UHR Trigger Frame Signaling With Implicit CSD Indexing
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently supporting ultra-high reliability (UHR) signaling, particularly in managing coding schemes, spatial configurations, and interference suppression, which limits the flexibility and coordination between devices.
Innovation Solution
Implementing a user info field with a subfield indicating multiple coding scheme options and leveraging implicit relationships between UHR parameters, such as UEQM and LDPC coding, to enhance signaling flexibility and reduce overhead, along with coordinated beamforming to manage interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a subfield with at least two bits is used to indicate coding scheme options, then coding flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent changes the parameter of the subfield from one bit to at least two bits, enabling it to indicate multiple coding scheme options (first coding scheme, second coding scheme, third coding scheme) instead of a single option. This parameter change directly improves coding flexibility while the patent manages the resulting overhead through efficient encoding schemes.
2Loss of information
If implicit relationships between UHR parameters are leveraged, then signaling overhead is reduced, but coordination complexity increases
Solution Approach 1:
The patent applies universality by making the subfield serve multiple functions: it not only indicates coding scheme options but also implicitly conveys spatial configuration information and interference management parameters. This multi-functionality reduces overall signaling overhead by eliminating the need for separate fields for these related parameters.
Solution Approach 2:
The subfield acts as an intermediary that mediates between coding scheme selection and spatial configuration. By encoding both coding and spatial information in the same subfield, it coordinates these previously separate functions, reducing the need for additional coordination signaling between devices.
3Object-affected harmful factors
If coordinated beamforming is implemented, then interference management is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring beamforming parameters and spatial relationships through the enhanced subfield signaling. Devices receive advance information about coding schemes and spatial configurations, allowing them to pre-coordinate beamforming operations and reduce interference before actual data transmission begins.
Data Source
AI summary
This disclosure provides methods, components, devices, and systems for ultra-high reliability (UHR) signaling design. Some aspects more specifically relate to an access point (AP) transmitting a frame including a user info field to a wireless station (STA), where the user info field supports UHR parameters. The user info field may include a subfield indicating a coding scheme for communications, where the subfield includes at least two bits to support at least three coding scheme options. Additionally, or alternatively, the AP may transmit a trigger frame indicating for one or more STAs to communicate via distributed resource units (RUs). The AP may arrange the user info fields in the trigger frame to implicitly indicate respective global cyclic shift delay (CSD) indexes to the STAs. A STA receiving the trigger frame may determine a global CSD index corresponding to the STA according to the order of the user info fields.