최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0268156 (2002-10-09) |
등록번호 | US-7403539 (2008-07-22) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 14 인용 특허 : 4 |
Techniques for and apparatus capable of implementing packet detection and signal recognition in wireless communications systems are disclosed. In particular, the disclosed techniques and apparatus incorporate at least one of relative energy detection operable on assessment of a relative energy thres
Techniques for and apparatus capable of implementing packet detection and signal recognition in wireless communications systems are disclosed. In particular, the disclosed techniques and apparatus incorporate at least one of relative energy detection operable on assessment of a relative energy threshold for an inbound signal borne across an RF channel, carrier sense operable upon on assessment of at least one of a peak-to-sidelobe ratio and peak-to-peak distance defined by the inbound signal, and comparison operable upon demodulated data corresponding to the inbound signal as compared to predetermined preamble data. Clear channel assessment is performed based on determinations undertaken by one or more of the aforementioned relative energy detection, carrier sense and comparison operations.
What is claimed is: 1. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: at least one of: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the in
What is claimed is: 1. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: at least one of: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a comparison unit including an input to receive demodulated data corresponding to the inbound signal, said comparison unit to selectively issue a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on said carrier sense validation signal and at least one of the energy threshold validation signal and the preamble validation signal, the the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid. 2. The packet detection unit of claim 1, comprising said relative energy detection unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold validation signal. 3. The packet detection unit of claim 2, further comprising said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold and preamble validation signals. 4. The packet detection unit of claim 1, further comprising said carrier sense unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold validation signal and the carrier sense validation signal. 5. The packet detection unit of claim 4, further comprising said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold, carrier sense, and preamble validation signals. 6. The packet detection unit of claim 4, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense unit comprises: a consecutive peak-to-peak distance determination unit to calculate a consecutive peak-to-peak distance for the inbound signal; and a control unit responsive to the consecutive peak-to-peak distance to issue the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and to issue the second carrier sense validation signal if the consecutive peak-to-peak distance exceeds the maximum acceptable distance. 7. The packet detection unit of claim 6, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; wherein said relative energy detection unit comprises: a gain differential unit to determine a gain change over time for the inbound signal; and a second control unit responsive to the gain change over time to issue the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and to issue the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; and wherein said clear channel assessment unit issues a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 8. The packet detection unit of claim 7, wherein said clear channel assessment unit comprises: a timer to issue a timeout signal upon expiration of a predetermined time period; and a control unit responsive to said relative energy detection unit and said timer to selectively issue the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation and the second carrier sense validation signals. 9. The packet detection unit of claim 7, wherein said clear channel assessment unit issues the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 10. The packet detection unit of claim 9, wherein said clear channel assessment unit comprises: a timer to issue a timeout signal upon expiration of a predetermined time period; and a control unit responsive to said relative energy detection unit and said timer to selectively issue the channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 11. The packet detection unit of claim 4, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense unit comprises: a peak-to-sidelobe determination unit to calculate a peak-to-sidelobe average ratio for the inbound signal; and a control unit responsive to the peak-to-sidelobe average ratio to issue the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and to issue the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 12. The packet detection unit of claim 11, wherein the second signal quality threshold does not exceed the first signal quality threshold. 13. The packet detection unit of claim 11, wherein said carrier sense unit further comprises a consecutive peak-to-peak distance determination unit to calculate a consecutive peak-to-peak distance for the inbound signal; and wherein said control unit issues the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 14. The packet detection unit of claim 11, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; wherein said relative energy detection unit comprises: a gain differential unit to determine a gain change over time for the inbound signal; and a second control unit responsive to the gain change over time to issue the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and to issue the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; and wherein said clear channel assessment unit issues a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 15. The packet detection unit of claim 14, wherein said clear channel assessment unit comprises: a timer to issue a timeout signal upon expiration of a predetermined time period; and a control unit responsive to said relative energy detection unit and said timer to selectively issue the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation and the second carrier sense validation signals. 16. The packet detection unit of claim 14, wherein said clear channel assessment unit issues the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 17. The packet detection unit of claim 16, wherein said clear channel assessment unit comprises: a timer to issue a timeout signal upon expiration of a predetermined time period; and a control unit responsive to said relative energy detection unit and said timer to selectively issue the channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 18. The packet detection unit of claim 1, further comprising said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the preamble validation signal. 