Full-Duplex Power Parameter Switching Across 5G NR Slots
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing transmission and reception power in full-duplex systems, particularly in 5G/NR networks, where simultaneous transmission and reception lead to interference and inefficiencies.
Innovation Solution
A method and apparatus for a user equipment (UE) and base station (BS) to dynamically adjust transmission and reception power based on slot configurations, using separate sets of parameters for slots with and without simultaneous transmission and reception capabilities, and applying power adjustment values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate parameter sets are used for full-duplex and half-duplex slots, then power management accuracy is improved, but system complexity increases
Solution Approach 1:
The patent divides the time domain into two distinct types of slots: full-duplex slots (where simultaneous transmission and reception occur) and half-duplex slots (where only one direction operates at a time). Each slot type is assigned its own parameter set (first parameter set for half-duplex, second parameter set for full-duplex), allowing independent power management optimization for each scenario without interfering with the other.
Solution Approach 2:
The system dynamically selects which parameter set to apply based on the current slot type. The network device configures both parameter sets and indicates to the terminal device which set should be used for each slot through dynamic signaling. This dynamic adaptation allows the system to respond to changing duplex requirements while maintaining optimal power management.
2Productivity
If power adjustment values are applied dynamically, then communication efficiency is improved, but processing overhead increases
Solution Approach 1:
The patent introduces power adjustment values as configurable parameters that modify the nominal power levels for downlink channels and signals. These adjustment values are specifically tailored for full-duplex slots to account for the unique interference characteristics and power requirements of simultaneous transmission and reception. By changing power parameters dynamically based on slot type, the system optimizes communication efficiency while managing the complexity through structured parameter configuration.
Data Source
AI summary
Apparatuses and methods for transmission power in full-duplex systems. A method of operating a user equipment (UE) for receiving a downlink (DL) channel or signal includes receiving first information for a first set of parameters for a first DL channel or signal associated with a first subset of slots from a set of slots on a cell and second information for a second set of parameters for a second DL channel or signal associated with a second subset of slots from the set of slots on the cell. The method further includes determining, based on a slot for a reception being from the second subset of slots, to use the second set of parameters for the reception and receiving, based on a power adjustment value in the second set of parameters, the second DL channel or signal in the slot.