Beam-Based Logical Channel Prioritization for Grant-Matched Destinations
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in beam-based data transmission due to the conventional logical channel prioritization (LCP) process, leading to potential delays and power wastage when grants are generated based on specific beams, even if lower-priority destinations are mapped to those beams.
Innovation Solution
A method and device for wireless communication that involves obtaining configuration information related to beams, generating a grant based on a first beam, and selecting a destination using logical channel prioritization (LCP) while excluding beams associated with lower-priority destinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional logical channel prioritization (LCP) process is used for beam-based data transmission, then all destinations are considered in LCP regardless of beam association, but this leads to transmission delays and power wastage when grants are generated based on specific beams
Solution Approach 1:
The patent applies preliminary action by pre-associating destinations with specific beams before the LCP process. The network configures beam-destination associations in advance, so when a grant is generated for a specific beam, the LCP process already knows which destinations are relevant. This eliminates the need to evaluate all destinations during LCP, reducing processing time and avoiding transmission delays for beam-matched data.
Solution Approach 2:
The patent segments the LCP process by dividing destinations into beam-associated groups. Instead of treating all destinations uniformly, the LCP process is segmented to first identify destinations associated with the granted beam, then perform prioritization only within that subset. This segmentation reduces the computational scope and prevents time wastage on unrelated destinations.
2Reliability
If conventional LCP considers all destinations equally, then comprehensive destination evaluation is performed, but this causes power wastage when grants are beam-specific
Solution Approach 1:
The network performs preliminary configuration of beam-destination associations before the UE executes LCP. This preliminary action ensures that when the UE processes a grant, it can immediately filter destinations based on pre-established beam associations, avoiding unnecessary power consumption from evaluating unrelated destinations while maintaining accurate destination selection.
Solution Approach 2:
The patent applies partial action by having the LCP process consider only the subset of destinations associated with the granted beam, rather than all destinations. This partial evaluation is sufficient for beam-specific grants, reducing power consumption without compromising the reliability of destination selection for the relevant data transmission.
3Productivity
If LCP processes all destinations without beam consideration, then complete destination prioritization is achieved, but beam-based transmission efficiency is reduced
Solution Approach 1:
The patent segments the LCP process into two stages: first, filter destinations based on beam association (using pre-configured mappings), then perform prioritization on the filtered subset. This segmentation simplifies the overall process by reducing the number of destinations requiring full prioritization evaluation, thereby improving beam-based transmission efficiency while maintaining manageable process complexity.
Solution Approach 2:
The network configures beam-destination associations in advance as preliminary information. This preliminary configuration reduces the complexity of the LCP process at the UE by providing pre-filtered destination-beam mappings, allowing the UE to efficiently match grants to destinations without complex real-time analysis, thus improving transmission efficiency.
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 configuration information related to at least one beam; generating a first grant based on a first beam among the at least one beam; and selecting a first destination based on a logical channel prioritization (LCP), wherein the first destination is selected based on excluding a destination related to a beam other than the first beam.