Multi-user mimo preference-indication signaling

Abstract

The present invention is entitled "Multi-User MIMO Preference-Indication Signaling". Interface circuitry in a recipient electronic device (such as a cell phone) may provide preference indication information to the electronic device (such as an access point). It should be noted that the recipient electronic device may calculate preference indication information associated with the recipient electronic device, wherein the preference indication information indicates whether the recipient electronic device prefers the electronic device to use the downlink ( DL) Multi-user (MU) MIMO transmission. The recipient electronic device may then provide preference indication information in a packet or frame associated with the electronic device. In some embodiments, the recipient electronic device determines a trigger event, such as measuring an indication of motion, and can selectively perform calculations based at least in part on the trigger event. Furthermore, the preference indication information may include additional information used by the recipient electronic device to calculate the preference indication of the recipient electronic device.

Description

technical field [0001] The embodiments generally relate to wireless communication between electronic devices, and techniques for providing preference indication information. Background technique [0002] Many electronic devices communicate with each other using wireless local area networks (WLANs), such as those based on communication protocols compatible with the IEEE 802.11 standard (sometimes referred to as "Wi-Fi"). To increase throughput during communications, access points using certain IEEE 802.11 standards may use downlink (DL) multi-user (MU) multiple-input multiple-output (MIMO) communications with multiple recipient electronic devices (sometimes referred to as for "station") communication. [0003] However, DL MU MIMO communication may degrade communication performance. For example, factors such as mobility of the recipient electronic device and / or changing channel conditions (such as due to changes in the environment) may degrade communication performance when ...

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Problems solved by technology

[0003] However, DL MU MIMO communication can degrade communication performance

For example, factors such as mobility of the recipient electronic device and / or changing channel conditions (such as due to changes in the environment) can degrade communication performance when communicating using DL MU MIMO

[0004] In addition, DL MU MIMO communication may have fairness issues

It is worth noting that while an access point communicates with multiple compatible receiver electronic devices using DL MUMIMO communication, many legacy receiver electronic devices that may not be compatible with MU MIMO communication have reduced channel access

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