5G DRX Beam Measurement Feedback for Power Efficiency
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Solution Overview
Problem
Current 4G wireless communication systems face challenges in providing high data transmission rates due to limited frequency band availability and severe signal attenuation at higher frequencies, leading to reduced coverage areas and inefficient frequency usage.
Innovation Solution
Implementing an enhanced discontinuous reception (DRX) operation in 5G communication systems that incorporates beam forming, where mobile stations perform beam measurement and feedback to optimize data transmission by determining the best downlink and uplink beams, allowing for efficient power management and extended battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam forming is implemented in 5G communication systems to increase data transmission rates, then data transmission efficiency is improved, but device complexity increases due to additional beam measurement and feedback procedures
Solution Approach 1:
The patent applies preliminary action by performing beam measurement before the actual data transmission during DRX on-duration. The mobile station measures downlink reference signals and determines the best beam in advance, then reports this information to the base station. This allows the base station to use the pre-determined beam information for efficient data transmission without requiring complex real-time beam selection during the transmission itself.
Solution Approach 2:
The patent implements feedback mechanisms where the mobile station reports beam measurement results to the base station. The feedback includes information about the best detected beam, allowing the base station to adjust its transmission parameters accordingly. This feedback loop enables the system to optimize data transmission rates while managing the complexity through structured information exchange between devices.
2Use of energy by moving object
If discontinuous reception (DRX) operation is implemented to save power, then power consumption is reduced, but data transmission efficiency decreases due to interrupted reception
Solution Approach 1:
The patent applies preliminary action by completing beam measurement and feedback transmission before the DRX on-duration begins. This ensures that all necessary beam determination activities are finished during the inactive period or at the very start of the active period, allowing the mobile station to enter deep sleep mode without compromising data transmission efficiency. The beam configuration is established in advance, so when the on-duration starts, the system can immediately begin efficient data transmission.
3Productivity
If beam measurement is performed before DRX on-duration to optimize transmission, then data transmission efficiency is improved, but the time available for measurement is reduced
Solution Approach 1:
The patent applies preliminary action by performing beam measurement as early as possible in the DRX cycle, ideally during the inactive period before the on-duration starts. This timing strategy maximizes the measurement time available while ensuring that the beam determination is completed before data transmission begins. The mobile station can measure reference signals, determine the best beam, and report this information all within the time window before the on-duration, thereby optimizing transmission efficiency without excessive time loss.
4Duration of action of moving object
If enhanced DRX operation with beam forming is implemented, then battery life is extended, but device complexity increases due to additional control procedures
Solution Approach 1:
The patent applies preliminary action by completing all beam measurement and feedback procedures before the DRX on-duration begins. This timing strategy allows the mobile station to enter power-saving mode with confidence that all necessary transmission optimizations have been pre-configured. By performing these complex control procedures during the inactive period rather than continuously, the system extends battery life while managing device complexity through time-separated operations.
Data Source
AI summary
A communication method and a system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for internet of things (IoT) are provided. A terminal and a base station and communication method of the same are provided. The method includes receiving, from a base station (BS), configuration information of discontinuous reception (DRX), performing beam measurement before a start of an on duration of the DRX, transmitting, to the BS, beam feedback information according to the beam measurement result, and performing a certain operation after transmitting the beam feedback information.