Method and apparatus for adaptively controlling signals

• US 20070254592A1
• Filed: 04/27/2006
• Published: 11/01/2007
• Est. Priority Date: 04/27/2006
• Status: Active Grant

• Current Assignee: Crestcom Incorporated
• Original Assignee: Crestcom Incorporated
• Inventors: McCallister, Ronald, Brombaugh, Eric
• Granted Patent: US 7,783,260 B2
• Time in Patent Office: Days
• US Class Current: 455/67.110
• CPC Class Codes: H03F 1/0205 in transistor amplifiers
• CPC Class Codes: H03F 2200/165 A filter circuit coupled to the input of an amplifier
• CPC Class Codes: H03F 2200/258 the input of the amplifier has voltage limiting means
• CPC Class Codes: H03F 3/24 of transmitter output stages
• CPC Class Codes: H03G 3/3042 in modulators, frequency-changers, transmitters or power amplifiers transmission power control in bidirectional transmission systems H04W52/04
• CPC Class Codes: H03G 3/3047 for intermittent signals, e.g. burst signals
• CPC Class Codes: H04B 1/0475 with means for limiting noise, interference or distortion H04B1/0483 takes precedence
• CPC Class Codes: H04L 27/2624 by soft clipping

Abstract

A signal processing system according to various aspects of the present invention includes an excursion signal generator, a scaling system and a filter system. The excursion signal generator identifies a peak portion of a signal that exceeds a threshold and generates a corresponding excursion signal. The scaling system applies a real scale factor to contiguous sets of excursion samples in order to optimize peak-reduction performance. The filter system filters the excursion signal to remove unwanted frequency components from the excursion signal. The filtered excursion signal may then be subtracted from a delayed version of the original signal to reduce the peak. The signal processing system may also control power consumption by adjusting the threshold. The signal processing system may additionally adjust the scale of the excursion signal and/or individual channel signals, such as to meet constraints on channel noise and output spectrum, or to optimize peak reduction. The magnitude threshold, excursion signal and/or individual channel signals may also be adaptively adjusted based on, for example, a channel signal quality such as a noise level specification.

Claims

1. A signal processing system, comprising

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

an excursion signal scaling system configured to adjust the magnitude of the excursion signal, wherein the excursion signal scaling system is configured to process multiple excursion events of the excursion signal and wherein the excursion signal scaling system is further configured to scale unique peak events by unique scale factors,

an excursion filter system configured to filter selected frequencies from the excursion signal, and

an excursion reducer configured to subtract the scaled and filtered excursion signal from a suitably delayed version of the first signal.

2. The signal processing system of claim 1, wherein the excursion signal scaling system is configured to scale a plurality of peaks of the excursion signal.

3. The signal processing system of claim 1, wherein the excursion signal scaling system is configured to scale the excursion signal based on the relative difference between the signal peak value and the magnitude threshold.

4. The signal processing system of claim 1, wherein the excursion signal scaling system is configured to apply unique scale factors to unique peak events comprising an excursion event.

5. The signal processing system of claim 1, wherein the excursion signal scaling system is configured to scale the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

6. The signal processing system of claim 1, wherein the excursion filter system is configured to filter the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

7. The signal processing system of claim 6, wherein the excursion filter system is configured to filter each channel signal pursuant to a unique spectral mask.

8. The signal processing system of claim 1, wherein the excursion signal scaling system is further configured to adaptively adjust the scaling of the excursion signal based on the outputs of the channel filters comprising the excursion filter system.

9. The signal processing system of claim 1, wherein the signal magnitude threshold is a dynamic threshold.

10. The signal processing system of claim 9, wherein the dynamic threshold is based on estimated channel headroom.

11. The signal processing system of claim 1, wherein the excursion signal scaling system is further configured to adjust the unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

12. The signal processing system of claim 1, wherein the excursion signal scaling system further comprises an approximation filter configured to approximate a magnitude effect of the excursion filter system.

13. The signal processing system of claim 12, wherein the excursion signal scaling system is further configured to scale the excursion signal based on an unfiltered maximum magnitude of the peak event and a corresponding maximum magnitude of the peak event after being filtered by the approximation filter.

14. The signal processing system of claim 1, further configured to increase the sampling rate of the signal used to generate the excursion signal.

15. The signal processing system of claim 14, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

16. The signal processing system of claim 1 further configured to process OFDM signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

17. A signal processing system, comprising:

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

an excursion filter system configured to filter selected frequencies from the excursion signal,

a channel scaling system configured to vary the scaling of at least one of the channel signals comprising the excursion signal based on a channel signal quality, wherein the channel scaling system is configured to determine the channel signal quality and adaptively adjust the gain of at least one of the channel signals based on the determination, and

an excursion reducer configured to subtract the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

18. The signal processing system of claim 17, wherein the channel signal quality is based on an error vector magnitude specification.

