
A non-transitory computer-readable medium storing computer-executable code for wireless communication by an apparatus, comprising code to:
- map, at a first user equipment (UE), a first set of pilot symbols and a first set of data symbols to a plurality of tones, each pilot symbol in the first set of pilot symbols being mapped on a tone that is used by a second UE to carry a data symbol, at least one pilot symbol in the first set of pilot symbols overlapping in time on the tone that is used by the second UE to carry the data symbol;
- and
- provide the mapped first set of pilot symbols and the mapped first set of data symbols for transmission over the plurality of tones, wherein the first set of pilot symbols are transmitted on tones shifted by a cyclic shift from a second set of pilot symbols that is concurrently transmitted by the second UE.
Dependencies are inferred from the claim text.