Unified TCI Windows for Full-Duplex Scheduling Latency
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Solution Overview
Problem
Conventional wireless communication systems face challenges in configuring and scheduling full-duplex communications due to activation latencies and increased complexity, particularly in applying separate downlink and uplink configurations, which can lead to higher latency and reduced spectrum efficiency.
Innovation Solution
The implementation of unified transmission configuration indicator (TCI) windows for both full-duplex and half-duplex communications, allowing for simultaneous configuration of downlink and uplink channels, reducing the need for separate activation and minimizing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate downlink and uplink configurations are applied for full-duplex communications, then communication flexibility is improved, but activation latency increases and device complexity increases
Solution Approach 1:
The patent combines separate downlink and uplink TCI configuration procedures into a unified TCI configuration mechanism. The network device configures a unified TCI state that simultaneously applies to both downlink and uplink communications, eliminating the need for separate activation procedures and reducing activation latency while maintaining full-duplex communication capability.
Solution Approach 2:
The unified TCI configuration mechanism serves multiple functions: it configures both downlink and uplink transmission parameters, handles both full-duplex and half-duplex modes, and provides a single activation procedure that replaces multiple separate configurations. This multi-functional approach reduces system complexity and activation latency.
2Adaptability or versatility
If separate downlink and uplink configurations are applied for full-duplex communications, then communication flexibility is improved, but device complexity increases
Solution Approach 1:
The patent merges separate downlink and uplink TCI configuration procedures into a unified configuration mechanism. The network device generates a single unified TCI configuration that simultaneously applies to both downlink and uplink, eliminating the need for multiple separate configuration procedures and reducing device complexity.
Solution Approach 2:
The unified TCI configuration mechanism provides universal configuration capability for both downlink and uplink communications, as well as for both full-duplex and half-duplex modes. This single mechanism replaces multiple specialized configuration procedures, thereby reducing overall system complexity.
3Productivity
If unified TCI windows are used for both full-duplex and half-duplex communications, then spectrum efficiency is improved, but communication mode flexibility is reduced
Solution Approach 1:
The patent implements a dynamic unified TCI configuration mechanism that can adapt to different communication modes. The system uses a unified TCI window structure for both full-duplex and half-duplex communications, but dynamically adjusts the configuration parameters and activation timing based on the current communication mode, thereby maintaining spectrum efficiency while preserving mode flexibility.
Solution Approach 2:
The unified TCI configuration mechanism changes parameters dynamically based on communication mode. For full-duplex mode, it applies simultaneous downlink and uplink configurations within the unified window, while for half-duplex mode, it adjusts the timing and parameter application to suit sequential transmission. This parameter adaptation maintains both spectrum efficiency and mode flexibility.
Data Source
AI summary
Example aspects include a method, apparatus, and computer-readable medium for wireless communication at a user equipment (UE) of a wireless communication network, comprising receiving, from a base station, configuration information scheduling one or more full-duplex communications and one or more half-duplex communications. A first unified transmission configuration indicator (TCI) window corresponding to the one or more full-duplex communications. A second unified TCI window corresponding to the one or more half-duplex communications. The aspects further include performing full-duplex communications according to the first unified TCI window for a first time period having a first length. Additionally, the aspects further include performing half-duplex communications according to the second unified TCI window for a second time period having a second length.