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US 8,542,698 B1Granted
Methods and apparatus for switching transmission channels
AssigneeMarvell International Ltd.
InventorsRaja Banerjea, Milind Kopikare
Life of this patent
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Abstract
Methods and apparatus for switching transmission channels that include monitoring a number of packets within a transmitter buffer of a transmitter, determining that the number of packets within the transmitter buffer exceeds a pre-determined threshold, and changing a transmission channel used by the transmitter for transmission based at least upon the number of packets within the transmitter buffer exceeding a pre-determined threshold.
Claims19
A method comprising:
- monitoring a number of packets within a transmitter buffer of a transmitter;
- determining whether the number of packets within the transmitter buffer exceeds a first predetermined threshold;
- monitoring a noise floor of a first transmission channel used by the transmitter for transmission of packets within the transmitter buffer;
- periodically performing a clear channel assessment of the first transmission channel;
- changing the transmission of packets from occurring over the first transmission channel to a second transmission channel in response to
- the number of packets within the transmitter buffer exceeding the first predetermined threshold, and
- if at least one of (i) the noise floor exceeds a second predetermined threshold, or (ii) the clear channel assessment exceeds a third predetermined threshold;
- and
- in response to determining that the number of packets within the transmitter buffer of the transmitter is less than a fourth predetermined threshold, scanning one or more potential channels to determine if the one or more potential channels are suitable for transmission,
- wherein the second transmission channel is different from the first transmission channel.
7 more elements
An apparatus comprising:
- a transmitter buffer configured to buffer packets for transmission by the transmission block;
- a transmitter block configured to transmit, over a first transmission channel, the packets buffered within the transmitter buffer;
- and
- a control block configured to
- monitor a level of packets within the transmitter buffer, and determine whether the level of packets within the transmitter buffer exceeds a first predetermined threshold,
- monitor a noise floor of the first transmission channel being used by the transmission block for transmission of packets within the transmitter buffer,
- periodically perform a clear channel assessment of the first transmission channel,
- change the transmission of packets from occurring over the first transmission channel to a second transmission channel in response to
- the level of packets within the transmitter buffer exceeding the first predetermined threshold, and
- if at least one of (i) the noise floor exceeds a second threshold or (ii) the clear channel assessment exceeds a third predetermined threshold, and
- in response to determining that the number of packets within the transmitter buffer of the transmitter is less than a fourth predetermined threshold, scan one or more potential channels to determine if the one or more potential channels are suitable for transmission,
- wherein the second transmission channel is different from the first transmission channel.
9 more elements
Dependencies are inferred from the claim text.