19. The signal processing system of claim 17, wherein the channel scaling system is configured to determine an amount of noise that may be added to a channel signal without exceeding a limit and adjust the gain of at least one of the channel signals based on the determined amount of noise.

20. The signal processing system of claim 17, wherein the excursion filter system is configured to filter the excursion signal to remove spurious spectral energy outside a defined spectral mask.

21. The signal processing system of claim 20, wherein the excursion filter system is configured to filter each channel signal pursuant to a unique spectral mask.

22. The signal processing system of claim 17, wherein the signal magnitude threshold is a dynamic threshold.

23. The signal processing system of claim 22, wherein the dynamic threshold is based on a power requirement.

24. The signal processing system of claim 17, further configured to increase the sampling rate of the signal used to generate the excursion signal.

25. The signal processing system of claim 24, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

26. The signal processing system of claim 17, further configured to process signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

27. The signal processing system of claim 17, wherein the channel signal quality is a noise level.

28. A signal processing system, comprising:

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

an excursion signal scaling system configured to adjust the magnitude of the excursion signal,

an excursion filter system configured to filter selected frequencies from the scaled excursion signal,

a channel scaling system configured to vary the scaling of at least one of the channel signals comprising the excursion signal based on a channel signal quality, wherein the channel scaling system is configured to determine the channel signal quality and adaptively adjust the gain of at least one of the channel signals based on the determination, and

an excursion reducer configured to subtract the scaled, filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

29. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to adaptively adjust the magnitude of the excursion signal based on the channel signal quality.

30. The signal processing system of claim 28, further comprising a threshold control system configured to adaptively adjust the signal magnitude threshold based on the channel signal quality.

31. The signal processing system of claim 28, wherein the channel signal quality is a noise level.

32. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to process multiple peak events of the excursion signal and wherein the excursion signal scaling system is further configured to scale unique peak events by unique scale factors.

33. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to scale a plurality of peaks of the excursion signal.

34. The signal processing system of claim 28, wherein the excursion signal scaling system scales the excursion signal based on the relative difference between the unscaled excursion signal and the threshold.

35. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to apply the same scale factor to a plurality of peak events comprising an excursion event.

36. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to scale the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

37. The signal processing system of claim 28, wherein the excursion signal scaling system is configured to scale the excursion signal so that a peak of the excursion signal is substantially reduced to match the threshold.

38. The signal processing system of claim 28, wherein the excursion signal scaling system is further configured to adaptively adjust the magnitude of the excursion signal based on the output of the excursion filter system.

39. The signal processing system of claim 28, wherein the channel signal quality is based on an error vector magnitude.

40. The signal processing system of claim 28, wherein the channel scaling system is configured to determine an amount of noise that may be added to a channel signal without exceeding a limit and adjust the gain of at least one of the channel signals based on the determined amount of noise.

41. The signal processing system of claim 28, wherein the filter system is configured to filter the excursion signal to remove spurious spectral energy outside a defined spectral mask.

42. The signal processing system of claim 28, wherein the signal magnitude threshold is a dynamic threshold.

43. The signal processing system of claim 42, wherein the dynamic threshold is based on estimated channel headroom.

44. The signal processing system of claim 28, wherein the excursion signal scaling system is further configured to adjust the unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

45. The signal processing system of claim 28, wherein the excursion signal scaling system further comprises an approximation filter configured to approximate a magnitude effect of the filter system.

46. The signal processing system of claim 28, wherein the excursion signal scaling system is further configured to scale the excursion signal based on an unfiltered maximum magnitude of the peak event and a corresponding maximum magnitude of the peak event after being filtered by the approximation filter.

47. The signal processing system of claim 41, wherein the excursion filter system is configured to filter each channel signal pursuant to a unique spectral mask.

48. The signal processing system of claim 28, further configured to increase the sampling rate of the signal used to generate the excursion signal.

49. The signal processing system of claim 48, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

50. The signal processing system of claim 28 further configured to process OFDM signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

51. A signal processing system, comprising:

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

an excursion filter system configured to filter selected frequencies from the excursion signal,

a channel scaling system configured to vary the scaling of at least one of the channel signals comprising the excursion signal based on a channel signal quality, wherein the channel scaling system is configured to determine the channel signal quality and adaptively adjust the gain of at least one of the channel signals based on the determination,

a threshold control system configured to adaptively adjust the signal magnitude threshold based on the channel signal quality, and

an excursion reducer configured to subtract the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

52. The signal processing system of claim 51, wherein the channel signal quality is based on an error vector magnitude specification.

53. The signal processing system of claim 51, wherein the channel scaling system is configured to determine an amount of noise that may be added to a channel signal without exceeding a limit and adjust the gain of at lease one of the channel signals based on the determined amount of noise.

54. The signal processing system of claim 51, wherein the channel signal quality is a noise level.

55. The signal processing system of claim 51, wherein the channel signal quality is the ratio of allowed noise power to measured noise power.

