Beam-Based Grant Reselection for Reliable Wireless Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently performing beam-based communication, particularly in scenarios where the initial grant for transmitting control information and data on physical channels is not available, leading to inefficiencies and potential service disruptions.
Innovation Solution
A method and device are provided for creating a first grant based on a first beam, transmitting control information and data on physical channels, and triggering resource reselection when the initial grant is not available, utilizing transceivers, processors, and memory to manage beam-based communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam-based communication is implemented using initial grants, then communication efficiency is improved, but service reliability deteriorates when grants are unavailable
Solution Approach 1:
The system performs preliminary actions by creating multiple grants (first grant, second grant, third grant) in advance based on different beams before data transmission is needed. When the first grant based on the first beam is unavailable, the system can immediately use pre-created alternative grants without waiting for new grant creation, thus maintaining service reliability while preserving communication efficiency through beam-based transmission.
Solution Approach 2:
The patent implements beforehand cushioning by preparing multiple backup grants associated with different beams before the actual data transmission occurs. This cushioning mechanism ensures that when the primary grant (first grant based on first beam) is unavailable, the system has pre-prepared alternative resources (second grant based on second beam, third grant based on third beam) to prevent service disruption, thereby resolving the contradiction between efficiency and reliability.
2Reliability
If resource reselection is triggered when first grant is unavailable, then service continuity is improved, but system complexity increases
Solution Approach 1:
The system applies preliminary action by pre-creating multiple grants (second grant, third grant) associated with different beams before the first grant becomes unavailable. When resource reselection is triggered, the system can immediately select from pre-prepared alternatives rather than creating new grants on-demand. This reduces the complexity of the reselection process while ensuring service continuity, as the alternative grants are already configured and ready for use.
Data Source
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AI summary
A method by which a first device performs wireless communication and an apparatus for supporting same are provided. The method may comprise the steps of: generating a first grant on the basis of a first beam for a second device; transmitting, to the second device, control information for scheduling a physical shared channel on a physical control channel on the basis of the first grant generated on the basis of the first beam; transmitting, to the second device, data on the physical shared channel on the basis of the first grant generated on the basis of the first beam; and triggering, on the basis of the first grant generated on the basis of the first beam being unavailable, a resource reselection.