PEAK-TO-AVERAGE POWER RATIO (PAPR) REDUCTION SCHEME FOR WIRELESS COMMUNICATION
First Claim
1. A method for wireless communication, comprising:
- selecting phases for a plurality of resource blocks based on a metric; and
applying the selected phases to modulation symbols to be sent on the plurality of resource blocks.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for sending a transmission in a manner to reduce peak-to-average power ratio (PAPR) of the transmission are described. A transmitter may select phases for a plurality of resource blocks based on a metric, e.g., PAPR. The transmitter may apply the selected phases to modulation symbols to be sent on the resource blocks. In one design, the transmitter may select one phase for each resource block and may apply the phase to all modulation symbols to be sent on the resource block. In another design, the transmitter may select multiple phases for multiple spatial layers in each resource block, one phase for each spatial layer. The transmitter may then apply each phase to all modulation symbols to be sent on one spatial layer in one resource block. For both designs, the transmitter may generate at least one OFDM symbol or at least one SC-FDMA symbol based on the modulation symbols after applying the selected phases.
73 Citations
38 Claims
-
1. A method for wireless communication, comprising:
-
selecting phases for a plurality of resource blocks based on a metric; and applying the selected phases to modulation symbols to be sent on the plurality of resource blocks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus for wireless communication, comprising:
-
means for selecting phases for a plurality of resource blocks based on a metric; and means for applying the selected phases to modulation symbols to be sent on the plurality of resource blocks. - View Dependent Claims (16, 17, 18, 19, 20)
-
-
21. An apparatus for wireless communication, comprising:
at least one processor configured to select phases for a plurality of resource blocks based on a metric, and to apply the selected phases to modulation symbols to be sent on the plurality of resource blocks. - View Dependent Claims (22, 23, 24, 25, 26)
-
27. A computer program product, comprising:
a computer-readable medium comprising; code for causing at least one computer to select phases for a plurality of resource blocks based on a metric, and code for causing the at least one computer to apply the selected phases to modulation symbols to be sent on the plurality of resource blocks.
-
28. A method for wireless communication, comprising:
-
obtaining received pilot symbols and received data symbols from a plurality of resource blocks, the plurality of resource blocks carrying data symbols and pilot symbols applied with phases selected based on a metric; deriving at least one channel estimate for each set of at least one resource block among the plurality of resource blocks based on received pilot symbols from the set of at least one resource block; and processing received data symbols from each set of at least one resource block based on the at least one channel estimate for the set of at least one resource block. - View Dependent Claims (29, 30, 31, 32)
-
-
33. An apparatus for wireless communication, comprising:
-
means for obtaining received pilot symbols and received data symbols from a plurality of resource blocks, the plurality of resource blocks carrying data symbols and pilot symbols applied with phases selected based on a metric; means for deriving at least one channel estimate for each set of at least one resource block among the plurality of resource blocks based on received pilot symbols from the set of at least one resource block; and means for processing received data symbols from each set of at least one resource block based on the at least one channel estimate for the set of at least one resource block. - View Dependent Claims (34, 35, 36)
-
-
37. A method for wireless communication, comprising:
-
selecting phases for a plurality of carriers based on a metric; and applying the selected phases to data to be sent on the plurality of carriers. - View Dependent Claims (38)
-
Specification