56. The signal processing system of claim 51 further configured to process OFDM signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

57. The signal processing system of claim 51, further configured to allow a signal transmitter and receiver to operate at an increased transmission power level based on a reduced magnitude threshold level.

58. The signal processing system of claim 51, further configured to vary an amplifier supply voltage based on the magnitude of the filtered excursion signal and thereby reduce power consumption of the amplifier.

59. The signal processing system of claim 51, further configured to increase the sampling rate of the signal used to generate the excursion signal.

60. The signal processing system of claim 59, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

61. A method of processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

adjusting the magnitude of the excursion signal by applying unique scale factors to unique excursion events,

filtering selected frequencies from the scaled excursion signal, and

subtracting the scaled and filtered excursion signal from a suitably delayed version of the first signal.

62. The method of claim 61, further comprising scaling of a plurality of peaks of the excursion signal.

63. The method of claim 61, further comprising scaling the excursion signal based on the relative difference between the unscaled excursion and the threshold.

64. The method of claim 61, further comprising applying unique scale factors to unique peak events comprising an excursion event.

65. The method of claim 61, further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

66. The method of claim 61, further comprising filtering the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

67. The method of claim 66, further comprising filtering each channel signal pursuant to a unique spectral mask.

68. The method of claim 61, further comprising adaptively adjusting the scaling of the excursion signal based on the outputs of the channel filters comprising the excursion filter system.

69. The method of claim 61, further comprising varying the signal magnitude threshold.

70. The method of claim 69, further comprising varying the signal magnitude threshold based on a power requirement.

71. The method of claim 61, further comprising adjusting unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

72. The method of claim 61, further comprising adjusting the excursion signal based on an approximation of a magnitude effect of the excursion filter system.

73. The method of claim 72, further comprising adjusting the excursion signal based on an unfiltered maximum magnitude of the peak event and a corresponding approximation of a magnitude of the peak event.

74. The method of claim 61, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

75. The method of claim 74, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

76. The method of claim 61, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

77. A method of processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the first signal comprises one or more channel signals transmitted via one or more channels,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality, and

subtracting the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

78. The method of claim 77, wherein the channel signal quality is based on a error vector magnitude.

79. The method of claim 77, further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

80. The method of claim 77, further comprising filtering selected frequencies from the excursion signal to remove spurious spectral energy outside a defined spectral mask.

81. The method of claim 77 wherein each channel signal is filtered pursuant to a unique spectral mask.

82. The method of claim 77, further comprising varying the signal magnitude threshold.

83. The method of claim 82 wherein the signal magnitude threshold is varied based on a power requirement.

84. The method of claim 77, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

85. The method of claim 84, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

86. The method of claim 77, wherein the channel signal quality is a noise level.

87. The method of claim 77, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

88. A method of processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

adjusting the magnitude of the excursion signal,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality, and

subtracting the scaled, filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

89. The method of claim 88, further comprising adaptively adjusting the magnitude of the excursion signal based on a channel signal quality.

90. The method of claim 88, further comprising adaptively adjusting the signal magnitude threshold based on the channel signal quality.

91. The method of claim 88, wherein the channel signal quality is a noise level.

92. The method of claim 88, wherein the excursion signal is comprised of multiple peak events and the excursion signal is adjusted by applying unique scale factors to unique peak events.

93. The method of claim 88, further comprising scaling a plurality of peaks of the excursion signal.

94. The method of claim 88, further comprising scaling the excursion signal based on the relative difference between the unscaled excursion and the threshold.

95. The method of claim 88, further comprising scaling the excursion signal by applying the same scale factor to a plurality of peak events comprising an excursion event.

96. The method of claim 88, further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

97. The method of claim 88, further comprising scaling the excursion signal so that a peak of the excursion signal is substantially reduced to match the threshold.

98. The method of claim 88, further comprising adaptively adjusting the magnitude of the excursion signal based on the output of the excursion filter system.

99. The method of claim 88, wherein the channel signal quality is based on an error vector magnitude.

100. The method of claim 88, further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

101. The method of claim 88, further comprising filtering the excursion signal to remove spurious spectral energy outside a defined spectral mask.

102. The method of claim 88, further comprising varying the signal magnitude threshold.

103. The method of claim 102, further comprising varying the signal magnitude threshold based on a power requirement.

104. The method of claim 88, further comprising adjusting the unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

105. The method of claim 88, further comprising adjusting the excursion signal based on an approximation of a magnitude effect of the filter system.

106. The method of claim 105, further comprising adjusting the excursion signal based on an unfiltered magnitude of the excursion and an approximation of a magnitude of the excursion.

