Beam Link Failure Reporting via Pre-allocated Uplink Resources
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Solution Overview
Problem
High-band communication systems face challenges with link attenuation and beam link failure (BLF) due to terminal movement and channel shielding, leading to reduced communication reliability and timeliness, with existing technologies lacking effective solutions to address these issues.
Innovation Solution
A method and apparatus for reporting information, where a first communication node determines a BLF condition and generates a report to notify a second communication node, using an allocated uplink resource to transmit this information, allowing for timely notification and accelerated beam combination recovery, including the use of uplink reference signals and control signaling to prioritize beam recovery signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If directional beam communication is used to obtain link gain, then antenna gain and signal transmission loss resistance are improved, but signal diversity is reduced and robustness deteriorates
Solution Approach 1:
The patent segments the uplink resources into two distinct types: first uplink resources for beam recovery reporting and second uplink resources for other signals. This segmentation allows the beam recovery reporting to be transmitted independently without being affected by other uplink signals, thereby resolving the contradiction between maintaining directional beam gain and ensuring communication robustness during beam failures.
2Reliability
If beam link failure occurs due to terminal movement or channel shielding, then communication reliability deteriorates, but re-communication timeliness cannot be ensured
Solution Approach 1:
The patent implements preliminary action by pre-configuring first uplink resources specifically for beam recovery reporting before beam link failure occurs. When beam failure is detected, the terminal can immediately use these pre-allocated resources to report the failure condition, eliminating the need for resource allocation delays and ensuring timely re-communication establishment.
Solution Approach 2:
The patent establishes a feedback mechanism where the terminal monitors beam link quality and provides timely feedback about beam failure conditions through the first uplink resources. This feedback loop enables the network to quickly detect and respond to beam failures, maintaining communication reliability while minimizing time delays through rapid information exchange.
3Loss of time
If first uplink resource is allocated for beam recovery reporting, then reporting timeliness is improved, but resource collision with other signals may occur
Solution Approach 1:
The patent segments uplink resources into distinct first and second resources with different functions. The first uplink resources are exclusively allocated for beam recovery reporting, while second uplink resources are used for other signals. This clear segmentation eliminates resource collisions by ensuring that beam recovery reporting and other uplink signals do not contend for the same time-frequency resources.
Data Source
AI summary
Provided is a method for reporting information. The method includes following steps: determining that a beam link failure (BLF) condition is true; generating a first type of report information, where the first type of report information is at least used for notifying a second communication node of BLF; transmitting the first type of report information to the second communication node through an allocated first uplink resource. Provided also are a method for receiving information, apparatus for reporting information, apparatus for receiving information and computer readable storage medium.