Beam Selection for Multi-Feedback Physical Channel Reception
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Solution Overview
Problem
In directional beam-based communication, existing systems face challenges in efficiently managing and receiving multiple feedbacks on a physical feedback channel due to beam misalignment and resource allocation inefficiencies, leading to potential communication delays and errors.
Innovation Solution
A method is proposed where a device selects a specific beam and associated reference signal resources for receiving multiple feedbacks on a physical feedback channel by limiting the beams used for transmission and reception, ensuring efficient resource utilization and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple feedbacks are received on a physical feedback channel using different beams, then the quantity of feedback information is improved, but beam misalignment and resource allocation inefficiencies occur
Solution Approach 1:
The patent combines multiple feedback receptions into a single beam direction. Instead of using separate beams for each feedback, the system selects one common beam (third beam) for receiving all feedbacks related to multiple physical shared channels, thereby avoiding beam misalignment while maintaining the ability to receive multiple feedbacks simultaneously
Solution Approach 2:
The selected third beam serves multiple functions by being used to receive all feedbacks related to different physical shared channels. This universal beam approach allows a single beam to handle multiple feedback reception tasks, eliminating the need for separate dedicated beams for each feedback
2Adaptability or versatility
If multiple beams are used for receiving feedbacks, then the capacity to handle multiple feedbacks is improved, but device complexity increases
Solution Approach 1:
The patent extracts the beam selection function from the feedback reception process. By separating the beam selection step (selecting a common third beam) from the feedback reception step, the system simplifies beam management while maintaining the ability to handle multiple feedbacks. The beam selection is performed once, and then that same beam is used for all subsequent feedback receptions
3Productivity
If beam limiting is applied for feedback reception, then resource utilization efficiency is improved, but the flexibility in beam selection is reduced
Solution Approach 1:
The patent applies preliminary beam selection before feedback reception. By selecting a common third beam in advance (before receiving the actual feedbacks), the system prepares the optimal beam direction beforehand. This preliminary action ensures efficient resource utilization during feedback reception while the initial selection process maintains flexibility by evaluating multiple beam options before committing to one
Data Source
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AI summary
Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: obtaining information related to a slot for a physical feedback channel, wherein the slot for the physical feedback channel is related to slots for a plurality of physical shared channels; transmitting a first physical shared channel among the plurality of physical shared channels, based on a first beam; transmitting a second physical shared channel among the plurality of physical shared channels, based on a second beam; and receiving (i) first feedback related to the first physical shared channel, and (ii) second feedback related to the second physical shared channel, on the slot for the physical feedback channel, based on a third beam. For example, information related to a beam paired with the third beam for transmission of the first feedback and the second feedback is included in a plurality of control information transmitted through the plurality of physical shared channels.