System and method for monitoring network traffic
AssigneeFreescale Semiconductor, Inc.
InventorMatthew L. Welborn
Life of this patent
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Abstract
A transceiver (110, 120, 130, 140) is provided, comprising: a receiver circuit (230) configured to process an incoming signal received over a transmission channel; a transmitter circuit (240) configured to generate an outgoing signal; a preamble detector (260) configured to monitor the transmission channel to determine whether a preamble or header is currently being transmitted over the transmission channel; and a control circuit (250) configured to enable the transmitter circuit to generate the outgoing signal whenever the preamble detector determines that no preamble or header is currently being received. The transceiver may also include a memory (270) for storing packet details regarding a status of other packets being sent over the transmission channel,
Claims19
A transceiver, comprising:
- a receiver circuit configured to process an incoming signal received over a transmission channel;
- a transmitter circuit configured to generate an outgoing signal;
- a preamble detector configured to monitor the transmission channel to determine whether a preamble or header is currently being transmitted over the transmission channel;
- and
- a control circuit configured to enable the transmitter circuit to generate the outgoing signal whenever the preamble detector determines that no preamble or header is currently being received,
- wherein the preamble and the header both use a first spreading code different from a second spreading code used by the payload associated with the header.
A method of operating a local transceiver, comprising:
- receiving at least a preamble and a header portion of an incoming packet over a transmission medium, the incoming packet comprising the preamble, the header portion, and a payload;
- decoding the preamble and header;
- and
- transmitting an outgoing packet over the transmission medium to a target transceiver after the preamble and header are received and decoded, but before the payload is finished being transmitted over the transmission medium,
- wherein the incoming packet is addressed to a device other than the local transceiver or the target transceiver.
A method of operating a local transceiver, comprising:
- receiving at least a preamble and a header portion of an incoming packet over a transmission medium, the incoming packet comprising the preamble, the header portion, and a payload;
- decoding the preamble and header;
- determining whether an incoming destination address for the payload corresponds to one of a local address for the local transceiver or an outgoing address for a remote transceiver that is an intended destination for an outgoing packet;
- repeating the receiving, decoding, and determining operations after the preamble and header are received and decoded, but before the payload is finished being transmitted,
- wherein the incoming packet is addressed to the remote transceiver.
Dependencies are inferred from the claim text.