107. The method of claim 101, further comprising filtering each channel signal pursuant to a unique spectral mask.

108. The method of claim 88, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

109. The method of claim 108, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

110. The method of claim 88, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

111. A method of processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality,

adaptively adjusting the signal magnitude threshold based on the channel signal quality, and

subtracting the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

112. The method of claim 111, wherein the channel signal quality is based on an error vector magnitude specification.

113. The method of claim 111, further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

114. The method of claim 111, wherein the channel signal quality is a noise level.

115. The method of claim 111, wherein the channel signal quality is the ratio of allowed noise power to measured noise power.

116. The method of claim 111, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

117. The method of claim 111, further comprising configuring a signal transmitter and receiver to operate at an increased transmission power level based on a reduced magnitude threshold level.

118. The method of claim 111, further comprising varying an amplifier supply voltage based on the magnitude of the filtered excursion signal and thereby reducing power consumption of the amplifier.

119. The method of claim 111, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

120. The method of claim 119, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

121. A signal processing system, comprising:

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

an excursion signal scaling system configured to adaptively adjust the magnitude of the excursion signal based on a channel signal quality,

an excursion filter system configured to filter selected frequencies from the excursion signal, and

an excursion reducer configured to subtract the adjusted and filtered excursion signal from a suitably delayed version of the first signal.

122. The signal processing system of claim 121, wherein the channel signal quality is based on an error vector magnitude specification.

123. The signal processing system of claim 121, wherein the excursion signal scaling system is further configured to adaptively adjust the magnitude of the excursion signal based on a specified channel error vector magnitude value and a residual noise level.

124. The signal processing system of claim 121, wherein the excursion signal scaling system is configured to determine an amount of noise that may be added to a channel signal without exceeding a limit and adaptively adjust the magnitude of the excursion signal based on the determined amount of noise.

125. The signal processing system of claim 121, further configured to increase the sampling rate of the signal used to generate the excursion signal.

126. The signal processing system of claim 125, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

127. A method for processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

adaptively adjusting the magnitude of the excursion signal based on a channel signal quality,

filtering selected frequencies from the excursion signal, and

subtracting the adjusted and filtered excursion signal from a suitably delayed version of the first signal.

128. The method of claim 127, wherein the channel signal quality is an error vector magnitude.

129. The method of claim 127, wherein the magnitude of the excursion signal is adaptively adjusted based on a specified channel error vector magnitude value and a residual noise level.

130. The method of claim 127, wherein the magnitude of the excursion signal is adaptively adjusted based on determining an amount of noise that may be added to a channel signal without exceeding a limit and adaptively adjusting the magnitude of the excursion signal based on the determined amount of noise.

131. The method of claim 127, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

132. The method of claim 131, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

133. A computer readable medium containing instructions that when executed by a computer processor performs a method comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

adjusting the magnitude of the excursion signal by applying unique scale factors to unique excursion events,

filtering selected frequencies from the excursion signal, and

subtracting the scaled and filtered excursion signal from a suitably delayed version of the first signal.

134. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising scaling of a plurality of peaks of the excursion signal.

135. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the relative difference between the signal peak value and the magnitude threshold.

136. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising applying unique scale factors to unique peak events comprising an excursion event.

137. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

138. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising filtering the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

139. The computer readable medium of claim 138, wherein the instructions when executed perform a method further comprising filtering each channel signal pursuant to a unique spectral mask.

140. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising adaptively adjusting the scaling of the excursion signal based on the outputs of the channel filters comprising the excursion filter system.

141. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising varying the signal magnitude threshold.

142. The computer readable medium of claim 141, wherein the instructions when executed perform a method further comprising varying the signal magnitude threshold based on a power requirement.

143. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising adjusting unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

144. The computer readable medium of claim 133, wherein the instructions when executed perform a method further comprising adjusting the excursion signal based on an approximation of a magnitude effect of the excursion filter system.

145. The computer readable medium of claim 144, wherein the instructions when executed perform a method further comprising adjusting the excursion signal based on an unfiltered maximum magnitude of the peak event and a corresponding approximation of a maximum magnitude of a peak event.

146. The computer readable medium of claim 133, further containing instructions that when executed by a computer processor performs a method further comprising increasing the sampling rate of the signal used to generate the excursion signal.

147. The computer readable medium of claim 146, further containing instructions that when executed by a computer processor performs a method further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

148. The computer readable medium of claim 133, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

149. A computer readable medium containing instructions that when executed by a computer processor performs a method comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the first signal comprises one or more channel signals transmitted via one or more channels,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality, and

subtracting the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

150. The computer readable medium of claim 149, wherein the channel signal quality is based on an error vector magnitude.

151. The computer readable medium of claim 149, wherein the instructions when executed perform a method further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

152. The computer readable medium of claim 149, wherein the instructions when executed perform a method further comprising filtering selected frequencies from the excursion signal to remove spurious spectral energy outside a defined spectral mask.

153. The computer readable medium of claim 152 wherein each channel signal is filtered pursuant to a unique spectral mask.

