Terminal Resource Pattern Control for Uplink Downlink Efficiency
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Solution Overview
Problem
In future radio communication systems like NR, the uplink (UL) resources are scarce compared to downlink (DL) resources, leading to potential impairments in system performance such as increased delay and degraded coverage.
Innovation Solution
A terminal is equipped with a receiving section that obtains configuration information for patterns of unavailable DL resources and indication information, allowing it to control DL reception in alternative resources and avoid using resources marked as unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink resources are increased to meet high traffic demands, then resource use efficiency improves, but system complexity and control difficulty increase
Solution Approach 1:
The patent segments the flexible resources into distinct patterns (first pattern for UL, second pattern for DL) that can be independently configured and activated. This segmentation allows the system to efficiently allocate resources without managing a monolithic complex resource pool, resolving the contradiction between resource efficiency and system complexity.
Solution Approach 2:
The patent introduces dynamic activation and deactivation of resource patterns through MAC CE or DCI signaling. This dynamic control enables the system to adapt resource allocation to varying traffic conditions without permanent configuration changes, improving resource efficiency while maintaining manageable system complexity through on-demand adjustments.
2Quantity of substance
If flexible resources are allocated for uplink transmission, then uplink capacity increases, but downlink coverage performance may deteriorate
Solution Approach 1:
The patent applies different resource patterns to different terminal groups or specific terminals based on their traffic needs. Terminals requiring uplink capacity receive the first pattern with flexible resources allocated for UL, while terminals prioritizing downlink coverage receive the second pattern. This localized quality assignment ensures uplink capacity increases for specific users without compromising downlink coverage for others.
Solution Approach 2:
The patent changes the configuration parameters of resource patterns dynamically, allowing the same time-frequency resources to be allocated differently for UL or DL based on activation status. This parameter flexibility enables the system to provide uplink capacity where needed while maintaining downlink coverage performance where required, resolving the contradiction between quantity and reliability.
3Adaptability or versatility
If resource patterns are configured for different terminals, then resource allocation flexibility improves, but configuration complexity increases
Solution Approach 1:
The patent designs universal resource patterns (first and second patterns) that can be applied to multiple terminals with different requirements. Each pattern serves multiple purposes: the first pattern supports UL-heavy traffic, the second supports DL-heavy traffic. This universality allows flexible allocation across different terminals without creating unique complex configurations for each, resolving the contradiction between adaptability and configuration complexity.
Solution Approach 2:
The patent incorporates feedback mechanisms where terminals report their traffic characteristics and channel conditions, and the base station adjusts pattern activation accordingly. This feedback loop enables automated adaptation of resource allocation, reducing manual configuration complexity while maintaining high flexibility in resource distribution across different terminal types and conditions.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives at least one of configuration information of a pattern of resources unavailable for a DL in certain time resources and indication information related to the pattern of the resources, and a control section that performs control to perform DL reception in resources other than the resources unavailable for the DL, and performs control not to perform the DL reception in the resources unavailable for the DL, based on at least one of the configuration information and the indication information. According to one aspect of the present disclosure, use efficiency of resources can be enhanced.