19. The packet detection unit of claim 18, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 20. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal: and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on the energy threshold validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said relative energy detection unit comprises: a gain differential unit to determine a gain change over time for the inbound signal; and a control unit responsive to the gain change over time to issue the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and to issue the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 21. The packet detection unit of claim 20, wherein the second energy detection threshold does not exceed the first energy detection threshold. 22. The packet detection unit of claim 20, further comprising a noise floor unit to selectively generate a delayed gain signal responsive to the inbound signal, wherein said gain differential unit determines the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 23. The packet detection unit of claim 22, further comprising a gain control unit to generate the gain signal and issue a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said noise floor unit generates the time-delayed gain signal from the gain signal when the gain-unlock signal is issued by the gain control unit. 24. The packet detection unit of claim 20, wherein said clear channel assessment unit comprises: a timer to issue a timeout signal upon expiration of a predetermined time period; and a control unit responsive to said relative energy detection unit and said timer to selectively issue a channel idle signal responsive to the second energy threshold validation signal and the timeout signal. 25. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal: and a clear channel assessment unit to selectively issue a channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid; wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the carrier sense validation signal. 26. The packet detection unit of claim 25, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense unit comprises: a peak-to-sidelobe determination unit to calculate a peak-to-sidelobe average ratio for the inbound signal; and control unit responsive to the peak-to-sidelobe average ratio to issue the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and to issue the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 27. The packet detection unit of claim 26, wherein the second signal quality threshold does not exceed the first signal quality threshold. 28. The packet detection unit of claim 26, wherein said carrier sense unit further comprises a consecutive peak-to-peak distance determination unit to calculate a consecutive peak-to-peak distance for the inbound signal; and wherein said control unit issues the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 29. The packet detection unit of claim 25, further comprising said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the carrier sense and preamble validation signals. 30. A transceiver, comprising: an RF receiver to receive an inbound signal borne across an RF channel; and a packet detection unit capable of recognizing whether the inbound signal is valid, comprising at least one of: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a comparison unit including an input to receive demodulated data corresponding to the inbound signal, said comparison unit to selectively issue a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on at least one of the energy threshold, carrier sense, and preamble validation signals, the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid. 31. The transceiver of claim 30, wherein said packet detection unit comprises said relative energy detection unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold validation signal. 32. The transceiver of claim 31, wherein said packet detection unit further comprises said carrier sense unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold and carrier sense validation signals. 33. The transceiver of claim 32, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense unit comprises: a peak-to-sidelobe determination unit to calculate a peak-to-sidelobe average ratio for the inbound signal; and a control unit responsive to the peak-to-sidelobe average ratio to issue the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and to issue the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 34. The transceiver of claim 33, wherein the second signal quality threshold does not exceed the first signal quality threshold. 35. The transceiver of claim 33, wherein said carrier sense unit further comprises a consecutive peak-to-peak distance determination unit to calculate a consecutive peak-to-peak distance for the inbound signal; and wherein said control unit issues the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 36. The transceiver of claim 32, wherein said packet detection unit further comprises said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold, carrier sense, and preamble validation signals. 37. The transceiver of claim 31, wherein said packet detection unit further comprises said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the energy threshold and preamble validation signals. 38. The transceiver of claim 30, wherein said packet detection unit further comprises said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the preamble validation signal. 39. The transceiver of claim 38, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 40. A transceiver comprising: an RF receiver to receive an inbound signal borne across an RF channel; a packet detection unit capable of recognizing whether the inbound signal is valid, comprising: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on said energy threshold validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said relative energy detection unit comprises: a gain differential unit to determine a gain change over time for the inbound signal; and control unit responsive to the gain change over time to issue the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and to issue the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 41. The transceiver of claim 40, wherein the second energy detection threshold does not exceed the first energy detection threshold. 