Methods, systems and devices for wireless communications based on ofdma digital modulation schemes

A wireless and wireless network technology, applied in the direction of wireless communication, digital transmission system, modulated carrier system, etc., can solve the problem of inability to separate traffic, achieve low delay and high reliability communication, realize portability and mobility, and avoid interference Effect

Pending Publication Date: 2021-08-13
AIRBUS DEFENCE & SPACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

It provides an improved way to replace wireline connections instead of relying solely on wireless networking technology. Wireless networks are more secure than traditional wires because they have built into them electronic components called radios or antennas. They allow data transfer even when connected through many physical links at once, making it possible to extend long distance communications. Additionally, there has been some improvement where wireless devices like smartphones use this method to connect themselves directly rather than via cables. Overall, this new approach makes better ways to manage complex computerized environments.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving wireless networking performance while reducing delays caused by long distance connections due to poor signal quality at certain locations where many sources have priority use. Current methods like Time Division Multiplexed Access (TDMA), Code Division Multiprotocol Interneaving Switching (CDISW) protocol, Dynamic Bandwidth Allocation Protocol (DBA)-based techniques, etc., either result in delayed data transfer when accessing remote sites or fail altogether if there were no overlap available among them. Additionally, current approaches only work well within specific environments and cannot handle varying levels of service demand.

Method used

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  • Methods, systems and devices for wireless communications based on ofdma digital modulation schemes
  • Methods, systems and devices for wireless communications based on ofdma digital modulation schemes
  • Methods, systems and devices for wireless communications based on ofdma digital modulation schemes

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Embodiment Construction

[0032] While specific embodiments have been shown and described herein, it should be understood by those of ordinary skill in the art that various alternative and / or equivalent implementations may be used without departing from the scope of the present invention manner in lieu of the specific embodiment shown and described. In general, this application is intended to cover any adaptations or variations of the specific embodiments discussed herein.

[0033] A wireless network in the sense of this disclosure refers to a network system based on an Orthogonal Frequency Division Multiple Access (OFDMA) digital modulation scheme. OFDMA is an access point (AP)-centric topology that enables 802.11ax-based APs to communicate with multiple devices simultaneously by dividing each radio frequency channel into subchannels, also known as resource units (RUs). communication. OFDMA is a multi-user variant of the OFDM scheme in which multiple access is achieved by assigning subsets of subcarr

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Abstract

A wireless network includes a plurality of access points with at least pairwise overlapping wireless coverage, each of the access points comprising an OFDMA modulation system and a channel scheduler coupled to the OFDMA modulation system which is configured to set up a number of virtual wireless interfaces of the access point, each virtual wireless interface being associated with a dedicated set of subcarriers within the OFDMA spectrum. At least one first of the virtual wireless interfaces is configured to host all communication links between the access point and local mobile clients to the access point. A least one second of the virtual wireless interfaces is configured to host communication links between the access point and one of the neighbouring access points.

Description

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Claims

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Application Information

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Owner AIRBUS DEFENCE & SPACE
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