Base Station RLC Serial Number Length Adjustment
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Solution Overview
Problem
In LTE and NR RLC protocols, the fixed serial number length (Sn-FieldLength) can lead to inefficient data processing due to full transmission or reception windows, affecting throughput and latency, while large Sn-FieldLength increases memory overhead, necessitating an adaptive approach to optimize RLC layer performance.
Innovation Solution
A method and system in a base station that adjusts serial number length dynamically based on transmission and reception window parameters, using an adjusting module that increments or decrements Sn-FieldLength based on utilization thresholds and timers to maintain optimal window sizes, thereby optimizing RLC layer performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a small Sn-FieldLength is used, then memory overhead is reduced, but the transmission or reception window fills up quickly causing increased latency and reduced processing rate
Solution Approach 1:
The patent applies dynamics by making the Sn-FieldLength parameter adjustable rather than fixed. The base station dynamically changes the serial number field length according to the UE's throughput conditions, transforming a static protocol parameter into a dynamic one that adapts to changing network conditions, thus resolving the contradiction between memory efficiency and processing speed
Solution Approach 2:
The patent directly changes the parameter Sn-FieldLength based on throughput conditions. When throughput is high, it increases Sn-FieldLength to 18 bits to prevent window fullness and reduce latency; when throughput is low, it decreases to 6 bits to reduce memory overhead. This parameter adjustment mechanism directly resolves the technical contradiction
2Productivity
If a large Sn-FieldLength is used, then the transmission and reception windows can handle high throughput without filling up, but system memory overhead increases affecting system capacity
Solution Approach 1:
The system dynamically adjusts Sn-FieldLength based on real-time throughput monitoring. When high productivity is needed, the parameter is increased to 18 bits; when memory efficiency is prioritized during low throughput, it is reduced to 6 bits. This dynamic adaptation allows the system to achieve high data processing rates only when necessary, thereby resolving the contradiction between productivity and memory overhead
Solution Approach 2:
The patent changes the Sn-FieldLength parameter from a fixed value to an adjustable one that varies with throughput conditions. By monitoring UE throughput and adjusting the parameter accordingly, the system achieves optimal balance between processing capability and memory consumption, resolving the productivity-memory overhead contradiction
3Productivity
If the RLC queue window size is increased to handle high throughput, then data processing rate improves, but system capacity is reduced due to increased memory requirements
Solution Approach 1:
The patent makes the queue window size (determined by Sn-FieldLength) dynamic rather than static. The base station adjusts the window size according to UE throughput conditions, allowing the system to adapt between different capacity requirements. This resolves the contradiction by enabling high data processing rates only when the system has sufficient capacity available
Solution Approach 2:
The patent changes the RLC queue window size parameter by adjusting Sn-FieldLength based on throughput monitoring. When high data processing rate is required and capacity permits, the window size is increased; when system capacity needs to be preserved, the window size is reduced. This parameter adaptation mechanism resolves the contradiction between productivity and system capacity
Data Source
AI summary
In a method for adjusting serial number length, a base station and a computer-readable storage medium, parameters of a transmission window and parameters of a reception window of a user equipment in a confirmation mode of a radio link control (RLC) protocol are acquired; and serial number length of a downlink is adjusted according to the parameters of the transmission window and serial number length of an uplink is adjusted according to the parameters of the reception window.