Orthogonal Time Window Scheduling for Multi-SIM Wireless Conflict Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, User Equipment (UE) with multiple SIM cards faces challenges in coordinating simultaneous communications with multiple networks, leading to conflicts, delays, and interruptions due to differing transmission delays and network compatibility issues, especially when switching between networks like Non-Terrestrial Networks (NTN) and Terrestrial Networks (TN).
Innovation Solution
A method involving the use of K1 time windows, where K1 is a positive integer greater than 1, with orthogonal time windows and a minimum time interval, allows for coordinated wireless transmission and reception by requesting network access and maintaining RRC connections within these time windows to manage network transitions and reduce conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UE communicates with multiple networks simultaneously using multiple SIM cards, then network coverage and communication flexibility are improved, but coordination conflicts and transmission delays increase
Solution Approach 1:
The patent segments the communication time into multiple orthogonal time windows (first time window, second time window, third time window) for different networks. Each time window is dedicated to specific network communications, preventing simultaneous transmission conflicts. The UE switches between networks by activating specific receivers during designated time windows, ensuring reliable coordination while maintaining multi-network connectivity.
Solution Approach 2:
The patent implements dynamic time window configuration where the network can adjust the timing, duration, and orthogonality of time windows based on communication needs. The first message dynamically indicates K1 time windows with configurable parameters, allowing the system to adapt to varying network conditions, traffic patterns, and delay requirements while maintaining reliable coordination.
2Adaptability or versatility
If the UE leaves the current network to communicate with another network for a long time, then network switching capability is improved, but the current network connection stability deteriorates
Solution Approach 1:
The patent establishes preliminary time window configurations before network switching occurs. The network pre-arranges first time windows, second time windows, and third time windows with orthogonal relationships, so the UE knows in advance when to switch receivers and maintain connections. This preliminary scheduling ensures stable connection management while enabling seamless network switching capability.
Solution Approach 2:
The patent implements periodic time window patterns where the UE alternates between different networks in predetermined intervals. The orthogonal time windows create a periodic switching rhythm, allowing the UE to systematically manage multiple network connections without causing prolonged absence from any single network, thus maintaining connection stability while enabling network switching.
3Stability of the object's composition
If the current network allows the UE to leave for a very short period of time, then connection stability is maintained, but coordination with networks having large transmission delays becomes impossible
Solution Approach 1:
The patent applies different time window characteristics to different networks based on their specific requirements. Networks with large transmission delays (like NTN) are allocated time windows with longer durations and appropriate intervals, while networks requiring stability are given shorter windows. This localized customization of time window properties allows each network to operate optimally without compromising overall system coordination capability.
Solution Approach 2:
The patent dynamically changes time window parameters (duration, interval, orthogonality) based on network type and communication requirements. The first message can indicate different K1 time window configurations for different networks, adjusting parameters to accommodate large transmission delays in NTN while maintaining connection stability for TN, thereby enabling coordination across diverse network types with varying delay characteristics.
Data Source
AI summary
The present disclosure provides a method and a device for wireless communications, including transmitting a first message; the first message being used to indicate K1 time windows; and receiving a first signaling; herein, K1 is a positive integer greater than 1; any two of the K1 time windows are orthogonal, the K1 time windows are chronologically arranged, and a time interval between any two of the K1 time windows in time domain is no smaller than a first time threshold; the first message is used to request for stopping wireless transmission for a transmitter for the first signaling in the K1 time windows; the first signaling is used for indicating acceptance of the request of the first message; a transmission time for the first message is a period of time other than the K1 time windows. The present disclosure is useful in decreasing conflicts.