Sidelink Beam Information Acquisition Using Location Data
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Solution Overview
Problem
In 5G sidelink communication systems, there is a need for effective methods to obtain beam information for transmitting and receiving sidelink control and data information, particularly in scenarios involving analog beamforming, to ensure high data transfer rates and reliable communication, especially in vehicle-to-everything (V2X) applications where wide bandwidths and coverage are required.
Innovation Solution
A method where user equipment (UE) performs sidelink synchronization with another UE, transmits location information, and generates and transmits beam information to facilitate the transmission of sidelink control and data information using specific carriers, allowing for efficient resource allocation and beamforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming and analog beamforming techniques are used to increase transmission distance and decrease propagation loss, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the receiving UE generate beam information in advance based on location information before actual data transmission occurs. This pre-computation of beamforming parameters enables the transmitting UE to directly use the prepared beam information, avoiding real-time complex calculations during transmission and thus improving communication reliability while managing device complexity.
Solution Approach 2:
The receiving UE performs self-service by autonomously generating beam information based on its own location information and the transmitting UE's location information. This self-generated beam information is then provided to the transmitting UE, eliminating the need for complex inter-UE coordination and reducing overall system complexity while maintaining reliable beamformed communication.
2Productivity
If beam information is obtained through location information exchange and beam generation, then beamforming efficiency is improved, but information transmission overhead increases
Solution Approach 1:
The patent extracts only the essential location information (latitude, longitude, altitude) that is strictly necessary for beam generation, rather than transmitting complete channel state information or other redundant data. This selective extraction of critical parameters enables efficient beamforming while minimizing information transmission overhead in the sidelink communication system.
Solution Approach 2:
The receiving UE creates a simplified copy of the beam information derived from location data, which is then transmitted to the transmitting UE. This copied beam information contains only the essential parameters needed for beamforming, avoiding the transmission of full-scale channel measurements and reducing information overhead while maintaining beamforming efficiency.
3Speed
If sidelink synchronization and beam information transmission are performed, then communication speed is improved, but energy consumption increases
Solution Approach 1:
The patent applies preliminary action by performing beam information generation and transmission in advance during the sidelink synchronization phase. This allows the actual data transmission to proceed at high speed using pre-prepared beam information, avoiding energy-intensive real-time beam calculations during data transmission while still achieving fast communication speeds.
Solution Approach 2:
The receiving UE performs self-service by autonomously generating beam information based on location data without requiring iterative signaling or complex feedback loops with the transmitting UE. This self-generated approach reduces the number of energy-consuming transmission rounds while enabling fast beamformed communication, thus improving communication speed with reduced energy consumption.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.