Wireless local area network repeater with detection
First Claim
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1. A method for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the method comprising:
- establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels;
monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and
qualifying, when the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying further comprisesmeasuring an elapsed time associated with the detected signal, if the detected signal is the wanted signal;
refining at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being greater than a minimum value and the second criteria is refined if the threshold event is the elapsed time being not greater than the minimum value.
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Abstract
A frequency translating repeater (200) for use in a time division duplex radio protocol communications system includes an automatic gain control feature. Detection is performed by comparators (401, 411) ADCs (402, 412); DACs (404, 414) and a processor (315). Detection can be overridden by processor (315) using logic elements (406, 416, 407, and 417) to control the generation of a Channel A/Channel B signal and a PA_ON signal for controlling a power amplifier associated with the transmitter.
278 Citations
62 Claims
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1. A method for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the method comprising:
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establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and qualifying, when the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying further comprises measuring an elapsed time associated with the detected signal, if the detected signal is the wanted signal; refining at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being greater than a minimum value and the second criteria is refined if the threshold event is the elapsed time being not greater than the minimum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the method comprising:
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establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and qualifying, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying further comprises measuring an elapsed time associated with the detected signal, if the detected signal is the wanted signal; refining at least one of a first or a second criteria based upon a threshold event;
wherein the first criteria is refined if the threshold event is the elapsed time being not greater than a maximum value; anddisabling the transmission if the threshold event is the elapsed time being greater than a minimum value.
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18. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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a radio frequency interface; a processor; and a memory coupled to the processor and the radio frequency interface, the memory containing instructions for causing the processor to; establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the instructions for qualifying further cause the processor to measure an elapsed time associated with the detected signal, if the detected signal is the wanted signal; and refine at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being greater than a minimum value and the second criteria is refined if the threshold event is the elapsed time being not greater than the minimum value. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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a radio frequency interface; a processor; and a memory coupled to the processor and the radio frequency interface, the memory containing instructions for causing the processor to; establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the instructions for qualifying further cause the processor to measure an elapsed time associated with the detected signal, if the detected signal is the wanted signal; and refine at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being not greater than a maximum value and wherein the transmission is disabled if the threshold event is the elapsed time being greater than a minimum value.
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44. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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a radio frequency interface; a processor; and a memory coupled to the processor and the radio frequency interface, the memory containing instructions for causing the processor to; establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the instructions in causing the processor to qualify, further cause the processor to; monitor the signal for a first period of time when the signal is above one of the first and the second thresholds; and integrate the signal for a second period of time prior to comparing the signal to the first and the second thresholds. - View Dependent Claims (45, 46)
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47. A non-transitory computer-readable medium comprising instructions, which, when executed by a machine, cause the machine to perform operations for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the instructions comprising:
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instructions to establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; instructions to monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and instructions to qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying further comprises instructions to measure an elapsed time associated with the detected signal, if the detected signal is the wanted signal; and instructions to refine at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being greater than a minimum value and the second criteria is refined if the threshold event is the elapsed time being not greater than the minimum value. - View Dependent Claims (48, 49, 50)
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51. A non-transitory computer-readable medium comprising instructions, which, when executed by a machine, cause the machine to perform operations for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the instructions comprising:
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instructions to establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; instructions to monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; and instructions to qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying further comprises instructions to measure an elapsed time associated with the detected signal, if the detected signal is the wanted signal; instructions to refine at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being not greater than a maximum value; and instructions to disable the transmission if the threshold event is the elapsed time being greater than a minimum value.
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52. A non-transitory computer-readable medium comprising instructions, which, when executed by a machine, cause the machine to perform operations for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless, local area network (WLAN) operating according to a protocol, the instructions comprising:
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instructions to establish a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; instructions to monitor the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; instructions to qualify, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal; instructions to monitor the signal for a first period of time when the signal is above one of the first and the second thresholds; and instructions to integrate the signal for a second period of time prior to comparing the signal to the first and the second thresholds. - View Dependent Claims (53, 54)
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55. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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means for establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; means for monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; means for qualifying, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying means further comprises means for measuring an elapsed time associated with the detected signal, if the detected signal is the wanted signal; and means for refining at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being greater than a minimum value and the second criteria is refined if the threshold event is the elapsed time being not greater than the minimum value. - View Dependent Claims (56, 57, 58)
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59. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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means for establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; means for monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; means for qualifying, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal, wherein the qualifying means further comprises means for measuring an elapsed time associated with the detected signal, if the detected signal is the wanted signal; means for refining at least one of a first or a second criteria based upon a threshold event, wherein the first criteria is refined if the threshold event is the elapsed time being not greater than a maximum value; and means for disabling the transmission if the threshold event is the elapsed time being greater than a minimum value.
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60. An apparatus for detecting the presence of a signal on one of at least two frequency channels in a frequency translating repeater for use in wireless local area network (WLAN) operating according to a protocol, the apparatus comprising:
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means for establishing a first threshold associated with a first of the at least two frequency channels and a second threshold associated with a second of the at least two frequency channels; means for monitoring the first and second frequency channels to detect the signal thereon in accordance with a first detection mode including the first threshold and the second threshold; means for qualifying, if the signal is detected, to determine whether the detected signal is a wanted signal or an unwanted signal; means for monitoring the signal for a first period of time when the signal is above one of the first and the second thresholds; and means for integrating the signal for a second period of time prior to comparing the signal to the first and the second thresholds. - View Dependent Claims (61, 62)
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Specification