Relay UE Uplink Buffer Control for Sidelink Data Forwarding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The occurrence of uplink buffer overflow and communication disconnection in relay user equipment due to insufficient uplink communication band when relaying data from remote user equipment to a base station in a mobile communication system.
Innovation Solution
Implementing communication control methods in relay user equipment to manage data transmission by transmitting restriction information, desire information, or request information to regulate the amount of data transmitted by the remote user equipment, thereby preventing buffer overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the relay user equipment transmits data received from remote user equipment to the base station on the uplink, then communication relay function is improved, but uplink buffer overflow occurs due to insufficient uplink communication band
Solution Approach 1:
The relay user equipment transmits restriction information to the remote user equipment based on the buffer state of the uplink. This feedback mechanism allows the relay to regulate the amount of data transmitted by the remote user equipment according to real-time uplink conditions, preventing buffer overflow while maintaining communication relay functionality.
Solution Approach 2:
The system dynamically changes the data transmission parameter (amount of data) by transmitting restriction information from the relay user equipment to the remote user equipment. This parameter adjustment ensures that the uplink buffer does not overflow while maintaining efficient communication relay operation.
2Reliability
If the relay user equipment regulates data transmission amount by transmitting restriction information, then uplink buffer overflow is prevented, but communication efficiency may be reduced
Solution Approach 1:
The restriction information transmitted by the relay user equipment is not fixed but dynamically adjusted based on the uplink buffer state. When the buffer is less full, more data can be transmitted; when the buffer is fuller, less data is transmitted. This dynamic adjustment maintains communication efficiency while preventing buffer overflow.
Solution Approach 2:
The feedback mechanism ensures that the data transmission amount is continuously adjusted according to actual uplink conditions, optimizing communication efficiency while preventing buffer overflow. The system responds to real-time buffer state changes to maintain optimal performance.
3Ease of operation
If the relay user equipment transmits desire information to regulate data transmission, then data transmission control is improved, but system complexity increases
Solution Approach 1:
The relay user equipment autonomously determines and transmits restriction information based on its own buffer state without requiring complex external control. This self-service approach simplifies system complexity while maintaining effective data transmission control.
Solution Approach 2:
The feedback-based control mechanism uses simple buffer state information to automatically regulate data transmission. This approach provides effective control without requiring complex system architecture, as the relay simply responds to its own buffer conditions.
Data Source
AI summary
A communication control method includes receiving, by a relay user equipment, data transmitted from a remote user equipment on a sidelink, transmitting, from the relay user equipment to a base station and on an uplink, the data received from the remote user equipment, and transmitting, from the relay user equipment to the remote user equipment, restriction information restricting an amount of data to be transmitted by the remote user equipment.