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US 9,287,929 B2Granted
Robust handshake procedure in cross-talk environments
AssigneeQUALCOMM Incorporated
InventorMurli Mohan Rao
Life of this patent
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Abstract
Embodiments of the invention provide a robust mechanism to isolate transceivers that attempt to train on a FEXT channel during the handshake phase and to abort a false activation. According to aspects of the invention, either or both transceiver acknowledges the unique identity of the other transceiver during the handshake phase. This ensures that the transceiver progresses to training and beyond with only one other remote transceiver.
Claims20
A method for identifying transceivers that train on a far-end crosstalk channel, comprising:
- initiating a handshake phase comprising a plurality of handshake messages between a first transceiver and a second transceiver;
- generating a unique identifier (ID) associated with the first transceiver at the first transceiver;
- sending the unique ID associated with the first transceiver from the first transceiver to the second transceiver using one of the handshake messages;
- receiving a subsequent handshake message at the first transceiver;
- and
- aborting the handshake phase at the first transceiver if the received subsequent handshake message does not include the unique ID associated with the first transceiver.
3 more elements
A communication device comprising:
- a processor;
- a memory in electronic communication with the processor;
- instructions stored in the memory, where in the instructions are executable by the processor to cause the communication device to:
- initiate a handshake phase comprising a plurality of handshake messages with a remote transceiver;
- generate a unique identifier (ID) associated with the communication device;
- send the unique ID associated with the communication device to the remote transceiver using one of the handshake messages;
- receive a subsequent handshake message;
- and
- abort the handshake phase if the at least one received subsequent handshake message does not include the unique ID associated with the communication device.
6 more elements
Dependencies are inferred from the claim text.