154. The computer readable medium of claim 149, wherein the instructions when executed perform a method further comprising varying the signal magnitude threshold.

155. The computer readable medium of claim 154, wherein the signal magnitude threshold is varied based on a power requirement.

156. The computer readable medium of claim 149, further containing instructions that when executed by a computer processor performs a method further comprising increasing the sampling rate of the signal used to generate the excursion signal.

157. The computer readable medium of claim 156, further containing instructions that when executed by a computer processor performs a method further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

158. The computer readable medium of claim 149, wherein the channel signal quality is a noise level.

159. The computer readable medium of claim 149, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

160. A computer readable medium containing instructions that when executed by a computer processor performs a method comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

adjusting the magnitude of the excursion signal,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality, and

subtracting the magnitude-adjusted, filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

161. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising adaptively adjusting the magnitude of the excursion signal based on a channel signal quality.

162. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising adaptively adjusting the signal magnitude threshold based on the channel signal quality.

163. The computer readable medium of claim 160, wherein the channel signal quality is a noise level.

164. The computer readable medium of claim 160, wherein the excursion signal is comprised of multiple peak events and the excursion signal is adjusted by applying unique scale factors to unique peak events.

165. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising scaling a plurality of peaks of the excursion signal.

166. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the relative difference between the unscaled excursion and the threshold.

167. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising scaling the excursion signal by applying the same scale factor to a plurality of peak events comprising an excursion event.

168. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

169. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising scaling the excursion signal so that a peak of the excursion signal is substantially reduced to match the threshold.

170. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising adaptively adjusting the scaling of the excursion signal based on the outputs of the channel filters comprising the excursion filter system.

171. The computer readable medium of claim 160, wherein the channel signal quality is based on an error vector magnitude.

172. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

173. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising filtering the excursion signal to remove spurious spectral energy outside a defined spectral mask.

174. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising varying the signal magnitude threshold.

175. The computer readable medium of claim 174, wherein the instructions when executed perform a method further comprising varying the signal magnitude threshold based on a power requirement.

176. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising adjusting the unique scale factors based on a magnitude effect on the excursion signal caused by the filter system.

177. The computer readable medium of claim 160, wherein the instructions when executed perform a method further comprising adjusting the excursion signal based on an approximation of a magnitude effect of the filter system.

178. The computer readable medium of claim 177, wherein the instructions when executed perform a method further comprising adjusting the excursion signal based on an unfiltered magnitude of the excursion and an approximation of a magnitude of the excursion.

179. The computer readable medium of claim 173, wherein the instructions when executed perform a method further comprising filtering each channel signal pursuant to a unique spectral mask.

180. The computer readable medium of claim 160, further containing instructions that when executed by a computer processor performs a method further comprising increasing the sampling rate of the signal used to generate the excursion signal.

181. The computer readable medium of claim 180, further containing instructions that when executed by a computer processor performs a method further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

182. The computer readable medium of claim 160, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

183. A computer readable medium containing instructions that when executed by a computer processor performs a method comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more channel signals transmitted via one or more channels,

filtering selected frequencies from the excursion signal,

adaptively adjusting the gain of at least one of the channel signals based on a channel signal quality,

adaptively adjusting the signal magnitude threshold based on the channel signal quality, and

subtracting the filtered and gain-adjusted excursion signal from a suitably delayed version of the first signal.

184. The computer readable medium of claim 183, wherein the channel signal quality is based on an error vector magnitude specification.

185. The computer readable medium of claim 183, wherein the instructions when executed perform a method further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of the channel signals based on the determined amount of noise.

186. The computer readable medium of claim 183, wherein the channel signal quality is a noise level.

187. The computer readable medium of claim 183, wherein the channel signal quality is the ratio of allowed noise power to measured noise power.

188. The computer readable medium of claim 183, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

189. The computer readable medium of claim 183, further containing instructions that when executed by a computer processor performs a method further comprising increasing the sampling rate of the signal used to generate the excursion signal.

190. The computer readable medium of claim 189, further containing instructions that when executed by a computer processor performs a method further comprising decreasing the sampling rate of the processed signal prior to subtraction from the first signal.

191. The computer readable medium of claim 183, further containing instructions that when executed by a computer processor performs a method further comprising configuring a signal transmitter and receiver to operate at an increased transmission power level based on a reduced magnitude threshold.

192. The computer readable medium of claim 183, further containing instructions that when executed by a computer processor performs a method further comprising varying an amplifier supply voltage based on the magnitude of the filtered excursion signal and thereby reducing power consumption of the amplifier.

193. A signal processing system, comprising

an excursion signal generator configured to identify an excursion in a first signal exceeding a signal magnitude threshold and generate a corresponding excursion signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

an excursion signal scaling system configured to adjust the magnitude of the excursion signal, wherein the excursion signal scaling system is configured to process multiple excursion events of the excursion signal and wherein the excursion signal scaling system is further configured to apply a fixed real scaling factor to each excursion event,

an excursion filter system configured to filter selected frequencies from the excursion signal, and

an excursion reducer configured to subtract the scaled and filtered excursion signal from a suitably delayed version of the first signal.

