Uplink Resource Selection in Flexible Duplex Frequency Bands
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Solution Overview
Problem
In full duplex or flexible duplex networks, uplink/downlink transmission directions on different frequency domain resources can overlap, causing uplink channels to be blocked and affecting communication efficiency.
Innovation Solution
A method and apparatus for determining transmission resources in terminals and network side devices, utilizing frequency domain resource type information on a time unit to decide whether to transmit uplink channels and select appropriate frequency domain resources, avoiding overlaps with unavailable resources such as downlink or flexible subbands and guardbands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink channel transmission resources are allocated in full duplex or flexible duplex networks, then communication efficiency should be improved, but resource overlap with other channels prevents uplink transmission
Solution Approach 1:
The patent applies dynamics by making the uplink channel transmission decision flexible based on real-time resource availability. The terminal dynamically determines whether to transmit the uplink channel by checking if the time unit contains available uplink resources, allowing the system to adapt to changing duplex modes and resource allocations rather than following a fixed transmission schedule
Solution Approach 2:
The patent changes the parameter of transmission decision based on resource type information. By evaluating whether the time unit has available uplink resources (changing the resource availability parameter), the system adjusts the transmission behavior accordingly, transitioning from rigid resource allocation to parameter-driven flexible transmission
2Ease of operation
If the terminal transmits uplink channels without checking resource availability, then transmission simplicity is maintained, but communication efficiency decreases due to unavailable resources
Solution Approach 1:
The patent applies preliminary action by having the terminal check resource availability before transmission. The terminal determines in advance whether the time unit contains available uplink resources by obtaining resource type information, and only transmits when resources are available, preventing wasted transmission attempts on unavailable resources
Data Source
AI summary
A transmission resource determining method and device are provided. The transmission resource determining method includes: according to frequency domain resource type information on a time unit of an uplink transmission, determining, by a terminal, at least one of the following: whether to transmit a first uplink channel; and a frequency domain resource for transmitting the first uplink channel.