Multi-User Wireless Communication Channel Bonding
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Solution Overview
Problem
Current wireless communication systems, such as those operating in the millimeter-wave band, are limited by single-channel bandwidth configurations that restrict high-speed data access and fail to support simultaneous multi-user transmissions, as seen in IEEE 802.11ad specifications, which are optimized for single-user systems and do not enable efficient multi-user MIMO schemes.
Innovation Solution
The implementation of multi-user (MU) communication mechanisms and channel bonding techniques, which allow for the combination of multiple channels to achieve higher bandwidths, enabling simultaneous transmission to multiple users using MU-MIMO schemes and modified PPDU structures that include Automatic Gain Control (AGC) and Training (TRN) fields for beamforming in directional bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If single-channel bandwidth configuration is used, then device complexity is reduced, but data rate and network capacity are limited
Solution Approach 1:
The patent combines multiple channels into a bonded channel to achieve higher bandwidth. Specifically, it bonds a first channel and a second channel to create a wider communication channel, enabling increased data rates while managing complexity through standardized bonding procedures and unified channel management mechanisms.
2Productivity
If single-user system configuration is used, then ease of operation is improved, but network capacity and multi-user support are limited
Solution Approach 1:
The patent segments the network into multiple user groups, where a first group of stations communicates on a first channel and a second group of stations communicates on a second channel. This segmentation enables multi-user support while maintaining manageable operation through group-based management and standardized access procedures for each group.
Solution Approach 2:
The patent creates a universal system that can handle both single-user and multi-user scenarios. The bonded channel mechanism and group management structure allow the system to accommodate different numbers of users and traffic patterns while maintaining consistent operation through standardized protocols and procedures.
3Productivity
If channel bonding is implemented, then bandwidth and data rate are enhanced, but device complexity increases
Solution Approach 1:
The patent changes the bandwidth parameter by bonding multiple channels together. It selects and bonds a first channel and a second channel to create a wider effective bandwidth, enabling enhanced data rates while managing complexity through parameter-based channel selection and standardized bonding configurations.
Data Source
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AI summary
Some demonstrative embodiments include apparatuses, devices, systems and methods of multi-user (MU) wireless communication. For example, a wireless station may be configured to generate a MU Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU) including a header field and a plurality of Media Access Control (MAC) Protocol Data Units (MPDUs) to a respective plurality of users, the header field including an indication of a plurality of lengths of respective ones of the plurality of MPDUs, one or more MPDUs of the plurality of MPDUs being followed by one or more respective PHY padding portions extending to an end of a longest MPDU of the plurality of MPDUs; and process transmission of the MU PPDU to the plurality of users over a wireless communication band.