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Interference discovery and cancellation for WLAN with full duplex radios

A full-duplex, trigger message technology, applied in the direction of radio transmission system, wireless communication, duplex signal operation, etc.

Pending Publication Date: 2021-01-29
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to isolation limitations, radios on certain frequencies and bands may only transmit or receive at certain times

Method used

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  • Interference discovery and cancellation for WLAN with full duplex radios
  • Interference discovery and cancellation for WLAN with full duplex radios
  • Interference discovery and cancellation for WLAN with full duplex radios

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Figure 1A is a schematic diagram illustrating an exemplary communication system 100 in which one or more disclosed embodiments may be implemented. The communication system 100 may be a multiple access system that provides content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users. The communication system 100 can enable multiple wireless users to access such content by sharing system resources, including wireless bandwidth. By way of example, communication system 100 may use one or more channel access methods such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), Single-carrier FDMA (SC-FDMA), zero-tail unique word discrete Fourier transform extended OFDM (ZT-UW-DFT-s OFDM), unique word OFDM (UW-OFDM), resource block filtering OFDM, and filter bank multicarrier (FBMC) and so on.

[0027] Such as Figure 1A As shown, communication system 10...

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PUM

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Abstract

Methods and apparatus for interference discovery for full-duplex data transmission are provided. In an embodiment, a station (STA) receives a full-duplex request message from an access point (AP). TheSTA transmits a first full-duplex response message to the AP. The STA listens for a second full-duplex response message transmitted from a second STA to the AP. The STA determines a received power ofthe second full-duplex response message from the second STA to the AP. The STA receives a first trigger message from the AP. The first trigger message includes information to perform full-duplex datatransmission. The STA transmits data to the AP in response to the first trigger message. The STA transmits interference information to the AP. The interference information is based on the determinedreceived power.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 666,486, filed May 3, 2018, the contents of which are incorporated herein by reference. Background technique [0003] Traditional wireless communication systems are usually limited to transmissions in the downlink and associated receptions in the uplink, and vice versa, using a combination of time / frequency / spatial / polarization dimensions to separate the downlink and uplink transmissions . Due to isolation limitations, radios on certain frequencies and bands may only transmit or receive at certain times. Separation of transmitted and received signals may be achieved using frequency-based separation, such as a Frequency Division Duplex (FDD) transmission scheme, or time-based separation, such as a Time Division Duplex (TDD) transmission scheme. Contents of the invention [0004] Methods and apparatus for interference discovery for full-duplex d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/14H04W72/08H04W72/12H04W74/04H04W72/54
CPCH04L5/001H04L5/0007H04L5/0035H04L5/14H04B7/0617H04W74/0816H04W72/541H04B17/309
Inventor 娄汉卿阿尔凡·沙欣奥盖内科梅·奥泰里孙立祥王晓飞杨瑞
Owner INTERDIGITAL PATENT HLDG INC