Buffer State Reporting Trigger Mode for LTE Resource Allocation
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Solution Overview
Problem
In LTE networks, existing methods lack an efficient mechanism for dynamically allocating network resources based on the buffer state of logical channels in user equipment (UE), leading to suboptimal service data transmission due to inadequate buffer state reporting mechanisms.
Innovation Solution
A method and apparatus for sending buffer state reports based on trigger modes, where the UE determines the logical channel for service data transmission and acquires a buffer state report trigger mode from a trigger mode relationship table, and sends the buffer state to the access network device according to the configured trigger mode, which can be triggered by new data arrival, a predetermined threshold, or high priority service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If buffer state reports are sent frequently to enable dynamic resource allocation, then resource allocation efficiency is improved, but signaling overhead and network resource consumption increase
Solution Approach 1:
The patent changes the parameter of buffer state reporting from continuous/frequent reporting to event-triggered reporting. The UE monitors buffer state changes and only sends reports when specific conditions are met (buffer state changes, new data arrives, or threshold is reached), thereby reducing signaling overhead while maintaining effective resource allocation
Solution Approach 2:
The patent implements dynamic buffer state reporting where the reporting behavior adapts based on actual buffer conditions. The UE dynamically determines whether to send a buffer state report based on current buffer state, trigger conditions, and service requirements, making the reporting mechanism flexible rather than static
2Adaptability or versatility
If buffer state reporting is triggered by multiple conditions (new data, threshold, priority), then service quality for different applications is improved, but the complexity of the reporting mechanism increases
Solution Approach 1:
The patent segments the buffer state reporting mechanism into distinct trigger conditions: new data arrival trigger, buffer threshold trigger, and high priority trigger. Each trigger type has specific conditions and handling procedures, allowing the system to accommodate different service requirements while maintaining clear, separate processing logic for each trigger type
Solution Approach 2:
The patent establishes predetermined buffer thresholds and trigger conditions in advance through RRC configuration. The UE and network device pre-configure the reporting criteria, so when buffer state changes occur, the decision to report is made based on pre-established rules rather than complex real-time analysis, reducing operational complexity
3Speed
If buffer state reports are sent immediately when buffer state changes, then resource allocation responsiveness is improved, but unnecessary reports are transmitted consuming network resources
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors buffer state changes and compares them against configured thresholds and trigger conditions. The buffer state reporting is based on feedback from buffer state monitoring, ensuring reports are sent only when meaningful changes occur that warrant network resource reallocation
Solution Approach 2:
The patent uses partial action by not reporting every buffer state change, but only those that meet specific trigger conditions (threshold exceeded, new high-priority data, etc.). This selective reporting approach sends enough information to maintain effective resource allocation without transmitting excessive unnecessary reports
Data Source
AI summary
A method for sending buffer state includes: determining a logical channel of a user equipment (UE) for transmitting service data; acquiring a buffer state report trigger mode corresponding to the logical channel based on a trigger mode relationship table, the trigger mode relationship table comprising logical channels in the UE and buffer state report trigger modes corresponding to the logical channels; and sending the buffer state corresponding to the logical channel to an access network device based on the buffer state report trigger mode.