Wireless Relay Link Scheduling for Prioritized Uplink Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing time division multiplexing between forwarding operations on a forwarding link and transmission operations on a control link, particularly in scenarios requiring high reliability and low latency.
Innovation Solution
A method and device for configuring time resources on which forwarding and transmission operations are performed, allowing prioritization based on the type or payload of uplink signals, including uplink control information, dynamic or configured grants, and random access channels, to optimize time division multiplexing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If time division multiplexing is used between forwarding operation on forwarding link and transmission operation on control link, then resource efficiency is improved, but transmission delay may increase
Solution Approach 1:
The patent applies dynamics by making the TDM configuration adjustable and adaptive. The base station can dynamically configure the first time resource for forwarding operations and the second time resource for control link transmissions, allowing the system to optimize the balance between resource efficiency and transmission delay based on current network conditions and traffic patterns.
Solution Approach 2:
The patent changes parameters by allowing flexible configuration of time resources. The base station can modify the timing parameters for forwarding and control link operations, and the device can adjust its behavior based on the type or payload of uplink signals, thereby optimizing the trade-off between multiplexing efficiency and transmission timing.
2Loss of time
If uplink signal transmission is prioritized during overlapping time resources, then control operation delay is minimized, but forwarding operation may be interrupted
Solution Approach 1:
The patent applies preliminary action by having the base station configure time resources in advance. The base station determines the first time resource for forwarding operations and the second time resource for control link transmissions before actual transmission occurs, allowing the device to prepare and prioritize transmissions appropriately without interrupting forwarding operations unnecessarily.
Solution Approach 2:
The patent uses feedback mechanisms where the device receives resource allocation information from the base station about the second time resource for control link transmissions. This feedback allows the device to determine whether to perform uplink signal transmission with priority over forwarding operations based on the configured time resources and signal type.
3Device complexity
If strict time division multiplexing is enforced, then resource allocation is simplified, but transmission flexibility is reduced
Solution Approach 1:
The patent makes the TDM system dynamic by allowing the base station to configure time resources flexibly based on actual transmission needs. The device can adapt its behavior based on the type or payload of uplink signals, maintaining simplicity in the basic TDM structure while introducing flexibility where needed.
Solution Approach 2:
The patent applies local quality by allowing different treatment of uplink signals based on their type or payload. The device determines whether to prioritize transmission based on specific characteristics of the uplink signal, such as whether it contains uplink control information or is a configured grant, thereby maintaining simple overall resource allocation while providing localized flexibility.
Data Source
AI summary
Disclosed are a method by which a device having a forwarding link for forwarding signals received from a control link and a terminal communicates with a base station in a wireless communication system, and a device therefor, according to various embodiments. Disclosed are the method and the device therefor, the method comprising the steps of: receiving a configuration of a first time resource in which a forwarding operation for the forwarding link is performed through the control link; receiving resource allocation information about a second time resource in which transmission of an uplink signal for the control link is performed; and determining whether the transmission of the uplink signal is performed with priority over a forwarding operation in the second time resource, which overlaps with the first time resource on the basis of the type of uplink signal or payload.