Full-Duplex Cellular Scheduling Pairing Sets
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Solution Overview
Problem
Existing full-duplex cellular networks are limited in spectrum utilization efficiency as they typically allocate one spectrum resource for either uplink or downlink data transmission at a time, failing to meet increasing demands for spectrum utilization.
Innovation Solution
A method and apparatus for scheduling user equipment in full-duplex cellular networks, where a pairing set is determined for each user equipment based on preset interference thresholds, allowing another user equipment to perform data transmission in an opposite direction, thereby optimizing spectrum resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If one spectrum resource is used to schedule only uplink or downlink data transmission of one piece of user equipment at the same time, then the scheduling simplicity is maintained, but the spectrum utilization rate is limited
Solution Approach 1:
The patent segments the spectrum resource scheduling by establishing pairing sets that group user equipment based on their spatial relationships and interference characteristics. This segmentation allows the system to manage complex full-duplex scheduling by breaking it down into manageable pairs that can be scheduled simultaneously in opposite directions without excessive interference.
Solution Approach 2:
The patent implements dynamic scheduling by allowing the base station to flexibly assign spectrum resources to different user equipment pairs based on real-time conditions. The pairing sets are dynamically formed and modified according to channel conditions, user equipment mobility, and interference levels, enabling adaptive full-duplex operation that maximizes spectrum utilization while managing complexity through dynamic reconfiguration.
2Productivity
If full-duplex technology is implemented with self-interference cancellation, then bidirectional communication in a single frequency band is achieved, but the spectrum utilization efficiency is still limited by traditional one-ue-one-direction scheduling
Solution Approach 1:
The patent applies universality by creating a flexible pairing set mechanism that can accommodate multiple user equipment combinations within the same frequency band. The base station can dynamically form different pairs from the available user equipment, allowing a single spectrum resource to serve multiple functions simultaneously - supporting both uplink and downlink transmissions for different users through coordinated full-duplex operation.
Solution Approach 2:
The patent utilizes parameter changes by adjusting pairing parameters such as spatial distance, channel conditions, and interference levels to optimize spectrum utilization. The base station dynamically modifies these parameters when forming pairing sets, allowing the system to adapt to changing network conditions and maximize the number of simultaneous bidirectional communications within a given spectrum resource.
3Productivity
If multiple user equipment are scheduled for data transmission in the same frequency band, then spectrum utilization is improved, but the interference between user equipment increases
Solution Approach 1:
The patent applies local quality by forming pairing sets that group user equipment with specific local characteristics - namely, user equipment that are spatially separated and have favorable channel conditions. By carefully selecting pairs based on their local spatial relationships and interference profiles, the system can schedule multiple users in the same frequency band while controlling interference through localized optimization of pair compositions.
Solution Approach 2:
The base station acts as an intermediary that mediates between the desire to increase spectrum utilization and the need to control interference. It uses the pairing set mechanism to selectively assign user equipment to complementary pairs, where the base station actively manages and coordinates the transmissions to ensure that the benefits of multi-user scheduling are achieved while interference is kept within acceptable levels through coordinated full-duplex operation.
Data Source
AI summary
The present invention discloses a method for scheduling user equipment on a full-duplex cellular network, including: determining a pairing set for each piece of user equipment in a cell, where a pairing parameter of the piece of user equipment and any piece of user equipment that is in the pairing set of the piece of user equipment meets a preset threshold; and selecting, when a piece of user equipment is scheduled to perform data transmission, another piece of user equipment from a pairing set of the piece of user equipment to perform data transmission in an opposite direction. Embodiments of the present invention further provide a corresponding apparatus. According to the technical solution of the present invention, existing spectrum resources can be utilized more thoroughly and spectrum utilization efficiency of wireless access can be improved.