公开(公告)号：US20190158157A1

公开(公告)日：2019-05-23

申请号：US15819254

申请日：2017-11-21

Applicant: Cisco Technology, Inc.

Inventor： Xiaoli Ma ,  Hongyi Fu ,  Brian D. Hart ,  Matthew A. Silverman

IPC: H04B7/0452 ,  H04L25/02 ,  H04L27/26

Abstract: A wireless device, such as an wireless access point, receives signals detected by a plurality of antennas of a wireless device to produce a plurality of antenna-specific receive signals potentially representing a wireless transmission received from each of one or a plurality of devices. A signal processing component of the wireless device, such as a modem, performs several operations on the antenna-specific receive signals, including building a first space-time equalizer to be applied to the plurality of antenna-specific receive signals to recover a transmission from a first device by both equalizing channel effects and canceling out effects associated with transmissions from devices other than the first device, and building a second space-time equalizer to be applied to the plurality of antenna-specific receive signals to recover a transmission from a second device by both equalizing channel effects and canceling out effects associated with transmissions from devices other than the second device.

公开(公告)号：US10277293B1

公开(公告)日：2019-04-30

申请号：US15819254

申请日：2017-11-21

Applicant: Cisco Technology, Inc.

Inventor： Xiaoli Ma ,  Hongyi Fu ,  Brian D. Hart ,  Matthew A. Silverman

IPC: H04B7/0452 ,  H04L25/02 ,  H04L27/26

Abstract: A wireless device, such as an wireless access point, receives signals detected by a plurality of antennas of a wireless device to produce a plurality of antenna-specific receive signals potentially representing a wireless transmission received from each of one or a plurality of devices. A signal processing component of the wireless device, such as a modem, performs several operations on the antenna-specific receive signals, including building a first space-time equalizer to be applied to the plurality of antenna-specific receive signals to recover a transmission from a first device by both equalizing channel effects and canceling out effects associated with transmissions from devices other than the first device, and building a second space-time equalizer to be applied to the plurality of antenna-specific receive signals to recover a transmission from a second device by both equalizing channel effects and canceling out effects associated with transmissions from devices other than the second device.