42. The transceiver of claim 40, further comprising a noise floor unit to selectively generate a delayed gain signal responsive to the inbound signal, wherein said gain differential unit determines the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 43. The transceiver of claim 42, further comprising a gain control unit to generate the gain signal and issue a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said noise floor unit generates the time-delayed gain signal from the gain signal when the gain-unlock signal is issued by the gain control unit. 44. A transceiver, comprising: an RF receiver to receive an inbound signal borne across an RF channel; and a packet detection unit capable of recognizing whether the inbound signal is valid, comprising: a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid, wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the carrier sense validation signal. 45. The transceiver of claim 44, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense unit comprises: a peak-to-sidelobe determination unit to calculate a peak-to-sidelobe average ratio for the inbound signal; and a control unit responsive to the peak-to-sidelobe average ratio to issue the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and to issue the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 46. The transceiver of claim 45, wherein the second signal quality threshold does not exceed the first signal quality threshold. 47. The transceiver of claim 45, wherein said carrier sense unit further comprises a consecutive peak-to-peak distance determination unit to calculate a consecutive peak-to-peak distance for the inbound signal; and wherein said control unit issues the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 48. The transceiver of claim 44, wherein said packet detection unit further comprises said comparison unit; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the carrier sense and preamble validation signals. 49. A network interface apparatus, comprising: a transceiver, comprising: an RF receiver to receive an inbound signal borne across an RF channel; and a packet detection unit capable of recognizing whether the inbound signal is valid, comprising: at least one of: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a comparison unit including an input to receive demodulated data corresponding to the inbound signal, said comparison unit to selectively issue a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on at least one of the energy threshold, carrier sense, and preamble validation signals, the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid; and a network interface to selectively issue the demodulated data. 50. An information processing apparatus, comprising: an information processor; and a network interface apparatus responsive to said information processor, said network interface apparatus comprising: a transceiver, comprising: an RF receiver to receive an inbound signal borne across an RF channel; and a packet detection unit capable of recognizing whether the inbound signal is valid, comprising at least one of: a relative energy detection unit to selectively issue an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a comparison unit including an input to receive demodulated data corresponding to the inbound signal, said comparison unit to selectively issue a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; a carrier sense unit to selectively issue a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and a clear channel assessment unit to selectively issue a channel busy signal responsive to and based on at least one of the energy threshold, carrier sense, and preamble validation signals, the channel busy signal to selectively indicate that the inbound signal is determined by said clear channel assessment unit to be valid; and a network interface to selectively issue the demodulated data to said information processor. 51. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: at least one of: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and means for receiving demodulated data corresponding to the inbound signal, said receiving means including means for selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; means for selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and means for selectively issuing a channel busy signal responsive to and based on at least one of the energy threshold, carrier sense, and preamble validation signals, the channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid. 52. The packet detection unit of claim 51, comprising said energy threshold validation signal issuing means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal. 53. The packet detection unit of claim 52, further comprising said carrier sense validation signal issuing means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold and carrier sense validation signals. 54. The packet detection unit of claim 53, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing means comprises: means for calculating a peak-to-sidelobe average ratio for the inbound signal; and means for issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and means for issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 55. The packet detection unit of claim 54, wherein the second signal quality threshold does not exceed the first signal quality threshold. 56. The packet detection unit of claim 54, wherein said carrier sense validation signal issuing means further comprises means for calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing means includes means for issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 57. The packet detection unit of claim 54, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; wherein said energy threshold validation signal issuing means comprises: means for determining a gain change over time for the inbound signal; and means for issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and means for issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; and wherein said channel busy signal issuing means includes means for issuing a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 58. The packet detection unit of claim 57, wherein said idle channel signal issuing means comprises: means for issuing a timeout signal upon expiration of a predetermined time period; and means for selectively issuing the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation signal and the second carrier sense validation signal. 59. The packet detection unit of claim 57, wherein said channel idle signal issuing means includes means for issuing the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 60. The packet detection unit of claim 59, wherein said channel idle signal issuing means comprises: means for issuing a timeout signal upon expiration of a predetermined time period; and means for selectively issuing a channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 61. The packet detection unit of claim 53, further comprising said receiving means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold, carrier sense, and preamble validation signals. 