Frequency agile radio system and method
First Claim
1. A method, comprising:
- transmitting data directly between a first endpoint device and a second endpoint device on a primary channel;
identifying, with the first endpoint device, a second channel free from having an acceptable level of interference to exchange data between the first endpoint device and the second endpoint device;
in response to determining that the data transmitted on the primary channel is not received, retransmitting the data on the secondary channel directly between the first endpoint device and the second endpoint device when an unacceptable level of interference is detected on the primary channel;
receiving a data packet on the primary channel from the second endpoint device; and
responding to the received data packet with another data packet that includes a frequency associated with the secondary channel, wherein the second endpoint device is configured to store the frequency associated with the secondary channel and continue to exchange data over the primary channel with the first endpoint device.
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Accused Products
Abstract
This invention provides a method for improved frequency agility and preferably includes transmitting and receiving data on a primary channel; finding a secondary channel substantially free from interference during a period between data transmissions on the primary channel; and transmitting and receiving data on the secondary channel when an unacceptable level of interference is detected on the primary channel. In an alternate embodiment, data is preferably transmitted on a primary and a secondary channel during separate periods of a transmission interval. If an unacceptable level of interference is detected on either the primary or secondary channels, then the other channel is used for data transmission during one of the periods while another one of the periods is used to identify a new channel substantially free from interference to replace the bad channel.
37 Citations
18 Claims
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1. A method, comprising:
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transmitting data directly between a first endpoint device and a second endpoint device on a primary channel; identifying, with the first endpoint device, a second channel free from having an acceptable level of interference to exchange data between the first endpoint device and the second endpoint device; in response to determining that the data transmitted on the primary channel is not received, retransmitting the data on the secondary channel directly between the first endpoint device and the second endpoint device when an unacceptable level of interference is detected on the primary channel; receiving a data packet on the primary channel from the second endpoint device; and responding to the received data packet with another data packet that includes a frequency associated with the secondary channel, wherein the second endpoint device is configured to store the frequency associated with the secondary channel and continue to exchange data over the primary channel with the first endpoint device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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selecting primary and secondary channels substantially free from interference; transmitting data packets on the primary channel during a first period of a data transmission interval; re-transmitting the same data packets on the secondary channel during a second period of the data transmission interval; and identifying another channel during the first period of the data transmission interval when an unacceptable level of interference is detected on the primary channel or during the second period of the data transmission interval when an unacceptable level of interference is detected on the secondary channel. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A wireless system, comprising:
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a transmitter configured to transmit data to a receiver on a primary channel; a channel selector configured to find a secondary channel between data transmissions on the primary channel, wherein the transmitter and receiver are configured to switch to transmitting and receiving data on the secondary channel when an unacceptable level of interference is detected on the primary channel, and wherein the transmitter is further configured to retransmit on the secondary channel the data transmitted on the primary channel in response to determining that the data transmitted on the primary channel was not received, and wherein the transmitter is further configured to respond to a data packet received from the receiver with another data packet that identifies a frequency associated with the secondary channel, wherein the receiver is configured to store the frequency associated with the secondary channel and continue to exchange data over the primary channel with the transmitter. - View Dependent Claims (15, 16, 17, 18)
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Specification