Uplink Switching Time and Data Preparation for UE Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing uplink transmission switching times and data preparation times for user equipment (UE) due to thermal and power consumption limitations, affecting communication efficiency, particularly in scenarios involving multiple frequency bands and MIMO operations.
Innovation Solution
UEs report their uplink transmission switching time and data preparation time to the base station (BS), allowing the BS to schedule uplink communications that accommodate these times, ensuring efficient resource allocation and minimizing communication disruptions during switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE switches between different frequency bands for uplink transmission, then the UE can support multiple frequency bands and MIMO operations, but the thermal and power consumption limitations are exceeded
Solution Approach 1:
The base station schedules uplink transmissions by anticipating the UE's switching time and data preparation time requirements. The BS determines the switching time based on the UE's capability information and pre-calculates appropriate scheduling decisions before transmitting uplink grants, allowing the UE to switch frequency bands without exceeding thermal or power consumption limitations during actual transmission.
2Productivity
If the UE reduces uplink data preparation time to improve communication efficiency, then the productivity increases, but the reliability of data transmission decreases
Solution Approach 1:
The system dynamically adjusts the uplink data preparation time parameter based on the UE's capability information and current communication conditions. The base station determines appropriate preparation time values that balance the need for fast communication (productivity) with sufficient time for reliable data processing and transmission, adapting the parameter rather than using fixed values.
3Ease of operation
If the BS schedules uplink transmissions without considering UE switching time, then the scheduling simplicity is maintained, but the communication efficiency decreases
Solution Approach 1:
The UE provides capability information feedback to the base station regarding its switching time and data preparation time characteristics. The base station uses this feedback to determine appropriate scheduling decisions that account for the UE's specific timing requirements, enabling efficient communication without requiring complex real-time negotiations while maintaining scheduling simplicity through standardized capability reporting.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for uplink scheduling for communication on an uplink from a user equipment (UE) to a base station (BS). The uplink scheduling is based on uplink transmission (UL Tx) switching time and/or uplink data preparation time of the UE. The uplink data preparation time is calculated based on the UL Tx switching time. For example, a UE can report to a BS at least one of an indication of a UL Tx switching time and an uplink data preparation time of the UE. In return, the UE can receive an indication of uplink scheduling from the BS, which the UE can use to communicate with the BS.