Radio Resource Management for Seamless Video Streaming
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile telecommunications networks with small cells, ensuring continuous and high-quality video streaming is challenging, especially when users move quickly, as it leads to frequent session handovers and increased operational signaling load, with existing solutions being inadequate in managing resource allocation and data transfer between cells.
Innovation Solution
A method for dynamically adjusting the service area by estimating a mobile terminal's movement parameters, preloading data to potential cells, and adjusting the service area shape based on speed and trajectory variance to ensure continuous data transmission, reducing handover failures and resource wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small cells are used to provide high-quality video streaming service, then video quality and service coverage are improved, but handover frequency and signaling load increase
Solution Approach 1:
The patent pre-loads video data segments into base station buffers before the mobile terminal actually needs them. By predicting the terminal's movement trajectory and pre-positioning data in target cells, the system prepares for handovers in advance, reducing the impact of frequent handovers on video streaming quality in small-cell networks
2Stability of the object's composition
If data is distributed to all neighboring base stations, then data transmission continuity is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements selective data distribution by predicting the mobile terminal's specific movement trajectory and only pre-loading data into base stations along the predicted path. This localized approach ensures data transmission continuity for the specific terminal while avoiding wasteful resource allocation to base stations that will not serve the terminal, thus improving resource allocation efficiency
Solution Approach 2:
The system performs preliminary identification of target cells based on movement prediction, then selectively pre-loads data only into those specific base stations. This preliminary action avoids unnecessary data distribution to all neighboring base stations, maintaining transmission continuity while reducing resource waste
3Reliability
If service area is expanded to cover potential terminal positions, then handover failure rate is reduced, but resource consumption increases
Solution Approach 1:
The patent uses movement parameter estimation to predict the terminal's future position and pre-loads data into those specific target cells before handover occurs. This preliminary positioning approach reduces handover failures by ensuring data availability in advance, while consuming resources only for predicted target cells rather than expanding service area to all possible locations
Solution Approach 2:
The system dynamically adjusts the service area based on estimated movement parameters such as speed and direction. By changing the service area parameters adaptively rather than using a fixed expanded area, the system reduces handover failures while optimizing resource consumption to match actual terminal movement patterns
Data Source
Figure 1~3
Figure 2
Figure 4
AI summary
A method for managing radio resources in a cellular radio communication network infrastructure comprising a plurality of base stations serving cells, at least some of the base stations being capable of transmitting streaming data to mobile radio communication terminals on sets of cells, known as service areas, which method comprises the following steps, in relation to a mobile radio communication terminal to which the streaming data are transmitted by the base station(s) serving the service area (SAt) within whose coverage the terminal is located: - estimating (S1) a movement parameter of the mobile radio communication terminal (TD), - adjusting (S2) the service area (SAt) as a function of the estimate of the movement parameter of the mobile radio communication terminal (TD), - identifying (S3) cells ({SC}Ni=1) of the service area (SAt) in which the mobile radio communication terminal (TD) might most likely be located at a later moment, and - transmitting (S4) data not yet transmitted to the radio communication terminal, to the base stations serving the identified cells. ({SC}Ni=1).