Master Base Station Conditional Data Forwarding for Resource Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the unnecessary request for data forwarding from a secondary base station to a master base station can delay the release of resources and disrupt efficient communication due to situations where user equipment data is not needed, such as disconnection.
Innovation Solution
A method where the first base station determines whether to request data forwarding from the second base station based on conditions like measurement results, handovers, or user inactivity, ensuring that data forwarding is only initiated when necessary, thereby optimizing resource allocation and communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the master base station requests the secondary base station to forward data of the UE to the MBS, then data can be transferred to ensure communication continuity, but the release of the SBS and X2 connection is delayed causing resource allocation inefficiency
Solution Approach 1:
The patent applies dynamic decision-making by introducing a determination mechanism that evaluates whether data forwarding is actually needed before initiating the forwarding process. The master base station dynamically assesses conditions such as UE connection status, data buffer status, and communication requirements to decide whether to request data forwarding. This dynamic approach allows the system to adapt to different scenarios: when UE disconnects or has no data, forwarding is avoided and resources are released immediately; when UE requires continuous communication, forwarding is initiated to maintain service. This resolves the contradiction by making the data forwarding operation conditional rather than automatic, thus preventing unnecessary delays in resource release while ensuring communication continuity only when required.
2Measurement precision
If the master base station periodically receives measurement reports and releases SCG when cell quality degrades, then communication quality is maintained, but unnecessary data forwarding requests are generated causing communication delays
Solution Approach 1:
The patent implements a feedback mechanism where the master base station receives measurement reports from the UE regarding cell quality and SCG status. This feedback loop enables the system to make informed decisions about data forwarding. When the measurement report indicates that the UE has disconnected or the SCG is being released due to quality issues, the master base station uses this feedback information to determine that data forwarding is unnecessary. The feedback from measurement reports thus serves as a trigger to avoid initiating unnecessary data forwarding requests, preventing communication delays while maintaining quality monitoring.
3Reliability
If the SeNB transfers downlink data to the MeNB upon receiving release request, then data is not lost, but the transfer process and subsequent release procedures extend communication interruption time
Solution Approach 1:
The patent applies preliminary action by having the secondary base station prepare data for potential forwarding in advance, but only actually executing the forwarding operation when the master base station's determination confirms it is necessary. The SeNB maintains data buffers and readiness to transfer, but the actual transfer action is conditioned on the MBS's assessment of whether UE communication continuity is required. This preliminary preparation without automatic execution allows the system to quickly initiate forwarding when needed while avoiding unnecessary transfer operations that would extend communication interruption time.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A first BS of handling communication comprises instruction of connecting to a communication device; transmitting an addition request to a second BS; receiving an addition request acknowledgement comprising a SCG configuration configuring a SCG from the second BS; transmitting a RRC message comprising the SCG configuration to the communication device; receiving a RRC complete message from the communication device; performing a determination of a release of the second BS for the communication device; generating a release request, wherein the first BS requests a data forwarding in the release request if the release is caused by at least one measurement result of the SCG, a handover, a SCG failure or a MCG failure, and the first BS does not request the data forwarding in the release request if the release is caused by a RRC connection release or a user inactivity; and transmitting the release request to the second BS.