62. The packet detection unit of claim 53, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing means comprises: means for calculating a consecutive peak-to-peak distance for the inbound signal; and means for issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and means for issuing the second carrier sense validation signal if the consecutive peak-to-peak distance exceeds the maximum acceptable distance. 63. The packet detection unit of claim 62, wherein said energy threshold validation signal comprises first and second energy threshold validation signals; wherein said energy threshold validation signal issuing means comprises: means for determining a gain change over time for the inbound signal; and means for issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and means for issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; and wherein said channel busy issuing means includes means for issuing a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 64. The packet detection unit of claim 63, wherein said channel idle signal issuing means comprises: means for issuing a timeout signal upon expiration of a predetermined time period; and means for selectively issuing the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation and the second carrier sense validation signals. 65. The packet detection unit of claim 63, wherein said channel idle signal issuing means includes means for issuing the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 66. The packet detection unit of claim 65, wherein said channel idle signal issuing means comprises: means for issuing a timeout signal upon expiration of a predetermined time period; and means for selectively issuing the channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 67. The packet detection unit of claim 52, further comprising said receiving means; and wherein said channel busy signal issuing means selectively issues the channel busy signal responsive to and based on the energy threshold and preamble validation signals. 68. The packet detection unit of claim 51, further comprising said receiving means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the preamble validation signal. 69. The packet detection unit of claim 68, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 70. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; means for selectively issuing a channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said energy threshold validation signal issuing mean comprises: means for determining a gain change over time for the inbound signal; and means for issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and means for issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 71. The packet detection unit of claim 70, wherein the second energy detection threshold does not exceed the first energy detection threshold. 72. The packet detection unit of claim 70, further comprising means for selectively generating a delayed gain signal responsive to the inbound signal, wherein said gain change determination means includes means for determining the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 73. The packet detection unit of claim 72, further comprising means for generating the gain signal and means for issuing a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said delayed signal generation means includes means for generating the time-delayed gain signal from the gain signal when the gain-unlock signal is issued by the gain-unlock signal issuing means. 74. The packet detection unit of claim 70, wherein said channel busy signal issuing means comprises: means for issuing a timeout signal upon expiration of a predetermined time period; and means for selectively issuing a channel idle signal responsive to the second energy threshold validation signal and the timeout signal. 75. A packet detection unit capable of recognizing an inbound signal borne across an RF channel as being valid, comprising: means for selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and means for selectively issuing a channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the carrier sense validation signal. 76. The packet detection unit of claim 75, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing means comprises: means for calculating a peak-to-sidelobe average ratio for the inbound signal; and means for issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and means for issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 77. The packet detection unit of claim 76, wherein the second signal quality threshold does not exceed the first signal quality threshold. 78. The packet detection unit of claim 76, wherein said carrier sense validation signal issuing means further comprises means for calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing means includes means for issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 79. The packet detection unit of claim 75, further comprising said receiving means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the carrier sense and preamble validation signals. 80. A transceiver, comprising: means for receiving an inbound signal borne across an RF channel; means for recognizing whether the inbound signal is valid, comprising: at least one of: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and means for receiving demodulated data corresponding to the inbound signal, said receiving means including means for selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; means for selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and means for selectively issuing a channel busy signal responsive to and based on said carrier sense validation signal and at least one of the energy threshold, validation signal and the preamble validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid. 81. The transceiver of claim 80, wherein said recognizing means comprises said energy threshold validation signal issuing means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal. 82. The transceiver of claim 81, wherein said recognizing means further comprises said receiving means; and wherein said channel busy signal issuing means selectively issues the channel busy signal responsive to and based on the energy threshold and preamble validation signals. 83. The transceiver of claim 80, wherein said recognizing means further comprises said carrier sense validation signal issuing means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal and the carrier sense validation signal. 84. The transceiver of claim 83, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing means comprises: means for calculating a peak-to-sidelobe average ratio for the inbound signal; and means for issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and means for issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 85. The transceiver of claim 84, wherein the second signal quality threshold does not exceed the first signal quality threshold. 