Patent ID: 11863247
Assignee: SAGEMCOM ENERGY & TELECOM SAS
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A node device intended to be used in a power line communication network, said node device being configured so as to communicate with a second node device located in its network neighbourhood and so as to communicate in at least two frequency bands, and the second node device being configured so as to communicate in at least one of said at least two frequency bands, the node device comprising:
a transmission module configured so as to transmit, to the second node device in at least two frequency bands, a copy of a first message comprising, in each of the at least two frequency bands, information according to which a channel estimate is requested from the second node device,
a transmission module for transmitting, in a frequency band called “extended band”, a message comprising a reference to said extended frequency band to the second node device, said extended frequency band comprising said at least two frequency bands, and said message comprising information according to which a channel estimate of said extended frequency band is requested from the second node device by said first node device,
a reception module for receiving at least one second message, transmitted from the second node device on each frequency band via which the second node device has received a message comprising information according to which a channel estimate is requested, each second message comprising information representative of a channel estimate for the frequency band via which said second message is received,
a recording module configured so as to record, in a memory of said node device, the one or more items of information representative of at least one channel estimate, received from said second node device,
a control unit configured so as to determine, based on the information recorded in said memory, a transmission mode for transmitting a third message to be transmitted subsequently from said node device to the second node device.