Inter-Cell Traffic Coordination for Wireless Networks
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Solution Overview
Problem
Wireless communication systems face challenges in coordinating traffic across cells, leading to interference and reduced communication quality due to the lack of sharing of traffic information between network entities, which affects high-priority communications like ultra-reliable low-latency communications (URLLC) and extended reality (XR) communications.
Innovation Solution
Implementing techniques for sharing traffic information between cells through mechanisms like X2 or Xn interfaces or sidelink connections, allowing network entities to adjust communication parameters to prioritize high-priority communications and reduce interference by coordinating traffic across cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traffic information is not shared between network entities, then device complexity and communication overhead are reduced, but inter-cell interference increases and communication quality deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism (X2/Xn interface or sidelink) that enables selective sharing of traffic information between network entities. This intermediary allows high-priority traffic information to be exchanged while maintaining system architecture integrity and controlling information overhead through standardized protocols and selective reporting based on interference conditions.
2Reliability
If communication parameters are adjusted for high-priority communications, then URLLC and XR communication reliability is improved, but overall network resource utilization may decrease
Solution Approach 1:
The patent dynamically changes communication parameters (modulation and coding scheme, transmission power, resource allocation) based on traffic priority and interference conditions. For high-priority URLLC and XR traffic, parameters are optimized for reliability; for other traffic, parameters are adjusted to maximize resource utilization, creating a dynamic parameter adaptation system that resolves the contradiction between reliability and productivity.
Solution Approach 2:
The patent applies different communication quality standards to different traffic types and spatial locations. High-priority traffic receives enhanced reliability measures (lower modulation, higher power, dedicated resources) in specific time-frequency-spatial resources, while other traffic uses standard parameters. This local quality differentiation ensures URLLC/XR reliability without unnecessarily reducing overall network productivity.
3Reliability
If traffic information is collected and processed by network entities, then cross-cell coordination is improved, but processing complexity and energy consumption increase
Solution Approach 1:
The patent implements partial action by collecting and processing only the necessary subset of traffic information required for cross-cell coordination, rather than all possible traffic data. Network entities selectively gather traffic information based on interference conditions and priority levels, processing only what is essential for coordination decisions, thereby reducing processing complexity and energy consumption while maintaining coordination effectiveness.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A network entity associated with a first cell may obtain a control message that includes traffic information associated with a second cell. The traffic information may indicate a first set of communication parameters associated with traffic for communication via the second cell. Based on the traffic information associated with the second cell, the network entity may communicate, via the first cell, a message with a user equipment (UE) associated with the first cell. For example, a second set of communication parameters associated with the message may be based on the traffic information associated with the second cell.