86. The transceiver of claim 84, wherein said carrier sense validation signal issuing means further comprises means for calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal includes means for issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 87. The transceiver of claim 83, wherein said recognizing means further comprises said receiving means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the energy threshold, carrier sense, and preamble validation signals. 88. The transceiver of claim 80, wherein said recognizing means further comprises said carrier sense validation signal issuing means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the carrier sense validation signal. 89. The transceiver of claim 88, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing means comprises: means for calculating a peak-to-sidelobe average ratio for the inbound signal; and means for issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold and means for issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 90. The transceiver of claim 89, wherein the second signal quality threshold does not exceed the first signal quality threshold. 91. The transceiver of claim 89, wherein said carrier sense validation signal issuing means further comprises means for calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing means includes means for issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 92. The transceiver of claim 88, wherein said recognizing means further comprises said receiving means; and wherein said clear channel assessment unit selectively issues the channel busy signal responsive to and based on the carrier sense and preamble validation signals. 93. The transceiver of claim 80, wherein said recognizing means further comprises said receiving means; and wherein said channel busy signal issuing means includes means for selectively issuing the channel busy signal responsive to and based on the preamble validation signal. 94. The transceiver of claim 93, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 95. A transceiver comprising: means for receiving an inbound signal borne across an RF channel; means for recognizing whether the inbound signal is valid, comprising: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; means for selectively issuing a channel busy signal responsive to and based on said the energy threshold validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said energy threshold validation signal issuing mean comprises: means for determining a gain change over time for the inbound signal; and means for issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold and means for issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 96. The transceiver of claim 95, wherein the second energy detection threshold does not exceed the first energy detection threshold. 97. The transceiver of claim 95, further comprising means for selectively generating a delayed gain signal responsive to the inbound signal, wherein said gain change determination means includes means for determining the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 98. The transceiver of claim 97, further comprising means for generating the gain signal and means for issuing a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said delayed signal generation means includes means for generating the time-delayed gain signal from the gain signal when the gain-unlock signal is issued by the gain-unlock signal issuing means. 99. A network interface apparatus, comprising: transceiver means, comprising: means for receiving an inbound signal borne across an RF channel; means for recognizing whether the inbound signal is valid, comprising: at least one of: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and means for receiving demodulated data corresponding to the inbound signal, said receiving means including means for selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; means for selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and means for selectively issuing a channel busy signal responsive to and based on the carrier sense validation signal and at least one of the energy threshold, validation signal, and the preamble validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid; and means for selectively issuing the demodulated data. 100. An information processing apparatus, comprising: Information processing means; and network interface, comprising: transceiver, comprising: means for receiving an inbound signal borne across an RF channel; means for recognizing whether the inbound signal is valid, comprising: at least one of: means for selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and means for receiving demodulated data corresponding to the inbound signal, said receiving means including means for selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; means for selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and means for selectively issuing a channel busy signal responsive to and based on the carrier sense validation signal and at least one of the energy threshold, validation signal and the preamble validation signal, the channel busy signal to selectively indicate that the inbound signal is determined by said channel busy signal issuing means to be valid; and means for selectively issuing the demodulated data. 101. A method for recognizing an inbound signal borne across an RF channel as being valid, comprising: at least one of: selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a combination of receiving demodulated data corresponding to the inbound signal and selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and selectively issuing a channel busy signal responsive to and based on the carrier sense validation signal and at least one of the energy threshold, validation signal and the preamble validation signal, the channel busy signal to selectively indicate that the inbound signal is determined to be valid. 102. The method of claim 101, comprising performing said energy threshold validation signal issuing step; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal. 103. The method of claim 102, further comprising performing said combination of said receiving and said preamble validation signal issuing steps; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal and the preamble validation signal. 104. The method of claim 101, further comprising performing said carrier sense validation signal issuing step; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal and carrier sense validation signal. 