194. The signal processing system of claim 193, wherein the fixed real scaling factor is equal to unity.

195. The signal processing system of claim 193, wherein the excursion signal scaling system is configured to scale a plurality of peaks of the excursion signal.

196. The signal processing system of claim 193, wherein the excursion signal scaling system is configured to scale the excursion signal based on the relative difference between the signal peak value and the magnitude threshold.

197. The signal processing system of claim 193, wherein the excursion signal scaling system is configured to apply unique scale factors to unique peak events comprising an excursion event.

198. The signal processing system of claim 193, wherein the excursion signal scaling system is configured to scale the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

199. The signal processing system of claim 193, wherein the excursion filter system is configured to filter the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

200. The signal processing system of claim 199, wherein the excursion filter system is configured to filter each channel signal pursuant to a unique spectral mask.

201. The signal processing system of claim 193, further configured to increase the sampling rate of the signal used to generate the excursion signal.

202. The signal processing system of claim 201, further configured to decrease the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

203. The signal processing system of claim 193, further configured to process OFDM signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

204. A method of processing a signal, comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

applying a fixed real scaling factor to each excursion event,

filtering selected frequencies from the scaled excursion signal, and

subtracting the scaled and filtered excursion signal from a suitably delayed version of the first signal.

205. The method of claim 204, wherein the fixed real scaling factor is equal to unity.

206. The method of claim 204, further comprising scaling of a plurality of peaks of the excursion signal.

207. The method of claim 204, further comprising scaling the excursion signal based on the relative difference between the unscaled excursion and the threshold.

208. The method of claim 204, further comprising applying unique scale factors to unique peak events comprising an excursion event.

209. The method of claim 204, further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

210. The method of claim 204, further comprising filtering the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

211. The method of claim 210, further comprising filtering each channel signal pursuant to a unique spectral mask.

212. The method of claim 204, further comprising increasing the sampling rate of the signal used to generate the excursion signal.

213. The method of claim 212, further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

214. The method of claim 204, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

215. A computer readable medium containing instructions that when executed by a computer processor performs a method comprising:

identifying an excursion in a first signal exceeding a signal magnitude threshold,

generating an excursion signal corresponding to the excursion in the first signal, wherein the excursion signal comprises one or more excursion events, each of which may comprise multiple peak events, and wherein the first signal comprises one or more channel signals transmitted via one or more channels,

applying a fixed real scaling factor to each excursion event,

filtering selected frequencies from the excursion signal, and subtracting the scaled and filtered excursion signal from a suitably delayed version of the first signal.

216. The computer readable medium of claim 215, wherein the fixed real scaling factor is equal to unity.

217. The computer readable medium of claim 215, wherein the instructions when executed perform a method further comprising scaling of a plurality of peaks of the excursion signal.

218. The computer readable medium of claim 215, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the relative difference between the signal peak value and the magnitude threshold.

219. The computer readable medium of claim 215, wherein the instructions when executed perform a method further comprising applying unique scale factors to unique peak events comprising an excursion event.

220. The computer readable medium of claim 215, wherein the instructions when executed perform a method further comprising scaling the excursion signal based on the ratio of the maximum magnitude of the unfiltered peak event to the maximum magnitude of the filtered peak event.

221. The computer readable medium of claim 215, wherein the instructions when executed perform a method further comprising filtering the scaled excursion signal to remove spurious spectral energy outside a defined spectral mask.

222. The computer readable medium of claim 221, wherein the instructions when executed perform a method further comprising filtering each channel signal pursuant to a unique spectral mask.

223. The computer readable medium of claim 215, further containing instructions that when executed by a computer processor performs a method further comprising increasing the sampling rate of the signal used to generate the excursion signal.

224. The computer readable medium of claim 223, further containing instructions that when executed by a computer processor performs a method further comprising decreasing the sampling rate of the processed signal prior to subtraction from a suitably delayed version of the first signal.

225. The computer readable medium of claim 215, wherein the signal is selected from the group including TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

226. A signal processing system comprising:

a distortion measuring system configured to dynamically measure distortion in a signal, wherein the signal comprises one or more channel signals transmitted via one or more channels,

a distortion determination system configured to dynamically determine an allowable amount of distortion in at least one channel signal,

a distortion budgeting system configured to dynamically subtract measured distortion from allowable distortion to identify the maximum incremental distortion in at least one channel signal which may be created by peak-reduction processing, and

a peak-reduction processing system configured to reduce signal peaks in at least one channel signal, wherein the peak-reduction processing system creates no more than the maximum incremental distortion.

227. The signal processing system of claim 226, wherein the allowable amount of distortion is based on an error vector magnitude specification.

