Radio Interface Selection for Low-Delay BSR Transmission
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Solution Overview
Problem
In existing radio interface technologies, when multiple configurations are used for a terminal device, the random selection of a radio interface technology with low priority for buffer status report (BSR) transmission often results in unsuccessful transmission and significant delays due to retransmission, leading to inefficiencies in data sending.
Innovation Solution
The terminal device determines a radio interface technology with an uplink resource and assesses its attributes, such as priority and available resources, before deciding whether to cancel or resend the BSR, ensuring it meets the delay requirements of the logical channels involved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE randomly selects a radio interface technology with low priority for BSR transmission, then the BSR can be sent using available uplink resources, but the transmission may fail and cause large retransmission delays
Solution Approach 1:
The patent changes the selection parameter from random selection to priority-based selection. The UE evaluates the priority attribute of each radio interface technology and selects the one with the highest priority that has available uplink resources, transforming the selection criterion from stochastic to deterministic based on quality attributes
Solution Approach 2:
The UE autonomously evaluates the priority attributes of different radio interface technologies and makes intelligent selection decisions without external intervention. The device serves itself by internally assessing resource availability and priority levels to determine the optimal transmission interface
2Device complexity
If the BSR is canceled immediately after being added to the MAC PDU, then the triggered state is cleared, but retransmission delays increase when the selected radio interface technology has low priority
Solution Approach 1:
The patent introduces feedback mechanisms where the UE monitors whether the BSR was successfully transmitted. Based on this feedback, the UE determines whether to cancel the triggered BSR state or maintain it for potential retransmission, creating a closed-loop control system that adapts to transmission outcomes
Solution Approach 2:
The UE performs preliminary assessment of radio interface priority attributes before selecting the transmission interface. This preliminary action allows the UE to anticipate potential transmission failures and make informed decisions about BSR state management, preventing unnecessary cancellations that would lead to retransmission delays
Data Source
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AI summary
This application provides an information processing method and device. The method includes: determining, by a terminal device from at least one radio interface technology, a first radio interface technology used to send first information, where each of the at least one radio interface technology corresponds to an uplink resource, and the first information includes a size of to-be-sent data of at least one logical channel of the terminal device; and determining, by the terminal device based on the first information and attribute information of the first radio interface technology, whether to cancel the first information that is in a triggered state, where the attribute information of the first radio interface technology includes a priority of the first radio interface technology or an uplink resource corresponding to the first radio interface technology. The method provided in this application improves accuracy of canceling the first information that is in the triggered state, avoids a prior-art process in which the terminal device needs to regenerate the first information, and shortens a data sending delay.