Uplink BFRQ Priority Handling for High-Frequency Beam Recovery
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Solution Overview
Problem
In high-frequency band communications systems, beam failure recovery mechanisms face challenges in efficiently transmitting beam failure recovery request (BFRQ) information due to conflicts with other uplink information, leading to potential delays in signal recovery.
Innovation Solution
A priority relationship is established for uplink information, including BFRQ and other uplink information, to ensure efficient transmission of BFRQ information by determining the priority order and discarding or adjusting conflicting information based on resource availability and priority settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure recovery request information is transmitted using existing uplink transmission mechanisms, then the BFRQ information can be sent, but it conflicts with other uplink information transmission, causing delays in signal recovery
Solution Approach 1:
The patent introduces a dedicated physical uplink control channel (PUCCH) resource specifically for BFRQ transmission, acting as an intermediary channel that separates BFRQ traffic from other uplink information. This dedicated resource prevents conflicts with data transmission on PUSCH and other control information, ensuring timely delivery of beam failure recovery requests without compromising other uplink communications.
Solution Approach 2:
The patent modifies the transmission parameters by defining specific PUCCH resources with dedicated time-frequency locations and sequence structures for BFRQ. By changing the channel assignment parameters from shared resources to dedicated resources, the system enables reliable and timely BFRQ transmission that does not compete with other uplink information, directly resolving the timing conflict.
2Productivity
If multiple uplink information types are transmitted simultaneously, then communication efficiency is maintained, but resource conflicts occur leading to information loss or delays
Solution Approach 1:
The patent segments the uplink transmission resources by creating dedicated PUCCH resources specifically for BFRQ, separating them from PUSCH data transmission resources and other control information resources. This segmentation ensures that BFRQ information has its own dedicated transmission path, preventing resource conflicts and information loss while maintaining overall uplink transmission efficiency through parallel operation of multiple segmented channels.
Data Source
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AI summary
Embodiments of this disclosure provide a transmission method, a terminal, and a network device. The method includes: determining, based on a first priority relationship, third uplink information from first uplink information and second uplink information, where the first uplink information is first beam failure recovery request BFRQ information; and transmitting the third uplink information by using a first uplink resource.