PDSCH Bandwidth Part Hopping for Wireless Traffic Balancing
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Solution Overview
Problem
The increasing demand for faster and more efficient wireless communication systems is challenged by traffic congestion and resource shortages, particularly in supporting a large number of connected devices and varying bandwidth requirements, including those of reduced capability user equipment (UEs).
Innovation Solution
Implementing frequency hopping between multiple bandwidth parts (BWPs) for downlink and uplink transmissions, allowing for dynamic distribution of traffic load and minimizing inter-cell interference, even without explicit indications for BWP changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple connections are supported through a specific bandwidth, then device connectivity is improved, but traffic congestion occurs
Solution Approach 1:
The patent segments the frequency spectrum into multiple bandwidth parts (BWPs), allowing different connections to be distributed across different frequency segments. This segmentation prevents traffic congestion by dividing the traffic load across multiple frequency resources rather than concentrating all traffic through a single bandwidth.
Solution Approach 2:
The patent introduces frequency hopping between multiple BWPs as an additional dimension for traffic distribution. By utilizing the frequency dimension across multiple BWPs rather than relying solely on spatial or temporal dimensions, the system can distribute traffic load more effectively and prevent congestion.
2Adaptability or versatility
If reduced capability UEs use narrow bandwidth, then device compatibility is improved, but traffic load distribution is suboptimal
Solution Approach 1:
The patent applies local quality by allowing different UEs to utilize different BWPs based on their capabilities. Reduced capability UEs can be assigned to specific BWPs that match their narrow bandwidth requirements, while other UEs can utilize wider BWPs. This localized allocation optimizes traffic load distribution across different frequency segments.
Solution Approach 2:
By introducing frequency hopping across multiple BWPs, the patent adds a frequency dimension to traffic load distribution. This allows reduced capability UEs to access the network using their narrow bandwidth while still contributing to overall traffic distribution through frequency diversity, improving both compatibility and load balance.
3Productivity
If frequency hopping between multiple BWPs is implemented, then traffic load distribution is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic frequency hopping between BWPs, where the system can adaptively switch between different frequency segments based on traffic conditions. This dynamic approach improves traffic load distribution while managing complexity through standardized hopping patterns and pre-configured BWP sets that reduce real-time decision complexity.
Data Source
AI summary
Disclosed are a method and an apparatus for transmitting and receiving a radio signal in a wireless communication system. A method of receiving a physical downlink shared channel (PDSCH) according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, configuration information related to a bandwidth part (BWP), wherein the configuration information includes information on a set of a plurality of BWPs; receiving, from the base station, downlink control information (DCI) for scheduling the PDSCH; and receiving, from the base station, the PDSCH based on the DCI.