Bi-directional link margin establishment for wireless embedded systems
First Claim
1. A method for bi-directional link margin establishment in a wireless embedded system, the wireless embedded system comprising a wireless end point (WEP) and a wireless access point (WAP), the method comprising:
- sending a first link margin exchange packet by the WEP to the WAP;
measuring by the WAP an uplink signal strength of the first link margin exchange packet;
sending by the WAP to the WEP a second link margin exchange packet comprising the measured uplink signal strength of the first link margin exchange packet;
measuring by the WEP a downlink signal strength of the second link margin exchange packet;
calculating by the WEP an uplink link margin based on the uplink signal strength from the second link margin exchange packet;
sending by the WEP to the WAP a third link margin exchange packet comprising the measured downlink signal strength of the second link margin exchange packet and the calculated uplink link margin;
measuring by the WAP the uplink signal strength of the third link margin exchange packet;
calculating by the WAP a downlink link margin based on the downlink signal strength from the third link margin exchange packet;
sending by the WAP to the WEP a fourth link margin exchange packet comprising the measured uplink signal strength of the third link margin exchange packet and the calculated downlink link margin; and
comparing at least one of the uplink link margin and the downlink link margin to a threshold, the WEP joining the WAP when the at least one of the uplink link margin and the downlink link margin is greater than the threshold.
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Accused Products
Abstract
A method for bi-directional link margin establishment includes sending a first link margin exchange packet by a wireless end point (WEP) to a wireless access point (WAP); measuring an uplink signal strength of the first packet; sending to the WEP a second packet comprising the measured uplink signal strength of the first packet; measuring a downlink signal strength of the second packet; calculating an uplink link margin based on the uplink signal strength from the second packet; sending to the WAP a third packet comprising the measured downlink signal strength of the second packet and the calculated uplink link margin; measuring the uplink signal strength of the third packet; calculating a downlink link margin based on the downlink signal strength from the third packet; and sending to the WEP a fourth packet comprising the measured uplink signal strength of the third packet and the calculated downlink link margin.
21 Citations
17 Claims
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1. A method for bi-directional link margin establishment in a wireless embedded system, the wireless embedded system comprising a wireless end point (WEP) and a wireless access point (WAP), the method comprising:
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sending a first link margin exchange packet by the WEP to the WAP; measuring by the WAP an uplink signal strength of the first link margin exchange packet; sending by the WAP to the WEP a second link margin exchange packet comprising the measured uplink signal strength of the first link margin exchange packet; measuring by the WEP a downlink signal strength of the second link margin exchange packet; calculating by the WEP an uplink link margin based on the uplink signal strength from the second link margin exchange packet; sending by the WEP to the WAP a third link margin exchange packet comprising the measured downlink signal strength of the second link margin exchange packet and the calculated uplink link margin; measuring by the WAP the uplink signal strength of the third link margin exchange packet; calculating by the WAP a downlink link margin based on the downlink signal strength from the third link margin exchange packet; sending by the WAP to the WEP a fourth link margin exchange packet comprising the measured uplink signal strength of the third link margin exchange packet and the calculated downlink link margin; and comparing at least one of the uplink link margin and the downlink link margin to a threshold, the WEP joining the WAP when the at least one of the uplink link margin and the downlink link margin is greater than the threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless end point (WEP) comprising:
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a memory; and a computer processor, the WEP configured to perform a method comprising; send to a wireless access point (WAP) a first link margin exchange packet; receive from the WAP a second link margin exchange packet comprising a measured uplink signal strength of the first link margin exchange packet; measure a downlink signal strength of the second link margin exchange packet; calculate an uplink link margin based on the uplink signal strength from the second link margin exchange packet; send to the WAP a third link margin exchange packet comprising the measured downlink signal strength of the second link margin exchange packet and the calculated uplink link margin; and compare at least one of the uplink link margin and the downlink link margin to a threshold, the WEP joining the WAP when the at least one of the uplink link margin and the downlink link margin is greater than the threshold. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless access point (WAP) comprising:
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a memory; and a computer processor, the WAP configured to perform a method comprising; receive from a wireless end point (WEP) a first link margin exchange packet; measure an uplink signal strength of the first link margin exchange packet; send to the WEP a second link margin exchange packet comprising the measured uplink signal strength of the first link margin exchange packet; receive from the WEP a third link margin exchange packet comprising a measured downlink signal strength of the second link margin exchange packet and a calculated uplink link margin; measure the uplink signal strength of the third link margin exchange packet; calculate a downlink link margin based on the downlink signal strength from the third link margin exchange packet; send to the WEP a fourth link margin exchange packet comprising the measured uplink signal strength of the third link margin exchange packet and the calculated downlink link margin; compare at least one of the uplink link margin and the downlink link margin to a threshold, the WAP forming a wireless network with the WEP when the at least one of the uplink link margin and the downlink link margin is greater than the threshold. - View Dependent Claims (14, 15, 16, 17)
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Specification