Patent ID: 11917670
Assignee: MARVELL ASIA PTE LTD
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for transmitting a physical layer (PHY) protocol data unit (PPDU) in a first wireless local area network (WLAN), the method comprising:
determining, at a first communication device in the first WLAN, a channel estimate of a communication channel between the first communication device and a second communication device in a second WLAN using measurements at the first communication device of a first transmission between the second communication device and a third communication device in the second WLAN;
generating, at the first communication device, the PPDU for transmission to a fourth communication device in the first WLAN, including:
determining, using the channel estimate of the communication channel between the first communication device in the first WLAN and the second communication device in the second WLAN, a precoder matrix to use for transmitting the PPDU in the first WLAN, and
generating the PPDU using the precoder matrix so that interference at the second communication device in the second WLAN caused by transmission of the PPDU by the first communication device in the first WLAN is reduced;

determining, at the first communication device, that a first portion of a service coverage area of the first communication device is busy with a second transmission in the second WLAN to the second communication device;
determining, at the first communication device, that the PPDU is to be transmitted to the fourth communication device in the first WLAN concurrently with the second transmission in the second WLAN; and
transmitting, by the first communication device and concurrently with the second transmission in the second WLAN, the PPDU to the fourth communication device in the first WLAN as a directional third transmission.