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US 10,455,618 B2Granted
Synchronized-contention window full-duplex MAC protocol for enabling full-duplex communication in wireless local area network
AssigneeSabanci Universitesi
InventorsOzgur Gurbuz, Deniz Marlali
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Abstract
An S-CW FD system includes a method of operating a local area network accessible by a plurality of local area network communication nodes, each station including transceiver means adapted to operate on a wireless electromagnetic wave transmission channel. The system includes a synchronized contention window (S-CW) full duplex (FD) protocol enabling full duplex communication in wireless local area networks (WLAN) by means of a medium access control (MAC) protocol.
Claims16
A method comprising:
- transmitting, over a local area network accessible by a plurality of local area network communication nodes, a first communication data packet from a first communication node to a second communication node by selecting the second communication node from a backoff list using a minimum of backoff slot times in said backoff list, wherein the local area network includes an access point (AP) and a plurality of stations, each communication node including transceiver means adapted to operate in full-duplex on a wireless electromagnetic wave transmission channel, and wherein the backoff list comprises a list of backoff slot times for all communication nodes in a coverage area of the access point,
- updating an entry for said second communication node in the backoff list with a value of a randomly generated backoff slot time,
- wherein transmitting said first communication data packet to said second communication node comprises the substeps of setting a backoff slot time field in said first communication data packet to the value of said randomly generated backoff slot time,
- setting a full duplex (FD) field in the first communication data packet, said FD field indicating that full-duplex FD mode is on,
- setting an FD master and slave field in said first communication data packet, said FD master and slave field informing of a role of a receiving communication node,
- starting a full-duplex communication between said first communication node and said second communication node, both the first and second communication nodes backing off with the minimum of the backoff slot times associated with said second communication node in said backoff list.
3 more elements
Dependencies are inferred from the claim text.