228. The signal processing system of claim 226, wherein the system for dynamically determining an allowable amount of distortion is configured to determine an amount of noise that may be added to a channel signal without exceeding a limit.

229. The signal processing system of claim 226, wherein the distortion is comprised of residual linear and nonlinear distortion.

230. The signal processing system of claim 226, further configured to process signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

231. A method of processing a signal, comprising:

dynamically measuring distortion in at least one channel signal of a signal comprised of one or more channel signals transmitted via one or more channels,

dynamically determining an allowable amount of distortion in at least one channel signal,

dynamically subtracting measured distortion from allowable distortion to identify the maximum incremental distortion in at least one channel signal which may be created by peak-reduction processing, and

reducing signal peaks in at least one channel signal via peak-reduction processing, wherein the peak-reduction processing creates no more than the maximum incremental distortion.

232. The method of claim 231, wherein the allowable amount of distortion is based on an error vector magnitude specification.

233. The method of claim 231, wherein the step of dynamically determining an allowable amount of distortion includes determining an amount of noise that may be added to a channel signal without exceeding a limit.

234. The method of claim 231, wherein the distortion is comprised of residual linear and nonlinear distortion.

235. The method of claim 231, wherein the signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

236. A computer readable medium containing instructions that when executed by a computer processor performs a method of processing a signal, comprising:

dynamically measuring distortion in at least one channel signal of a signal comprised of one or more channel signals transmitted via one or more channels,

dynamically determining an allowable amount of distortion in at least one channel signal,

dynamically subtracting measured distortion from allowable distortion to identify the maximum incremental distortion in at least one channel signal which may be created by peak-reduction processing, and

reducing signal peaks in at least one channel signal via peak-reduction processing, wherein the peak-reduction processing creates no more than the maximum incremental distortion.

237. The computer readable medium of claim 236, wherein the allowable amount of distortion is based on an error vector magnitude specification.

238. The computer readable medium of claim 236, wherein the instructions when executed performing the step of dynamically determining an allowable amount of distortion includes determining an amount of noise that may be added to a channel signal without exceeding a limit.

239. The computer readable medium of claim 236, wherein the distortion is comprised of residual linear and nonlinear distortion.

240. The computer readable medium of claim 236, wherein the signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

241. A signal processing system comprising:

a signal generator configured to generate a second signal corresponding to at least a part of a first signal, said first signal comprising one or more channel signals transmitted via one or more channels,

a measurement system configured to determine the amount of a channel signal variable present in at least one of the channel signals of the second signal,

a channel scaling system configured to vary the scaling of at least one of the channel signals of the second signal based on the measured amount of the channel signal variable,

wherein the channel scaling system is configured to adaptively adjust the gain of at least one of the channel signals of the second signal based on the amount of the channel signal variable present in such channel signal, and

a circuit configured to combine the gain-adjusted second signal with a suitably delayed version of the first signal to produce an output signal.

242. The signal processing system of claim 241, wherein the channel signal variable is a noise level.

243. The signal processing system of claim 242, wherein the noise level is the short term average channel noise induced by a peak reduction process.

244. The signal processing system of claim 243, configured to reduce the variance of the error vector magnitude of at least one channel signal of the output signal.

245. The signal processing system of claim 243, configured to reduce the maximum magnitude of the error vector magnitude of at least one channel signal of the output signal.

246. The signal processing system of claim 243, wherein the channel scaling system is configured to adaptively adjust the gain of at least one of the channel signals of the second signal in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

247. The signal processing system of claim 241, further configured to process signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

248. A method of processing a signal comprising:

generating a second signal corresponding to at least a part of a first signal, said first signal comprising one or more channel signals transmitted via one or more channels, measuring the amount of a channel signal variable present in at least one of the channel signals of the second signal,

dynamically varying the scaling of at least one of the channel signals of the second signal based on the measured amount of the channel signal variable by adaptively adjusting the gain of at least one of the channel signals of the second signal based on the amount of the channel signal variable present in such channel signal, and

combining the gain-adjusted second signal with a suitably delayed version of the first signal to produce an output signal.

249. The method of claim 248, wherein the channel signal variable is a noise level.

250. The method of claim 249, wherein the noise level is the short term average channel noise induced by a peak reduction process.

251. The method of claim 250, further including reducing the variance of the error vector magnitude of at least one channel signal of the output signal.

252. The method of claim 250, further including reducing the maximum magnitude of the error vector magnitude of at least one channel signal of the output signal.

