Wireless Communication Timing Sequence Alignment
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Solution Overview
Problem
The inconsistency in time sequences between base stations and user equipment due to different service requirements in 5G wireless communication systems, particularly in scenarios with varying subcarrier spacings and time units, leads to communication disruptions.
Innovation Solution
A wireless communication method that determines a uniform time sequence based on a common timing criterion, ensuring consistent time units for both control and data transmission, thereby maintaining smooth communication across different service scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different time units are used for uplink and downlink communication or on different carriers to meet diverse service requirements, then service adaptability is improved, but time sequence consistency deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the timing offset parameter K2 based on the subcarrier spacing configuration. When the first subcarrier spacing is larger than the second subcarrier spacing, a first timing offset K2 is used; when they are equal, a second timing offset K2 is used. This parameter adaptation allows the system to maintain time sequence consistency while supporting different service requirements with varying subcarrier spacings.
Solution Approach 2:
The patent implements dynamics by making the timing offset K2 configurable and adjustable rather than fixed. The network device can dynamically select appropriate timing offset values based on the actual subcarrier spacing configuration, enabling the system to adapt to changing service requirements while maintaining proper time synchronization between base station and user equipment.
2Adaptability or versatility
If flexible time unit mechanisms are implemented to support different service scenarios, then service coverage is improved, but system complexity increases
Solution Approach 1:
The patent simplifies system complexity by using parameter changes - specifically, adjusting the timing offset K2 based on subcarrier spacing relationships. This approach maintains service coverage for different scenarios while avoiding the need for complex time sequence calculations and adjustments, as the timing offset is directly determined by the subcarrier spacing configuration.
Solution Approach 2:
The patent applies preliminary action by pre-defining timing offset relationships based on subcarrier spacing configurations. The network device determines the appropriate K2 value in advance based on the configured subcarrier spacings, eliminating the need for complex real-time calculations and reducing system complexity while maintaining flexible service support.
3Adaptability or versatility
If different subcarrier spacings are configured for different carriers, then service specialization is improved, but scheduling complexity increases
Solution Approach 1:
The patent resolves scheduling complexity through parameter changes - specifically, establishing a direct relationship between subcarrier spacing configuration and timing offset K2. The scheduling complexity is reduced by determining K2 based on simple comparisons of subcarrier spacing values rather than complex multi-parameter calculations, while still supporting specialized services on different carriers with different subcarrier spacings.
Data Source
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AI summary
This application relates to the field of wireless communication, and in particular, to a wireless communication method and a device. This application provides a method, including: if a time unit used to transmit control information is different from a time unit used to transmit data, and the control information is related to the data, determining a time sequence based on a same time unit. In this application, a time sequence is determined based on a same time unit principle, or based on a same timing criterion, so as to determine a uniform time sequence, thereby improving robustness, and ensuring normal communication between a base station and user equipment.