Uplink Transmission Merging LTE NR Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the context of 5G dual connectivity, there is no existing solution to implement uplink information transmission between LTE and NR carriers without interference, which affects the receiving accuracy of downlink receivers for both LTE and NR carriers due to harmonics or intermodulation interference.
Innovation Solution
A method and system for uplink information transmission where a first access network device configures a target carrier for both LTE and NR uplink information transmission, allowing simultaneous transmission of first and second uplink information on a single target carrier, avoiding interference by using different communication protocols and channels for LTE and NR communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device transmits both first uplink information on LTE carrier and second uplink information on NR carrier simultaneously, then the uplink information transmission capability is improved, but harmonics or intermodulation interference occurs between the two carriers
Solution Approach 1:
The patent merges the transmission of first uplink information (corresponding to LTE downlink) and second uplink information (corresponding to NR downlink) onto a single target carrier. The terminal device transmits both types of uplink information simultaneously on the same carrier using different time-frequency resources or multiplexing schemes, thereby avoiding the interference that would occur from transmitting on two separate carriers while maintaining dual connectivity functionality.
2Object-generated harmful factors
If the terminal device transmits first uplink information and second uplink information on separate carriers, then interference between carriers is avoided, but the receiving accuracy of downlink receivers deteriorates
Solution Approach 1:
By combining the transmission of both uplink information types on a single target carrier, the patent ensures that the terminal device can properly respond to downlink information from both LTE and NR networks. This merging approach maintains the accuracy of downlink reception by enabling timely uplink feedback (such as ACK/NACK) without the interference problems of separate carrier transmission.
3Adaptability or versatility
If the terminal device implements dual connectivity with both LTE and NR carriers, then the communication capability is improved, but the device complexity increases
Solution Approach 1:
The patent reduces terminal device complexity by merging the uplink transmission functionality for both LTE and NR carriers onto a single target carrier. Instead of managing separate transmission paths, frequency synthesizers, and power amplifiers for two carriers, the terminal uses one carrier for all uplink information, significantly simplifying the radio frequency front-end and baseband processing while maintaining dual connectivity adaptability.
Data Source
AI summary
Embodiments of the present disclosure provide a method, apparatus and a system for uplink information transmission relating to the field of communications. The method includes: transmitting, by a first access network device, first configuration information to a second access network device, where the first configuration information is used to indicate a resource in a target carrier, and the second access network device is configured to receive, in the resource, second uplink information transmitted by a terminal device; transmitting on a first carrier, by the first access network device, first downlink information to the terminal device based on a first communication protocol; receiving on the target carrier, by the first access network device, first uplink information transmitted by the terminal device.