253. The method of claim 250, further including adaptively adjusting the gain of at least one of the channel signals of the second signal in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

254. The method of claim 248, wherein the at least one signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

255. A computer readable medium containing instructions that when executed by a computer processor performs a method of processing a signal comprising:

generating a second signal corresponding to at least a part of a first signal, said first signal comprising one or more channel signals transmitted via one or more channels,

measuring the amount of a channel signal variable present in at least one of the channel signals of the second signal,

dynamically varying the scaling of at least one of the channel signals of the second signal based on the measured amount of the channel signal variable by adaptively adjusting the gain of at least one of the channel signals of the second signal based on the amount of the channel signal variable present in such channel signal, and

combining the gain-adjusted second signal with a suitably delayed version of the first signal to produce an output signal.

256. The computer readable medium of claim 255, wherein the channel signal variable is a noise level.

257. The computer readable medium of claim 256, wherein the noise level is the short term average channel noise induced by a peak reduction process.

258. The computer readable medium of claim 257, wherein the instructions when executed further include reducing the variance of the error vector magnitude of at least one channel signal of the output signal.

259. The computer readable medium of claim 257, wherein the instructions when executed further include reducing the maximum magnitude of the error vector magnitude of at least one channel signal of the output signal.

260. The computer readable medium of claim 257, wherein the instructions when executed further include adaptively adjusting the gain of at least one of the channel signals of the second signal in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

261. The computer readable medium of claim 255, wherein the at least one signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

262. A signal processing system, comprising:

a distortion management system for dynamically controlling the amount of distortion in a signal subject to peak-reduction processing, wherein the signal comprises one or more channel signals transmitted via one or more channels, said distortion management system comprising;

a distortion measurement system configured to determine the amount of a channel signal distortion variable present in at least one of the channel signals, and

a channel scaling system configured to adaptively adjust the gain of at least one of the channel signals based on the measured amount of the channel signal distortion variable present in such channel, thereby adjusting the amount of the distortion variable resulting from peak-reduction processing.

263. The signal processing system of claim 262, wherein the channel signal distortion variable is a noise level.

264. The signal processing system of claim 263, wherein the noise level is the short term average channel noise induced by a peak reduction process.

265. The signal processing system of claim 264, configured to reduce the variance of the error vector magnitude of at least one channel signal of a peak-reduced signal.

266. The signal processing system of claim 264, configured to reduce the maximum magnitude of the error vector magnitude of at least one channel signal of a peak-reduced signal.

267. The signal processing system of claim 264, wherein the channel scaling system is configured to adaptively adjust the gain of at least one of the channel signals in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

268. The signal processing system of claim 262, further configured to process signals selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

269. A method of processing a signal, comprising:

dynamically controlling the amount of distortion in a signal subject to peak-reduction processing, wherein the signal comprises one or more channel signals transmitted via one or more channels, said method comprising;

determining the amount of a channel signal distortion variable present in at least one of the channel signals, and

adaptively adjust the gain of at least one of the channel signals based on the measured amount of the channel signal distortion variable present in such channel, thereby adjusting the amount of the distortion variable resulting from peak-reduction processing.

270. The method of claim 269, wherein the channel signal distortion variable is a noise level.

271. The method of claim 270, wherein the noise level is the short term average channel noise induced by a peak reduction process.

272. The method of claim 271, further including reducing the variance of the error vector magnitude of at least one channel signal of a peak-reduced signal.

273. The method of claim 271, further including reducing the maximum magnitude of the error vector magnitude of at least one channel signal of a peak-reduced signal.

274. The method of claim 271, further including adaptively adjusting the gain of at least one of the channel signals in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

275. The method of claim 269, wherein the at least one signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.

276. A computer readable medium containing instructions that when executed by a computer processor performs a method of processing a signal, comprising:

dynamically controlling the amount of distortion in a signal subject to peak-reduction processing, wherein the signal comprises one or more channel signals transmitted via one or more channels, said method comprising;

determining the amount of a channel signal distortion variable present in at least one of the channel signals, and

adaptively adjusting the gain of at least one of the channel signals based on the measured amount of the channel signal distortion variable present in such channel, thereby adjusting the amount of the distortion variable resulting from peak-reduction processing.

277. The computer readable medium of claim 276, wherein the channel signal distortion variable is a noise level.

278. The computer readable medium of claim 277, wherein the noise level is the short term average channel noise induced by a peak reduction process.

279. The computer readable medium of claim 278, wherein the instructions when executed further include reducing the variance of the error vector magnitude of at least one channel signal of a peak-reduced signal.

280. The computer readable medium of claim 278, wherein the instructions when executed further include reducing the maximum magnitude of the error vector magnitude of at least one channel signal of a peak-reduced signal.

281. The computer readable medium of claim 278, wherein the instructions when executed further include adaptively adjusting the gain of at least one of the channel signals in response to the value of the average power of the channel noise induced by a peak reduction process relative to the maximum permissible induced channel noise power as defined by an error vector magnitude specification.

282. The computer readable medium of claim 276, wherein the at least one signal is selected from the group consisting of TDD, GSM, CDMA, WCDMA, TDMA, OFDM, and OFDMA signals, and signals formed as hybrids of this group.