Ground Station Assisted Satellite Random Access Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In satellite communication systems, user equipment faces challenges in acquiring control information efficiently, leading to high transmission power consumption and time delays, especially when multiple user equipment units acquire similar control information from satellite equipment.
Innovation Solution
An electronic equipment on the ground assists user equipment by configuring and sending control information related to data transmission, such as time advance, uplink resources, and uplink transmission power, thereby reducing the need for direct acquisition from satellite equipment, minimizing redundant information retrieval and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment directly communicates with satellite equipment to acquire control information, then the user equipment can obtain necessary transmission parameters, but the transmission power consumption increases and time delay occurs
Solution Approach 1:
The patent introduces a ground station as an intermediary between user equipment and satellite equipment. The ground station receives control information from the satellite, processes it, and forwards it to user equipment. This mediator reduces the direct communication distance and power consumption while maintaining reliable control information delivery.
Solution Approach 2:
The patent extracts the control information acquisition function from direct satellite-user equipment communication and separates it into a ground station-assisted process. By taking out this function and handling it through ground infrastructure, the system reduces the energy burden on mobile user equipment.
2Reliability
If multiple user equipments acquire control information directly from satellite equipment, then each user can obtain necessary parameters, but redundant information retrieval occurs and overhead increases
Solution Approach 1:
The patent merges multiple control information requests from different user equipments into a single ground station processing operation. The ground station receives control information once from the satellite and distributes it to multiple users, eliminating redundant retrieval and reducing overall time delay.
Solution Approach 2:
The ground station performs preliminary processing of control information before distributing it to user equipments. By preparing and validating control information in advance at the ground station, the system reduces the time each user equipment would otherwise spend on individual acquisition and validation processes.
3Ease of operation
If user equipment sends random access requests to satellite equipment, then the user can initiate communication, but the transmission distance causes increased power consumption and delay
Solution Approach 1:
The ground station serves as an intermediary for random access requests. User equipment sends access requests to the ground station instead of directly to the satellite, significantly reducing transmission distance and time delay while maintaining the ability to initiate communication.
Data Source
AI summary
An electronic equipment, a user equipment, a wireless communication method, and a storage medium, the electronic equipment comprising a processing circuit and being configured to: receive from a user equipment a random access request message that is expected to access a satellite equipment; and in response to the random access request message, send to the user equipment the advance in timing between the user equipment and the satellite equipment to be accessed. By using said electronic equipment, user equipment, wireless communication method, and storage medium, a user equipment in a satellite communication system may more quickly and efficiently acquire control information relating to uplink transmission.