105. The method of claim 104, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing step comprises: calculating a peak-to-sidelobe average ratio for the inbound signal; issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold; and issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 106. The method of claim 105, wherein the second signal quality threshold does not exceed the first signal quality threshold. 107. The method of claim 105, wherein said carrier sense validation signal issuing step further comprises calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing step includes issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 108. The method of claim 105, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; wherein said energy threshold validation signal issuing step comprises: determining a gain change over time for the inbound signal; issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold; and issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; wherein said channel busy signal issuing step includes issuing a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 109. The method of claim 108, wherein said idle channel signal issuing step comprises: issuing a timeout signal upon expiration of a predetermined time period; and selectively issuing the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation signal and the second carrier sense validation signal. 110. The method of claim 108, wherein said channel idle signal issuing step includes issuing the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 111. The method of claim 110, wherein said channel idle signal issuing step comprises: issuing a timeout signal upon expiration of a predetermined time period; and selectively issuing a channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 112. The method of claim 104, wherein the method further comprises said combination of said receiving and said preamble validation signal issuing steps; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold, carrier sense, and preamble validation signals. 113. The method of claim 104, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing step comprises: calculating a consecutive peak-to-peak distance for the inbound signal; issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance; and issuing the second carrier sense validation signal if the consecutive peak-to-peak distance exceeds the maximum acceptable distance. 114. The method of claim 113, wherein said energy threshold validation signal comprises first and second energy threshold validation signals; wherein said energy threshold validation signal issuing step comprises: determining a gain change over time for the inbound signal; issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold; and issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold; and wherein said channel busy issuing step includes issuing a channel idle signal responsive to at least one of the second energy threshold validation and the second carrier sense validation signals. 115. The method of claim 114, wherein said channel idle signal issuing step comprises: issuing a timeout signal upon expiration of a predetermined time period; and selectively issuing the channel idle signal responsive to the timeout signal and at least one of the second energy threshold validation and the second carrier sense validation signals. 116. The method of claim 114, wherein said channel idle signal issuing step includes issuing the channel idle signal responsive to the second energy threshold validation and the second carrier sense validation signals. 117. The method of claim 116, wherein said channel idle signal issuing step comprises: issuing a timeout signal upon expiration of a predetermined time period; and selectively issuing the channel idle signal responsive to the timeout signal, the second energy threshold validation signal, and the second carrier sense validation signal. 118. The method of claim 101, further comprising performing said combination of said receiving and selectively issuing steps; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the preamble validation signal. 119. The method of claim 118, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 120. A method for recognizing an inbound signal borne across an RF channel as being valid, comprising: selectively issuing an energy threshold validation signal based in a relative energy threshold for the inbound signal; selectively issuing a channel busy signal responsive to and based on the energy threshold validation signal, the channel busy signal to selectively indicate that the inbound signal is determined to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said energy threshold validation signal issuing step comprises: determining a gain change over time for the inbound signal; issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold; and issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 121. The method of claim 120, wherein the second energy detection threshold does not exceed the first energy detection threshold. 122. The method of claim 120, further comprising selectively generating a delayed gain signal responsive to the inbound signal, wherein said gain change determination step includes determining the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 123. The method of claim 122, further comprising: generating the gain signal; and issuing a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said delayed signal generation step includes generating the time-delayed gain signal from the gain signal when the gain-unlock signal is issued at said gain-unlock signal issuing step. 124. The method of claim 120, further comprising: issuing a timeout signal upon expiration of a predetermined time period; and selectively issuing a channel idle signal responsive to the second energy threshold validation signal and the timeout signal. 125. A method for recognizing an inbound signal borne across an RF channel as being valid, comprising: selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and selectively issuing a channel busy signal to selectively indicate that the inbound signal is determined to be valid, wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the carrier sense validation signal. 126. The method of claim 125, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing step comprises: calculating a peak-to-sidelobe average ratio for the inbound signal; issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold; and issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 127. The method of claim 126, wherein the second signal quality threshold does not exceed the first signal quality threshold. 128. The method of claim 126, wherein said carrier sense validation signal issuing step further comprises calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing step includes issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 129. The method of claim 125, further comprising performing said combination of said receiving and selectively issuing steps; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the carrier sense and preamble validation signals. 