Preamble for non-linearity estimation
First Claim
Patent Images
1. An apparatus for wireless communications, comprising:
- a processing system configured to;
generate a frame having at least a first header that is phase modulated, wherein the first header comprises a first type of header decodable by first and second types of wireless nodes or a second type of header decodable by the second type of wireless nodes, but not the first type of wireless nodes; and
modulate an amplitude of the first header prior to the first header being amplified by a power amplifier; and
a first interface configured to output the frame for transmission.
1 Assignment
0 Petitions
Accused Products
Abstract
Certain aspects of the present disclosure relate to methods and apparatus for wireless communication. More particularly, aspects of the present disclosure generally relate to techniques for wireless communications by an apparatus comprising a processing system configured to a processing system configured to generate a frame having at least a first header that is phase modulated and to modulate an amplitude of the first header prior to the first header being amplified by a power amplifier, and a first interface configured to output the frame for transmission.
11 Citations
21 Claims
-
1. An apparatus for wireless communications, comprising:
-
a processing system configured to; generate a frame having at least a first header that is phase modulated, wherein the first header comprises a first type of header decodable by first and second types of wireless nodes or a second type of header decodable by the second type of wireless nodes, but not the first type of wireless nodes; and modulate an amplitude of the first header prior to the first header being amplified by a power amplifier; and a first interface configured to output the frame for transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An apparatus for wireless communications, comprising:
a processing system configured to; generate a frame having at least a first header that is phase modulated; and modulate an amplitude of the first header based on a pattern prior to the first header being amplified by a power amplifier, wherein the pattern comprises; at least some portions of the first header at one or more voltage levels at or above a mean voltage level of the first header; and at least some other portions of the first header at one or more voltage levels at or below the mean voltage level of the first header; and an interface configured to output the frame for transmission. - View Dependent Claims (12)
-
13. An apparatus for wireless communications, comprising:
-
an interface configured to obtain a frame having at least a first header; and a processing system configured to; estimate, based on information regarding amplitude modulation of the first header, a transfer function associated with transmission of the first header, wherein the information comprises information regarding a pattern used for the amplitude modulation; and process a remaining portion of the frame based on the estimated transfer function. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. An apparatus for wireless communication, comprising:
-
an interface configured to obtain a frame having at least a first header; and a processing system configured to; decode at least the first header of the obtained frame to obtain a set of bits; encode the set of bits to obtain a re-encoded first header; generate an amplitude pattern for the re-encoded first header; compare the amplitude pattern generated for the re-encoded first header to an amplitude pattern for the first header of the obtained frame; estimate, based on information regarding amplitude modulation of the first header and the comparison, a transfer function associated with transmission of the first header; and process a remaining portion of the frame based on the estimated transfer function. - View Dependent Claims (20)
-
-
21. An apparatus for wireless communication, comprising:
-
an interface configured to obtain a frame having at least a first header, wherein the first header comprises a first type of header decodable by first and second types of wireless nodes or a second type of header decodable by the second type of wireless nodes, but not the first type of wireless nodes, and wherein the apparatus is configured as a wireless node of the second type; and a processing system configured to; estimate, based on information regarding amplitude modulation of the first header, a transfer function associated with transmission of the first header; and process a remaining portion of the frame based on the estimated transfer function.
-
Specification