Beam Pair Adjustment for High-Speed 5G mmWave Communication
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Solution Overview
Problem
In 5G mmWave communication systems, the beamforming technology used for high-frequency transmission is affected by changes in the relative location between the base station and user equipment (UE) due to high-speed movement, leading to suboptimal transmission performance if the beam pair determined by initial beam correspondence methods does not adapt quickly enough.
Innovation Solution
A method is introduced to determine the optimal matching beam pair for high-speed scenarios by adjusting the initial beam pair using beam offset configuration information, which includes target beam offset information and time information, allowing the UE and base station to switch to a new operating mode and adjust their beam pairs without real-time beam scanning, using either additional beam scanning or a preset model for beam offset prediction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If beam correspondence method is used to determine the optimal beam pair, then the control time for beam selection is shortened, but the transmission performance deteriorates when the UE moves at high speed due to changes in relative location
Solution Approach 1:
The patent applies preliminary action by pre-determining beam offset configuration information before the UE enters high-speed movement. The base station obtains this information in advance and uses it to adjust the initial matching beam pair when high-speed mode is detected, eliminating the need for real-time beam scanning while maintaining transmission performance during high-speed movement.
2Reliability
If real-time beam scanning is performed to adapt to high-speed movement, then the transmission performance is maintained, but the power consumption increases
Solution Approach 1:
The patent uses preliminary action by pre-obtaining beam offset configuration information and preparing adjustment parameters before high-speed movement occurs. When the UE switches to high-speed mode, the system directly applies pre-computed beam offset values rather than performing real-time scanning, significantly reducing power consumption while maintaining performance.
Solution Approach 2:
The patent applies copying by using pre-determined beam offset configuration information as a template or copy for quick beam pair adjustment during high-speed movement. Instead of performing complete beam scanning, the system copies and adapts the pre-computed offset values to determine the new optimal beam pair, reducing computational and energy requirements.
3Use of energy by moving object
If the initial matching beam pair is used without adjustment, then the power consumption is reduced, but the transmission performance deteriorates due to changes in relative location during high-speed movement
Solution Approach 1:
The patent applies dynamics by making the beam pair selection adaptive rather than static. The system dynamically adjusts the beam pair based on the detected high-speed movement condition, switching from using the initial matching beam pair directly to using an adjusted beam pair that accounts for the current relative location, thereby maintaining performance while avoiding continuous scanning.
Solution Approach 2:
The patent uses parameter changes by modifying the beam pair parameters (beam indices, beam directions) based on pre-determined beam offset configuration information. When high-speed mode is detected, the system changes the beam parameters from the initial pair to an adjusted pair that compensates for the UE's movement, maintaining transmission performance without real-time scanning.
Data Source
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AI summary
The present invention provides an information transmission method and device, and a User Equipment (UE) and a base station. The method comprises: obtaining wave beam deviation configuration information; when switching from a first preset working mode to a second preset working mode is acquired, adjusting an initial matching wave beam pair according to the wave beam deviation configuration information to obtain a target matching wave beam pair; and transmitting information in the second preset working mode according to the target matching wave beam pair. By using the information transmission method provided by the present invention, the adjustment efficiency of the wave beam pair can be effectively improved so as to adapt to an application scene where the wave beam pair needs to change frequently, thereby ensuring information transmission performance of the UE and the base station in said application scene, saving signaling overhead required by the UE in real-time wave beam scanning, and saving power consumption of the UE and the base station.