Base Station Handover via Load and Access Control Feedback
Solution Overview
Problem
The existing mobility procedures in 3GPP mobile telecommunication networks are hindered by time-consuming resource checking and access control/membership verification processes, leading to delays and energy consumption when transferring mobile communication devices between base stations, especially when insufficient resources or access control failures occur.
Innovation Solution
A communication system that includes a first base station component capable of obtaining load and access control information from a second base station component to determine the likelihood of successful transfer, allowing for informed decision-making on initiating mobility procedures, including comparing frequency bands and using RRC messages for handover, and acquiring system information through NMM, OAM, or SON mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource checking and access control verification are performed during mobility procedures, then access control and membership verification are ensured, but the process becomes time-consuming and causes delays
Solution Approach 1:
The patent applies preliminary action by having the target base station perform resource checking and access control verification before the actual mobility procedure is executed. The source base station obtains information about available resources and access control status in advance, allowing the mobility procedure to be initiated only when conditions are favorable, thus reducing overall processing time while maintaining reliability.
Solution Approach 2:
The patent implements feedback mechanisms where the source base station receives information from the target base station about resource availability and access control status. This feedback loop allows the source base station to make informed decisions about whether to initiate mobility procedures, avoiding unnecessary signaling and delays while ensuring successful access control verification.
2Reliability
If resource checking is performed at the target base station, then sufficient resources are verified, but the process becomes more complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by performing resource checking at the target base station before the mobility procedure is initiated. The source base station obtains information about resource availability in advance, which simplifies the overall process by avoiding repeated resource checking during the mobility procedure execution.
Solution Approach 2:
The patent uses an intermediary approach where the source base station acts as a mediator that obtains resource information from the target base station and uses this information to make decisions about initiating mobility procedures. This intermediary role simplifies the complexity by centralizing the decision-making logic at the source base station.
3Reliability
If access control and membership verification are performed during mobility, then access control is ensured, but energy consumption increases
Solution Approach 1:
The patent applies preliminary action by performing access control and membership verification before the mobility procedure is executed. The source base station obtains access control information from the target base station in advance, allowing it to decide whether to initiate mobility procedures only when access control conditions are favorable, thus reducing unnecessary energy consumption.
Solution Approach 2:
The patent implements feedback mechanisms where the source base station receives access control information from the target base station and uses this feedback to make informed decisions about initiating mobility procedures. This feedback loop reduces energy consumption by avoiding unnecessary signaling and verification processes when access control conditions are not met.
4Adaptability or versatility
If mobility procedures are initiated without checking success likelihood, then mobility flexibility is maintained, but unnecessary signaling and delays occur
Solution Approach 1:
The patent implements feedback mechanisms where the source base station receives information from the target base station about resource availability and access control status. This feedback allows the source base station to make informed decisions about whether to initiate mobility procedures, avoiding unnecessary signaling and delays while maintaining mobility flexibility when conditions are favorable.
Solution Approach 2:
The patent applies preliminary action by having the source base station obtain information about target base station conditions before initiating mobility procedures. This preliminary information gathering allows the system to maintain flexibility by initiating procedures only when conditions are met, thus avoiding unnecessary signaling delays.
Data Source
AI summary
A communication system includes a communication network including a plurality of communication cells, a plurality of mobile communication devices each operable to connect into the communication network via at least one of the communication cells, and a communication apparatus for providing at least one of the communication cells. The communication apparatus includes first and second base station functions each operable to acquire a congestion status and access control information for the other base station.