Beamforming Resource Allocation for 60 GHz Link Quality
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Solution Overview
Problem
In 60 GHz wireless communication systems, existing beamforming training procedures face challenges in optimizing transmit and receive directions, leading to suboptimal link quality due to the selection of inappropriate TX and RX sectors, resulting in varying signal quality and increased collisions during beamforming operations.
Innovation Solution
The implementation of resource allocation techniques that allow access points to identify available resources and encode indications within frames, enabling devices to determine the most suitable resources and classes for beamforming operations, thereby optimizing sector selection and reducing collisions through the use of secondary channels and class-based access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional beamforming training procedures are used, then devices can establish connections, but link quality is suboptimal due to inappropriate TX and RX sector selection
Solution Approach 1:
The access point performs preliminary resource allocation and sector identification before beamforming training operations. The AP identifies available resources and encodes sector indication information in advance, allowing stations to select appropriate sectors before actual beamforming training occurs, thereby improving link quality through pre-optimized sector selection.
Solution Approach 2:
The patent introduces an intermediary resource allocation mechanism where the access point acts as a coordinator between multiple stations. The AP encodes resource allocation information including sector indications in beacon frames, serving as a mediator that guides station-to-station beamforming operations without requiring direct negotiation between stations, thus improving sector selection accuracy.
2Productivity
If beamforming operations are performed without resource allocation, then devices can communicate, but collisions increase during beamforming training
Solution Approach 1:
The patent segments the beamforming training process into distinct resource-allocated phases. The access point divides available resources (time slots, frequency channels) and assigns them to different station pairs or classes of stations. This segmentation prevents multiple beamforming operations from interfering with each other, thereby reducing collisions while maintaining training efficiency.
Solution Approach 2:
The resource allocation mechanism is dynamic, allowing the access point to adjust resource assignments based on current network conditions, station classes, and traffic requirements. The AP can dynamically encode different resource allocation information in beacon frames, enabling flexible adaptation that reduces collisions while optimizing beamforming training efficiency for varying scenarios.
3Speed
If all devices are allowed to perform beamforming operations simultaneously, then connection establishment is fast, but signal quality varies due to resource conflicts
Solution Approach 1:
The patent applies local quality by assigning different resource allocations and sector indications to different classes of stations or different spatial locations. The access point encodes resource allocation information tailored to specific station classes or local conditions, allowing each group to perform beamforming operations with optimized parameters appropriate to their specific context, thereby ensuring consistent signal quality across different locations and device types.
Data Source
AI summary
Various embodiments may be generally directed to resource allocation techniques for beam forming training. In one embodiment, for example, an apparatus may comprise logic for an access point (AP), at least a portion of the logic implemented in circuitry coupled to the memory, the logic to identify one or more resources available to support beamforming operations in a time interval, enable the AP to use the one or more resources in the time interval to interact with one or more allowed classes of station (STA) to perform one or more beamforming operations, and generate a frame for wireless transmission comprising a set of indicator bits encoded with an indication of the one or more resources. Other embodiments are described and claimed.