130. A computer readable medium, comprising computer readable program code for causing an information processor in support of recognizing an inbound signal borne across an RF channel as being valid to perform the following steps, comprising: at least one of: selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; and a combination of receiving demodulated data corresponding to the inbound signal and selectively issuing a preamble validation signal based on a comparison between the demodulated data against predetermined preamble data; selectively issuing a carrier sense validation signal based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and selectively issuing a channel busy signal responsive to and based on at the carrier sense validation signal and least one of the energy threshold validation signal and the preamble validation signal, the channel busy signal to selectively indicate that the inbound signal is determined to be valid. 131. The computer readable medium of claim 130 comprising the computer readable program code causing the information processor to perform said energy threshold validation signal issuing step; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal. 132. The computer readable medium of claim 131, further comprising computer readable program code causing the information processor to perform the step of: selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal, wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the energy threshold validation signal. 133. The computer readable medium of claim 130, comprising the computer readable program code causing the information processor to perform said combination of said receiving and selectively issuing steps; and wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the preamble validation signal. 134. The computer readable medium of claim 133, wherein the predetermined preamble data comprises a start frame delimiter field compliant with IEEE 802.11/802.11b standards. 135. A computer readable medium, comprising computer readable program code for causing an information processor in support of recognizing an inbound signal borne across an RF channel as being valid to perform the following steps, comprising: selectively issuing an energy threshold validation signal based on a relative energy threshold for the inbound signal; selectively issuing a channel busy signal responsive to and based on the energy threshold validation signal, the channel busy signal to selectively indicate that the inbound signal is determined to be valid, wherein the energy threshold validation signal comprises first and second energy threshold validation signals; and wherein said energy threshold validation signal issuing step comprises: determining a gain change over time for the inbound signal; issuing the first energy threshold validation signal if the gain change over time exceeds a first energy detection threshold; and issuing the second energy threshold validation signal if the gain change over time fails to exceed a second energy detection threshold. 136. The computer readable medium of claim 135, wherein the second energy detection threshold does not exceed the first energy detection threshold. 137. The computer readable medium of claim 135, further comprising computer readable program code causing the information processor to perform the step of selectively generating a delayed gain signal responsive to the inbound signal, wherein said gain change determination step includes determining the gain change over time by calculating a difference between a gain signal responsive to the inbound signal and the time-delayed gain signal. 138. The computer readable medium of claim 137, further comprising computer readable program code causing the information processor to perform the steps of: generating the gain signal; and issuing a gain-unlock signal when a relatively strong inbound signal is perceived, wherein said delayed signal generation step includes generating the time-delayed gain signal from the gain signal when the gain-unlock signal is issued at said gain-unlock signal issuing step. 139. A computer readable medium, comprising computer readable program code for causing an information processor in support of recognizing an inbound signal borne across an RF channel as being valid to perform the following steps, comprising: selectively issuing a carrier sense validation based on at least one of a peak-to-sidelobe ratio and a peak-to-peak distance defined by the inbound signal; and selectively issuing a channel busy signal to selectively indicate that the inbound signal is determined to be valid, wherein said channel busy signal issuing step includes selectively issuing the channel busy signal responsive to and based on the carrier sense validation signal. 140. The computer readable medium of claim 139, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing step comprises: calculating a peak-to-sidelobe average ratio for the inbound signal; issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold; and issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 141. The computer readable medium of claim 140, wherein the second signal quality threshold does not exceed the first signal quality threshold. 142. The computer readable medium of claim 140, wherein said carrier sense validation signal issuing step further comprises calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing step includes issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold. 143. The computer readable medium of claim 139, wherein the carrier sense validation signal comprises first and second carrier sense validation signals; and wherein said carrier sense validation signal issuing step comprises: calculating a peak-to-sidelobe average ratio for the inbound signal; issuing the first carrier sense validation signal if the peak-to-sidelobe average ratio exceeds a first signal quality threshold; and issuing the second carrier sense validation signal if the peak-to-sidelobe average ratio fails to exceed a second signal quality threshold. 144. The computer readable medium of claim 143, wherein the second signal quality threshold does not exceed the first signal quality threshold. 145. The computer readable medium of claim 143, wherein said carrier sense validation signal issuing step further comprises calculating a consecutive peak-to-peak distance for the inbound signal; and wherein said first carrier sense validation signal issuing step includes issuing the first carrier sense validation signal if the consecutive peak-to-peak distance fails to exceed a maximum acceptable distance and the peak-to-sidelobe average ratio exceeds the first signal quality threshold.
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