Bandwidth Part Communication States for Adaptive 5G NR Resource Allocation
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in efficiently managing bandwidth parts (BWPs) for communication, leading to increased complexity, power consumption, and spectrum usage inefficiencies.
Innovation Solution
The configuration of multiple BWPs with distinct communication states, including basis and supplementary BWPs, allows for adaptive resource allocation and scheduling, reducing power consumption and spectrum usage by allocating fewer resources for signaling and channel measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bandwidth parts (BWPs) are configured for different communication states, then adaptability and resource allocation efficiency are improved, but device complexity and configuration overhead increase
Solution Approach 1:
The patent segments the bandwidth into multiple bandwidth parts (BWPs), where each BWP corresponds to a specific communication state (e.g., active, inactive, dormant). This segmentation allows the system to allocate resources efficiently according to the current communication state without requiring the entire bandwidth to be configured and managed at once, thus improving adaptability while controlling complexity through modular organization
Solution Approach 2:
The patent implements dynamic BWP configuration where the network can activate or deactivate specific BWPs based on communication state transitions. The UE dynamically switches between different BWP configurations corresponding to different states (active, inactive, dormant), allowing the system to adapt to changing communication requirements without permanent configuration of all possible states, thereby balancing adaptability with manageable complexity
2Reliability
If resources are allocated for all communication states, then reliability and service continuity are improved, but power consumption and spectrum usage efficiency deteriorate
Solution Approach 1:
The patent extracts and isolates the resource allocation to only the currently active BWP corresponding to the active communication state. When the UE transitions to inactive or dormant states, the corresponding BWPs are deactivated and resources are not allocated. This extraction principle ensures that resources are only consumed when needed for active communication, maintaining service continuity during active states while dramatically reducing power consumption during inactive or dormant states
Solution Approach 2:
The patent implements periodic state transitions where the UE alternates between active, inactive, and dormant states based on communication activity. During active periods, full resources are allocated; during inactive and dormant periods, resources are released. This periodic activation pattern ensures service continuity when needed while minimizing average power consumption and spectrum usage over time
3Measurement precision
If full bandwidth is used for signaling and channel measurements, then measurement precision and communication reliability are improved, but spectrum usage efficiency and power consumption worsen
Solution Approach 1:
The patent applies local quality by configuring channel state information reference signals (CSI-RS) and other measurement resources only within the active BWP corresponding to the current communication state, rather than across the entire bandwidth. This localized measurement approach maintains measurement precision within the relevant frequency range while significantly improving spectrum usage efficiency by leaving other bandwidth portions available for data transmission or other purposes
Solution Approach 2:
The patent implements partial action by allocating measurement resources (such as CSI-RS, SRS, and reference signals) only to the extent needed for the active communication state. During inactive or dormant states, measurement resources are reduced or eliminated entirely. This partial allocation strategy maintains sufficient measurement precision for active communication while avoiding excessive resource consumption that would reduce spectrum efficiency
Data Source
AI summary
The present disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, directed to configuration of communication states for bandwidth parts (BWPs) in which a network node may communicate with a user equipment (UE). Such communication states may be implemented to conserve power and serve cell traffic. In some aspects, an apparatus may be configured to obtain an indication associated with configuring a first set of BWPs from a network node, each of the first set of BWPs corresponding to a first communication state of a set of communication states for the network node. The apparatus may be further configured to communicate with the network node on a set of resources in one of the first set of BWPs, the set of resources being associated with the first communication state of the set of communication states.